Dell 1907FPc Service Manual.pdf

Dell 1907FPc

1

19 LCD MONITOR DELL 1907FPc

THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY.EVERY REASONABLE EFFORT

HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE

ACCURACY OFTHIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RELIABILITY FOR

CHANGES, ERRORS OR OMISSIONS.

Service Manual

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Table of contents

Table of contents------------------------------------------------------------------------------------------------------------------------- 02Revision List -------------------------------------------------------------------------------------------------------------------------------03ECN History-------------------------------------------------------------------------------------------------------------------------------- 04Important Safety Notice --------------------------------------------------------------------------------------------------------------- 051. Monitor Specifications -----------------------------------------------------------------------------------------------------------062. LCD Monitor Description ------------------------------------------------------------------------------------------------------- 073. Operation instructions --------------------------------------------------------------------------------------------------------------08

3.1 General Instructions ----------------------------------------------------------------------------------------------------08

3.2 Control buttons -------------------------------------------------------------------------------------------------------------08

3.3 Adjusting the Picture ---------------------------------------------------------------------------------------12

3.4 Connect Your Monitor ----------------------------------------------------------------------------------------------------------19

4. Input/Output Specification ---------------------------------------------------------------------------------------------------204.1 Input Signal Connector ----------------------------------------------------------------------------------------------------20

4.2 Factory Preset Display Modes ----------------------------------------------------------------------------------------- 21

4.3 Power Supply Requirements ---------------------------------------------------------------------------------------- 21

4.4 Panel Specification ---------------------------------------------------------------------------------------------------------- 22

5. Block Diagram ---------------------------------------------------------------------------------------------------------------------25 5.1 Monitor Exploded View ----------------------------------------------------------------------------------------------------25

5.2 Software Flow Chart ---------------------------------------------------------------------------------------------------------27

5.3 Electrical Block Diagram --------------------------------------------------------------------------------------------------29

6. Schematic Diagram -------------------------------------------------------------------------------------------------------------31 6.1 Main Board --------------------------------------------------------------------------------------------------------------------31

6.2 Power Board -------------------------------------------------------------------------------------------------------------------36

6.3 USB Board ------------------------------------------------------------------------------------------------------------------------38

7. Layout --------------------------------------------------------------------------------------------------------------------------- 40 7.1 Main Board --------------------------------------------------------------------------------------------------------------------- 40

7.2 Power Board ------------------------------------------------------------------------------------------------------------------- 41

7.3 USB Board ---------------------------------------------------------------------------------------------------------------------- 43

7.4 Key Board ---------------------------------------------------------------------------------------------------------------------- 43

8. Mechanical Instruction --------------------------------------------------------------------------------------------------------- 449. Maintainability -------------------------------------------------------------------------------------------------------------------- 53 9.1 Equipments and Tools Requirement -------------------------------------------------------------------------------- 53

9.2 Trouble Shooting ----------------------------------------------------------------------------------------------------------- 5410. White Balance Adjustment --------------------------------------------------------------------------------------------------- 6011. EDID Content -------------------------------------------------------------------------------------------------------------------- 6212. ISP Instruction -------------------------------------------------------------------------------------------------------------- 6313. Check List -------------------------------------------------------------------------------------------------------------------------69

14. BOM List ------------------------------------------------------------------------------------------------------------------------------ 72

15. Definition Of Pixel Defects------------------------------------------------------------------------------------------------------105

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Revision List

Revision Release Date Revise history TPV model Remark

A00 Nov.-28-2005 Initial Release

T980KSCDKRDFUP

ROHS BOM

T980KSCDKRDMUP

T980KGCHKRDGUP

T980KGCHKRDEUP

A01 Dec.22-2005 Sold area in EU and attach the corresponding BOM

T980KSCHBRDGQP

A02 Mar.-28-2006 Add Definition Of Pixel Defects

A03 April-25-2006 Add Max Brightness measurement on

Page60

A04 Mar.-30-2007 Update Mechanical Instruction in item 8

A05 Nov.-30-2007 Add ECN History

A06 Dec.-20--2007 Add the CBPC,PWPC Version

information in BOM list

Dec.-20--2007

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ECN History

ECN No. Change Description Service Deposition Cut-in date MSR

ECN-D-EE105 Enhance the button structure

Rework on VFF and customer complain power button defect;Purge service center parts inventory. New Part Number: 33G4940 Old Part Number: 33G0120

Dec-24-2006 A00

ECR027569 -- Firmware update from

V4C08 to V4C09

-- PPID change from

A00 to A01

Upgrade the Vista firmware

on verified failure;

2007/2/1 A01

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Important Safety Notice ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES. CAUTION: USE A SEPARATE ISOLATION TRANSFORMER FOR THIS UNIT WHEN SERVICING REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINGS Proper service and repair is important to the safe, reliable operation of all Dell Company** Equipment. The service procedures recommended by Dell and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended. It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Dell could not possibly know, evaluate and advise the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way. Consequently, Dell has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by Dell must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected. * * Hereafter throughout this manual, Dell Company will be referred to as Dell. WARNING Use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock, fire, or other hazards.

Under no circumstances should the original design be modified or altered without written permission from Dell. Dell assumes no liability, express or implied, arising out of any unauthorized modification of design. Servicer assumes all liability.

Take care during handling the LCD module with backlight unit - Must mount the module using mounting holes arranged in four corners. - Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the

screen. - Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in

damage to the Panel. - Protect the module from the ESD as it may damage the electronic circuit (C-MOS). - Make certain that treatment persons body is grounded through wristband. - Do not leave the module in high temperature and in areas of high humidity for a long time. - Avoid contact with water as it may a short circuit within the module.

If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth

may damage the panel.)

FOR PRODUCTS CONTAINING LASER:

DANGER - Invisible laser radiation when open. AVOID DIRECT EXPOSURE TO BEAM. CAUTION - Use of controls or adjustments or performance of procedures other than those

specified herein may result in hazardous radiation exposure. CAUTION - The use of optical instruments with this product will increase eye hazard.

TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF THIS SERVICE MANUAL.

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1. Monitor Specifications

LCD Panel

Screen type Active matrix - TFT LCD

Panel Type LTM190EX-L01 (LPL)

LM190E03-TLB4 (SEC)

Size 480mm(19.0")

Display Area 376.32(H) x 301.056(V)

Pixel pitch 0.294mm(H) x 0.294mm(V)

Viewable angle (CR>=10) 150(H) / 135(V) (type) (For LTM190EX-L01 panel)

140(H) / 140(V) (type) (For LM190E03-TLB4 panel)

Response time 8ms(type)

Input

Video R, G, B Analog Interface

Separate Sync H/V TTL

H-Frequency 30kHz 81kHz

V-Frequency 56 - 76Hz

Display Colors 16.7M Colors

Dot Clock 165MHz (Max)

Optimal preset resolution 1280 x 1024 at 60 Hz

Highest preset resolution 1280 x 1024 at 75 Hz

Plug & Play VESA DDC

EPA ENERGY STAR

ON Mode (with Dell Sound bar and USB active)

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2. LCD Monitor Description The LCD monitor will contain a main board, Power board, key board, and USB board which house the flat panel

control logic, brightness control logic and DDC.

The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips

each voltage.

Monitor Block Diagram

Video signal, DDC

Power board

(Include: Inverter and adapter)

Flat Panel and

CCFL backlight

Main Board

Keyboard

RS232 Connector

For white balance

adjustment in factory

mode

CCFL Drive.

AC-IN

100~240V HOST Computer

USB board

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3. Operation instructions 3.1 General Instructions

Press the power button to turn the monitor on or off. The other control buttons are located at front panel

of the monitor. By changing these settings, the picture can be adjusted to your personal preferences.

- The power cord should be connected. - Connect the video cable from the monitor to the video card.

- Press the power button to turn on the monitor, the power indicator will light up. 3.2 Control Buttons

1. Input select

2. OSD menu / select button

3. Down button

4. Up button

5. Power button (with power light indicator)

Using the front panel Use the buttons on the front of the monitor to adjust the image settings.

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Input select

Use the Input Select button to select between two different video signals that may be

connected to your monitor.

NOTE: The floating 'Dell Self-test Feature Check' dialog appears on a black

background If the monitor cannot sense a video signal. Depending upon the

selected input, one of the dialogs shown below will scroll continually.

OSD menu /

select

The Menu button is used to open and exit the on-screen display (OSD), and exit from

menus and sub-menus.

Down (-) and

Up (+)

Use these buttons to adjust (decrease/increase ranges) items in the OSD menu.

Power Button

and Indicator

Use the power button to turn the monitor on and off.

The green light indicates the monitor is on, and fully functional. An amber light indicates

power save mode.

Back View

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1 VESA mounting holes (100mm)

(Behind attached base plate) Use to mount the monitor.

2 Barcode serial number label Refer to this label if you need to contact Dell for technical support.

3 Security lock slot Use a security lock with the slot to help secure your monitor.

4 Dell Soundbar mounting brackets Attach the optional Dell Soundbar.

5 Regulatory rating label List the regulatory approvals.

6 Stand removal button Press to release the stand

7 Cable holder Help organize cables by placing them in the holder.

8 Lock down/release button Push the monitor down, press the button to unlock the monitor,

and then lift the monitor to the desired height.

Bottom View

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1 Power connector Insert the power cable.

2 Dell Soundbar power connector Connect the power cord for the Soundbar (optional).

3 DVI connector Connect your computer DVI cable.

4 VGA connector Connect your computer VGA cable.

5 USB upstream connector

Connect the USB cable that came with your monitor to the monitor

and the computer. Once this cable is connected you can use the

USB connectors on the side and bottom of the monitor.

6 USB connector Connect your USB devices.

Side View

USB

connectors

(downstream)

Left side Right side

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3.3 Adjusting the Picture

NOTE: If you change the settings and then either proceed to another menu, or exit the OSD menu, the

monitor automatically saves those changes. The changes are also saved if you change the settings and then

wait for the OSD menu to disappear.

Main Menu for Analog (VGA) Input Main Menu for Digital (DVI) Input

Or

NOTE: Positioning and Image Settings are only available when you are using the analog (VGA)

connector.

1. Push the MENU button to open the OSD menu and display the main menu.

2. Push the - and + buttons to move between the setting options. As you move from one icon to another,

the option name is highlighted. See the table below for a complete list of all the options available for the

monitor.

3. Push the MENU button once to activate the highlighted option.

4. Push - and + button to select the desired parameter.

5. Pus h MENU to enter the slide bar and then use the - and + buttons, according to the indicators on the

menu, to make your changes.

6. Push the MENU button once to return to the main menu to select another option or push the MENU button

two or three times to exit from the OSD menu.

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Icon Menu and

Submenus Description

Exit Select to exit the Main menu

Brightness/

Contrast

Brightness adjusts the luminance of the backlight.

Adjust Brightness first, then adjust Contrast only if further adjustment is

necessary.

Push the + button to increase luminance and push the - button to decrease

luminance (min 0 ~ max 100).

Contrast adjusts the degree of difference between darkness and lightness on the

monitor screen.

Push the + button to increase the contrast and push the - button to decrease the

contrast (min 0 ~ max 100).

NOTE: When using DVI source, the contrast adjustment is not

available.

Positioning:

Horizontal

Vertical

Positioning moves the viewing area around on the monitor screen.

When making changes to either the Horizontal or Vertical settings, no changes

occur to the size of the viewing area. The image shifts in response to your

selection.

Minimum is 0 (-) and maximum is 100 (+).

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NOTE: When using DVI source, the Positioning option is not

available.

Auto Adjust Even though your computer recognizes your monitor on startup, the Auto

Adjustment function optimizes the display settings for use with your particular

setup.

Select to activate automatic setup and adjustment. The following dialog appears

on a black screen as the monitor self-adjusts to the current input:

Auto Adjust In Progress

Auto Adjustment allows the monitor to self-adjust to the incoming video signal.

After using Auto Adjustment, you can further tune your monitor by using the Pixel

Clock (Coarse) and Phase (Fine) controls under Image Settings.

In most cases, Auto Adjust produces the best image for your

configuration.

Image

settings:

Pixel Clock

(Coarse)

Phase (Fine)

The Phase and Pixel Clock adjustments allow you to more closely adjust your

monitor to your preference. These settings are accessed through the main OSD

menu, by selecting Image Settings.

Use the - and + buttons to make adjustments. (Minimum: 0 ~ Maximum: 100)

If satisfactory results are not obtained using the Phase adjustment, use Pixel

Clock (Coarse) and then use Phase (fine), again.

NOTE: This function may change the width of the display image.

Use the Horizontal function of the Position menu to center the

display image on the screen.

NOTE: When using DVI source, the Image Settings option is not

available.

Color

Settings

Color Settings adjusts the color temperature, color hue, and saturation.

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Blue Preset

Red Preset

Normal

Preset

User Preset

The color hue is most noticeable in areas of white.

Blue Preset is selected to obtain a bluish tint. This color setting is typically used for text based applications (spreadsheets, programming,

text editors, etc.).

Red Preset is selected to obtain a redder tint. This color setting is typically used for color-intensive applications (photograph image editing,

multimedia, movies, etc.).

Normal Preset is selected to obtain the default (factory) color settings. This setting is also the sRGB standard default color space.

User Preset: Use the plus and minus buttons to increase or decrease each of the three colors (R, G, B) independently, in single digit

increments, from 0 to 100.

OSD

Settings:

Horizontal

Position

Vertical

Position

OSD Hold

Time

Adjust the settings for the OSD, including the location, the amount of time the

menu remains on-screen, and the rotation of the OSD.

Position of the OSD:

To adjust the horizontal position of the OSD, use the - and + buttons, and move OSD to the left and right.

To adjust the vertical position of the OSD, use the - and + buttons, and move OSD down and up.

OSD Hold Time:

The OSD stays active for as long as it is in use. Adjusting the hold time, sets the

length of time the OSD remains active after the last time you pressed a button.

Use the - and + buttons to adjust the slider in 5 second increments, from 5 to 60

seconds.

OSD Lock:

Controls user access to adjustments. When Yes (+) is selected, no user

adjustments are allowed. All buttons are locked except the menu button.

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OSD Lock

NOTE: When the OSD is locked, pressing the menu button takes the

user directly to the OSD settings menu, with OSD Lock selected.

Select No (-) to unlock and allow user access to all applicable settings.

NOTE: You can also lock or unlock the OSD by pushing and holding

the Menu button for 15 seconds.

Language Select to have the OSD display in one of five languages (English, French,

Spanish, German, or Japanese).

NOTE: The change only affects the OSD. It has no effect on any

software running on the computer.

Audio

(optional)

You can select to have the audio on or off when the monitor is in power saving

mode.

Yes enables audio

No disables audio (default)

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NOTE: When the Dell Soundbar is not properly connected to the

monitor, the audio menu is not available.

Factory

Reset:

Reset the OSD menu options to the factory-preset values.

Exit Select to exit out of Reset to Factory Settings menu without resetting

any OSD options.

Position settings only Change the settings for Image Position back to

original factory settings.

Color settings only Change the Red, Green, and Blue settings

back to their original factory settings and set the default setting

for Normal Preset.

All settings Change all the user-adjustable settings including color, position,

brightness, contrast and OSD hold time to the factory defaults. The language of

the OSD does not change.

OSD Warning Messages

One of the following warning messages may appear on the screen indicating that the monitor is out of

synchronization.

1. Analog Input

Cannot Display This Video Mode

Optimum Resolution 1280 x1024 60Hz

2. Digital Input

Cannot Display This Video Mode

Optimum Resolution 1280 x1024 60Hz

This means that the monitor cannot synchronize with the signal that it is receiving from the computer. Either

the signal is too high or too low for the monitor to use. See Specifications for the Horizontal and

Vertical frequency ranges addressable by this monitor. Recommended mode is 1280 X 1024 @ 60Hz.

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NOTE: The floating Dell Self-test Feature Check dialog appears on-screen if the monitor cannot sense

a video signal.

Or

Occasionally, no warning message appears, but the screen is blank. This could also indicate that the monitor

is not synchronizing with the computer.

3.4 Connect Your Monitor

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions.

Or

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1. Turn off your computer and disconnect the power cable.

2. Connect either the white DVI or blue VGA cables to the connectors on the computer and the monitor.

3.

Connect the USB cable that was included with your monitor to the computer and the upstream USB connector

on the monitor. Once this cable is connected to the computer and the monitor, you can use the USB connectors

on the monitor.

4. Connect any USB devices.

5. Connect the power cables

6. Turn on your monitor and computer. If you do not see an image, push the input select button and ensure the

correct input source is selected.

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4. Input/Output Specification 4.1 Input Signal Connector 4.1.1 D-Sub Connector

Pin Signal Assignment Pin. Signal Assignment

1. Red Video 9. DDC +5V

2. Green Video 10. GND-Sync

3. Blue Video 11. GND

4. GND 12. DDC Data

5. Self Test 13. H-Sync

6. R-Ground 14. V-Sync

7. G-Ground 15. DDC Clock

8. B-Ground

VGA Connector layout

4.1.2 DVI Connector

Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment

1 T.M.D.S. Data 2- 9 T.M.D.S. Data 1- 17 T.M.D.S. Data 0-

2 T.M.D.S. Data 2+ 10 T.M.D.S. Data 1+ 18 T.M.D.S. Data 0+

3 T.M.D.S. Data 2 Shield 11 T.M.D.S. Data 1 Shield 19 T.M.D.S. Data 0 Shield

4 No Pin 12 No Pin 20 No Pin

5 No Pin 13 No Pin 21 No Pin

6 DDC Clock 14 +5V Power 22 T.M.D.S. Clock Shield

7 DDC Data 15 Ground (for +5V) 23 T.M.D.S. Clock +

8 No Connect 16 Hot Plug Detect 24 T.M.D.S. Clock -

DVI Connector Layout

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4.2 Factory Preset Display Modes

Display Mode Horizontal

Frequency (kHz)

Vertical

Frequency (Hz)

Pixel Clock

(MHz)

Sync Polarity

(Horizontal/Vertical)

VESA, 720 x 400 31.5 70.0 28.3 -/+

VESA, 640 x 480 31.5 60.0 25.2 -/-

VESA, 640 x 480 37.5 75.0 31.5 -/-

VESA, 800 x 600 37.9 60.3 49.5 +/+

VESA, 800 x 600 46.9 75.0 49.5 +/+

VESA, 1024 x 768 48.4 60.0 65.0 -/-

VESA, 1024 x 768 60.0 75.0 78.8 +/+

VESA, 1152 x 864 67.5 75.0 108 +/+

VESA, 1280 x 1024 64.0 60.0 135.0 +/+

VESA, 1280 x 1024 80.0 75.0 135.0 +/+

4.3 Power Supply Requirements

A/C Line voltage range : 100 V ~ 240 V

A/C Line frequency range : 50 3Hz, 60 3Hz Current : 1.5A max at 100V; 0.8A max at 240 V

Peak surge current : < 60A peak at 240 VAC and cold starting

Leakage current : < 3.5mA

Power line surge : No advance effects (no loss of information or defect)

with a maximum of 1 half-wave missing per second

DC output Voltage : 5VDC 5; 12VDC 5

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4.4 Panel Specification 4.4.1 Display Characteristics For LTM190EX- L01 panel

For LM190E03-TLB4 panel

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4.4.2 Optical Characteristics For LTM190EX- L01 panel

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For LM190E03-TLB4 panel

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5. Block Diagram 5.1 Monitor Exploded View

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5.2 Software Flow Chart

1

2

N

Y

5

Y

N

10

Y

N

12

Y

N

7

Y

N

6

4

3

8

9

14

11

13

Y

N

15

Y

N16

17

19

Y

N 18

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1) MCU Initializes.

2) Is the EEprom blank?

3) Program the EEprom by default values.

4) Get the PWM value of brightness from EEprom.

5) Is the power key pressed?

6) Clear all global flags.

7) Are the AUTO and SELECT keys pressed?

8) Enter factory mode.

9) Save the power key status into EEprom.

Turn on the LED and set it to green color. Scalar

initializes. 10) In standby mode?

11) Update the lifetime of back light.

12) Check the analog port, are there any signals coming?

13) Does the scalar send out an interrupt request?

14) Wake up the scalar.

15) Are there any signals coming from analog port?

16) Display "No connection Check Signal Cable" message. And go into standby mode after the message

disappears. 17) Program the scalar to be able to show the coming mode.

18) Process the OSD display.

19) Read the keyboard. Is the power key pressed?

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5.3 Electrical Block Diagram 5.3.1 Main Board

OSD Control

Interface

(CN403)

Scalar GM5621

(Include MCU, ADC, OSD)

(U401)

Flash Memory

PM25LV010-25SCE

(U402)

EEPROM

M24C16-WMN6TP

(U403)

D-Sub

Connector

(CN202)

EEPROM (U202)

M24C02-WMN6TP

R

G

B

RXD

TXD

DB15_SDA,DB15_SCL

EPR_SDA EPR_SCL

LCD Interface

(CN501)

H

V

DVI

Connector

(CN201)

EEPROM (U201)

M24C02-WMN6TP

X301 CRYSTAL

14.318MHzHC-49U

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5.3.2 Inverter/Power Board

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6. Schematic Diagram Main Board

E

Input Connectors

2 6Monday, November 14, 2005

Dell 1907FPcTitle

Size Document Number Rev

Date: Sheet of

GND

GREEN- (3)

GND

VS_IN

Gin

FB202

60 OHM

RX2- (3)

R216 220 1/16W VGA_5V

D209BAV70

3

1 2

RX0- (3)

HS_in

CN202

DB15162738495

11

12

13

14

1510

1

7

1

6

GND

FB204

430 OHM

CABLE_DET (3)

GND

RXC+IN

SDA_IN

GND

GND

Q201

2N7002E

3 D

1

G

2S

GND

R243 0 1/16W

D203BAV99

3

12

D207BAV99

3

12

RX0+ (3)

GREEN+ (3)

DVI_HPD

+5V

R215 220 1/16W

R207 10 1/16W

GND

HS (3)

CN201

JACK

12345678

9101112131415

1718192021

2324

C1

16

22

C2C3C4C5

25

26T2-T2+

SGNDT4-T4+

DDCCLKDDCDAT

A_VSYNC

T1-T1+

SGNDT3-T3++5V

GND

T0-T0+

SGNDT5-T5+

TC+TC-

A_RED

HPD

SGND

A_GREENA_BLUE

A_HSYNCA_GND

A_GND

A_GND

R237 220 1/16W

ZD201

UDZS5.6B

2

DVI_5V

+5V

RXC- (3)

8/16

R210

220 1/16W

C216 0.01uF

C2220.1uF/16V

R238 220 1/16W

FB203

60 OHM

RX1-IN

C211 0.01uF

+5V

Pins 6/7/8 are R/G/Breturn lines resp.

ZD212UDZS5.6B

ZD202

UDZS5.6B

DDC_SDA_VGA(3)

ZD203

UDZS5.6B

DDC_SDA_DVI (3)

R2412.2K 1/16W

C2140.1uF/16V

+5V

BLUE+ (3)

DDC_SDA_A

C212 0.01uF

RED- (3)

C215 0.01uF

U201

M24C02WMN6

4

8123

765

GND

VCCA0A1A2

WPSCLSDA

DDC_SCL_DVI (3)

R211

1

0

K

1

/

1

6

W

C210 0.01uF

GND

RX2+IN

FB201

60 OHM

DVI_EDID_WP

(3)

ZD204UDZS5.6B RED+ (3)

RX2-IN

R204 10 1/16W

VGA_5V

R2402.2K 1/16W

ZD210

UDZS5.6B

D213

BAV99

3

1 2

R239 220 1/16W

+5V

R230100 1/16W

R22975 1/16W

+5V

GND

RXC+ (3)

SCL_IN

1

+3.3V_VDD

RX2+ (3)

ZD209UDZS5.6B

DDC_SCL_A

R2274.7K 1/16W

R218 33K 1/16W

BLUE- (3)

RX1- (3)

DVI_HPD

3

+5V

GND

D205BAV99

3

12

C2210.1uF/16V

Rin

R209 10 1/16W

GND

GND

R22375 1/16W

VS (3)

D210BAV70

3

1 2

C2200.1uF/16V

C21822pF

D208BAV99

3

12

R228 220 1/16W

U202

M24C02WMN6

4

8123

765

GND

VCCA0A1A2

WPSCLSDA

C213 0.01uF

GND

ZD208

UDZS5.6B

RX1+ (3)

R212

4

.

7

K

1

/

1

6

W

C2090.1uF/16V

Bin

C2011000pF

HOT_PLUG

RX0+IN

R232

220 1/16W

R244

10K 1/16W

R205 10 1/16W

D202BAV99

3

12

SDA_IN

D206BAV99

3

12

ZD211

UDZS5.6B

GND

R206 10 1/16W

75-ohm terminating resistorvery close to the VGAconn.

R233

75 1/16WZD207

U

D

Z

S

5

.

6

B

R224100 1/16W

C2190.1uF/16V

D204BAV99

3

12

VGA_PLUG

SCL_IN

R234

75 1/16W

VGA_PLUG

R22075 1/16W

GND

R222100 1/16W

R226

4

.

7

K

1

/

1

6

W

D211BAV99

3

1 2

R203 10 1/16W

R214

10K 1/16W

(8 mil)

GND

R208 10 1/16W

RX1+IN

R217 22K 1/16W

R23575 1/16W

(10 mil, )

GND

R2424.7K 1/16W

GND

RXC-IN

DDC_SCL_VGA(3)

R202 10 1/16W

D201BAV99

3

12

RX0-IN

D212BAV99

3

1 2

C21722pF

R213

4

.

7

K

1

/

1

6

W

DVI_5V

R201 10K 1/16W

GND

www.ma163.com ???????

Dell 1907FPc

32

ROM_SCLK

PPWR

LVDS_O2

L301120 OHM +C301

22uF

X301

14.318MHz

C327 33pF

LVDS_E8

R3244.7K 1/16W

BLUE+(2)

RX0-(2)

CABLE_DET (2)

LVDS_O3

GND

LVDS_E[0..9]

G-PROBE

GND

C330

0.1uF/16V

R333 NC

R

3

0

3

NC

ATMELSPI ROM

LVDS_E7

C306

0.1uF/16V

LVDS_O[0..9]RXC+(2)

C310

0.1uF/16V

R302 249 1/16W3.3V_DVDD

OPTIONALFORDEBUGGINGPURPOSESONLY

LVDS_E[0..9] (5)

LVDS_O0

LVDS_E6

UDART_DO

6/14 Added

RX2+(2)

8/16 Modified

1.8V_DVDD

R3234.7K 1/16W

LBADC2 (4)

C323

0.1uF/16V

GND

R331 0 1/16W

R327

NC

C324

0.1uF/16V

V_EDID_ATMEL

GREEN+(2)

LED_O (4)

UDART_DI

C318

0.1uF/16V

U403

NC

1234 5

678A0

A1A2VSS SI

SCKWP

VCC

LVDS_O4

C302

0.1uF/16V

C305

0.1uF/16V

10 KOhm

+C31622uF

GND

+3.3V_VDD

NVRAM_SCL

C304

0.1uF/16V

R311 100 1/16W

ATMEL_EN

Burst CTRL(6)

R3164.7K 1/16W

R332 NC

(PWM1)

2

9/21 modified

R326NC

ROM_SDI

Default

+3.3V_VDD

R

3

2

5

NC

3.3V_PVDD

GND

GND

GPO_0

+1.8V_VDD

DDC_SDA_VGA(2)

LVDS_O[0..9] (5)

BRIGHTNESS(6)

RX2-(2)

LVDS_O9

LVDS_E5

UART_PIN_SEL

3.3V_LAVDD

NVRAM_SDA

C333

0.1uF/16V

Close to respective power Pins

DDC_SCL_DVI(2)

C320

0.1uF/16V

C331

0.1uF/16V

RED+(2)

C321

0.1uF/16V

3.3V_DDC

UDART_DI

C312

0.1uF/16V

3.3V_DVDD

LVDS_E4

C311

0.1uF/16V

UART on DDC

3.3V_DVDD

LVDS_O8

NVRAM_SCL

C322

0.1uF/16V

VS(2)

GND

HS(2)

ROM_WP#

+3.3V_VDD

LBADC1 (4)

R

3

0

4

N

C

Move ROM_WP# function to GPIO12

LVDS_O7

L306120 OHM

3.3V_PVDD

6/14 Modified

LVDS_E3

C303

0.1uF/16V

1.8V_DVDD

GND

3.3V_AVDD

GREEN-(2)

L305120 OHM

Close to respective power Pins

PBIAS

UART on GPO

/WP

U302

G691L400T73

3

2

1

VCC

RSTN

GND

0522 ESD SOLUTION

3.3V_DVDD

LVDS_E0

+5V

GNDR329

NC

L303120 OHM

R310 100 1/16W

1.8V_AVDD

DDC_SCL_VGA(2)

+C32522uF

3

RX0+(2) LVDS_O6

3.3V_AVDD

RED-(2)

Open

Open

R

4

3

0

4

.

7

K

1

/

1

6

W

U401

GM 5621

56

49

50

3334

36373839

35

29

40

62

60

27

45

41

96

42

119

100

61

12

109

8

543

24

67

9493

52

127

125124123

46

4443

51

28

323130

13141516

8

5

19202122

11

23

99

59

97

1

0

3

1

0

4

105

1

0

6

108

109

1

1

0

111

8990

6564

121120

122

126

1

2

8

57

58

63

6667

69

7273757680818384

1

0

7

112113114115

12

6

4

8

1

7

5

5

1

1

8

8

7

9

5

9

8

1

0

2

9

1

1

1

6

5

3

1

0

1

9

2

8

2

7

4

2 2

5

4

7

6

8

7

1

7

7

7

9

8

6

7

8

7

0

1

8

5

4

8

8

1

1

7

GPO_1

PBIAS

PWM0 / GP0_4

O_CLK_PO_CLK_N

O_CH2_NO_CH1_PO_CH1_NO_CH0_P

O_CH2_P

RESERVED

O_CH0_N

SPI_DO

SPI_CLK

RESERVED

RESERVED

RESERVED

GREEN+

RESERVED

PWM1 / GPO_5

RED-

SPI_DI

E_CH2_N

E_CLK_NE_CLK_P

E_CH3_N

RESERVEDRESERVEDRESERVED

RESERVED

RESERVEDE_CH3_P

BLUE-BLUE+

CRVSS

PPWR

GPIO_13GPIO_12GPIO_11

RESERVED

RESERVEDRESERVED

GPO_0

RESERVED

O_CH3_NO_CH3_P

RESERVED

E_CH1_PE_CH1_NE_CH0_PE_CH0_N

A

V

S

S

_

D

V

I

RESERVEDRESERVEDRESERVEDRESERVED

E_CH2_P

RESERVED

RED+

SPI_CSn

GREEN-

A

V

S

S

_

A

D

C

A

V

D

D

_

A

D

C

_

1

8

VBUFC_RPLL

V

D

D

_

R

P

L

L

_

1

8

XTAL

TCLK

A

V

D

D

_

R

P

L

L

_

3

3

RESETn

HSYNCVSYNC

DDC_SDA_VGADDC_SCL_VGA

GPIO_9GPIO_8

GPIO_10

GPIO_14

A

V

D

D

_

B

I

A

S

_

3

3

GPO_2

GPO_3

RVDD_33

HOST_SCLHOST_SDA

REXT

RX2+RX2-RX1+RX1-RX0+RX0-RXC+RXC-

V

S

S

_

R

P

L

L

LBADC_VSSLBADC_IN3LBADC_IN2LBADC_IN1

A

V

S

S

_

B

I

A

S

V

S

S

_

O

U

T

V

S

S

_

O

U

T

C

V

D

D

_

1

8

C

V

D

D

_

1

8

C

V

D

D

_

1

8

C

V

D

D

_

1

8

A

V

S

S

_

A

D

C

A

V

S

S

_

A

D

C

A

V

S

S

_

A

D

C

R

V

D

D

_

3

3

L

B

A

D

C

_

V

D

D

_

3

3

R

V

D

D

_

3

3

A

V

D

D

_

A

D

C

_

3

3

A

V

D

D

_

A

D

C

_

3

3

A

V

D

D

_

D

V

I

_

3

3

A

V

D

D

_

D

V

I

_

3

3

V

D

D

_

O

U

T

_

3

3

V

D

D

_

O

U

T

_

3

3

V

D

D

_

O

U

T

_

3

3

A

V

S

S

_

D

V

I

A

V

S

S

_

D

V

I

A

V

S

S

_

D

V

I

A

V

S

S

_

D

V

I

A

V

D

D

_

D

V

I

_

1

8

A

V

D

D

_

D

V

I

_

1

8

A

V

D

D

_

D

V

I

_

1

8

C

R

V

S

S

C

R

V

S

S

C

R

V

S

S

C

R

V

S

S

CN301

CONN

123

3.3V_PVDD

3.3V_AVDD

GND

RX1-(2)

LVDS_E9

C317

0.1uF/16V

LVDS_O1

+ C30922uF

R30110 1/16W

1

GND

DDC_SDA_DVI(2)

R308

4.7K 1/16W

Boot-Strap Configuration:

LVDS_E2

C3320.1uF/16V

E

gm5621Custom


Dell 1907FPcTitle


Date: Sheet of

L302120 OHM

C313

0.1uF/16V

3.3V_LAVDD

BLUE-(2)

3.3V_DVDD

C329NC

LED_G (4)

LVDS_O5

Open

8/16 Modified

Audio cut-off(4)

ROM_WP#

GND

GND

USB Switch(4)

PBIAS (6)

Standard SPI ROM

GND

R32210K 1/16W

Open

GND

R317

4

.

7

K

1

/

1

6

W

(PWM0)

GND

R321NC

3.3V_DVDD

L304120 OHM

GND

3.3V_DVDD

RESETn

ZD301

UDZS5.6B

R307

4.7K 1/16W

+C31922uF

R

3

0

5

4

.

7

K

1

/

1

6

W

RXC-(2)

/WP

UDART_DO

R

3

1

5

4

.

7

K

1

/

1

6

W

GND

ATMELSPI ROM

RX1+(2)

3.3V_DDC

R318

4.7K 1/16W

GND

LVDS_E1

Standard SPI ROM

1.8V_AVDD

R309 100 1/16W

GND

Name

Audio Detect(4)

PPWR (6)

C328 33pF

POWER_ON (4)

U402

SST25VF010-20-4C-SA

1234 5

678

CE#SOWP#VSS SI

SCKHOLD#

VDD

C308

0.1uF/16V

3.3V_PVDD

GND

RESETn

(SPI_CSn)

DVI_EDID_WP(2)

C307

0.1uF/16V

R306

4.7K 1/16W

Ext. ROM JTAG Off

NVRAM_SDA

C314

0.1uF/16V

C326

0.1uF/16V

6/14 Modified

www.ma163.com ???????

Dell 1907FPc

33

GND

SPKR_R+

LBADC1(3)

CN403CONN

12345678

SPKR_R+

Q402NC

3

2

1

GND

LED_GREEN

R427

NC

R408

100 1/16W

CN402

CON16A

1 23 45 67 89 10

11 1213 1415 16

KEY_LEFT

LINE-IN-R

GND

KEY_RIGHT

+5V

LINE-IN-L

R428

0 1/16W

KEY_LEFT

LED_ORANGE

GND

+3.3V_VDD

R401NC

+5V+12V

R403 NC

R421 22K 1/16W

R406

NC

R425 NC

R405

NC

+3.3V_VDD

GND

CN401

CONN

2468101214

13579

1113

C408

0.1uF/16V

Q403

P

M

B

S

3

9

0

4

3

2

1

C410NC

GND

GND

R402NC

C4031000pF

KEY_ONOFF

GND

C401

0.1uF/16V

+5V

R431

4.7K 1/16W

R409 47K 1/16W

6/10 Added

SPKR_L+

R422 30K 1/16WLBADC2(3)

R426 NC

Audio Detect(3)

R420 22K 1/16W

C405

1000pF

LED_G

KEY_MENUR413 220 1/16W

KEY_AUTO

KEY_ONOFF

Audio-Det

6/10 Added

Audio cut

LED_O (3)

GND

GND

R418

10K 1/16W

D401NC

3

1

2

R41047K 1/16W

R414 220 1/16W

Audio-Det+

R419 30K 1/16W

SPKR_L+

R424 4.7K 1/16W

GND

R415 220 1/16W

GND

LINE-IN-R

POWER_ON(3)

9/21 modified

Q404PMBS3904

3

2

1

C406

1000pF

R407100 1/16W

Audio cut-off (3)

LINE-IN-L

KEY_MENUKEY_RIGHT

R412 220 1/16W

R417

10K 1/16W

MUTE

+3.3V_VDD

R429

0 1/16WC407

1000pF

E

KEYPADA


Dell 1907FPcTitle


Date: Sheet of

Audio cut+

+3.3V_VDD

USB Switch(3)

LED_O

Q401NC

3

2

1

6/10 Added

C404

1000pF

LED_G(3)

KEY_AUTO

C409NC

C402

NC

R411 220 1/16W

GND

R416

10K 1/16W

Audio-Det

www.ma163.com ???????

Dell 1907FPc

34

LVDS_O9

LVDS_O2

LVDS_E3

LVDS_E9

LVDS_E1

LVDS_E0

LVDS_O7

CN501

33G8043-24-H

24681012141618202224

13579

11131517192123

LVDS_O[0..9](3)

RXO3-

LVDS_O0

LVDS_E9

LVDS_E2

1

5

.

4

m

A

GND

+C50122uF/50V

+VLCD

LVDS_O2

RXEC+

RXOC+

LVDS_E5

E

PANEL INTERFACEA


Dell 1907FPcTitle


Date: Sheet of

LVDS_O4

RXE1+

GND

RXO0+

C503

NC

RXO2-RXO1-

LVDS_E7

RXO1+

LVDS_E0

RXE3+

RXE2-

RXO2+

RXE3-

LVDS_O5

LVDS_O8

LVDS_E5

LVDS_O3

RXO3+

LVDS_O8

LVDS_O6

C502

0.1uF/16V

LVDS_O1

GND

LVDS_O9

LVDS_E4

RXE0+

LVDS_E6

RXEC-

LVDS_E8

LVDS_E4RXE1-

LVDS_O7

LVDS_O1

LVDS_O3

LVDS_E[0..9](3)

LVDS_E3

RXO0-

RXE2+

RXOC-

LVDS_E1

LVDS_O4 LVDS_E6 LVDS_E7

LVDS_O6LVDS_O0

R501

4.7K 1/16W

LVDS_E8

RXE0-

LVDS_E2

LVDS_O5

www.ma163.com ???????

Dell 1907FPc

35

GND

Q602

AO34011

3

2Q603

PMBS3904

3

2

1

GND

C618

0.22uF

BRIGHTNESS(3)

R609

47K 1/16W

C603

0

.

1

u

F

/

1

6

V

D601NC

Q601PMBS3904

3

2

1+1.8V_VDD

C608

0.1uF/16V

+5V

GND

VCC12V

GND

GND

R615NC

GND

R611NC

+C61022uF/50V

C613

0.1uF/16V

R602

1K 1/16W

GND

CN601

CON402(PITCH 2.00)

1357911

2468

1012

GND

+3.3V_VDD

+

C61522uF/50V

ON_OFF

R607NC

R605

47K 1/16W

142mA

+VLCD

R6140 1/16W

+5V

C614

0.1uF/16V

GND

C617

NC

GND

8/16 Modified

8/16 Modified

R612NC

D602NC

GND

C612

0.1uF/16V

GND

Audio cut+

GND

GND

+

C611220uF/25V

C616

NC

GND

1.435A

U602AZ1117D-1.8

123

A

D

J

/

G

N

D

O

U

T

P

U

T

I

N

P

U

T

R6014.7K 1/16W

+3.3V_VDD

+5V

GND

R604

1K 1/16W

R6130 1/16W

R616NC

GND R6031K 1/16W

C604

0

.

1

u

F

/

1

6

V

C607NC

U601

AIC1084-33M

3

1

2VIN

ADJ

VOUT

Audio-Det+

VCC5V

+C605NC

+12V

GND

+C601

220uF/25V

+5V

E

POWERA


Dell 1907FPcTitle


Date: Sheet of

+5V

R610NC

R6060 1/16W

+5V

VCC5V+ C602

220uF/25V

8/16 Modified+ C606

220uF/25V

204mAGND

+12V

Burst CTRL(3)

PBIAS (3)

R608

47K 1/16WPPWR(3)

+C609

22uF/50V

L307120 OHM

GND

GND

GND

www.ma163.com ???????

Dell 1907FPc

36

6.2 Power Board

C9010.001uF/250V

R92047 1/2W

R9251K 1/10W

+12V

D901UF4003PT

-+

BD?

D3SBA60

2

1

3

4

D900BA159GPT

IC902PC123FY2 4P

1

2

4

3

ZD922RLZ5.1B

1

2

+ C903120uF/450V

R903430K 1/8W

C9270.1uF /50V

R9243.6K 1/10W 1%

C900 0.47uF/250V

R91510K 1/10W

L901

L

14

23

C9210.001uF/500V

ZD920PTZ9.1B

1

2

C9041500pF/1KV

+ C925470uF/25V

C9370.1uF/50V

C9300.1uF /50V

Q900STP10NK70ZFP

R9131K 1/4W

D920FME-220B

1

2

3

+ C9241000uF/25V

R905430K 1/8W

C9380.1uF/50V

R907510K 1/8W

R9271K 1/10W

CN902

CONN

123456789101112

R91210 1/4W

C9310.1uF /50V

R9283.9K 1/4W

IC922

KA278R12CTU

1 234

Vin VoGNDVdis

R901330K 1/8W

+5V

C9200.001uF/500V

R904430K 1/8W

R91875K 1/10W

R92633K 1/10W 1%

R919100K 1/10W

R9314.7K 1/6W

R911100K 1/10W

DIM

+ C90622uF/50V

R9102.2 1/8W

+ C9231000uF/25V

R9301K 1/6W

R923NC

R9160.3 2W

+ C926470uF/25V

L922 L

R900330K 1/8W D922

MLL4148

LB901BEAD

L902

L

1 4

2 3

Q922KRC102M

1

2

3

C9340.022uF/25V

D923MLL4148

F9012A/250V

LD7552

IC901LD7552

1

3

4

7

2

5 6

8

C9020.001uF/250V

C9080.1uF/25V

tNR901NTCR

1

2

L921 L

C929NC

+5V

F902

0 1/8W

R917100 1/10W

R9292.4K 1/10W 1%

ZD921RLZ13B

1

2

R92147 1/2W

IC903KIA431A-AT/P

2

3

1

+12V

ON/OFF

R908510K 1/8W

C9360.1uF/50V

IC921KIA431A-AT/P

2

3

1

C9050.1uF /50V

C9320.0022uF/250V

R922220 1/4W

R914

10K 1/10W

D921FMW-2156

1

2

3

R909100K 2W

CN901

SOCKET

12

3

+ C9221000uF/25V

R902330K 1/8W

CN903

DC JACK

312

Q921KTC945P

+ C935470uF/25V

R906510K 1/8W

O

O

O

T901

310

1

4

5

8

6

7

9

C907220pF /50V

www.ma163.com ???????

Dell 1907FPc

37

R8348.2K 1/10W

R

8

1

8

1

5

/

0

8

0

5

C82512pF/3KV

R

8

1

5

1

0

0

K

/

0

8

0

5

R808

470K /1206

Q806AM9945

1 2 3 4

5678

S

1

N

G

1

N

S

2

P

G

2

P

D

2

P

D

2

P

D

1

N

D

1

N

ZD801RLZ5.6B

C818390P/50V

R8226.2M / 1/4W

R

8

3

0

1

6

K

0

8

0

5

R80410K / 0805

C

8

0

5

1

N

/

0

8

0

5

CN802

33G8021-2D-U

1

2

C801NC

C

8

0

3

1

0

N

/

5

0

V

R8278.2K 1/10W

R84210 / 0805

C

8

1

3

1

.

5

N

/

5

0

V

C

8

1

2

1

.

5

N

/

5

0

V

R809

1M / 0805

+C820

470uF/25V

C8175pF/3KV

R

8

1

9

1

5

/

0

8

0

5

C

8

0

8

6

.

8

N

/

5

0

V

R80722 / 0805

C

8

2

3

1

.

5

N

/

5

0

V

R840

NC_ /0805

R843

1K 0805

R825560 /0805

ON/OFF

R835

560 0805

R

8

1

0

1

0

0

K

/

0

8

0

5

C8265pF/3KV

CN803

33G8021-2D-U

1

2

R8010 1206

Q803PMBS3904 3

2

1

C827390P/50V

C814

NC/50V

+C811

470uF/25V

C

8

0

9

4

7

N

/

5

0

V

CN804

33G8021-2D-U

1

2

Q801PMBS3904

3

2

1

R

8

2

9

1

5

0

8

0

5

R838NC_ / 0805

R823 NC

C

8

0

7

1

0

N

/

5

0

V

CN801

33G8021-2D-U

1

2

C

8

1

0

4

7

0

P

/

5

0

V

R8361K /0805

D802BAV99

3

1

2

PT80280GL19T-8-DN5

3

7

4

1 8

R

8

4

1

1

.

5

K

C815NC/50V

C

8

2

2

1

.

5

N

/

5

0

V

C81612pF/3KV

D801BAV70

3

1 2

Q805AM9945

1 2 3 4

5678

S

1

N

G

1

N

S

2

P

G

2

P

D

2

P

D

2

P

D

1

N

D

1

N

IC801

OZ9938

12345678 9

10111213141516DRV1

VDDATIMERDIMISENVSENOVPTNC1 NC2

ENALCT

SSTCMPCT

GNDADRV2PGND

Q802PMBS3904

3

2

1

R

8

1

7

3

9

K

/

0

8

0

5

R

8

1

6

1

.

5

M

/

0

8

0

5

R821100K/ 0805

C

8

0

6

1

u

F

/

5

0

V

VCC

R806NC

C

8

1

9

4

7

N

2

%

D804

BAV99

3

1

2

R

8

2

6

2

2

0

/

1

%

+5V

PT80180GL19T-8-DN5

3

7

4

1 8

R

8

1

2

1

0

K

0

8

0

5

R802300K / 0805

R82015K /0805

R805

470 /0805

R

8

2

8

1

5

0

8

0

5

R80310K / 0805

R83710 /0805

R839

NC_ /0805

R

8

3

3

N

C

C

8

0

4

2

.

2

u

F

/

5

0

V

D803BAV70

3

1 2

DIM

R

8

1

4

6

3

K

/

0

8

0

5

R831100K 0805

R8326.2M / 1/4W

+12V

R

8

1

3

1

M

0

8

0

5

R

8

1

1

1

5

0

K

/

0

8

0

5

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Dell 1907FPc

38

6.3 USB Board

VCC3.3V

C7440.1uF/16V

Z

D

7

0

6

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

/OC1

DM1

To scalar GPO-2 #57

Z

D

7

0

3

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

C7180.01uF

+

C

7

4

2

2

2

0

u

F

/

1

6

V

R724NC

DP1

/OC1

Z

D

7

0

8

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

R731NC

VCC3.3V

VCC3.3V

R718

NC

R

7

5

3

1

2

K

1

/

1

6

W

Z

D

7

0

2

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

/OC1

USB Switch

U704AIC1526-0CS

1

2

3

4 5

6

7

8CTLA

FLGA

FLGB

CTLB OUTB

GND

IN

OUTA

VBUS1A

R738NC

C704 22pF

/OC2 8/18

VCC3.3V

C7130.01uF

USB5V

FB702

120 OHM1 2

C7100.01uF

C7450.1uF/16V

R708

1

M

1

/

1

6

W

/OC3

VBUS2A

R737NC

DM0

123

4

CN703

CONNNECTOR

1234

6

5

DM1

DP2

/OC4

USB5V

FB706

600 OHM1 2

R71315K 1/16W

USB5V

PRTPWR3

VBUS2A

R749220 1/16W

VBUS4A

tF702

5V 0.75A

1

2

C703 22pF

C714closeto1.8V

VBUS3

R747220 1/16W

Z

D

7

0

9

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

Z

D

7

1

0

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

/OC2

R

7

5

4

2

.

2

K

1

/

1

6

W

U703

3 2

1

VI VO

G

N

D

VCC3.3V

/OC2

8/31

tF704

5V 0.75A1

2

VBUS0

DM2

8/18

DP1

Z

D

7

0

4

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

/OC4

C7430.1uF/16V

DP2

1 2 3 4

5 6 7 8

CN704CONNNECTOR

1 2 3 4

65 7 8

11

12

9

10

VBUS1

R

7

5

1

N

C

+ C705100uF/16V

VBUS4A

PRTPWR2

R71010K 1/16W

L705 L 4

1

3

2

C

7

3

8

N

C

USB5V

VBUS4

/OC4

tF701

5V 0.75A

1

2

C7220.1uF/16V

VCC3.3V

DP1

DP4

R70410K 1/16W

FB708

120 OHM

1

2

C7090.01uF

SCL

R732 NC

SDA

DM4

C7170.01uF

C7190.1uF/16V

FB707

120 OHM1 2

8/18

C7270.1uF/16V

FB705

600 OHM

1 2

U702AP1510

1

2

3

4 5

6

7

8FB

EN

OCSET

VCC Output

Output

VSS

VSS

R71515K 1/16W

DM3

R70710K 1/16W

USB5V

DP3

L706

L

4

1

3

2

+ C708100uF/16V

VCC3.3V

PRTPWR1

R745

470 1/16W

C

7

3

7

N

C

USB5V

PRTPWR1R726NC

/OC3

8/30

VBUS4

CN701

CON5

12345

DM4

power port

U701

C7310.01uF

FB701

120 OHM1 2

C7330.1uF/16V

C7204.7uF/6.3V

+12V

VBUS1A

R71610K 1/16W

L701

30uH

R735NC

DM3

DM2

CN702

CONN

246810

13579

DP0

R739 NC

DP3

8/18

C7290.1uF/16V

R734NC

C712 close to1.8V

DP4

L702

L

4

1

3

2

R705390 1/16W

DM0

C732nc

R

7

5

0

3

.

6

K

1

/

1

6

W

UGND

SDA

R70911.3K 1/16W

C7300.1uF/16V

R730NC

VBUS2

DP0

C7360.1uF/16V

L703

L

1

4

2

3

U706

M24C02WMN6

4

8123

765

GND

VCCA0A1A2

WPSCLSDA

VBUS3AC7124.7uF/6.3V

R736NC

R746220 1/16W

L704

L

4

1

3

2

SCL

R71410K 1/16W

X70124MHz

1

2

8/18

PRTPWR2

C7230.1uF/16V

R709 close topin 63

VBUS1

C7010.1uF/16V

R70610K 1/16W

+ C706100uF/16V

+ C72810uF/16V

R702100K 1/16W

Z

D

7

0

5

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

VCC3.3V

FB704

120 OHM1 2

ZD707

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

U705AIC1526-0CS

1

2

3

4 5

6

7

8CTLA

FLGA

FLGB

CTLB OUTB

GND

IN

OUTA

R701100K 1/16W

DP0

tF703

5V 0.75A

1

2

C7150.1uF/16V

C7240.1uF/16V

D701SR54

R740

0

1

/

1

6

W

USB5V

R

7

5

2

N

C

R722NC

R733NC

DP2

DM2

C

7

3

5

N

C

USB5V

C7160.01uF

DM4

R75510K 1/16W

C7110.01uF

VBUS0

PRTPWR4

R71715K 1/16W

DP4

8/18

VBUS2

C7410.1uF/16V

+

C

7

2

5

2

2

0

u

F

/

1

6

V

DM0

VBUS3A

+ C73447uF/16V

Z

D

7

0

1

E

G

A

1

0

6

0

3

V

0

5

A

1

-

B

1

2

R741

0

1

/

1

6

W

VBUS3

USB Switch

C702

0

.

1

u

F

/

1

6

V

R71115K 1/16W

R720NC

C7210.1uF/16V

DM1

DP3

+ C707100uF/16V

R71210K 1/16W

R744

NC

C

7

3

9

N

C

U701

+12V

C

7

4

0

N

C

Upstream

Downstream 1

Downstream 2

Downstream 3

Downstream 4

EEPROM

Common

U701USB2504

2

3

6

8

12

14

5

9

11

15

52

45

43

39

37

27

25

22

20

26

24

21

19

46

44

40

38

63

3435

3650

58

57

49

51

31

32

42

48

7

64

59

60

41

47

5355

56

23

29

62

16104

13

1

54

61

28

30

33

1718

USBDP0

USBDN0

USBDP1

USBDP2

USBDP3

USBDP4

USBDN1

USBDN2

USBDN3

USBDN4

VBUS_DET

PRTPWR1

PRTPWR2

PRTPWR3

PRTPWR4

GR1/NON_REM0

GR2/NON_REM1

GR3/PRT_DIS0

GR4/PRT_DIS1

AM1/GANG_EN

AM2/MTT_DIS

AM3

AM4/LED_EN

OCS1_N

OCS2_N

OCS3_N

OCS4_N

RBIAS

SDA/SMBDATASCL/SMBCLK

CFG_SEL0CFG_SEL1

XTAL1/CLKIN

XTAL2

RESET_N

SELF_PWR

TEST0

NC3

VDD18

TEST1

VDDA

VSS

CFG_SEL2

VDDA18PLL

VSS

CLKIN_EN

VSSVSS

NC5

PRTPWR_POL

VSS

ATEST/REG_EN

VSSVSSVSS

VDDA

VDDA

VDD18

VDDA33PLL

VDD33

VDD18

NC4

NC1NC2

/OC3

PRTPWR4

R742

N

C

DM3

VCC3.3V

PRTPWR3

C7144.7uF/6.3V

R703

1

0

0

K

1

/

1

6

W

FB703

120 OHM1 2

R743

NC

To connect upstream port VCC

www.ma163.com ???????

Dell 1907FPc

39

12

34

CN705CONNNECTOR

1234

6

5

CN707

CONN

12345678910

12

34

CN706CONNNECTOR

1234

6

5

715G1665-A-2

A

1 1Wednesday, October 19, 2005

Title


Date: Sheet of

C732

0.1uF/16V

C733

0.1uF/16V

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Dell 1907FPc

40

7. PCB Layout 7.1 Main Board

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Dell 1907FPc

41

7.2 Inverter/Power Board

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Dell 1907FPc

42

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Dell 1907FPc

43

7.3 USB Board

715G1666 E 715G1665 A 2 7.4 Key Board

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Dell 1907FPc

44

8. Mechanical Instruction Tools: 2 Power screwdrivers (=5mm,L=60mm); 1 small cross screwdriver; turnbuckle driver; Setting: Power screwdriver torque A=11 kgF. Cm; torque B=6 kgF. Cm Note: Firstly, put the monitor on a soft, flat and clean surface, wear gloves.

Fig Remark

Remove stand :

1. Rotate the stand to allow

access to the stand release

button.

2. Press the Stand release button

and lift up the Stand and away

from the monitor.

1. Remove the 4 screws by

torque A

2. Pry the monitor up then find

out the hooks position, use the

tool (like the picture or other

card) to insert into the gap of

bezel and rear cover.

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Dell 1907FPc

45

3. Take off the bezel

Remove rear cover :

Turn over the monitor as the Fig,

hold the rear cover, and then

slightly remove it.

Remove the shield :


Torque B

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Dell 1907FPc

46

2. Remove the USB2 board

cover by Torque B or by

manual


Torque B or by manual

4. Disconnect the wire harness

between USB1 and USB2

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Dell 1907FPc

47

5. Push the main shield as

the arrowhead direction

Disconnect the connector pin:

Disconnect the connector pin

between key and main boards

Install:

Lay the KEPC cable as the figure

showed

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Dell 1907FPc

48

Remove USB and main board :


Torque B

2. Disconnect the connector wire

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Dell 1907FPc

49

3. Disconnect the wire harness

between main board and panel

Note: Make LVDS connectors

metal side adown for

SAMSUNG panel and

upturned for other panel.

Install:

Fix the LVDS cable by black tape

and cable hook

Cable hook

Black tape

EVA washers

Magnetism ring

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Dell 1907FPc

50

4. Disconnect the wire holder

Install:

Lay the cables as the line

direction

Remove the power board :

Remove the 5 screws by Torque

B

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Dell 1907FPc

51

Disconnect wire harness :

Disconnect the wire harness

between power board and lamps

Fix the CCFL connector by black

tapes as the figure

Remove USB board :

Remove the 2 screws by Torque

B

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Dell 1907FPc

52

Remove the main frame :

Remove the 4 screws (left and

right) by manual or torque =

3kgF.Cm

Samsung panel:

The CCFL line cant overtop

dashed

LG panel:

The angle between CCFL line

and vertical direction should be

about 30 degree.

Cable hook Cable hook

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Dell 1907FPc

53

9. Maintainability 9.1 Equipments and Tools Requirement

1. Voltage meter

2. Oscilloscope

3. Pattern Generator

4. LCD Color Analyzer

5. Service Manual

6. User Manual

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Dell 1907FPc

54

9.2 Trouble shooting 9.2.1 Main Board

Note: 1. If replace Main-Board, Please re-do DDC-content programmed & White-Balance.

2. If replace Power Board only, Please re-do White-Balance. No power

No power

Press power key and look if the

picture is normal

Please reinsert and make sure the

AC of 100-240 is normal

Reinsert or check the power section

X301 oscillate waveforms are normal

Measure CN601 PIN5/6=12V? Measure CN601 PIN9/10=5V?

OK

OK

NG

NG

NG Check power section

Replace U401

Replace X301 OK NG

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Dell 1907FPc

55

No picture (LED is orange)

No picture

OK

OK

NG

NG

Measure U601 PIN2=3.3V

U602 PIN2=1.8V

Replace U601, U602

X301 oscillate waveforms are

normal

Replace X301

Check if the sync signal from

computer is output and video cable

is connected normally

Input the sync signal of

computer, or change the

cable

Replace U401

NG

OK

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Dell 1907FPc

56

White screen

White screen

Measure Q603 base

is high level?

X301 oscillate waveform is normal

Check Q602, Q603 is broken

or CN501 solder?

Check Correspondent component.

Replace PANEL

Check Correspondent component.

Replace U401

OK

OK

OK Replace X301

OK

NG

NG

NG

NG

Check reset circuit of

U401 is normal

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Dell 1907FPc

57

9.2.2 Inverter/Power Board No Power

Check AC line volt 110V or 220V

OK Check AC line

Check the voltage of C903(+)

Check F901, bridge rectified circuit

Check start voltage for the pin3 of IC901

Check R903, R04, R905

IC921,IC902

Check the auxiliary voltage is between 10V-17V

Check T901, D901

OK

Check D920, D921, ZD920 Circuit

OK

NG

No power

NG

NG

OK

NG

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Dell 1907FPc

58

No Backlight

Check C811=12V

Check ON/OFF signal

Check IC801 PIN2=5V+-0.25V

Check IC801 PIN10=5V

Check adapter

Check Interface board NG

Check Q801,Q802,Q813,ZD801 circuit

NG

NG

Check IC801 PIN13 triangular wave

is normal

Check Q801,Q802,Q813,ZD801 circuit

Check R817,C810,IC801

Check Q805, Q806, PT801, PT802

NG

NGOK

OK

OK

OK

OK

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Dell 1907FPc

59

9.2.3 Key Board

OK

OK

OSD is unstable or not working

Is Keypad board connecting normally?

Is Button Switch normally?

Is Keypad board normally?

Check main board

Connect Keypad Board

Replace Button Switch

Replace Keypad Board

OK

NG

NG

NG

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Dell 1907FPc

60

10. White balance, Luminance adjustment Approximately 30 minutes should be allowed for warm up before proceeding White-Balance adjustment. Before started adjust white balance, please setting the Chroma-7120 MEM. Channel 3 to 65000K colors, MEM.

Channel 4 to 93000K colors, MEM. Channel 9 to 57000K (our 9300 parameter is x=28328, y=29728, Y = 200

20 cd/m2, 6500 parameter is x =31328, y=32928, Y = 230 20 cd/m2, and 5700 parameter is x = 328 28, y =

344 28, Y = 230 20 cd/m2)

How to setting MEM.channel you can reference to chroma 7120 user guide or simple use SC key and NEXT

key to modify x, y, Y value and use ID key to modify the TEXT description Following is the procedure to do

white-balance adjust.

Enter into factory mode:

Press MENU and up button at the same time, during press power button on will activate the factory mode, then press MENU again, main MENU will be in the middle of the screen.

Gain adjustment:

Move to Factory Reset and press MENU key to enter this sub-menu.

Move to Factory and press MENU key.

Move to Auto Color and press MENU key to adjust Gain and Offset automatically;

a. Adjust sRGB (65000K) color-temperature

1. Switch the chroma-7120 to RGB-mode (with press MODE button)

2. Switch the MEM.channel to Channel 3 (with up or down arrow on chroma 7120)

3. The LCD-indicator on chroma 7120 will show x =31328, y=32928, Y = 230 20 cd/m2

4. Adjust the RED on OSD window until chroma 7120 indicator reached the value R=100

5. Adjust the GREEN on OSD, until chroma 7120 indicator reached G=100

6. Adjust the BLUE on OSD, until chroma 7120 indicator reached B=100

7. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =1002

b. Adjust Color1 (93000K) color-temperature



10. The LCD-indicator on chroma 7120 will show x=28328, y=29728, Y = 200 20 cd/m2





c. Adjust Color2 (57000K) color-temperature



17. The LCD-indicator on chroma 7120 will show x = 328 28, y = 344 28, Y = 230 20 cd/m2

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22. Move cursor to Exit/Save sub-menu and press MENU key to save adjust value and exit.

Turn the POWER-button off to on to quit from factory mode.

Max Brightness measurement:

a. Switch to the full white pattern, in user mode main menu: 1. Set Red, Green, and Blue to the max. 2. Set Brightness, Contrast to the max.

b. The Minimum brightness is 200cd/m2 20.

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11. EDID Content Analog EDID

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

0: 00 FF FF FF FF FF FF 00 10 AC 14 40 30 39 38 37

16: 25 0F 01 03 68 26 1E 78 2E EE A5 A3 54 4C 99 26

32: 14 50 54 A5 4B 00 71 4F 81 80 01 01 01 01 01 01

48: 01 01 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70

64: 13 00 78 2D 11 00 00 1E 00 00 00 FF 00 39 30 31

80: 32 33 36 35 34 37 38 39 30 0A 00 00 00 FC 00 44

96: 45 4C 4C 20 31 39 30 37 46 50 0A 20 00 00 00 FD

112: 00 38 4C 1F 53 0E 00 0A 20 20 20 20 20 20 00 3E

Digital EDID

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

0: 00 FF FF FF FF FF FF 00 10 AC 15 40 30 39 37 38

16: 25 0F 01 03 80 26 1E 78 2E EE A5 A3 54 4C 99 26

32: 14 50 54 A5 4B 00 71 4F 81 80 01 01 01 01 01 01

48: 01 01 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70

64: 13 00 78 2D 11 00 00 1E 00 00 00 FF 00 37 30 31

80: 32 33 36 35 34 38 37 39 30 0A 00 00 00 FC 00 44

96: 45 4C 4C 20 31 39 30 37 46 50 0A 20 00 00 00 FD

112: 00 38 4C 1F 53 0E 00 0A 20 20 20 20 20 20 00 27

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12. ISP Instruction 12.1 Software requirement and connection

Operating system requirement (1) Microsoft windows OS. (2) 100M free hard-drive space. (3) 1 free parallel port for DDC2BI communication.

The hardware Connection

Note: VGA and DVI must not connect at the same time.

The relevant soft List

ISP_CODE

Connect to PC LPT

12V Input

Link to Dell

VGA connector

Link to Dell

DVI connector

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12.2 Install the software (Gprobe 5.0) for ISP Writer

A. Double-click the Install software

Select the folder where you would like Genesis Gprobe 5 to be installed

Completing the Genesis Gprobe 5 setup wizard

Note: After finishing the installation, you must restart the PC.

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B. Next, install the Update software

Completing the update 1 for Genesis Gprobe 5.0 setup wizard

C. Copy the to C: program files GProbe5.0.0.15 Genesis Microchip GProbe 5

ChipDB folder, Installation Finished.

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12.3 Run program

After the installation, a short-cut icon will appear on your desktop, double click it will run the

program.

(1). Select the IC type (NOTE: If there is not this selection, please check the ChipDB):

Note: Firstly, you can check the IC normal or not by inputting the test in the position ,

where to load MCU software. Click , if you can see test pass in the blank, the IC is OK!

(2). Select Options Connection Setup F10:

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Set the Connection Settings Connection Device to Parallel, click OK!

(3). Select Commands Batch:

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Click to select MCU software in Dell ISP_CODE, please per as the follow fig

Click open.

(4). Unplug the Dell AC power, until the LED indicator is off, press Enter or Execute button, when the .txt of MCU is

in gray, for example , re-plug Dell AC power, Writer is in progress.

(5). When appear the Execution time35.55ssBatch Command Successful, Writer is complete!

The text must be matching

with the panel type of the

monitor, such as if the panel

you use is LPL 19 .you

have choose the

spi_flash_isp_V14a_Dell_L

19TLB2 (.txt) or

spi_flash_isp_V14a_Dell_L

19TLB4 (.txt)

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13. Check List 1) After replacing LCD Main board and panel, Check if white-balance is within the specs, then

re-writing DDC is necessary. The white-balance value for each common color temperature:

9300 parameter is x=28328, y=29728, Y = 180 10 cd/m2,

6500 parameter is x =31328, y=32928, Y = 180 10 cd/m2,

5700 parameter is x = 328 28, y = 344 28, Y = 180 10 cd/m2)

The color temperature value above must be up to the situation of x

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7. Select Exit to the upper menu after completing the adjustment. Then press POWER OFF to exit and save it.

3) Steps for writing DDC 1. Employ PC, and connect the DDC-writing instrument and the instrument that is ready for writing into DDC to

the power of 12V. Connect the signal cable of the latter to D-USB or DVI of DDC-writing instrument (The

data-writing of monitor needs transfer-interface) and link the DDC-writing instrument with PC through printer

interface. (See the schematic picture below)

(Connection for VGA) (Connection for DVI)

2. Seek the document with the expanded name of .BAT in DDC file of this model. It appears the indication of

Input Serial No.after dual-click the document to be ready for DDC-writing.

3. Input the serial number of the product (For instance: AOC LM725 is 13 bits), and then press ENTER to start

writing

4. Check the indication of DDC-writing program at the end. When you see the picture as the schematic picture

above, theData compare OK! Means being written well and thats the end. Please check if the

Manufacturer Name, Vendor Assigned Code, Monitor Name, Serial Number, Week of Manufacture, Year of

Manufacture are right. It will appear Data compare error! To indicate failure if the DDC-writing doesnt

perform well. Please check the power resource and the connection of the signal cable, then return to step 3

by pressing ENTER and re-do it.

5. You can exit the program by pressing Ctrl plus C, and then cut the signal cable and the power.

6. The following picture is taking AOC LM725 EDID for example.

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Documents

Dell 1907FPc Service Manual.pdf