Hitachi Cml200uxw Sm

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CAUTION:Before servicing this chassis, it is important that the service technician read the SafetyPrecautions and Product Safety Notices in this service manual.

ATTENTION:Avant deffectuer lentretien du chassis, le technicien doit lire les Prcautions de scuritet les Notices de scurit du produit prsents dans le prsent manuel.

VORSICHT:Vor ffnen des Gehuses hat der Service-Ingenieur die Sicherheitshinweise und Hinweisezur Produktsicherheit in diesem Wartungshandbuch zu lesen.

SERVICE MANUAL

MANUEL D'ENTRETIEN

WARTUNGSHANDBUCH

Data contained within this Service

manual is subject to alteration forimprovement.

Les donnes fournies dans le prsentmanuel dentretien peuvent faire lobjetde modifications en vue de perfectionnerle produit.

Die in diesem Wartungshandbuchenthaltenen Spezifikationen knnen sichzwecks Verbesserungen ndern.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

LCD MONITOR

July 2002

No. 0534

CML200UXW


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Hitachi CML200UXW B LCD Monitor Service Manual (TEMP-1)

2

TABLEOFCONTENTS

1. Precaution and Notices . 3

1.1 Safety Precaution .. 3

1.2 Product Safety Notice 3

1.3 Service Notes . 3

2. Specifications .... 4

2.1 Monitor Specifications ... 5

2.2 Timing Supported Analog Inputs ... 5

2.2 Timing Supported Digital Inputs .... 6

3. Adjusting Your Display............ 7

4. Disassembly Instructions .. 8

5. General Connection and Applications .. 11

5.1 Connecting the Monitor to the Computer .. 11

6. Electronic Circuit Description .. 13

7. Electronic Block Diagram . 14

8. Troubleshooting Flow Chart. 15

Appendix A. PCB Circuit

Appendix B. PCB Layout

Appendix C. PartsLists

Appendix D. Mechanical Disassembly


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1. Precautions and Notices1.1 Safety Precautions

Although LCD monitors are displays without high voltage as that in the CRTs, the

following precautions still should be take care of.

1)Observe all cautions and safety related notes located inside the display cabinet and onthe display chassis.

2)Operation of these displays outside the cabinet or with the cover removed involves ashock hazard from the display backlights inverter. Work on the display should not be

attempted by anyone who is not thoroughly familiar with precautions necessary when

working on high voltage equipment.

3)Before returning a serviced display to the customer, a thorough safety test must beperformed to verify that the display is safe to operate without danger or shock.

1.2 Product Safety Notice1)Many electrical and mechanical parts in this chassis provide special visual safety

protection. The protection afforded by them cannot necessarily be obtained by using

replacement components rated for higher voltage, wattage, etc.

2)Before replacing any of these components, read the parts list manual carefully. The useof substitute replacement parts, which do not have the same safety characteristics, as

specified in the parts list may create shock, fire or other hazards.

1.3 Service Notes1)When replacing parts or circuit boards, wrap the wires around terminals before

soldering.

2)Keep wires away from high temperature components.3)Keep cable and their shielding in their original position so as to reduce interference.


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2. Specifications2.1 Monitor Specification

LCD Module 20.1-in, active matrix TFT, anti-glare coating, 0.255 mm pixel pitch

Display Size 408 mm x 306 mm

Viewing Angle

Left/Right

Up/Down85/ 85(Typical)

85/85(Typical)

Luminance

Contrast Ratio

250 cd/m2(Typical)

500 : 1 (Typical)

Display Colors 16.7 million

Power Input 100 ~ 240 VACFull Range, 50/60 Hz (External AC adapter)

Maximum power

consumption< 70W

Signal Input

Video Signal

Sync signals

Analog:RGB positive 0.7VPP, 75ohm

Separate & Composite, TTL Level

Digital:TMDS 0.3Vp-p differential

Line (horizontal)

frequency

Analog:31.5 kHz ~ 80 kHz / Digital :31.5kHz ~ 75kHz

Raster (vertical)

frequencyAnalog:56 Hz ~ 75 Hz / Digital :60Hz~75Hz

Pixel dot clock 162 MHz (maximum)

Recommended mode 1600 x 1200 @ 60 Hz

Pedestal tilt 15forward, -5backward

Pedestal swivel 45right ,45left

Dimensions(W x H x D) 494 x 448 x 224 mm (without speaker)

Weight 11 kg

Operating Conditions

Temperature

Humidity

Altitude

5~ 40C at altitude 0 ~ 2000m

5~ 30C at altitude 2000 ~ 3000m

20% ~ 85% RH, non-condensing

3000m Max.

Storage Conditions

Temperature

Humidity

-20~ 60C

5% ~ 85% RH


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Altitude 10000m Max.

2.2 Analog InputsMode

No.

Mode Name

Resolution

H.Freq.(KHZ)

V.Freq.(HZ)

H. Polarity

V. Polarity

Pixel CLK

(MHZ)

1 VGA 60HZ

640*480

31.469

59.941

25.175

2 VGA 72HZ

640*480

37.804

72.81

31.5

3 VGA 75HZ

640*480

37.5

75.0

31.5

4 SVGA 56HZ

800*600

35.156

56.25

36.0

5 SVGA 60HZ

800*600

37.879

60.317

40.0

6 SVGA 72HZ

800*600

48.077

72.188

50.0

7 SVGA 75HZ

800*600

46.875

75.0

49.5

8 XGA 60HZ1024*768 48.36360.004

65.0

9 XGA 70HZ

1024*768

56.476

70.069

75.0

10 XGA 75HZ

1024*768

60.023

75.029

78.75

11 SXGA 60HZ

1280*1024

63.981

60.020

108

12 SXGA 75HZ

1280*1024

79.976

75.025

135

13 UXGA 60Hz

1600 * 1200

75.0

60

162

14 MAC SVGA

640*480

35.0

66.667

30.24

15 MAC SVGA

832*624

493725

74.550

57.283

16 US TEXT

720*400

31.469

70.087

28.322


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2.3 Digital Input:

Mode

No.

Mode Name

Resolution

H.Freq.(KHZ)

V.Freq.(HZ)

H. Polarity

V. Polarity

Pixel CLK

(MHZ)

1 VGA 60HZ

640*480

31.469

59.941

25.175

2 VGA 75HZ

640*480

37.5

75.0

31.5

3 SVGA 60HZ

800*600

37.879

60.317

40.0

4 SVGA 75HZ

800*600

46.875

75.0

49.5

5 XGA 60HZ

1024*768

48.363

60.004

65.0

6 SXGA 60HZ

1280*1024

63.981

60.020

108

7 US TEXT

720*400

31.469

70.087

28.322

8 UXGA 60Hz1600 * 1200 75.060

162

Note: The display is capable of going beyond these recommended modes.


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ENGLISH

3. Adjusting Your Display

This chapter contains information about how to changing display settings for your LCDMonitor. It is designed with an OSD menu to help you easily adjust to its optimumperformance.

Note:You mu st perform auto setup before making any adjustment .

Summary of Contro l But tonsThere are three control buttons located at the lower part of the front panel of your display:

Select: Display the On-Screen Display (OSD) Main Menu and selects items for user

adjustment.Note:Hold dow n this key for 2 secon ds w i l l c lear OSD menu.

Right( ): Move upward through the choice in the OSD submenu. If an adjustmentbar is displayed, this button increases the setting value.

Note: This key is also us ed as direct key to bring -up OSD Audio /Video.Left( ): Move downward through the choice in the OSD submenu. If an adjustment

bar is displayed, this button decreases the setting value.

Note: This key is also us ed as direct key . When the OSD Main Menu is in act ive,

press this key wi l l br ing-up Auto Setup submenu .

Displaying the OSD Main MenuYou can use the OSD features to change the screen settings of your display. To displaythe OSD Main Menu, please press the Select button.

Brightness

100


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4. Disassembly InstructionsTo disassembly the monitor, follow the steps as below:

1)Face Down the Monitor.Note: Face down the monitor on a smooth plane with a soft material on that plane to

protect the panel faceplate.

2)Hinge Cover and base RemovalAs below, remove the hinge cover and the 4 screw B then remove the base C.


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3)Back Cover Removal:As below, after removing the base, there will be 7 screws (indicated by D), and remove

them. Then you can remove the back covere E of the monitor.

4)Metallic Cover Removal:Remove 12 screws indicated as F from the back metallic cover. Then remove the back

metallic cover G.


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5)PCB Assembly Removal:Caution:When serving or replacing the panel, disconnect the DC power jack completely.

(a)Unplug all connected wires from the PCB.(b)Remove 4 screws indicated as H from the audio board, and then remove the board

carefully.

(c)Remove 6 screws indicated as I from the main board, and then remove the boardcarefully.


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6) Speaker Removal:

As below, remove the 6 screw A then remove the back cover D.

Remove the 4 screen B to remove the trumpet and 2 screen C to remove the

speaker audio in connector.


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5. General Connection and ApplicationsProcedures for installing and using this CML171SX LCD monitor are described as

below.

5.1 Connecting the monitor to the computer1)Place the display on a flat, sturdy surface. Choose an area free from excessive heat,

moisture, and sunlight. Avoid possible sources of electromagnetic interference, such as

transformers, motors, and fluorescent lighting.

2)Locate the AC power adapter with attached power cable and then connect the power cableto the power jack on the back of the display. Plug the three-prong power cord into a power

outlet, and plug the other end into the AC power adapter. The three-prong power cord is a

shielded type and is provided as a safety precautions to ensure proper electrical grounding.

Plug the D-SUB 15-pin analog signal cable into the Analog Input port or DVD-D 25 pin

signal cable into the Digital Input pory on the back of the display. Connect the other end of

the signal cable into your computers VGA output port. The assignment of the pins of the

connector is as follows:


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Pin Assignment of 15-pin D-SUB connector

1 Red Video 9 +5V for DDC circuit

2 Green Video 10 Logic Ground

3Blue Video

11Monitor Ground

4 Monitor Ground 12 DDC-Serial Data

5 DDC-Return 13 H-Sync.

6 Red Ground 14 V-Sync.

7 Green Ground 15 DDC-Serial Clock

8 Blue Ground

Pin Assignment of 25-pin DVI-D connector

1 RX2- 14 +5V

2 RX2+ 15 GND

3 GND 16 DETECT

4 RX4- 17 RX0-

5 RX4+ 18 RX0+

6 DVI_DDDCSCL 19 GND

7 DVI_DDDCSDA 20 RX5-

8 DVI_AVSYNC 21 RX5+

9 RX1- 22 GND

10 RX1+ 23 RXC-

11 GND 24 RXC+

12 RX3- 25 GND

13 RX3+

3)First turn the PC power switch ON. Then apply power to the display by pressing the powerbutton to turn the monitor on. The power indicator LED will then illuminate.

Note: Do not force the cable into the connector; line it up carefully so that you dontbend the pins.

6. Electronic Circuit Description6.1 PCB Board Circuit

The circuit diagrams of main board (PWB-0432) ;power&audio board (PWB-0433);

Inverter(panel include); key board(PWB-0409) are shown in Appendix A.


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7. Electronic Block Diagram

gm5060gm5060gm5060gm5060

PLL

ADC

TMDS

DIGITAL VIDEO

OSD

SCALER

292PIN PBGA Package

XTAL SDRAMADAPTER

19V DCPower Supply

Analog R.G.B

Digital DVI

EDID

EPROM

EDID

EPROM

MCU

EEPROM

Keypad

Audio InputAudio

SorroundAudio Amplifier Speaker/Earphone

Inverter

TFTLCD

PANEL

XTAL

+12V

+5V

+3.3V

+2.5V


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8. Troubleshooting Flow Chart

No image

appear

LED light up

Voltage of

P310(PWB-0433) at pin

3,4 are 5V and pin 7,8

are 12V

Replace PWB-0433

Voltage of

P010(PWB-0432) at pin

28,29,30 are 12V

The frequence of X001

and X003 is 24MHz

Replace MCU

I005

Replace X001

Replace X003

Replace PWB-0433

LED display is

amber

Is it entering power

saving mode

LED Display is

green

Replace inverter

Replace MCU

I005

Replace

PWB-0432

END END

END

END

END

END

END

YES

YES

YES

NONO

NO

NO

YES

YES

YES

Restasr PC signal to

ensure H.V Sync. are not

absent

NO

NO

YES

NO

Is LVDS cable

atttached firmly at the

LCD panel connector

and PWB-0432

Tighten LVDS cable

at LCD panel

connector and

PWB-0432

END

YES

NO


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No sound

output

(PWB-0433)

Are the

waveforms at

pin 15(L_IN) and

pin 2(R_IN) of I301

normal

Check audio source

Are the

waveforms

at pin 1(L_OUT) and

pin 7(R_OUT) of

P306 normal

Yes

No

Are two speakers

working correctly

Replace PWB-0433No

Yes

Replace speakersNo

END

Yes

END

END

END


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Appendix A. PCB Circuit


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A


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R602

75


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Appendix B. PCB Layout


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Appendix C. Parts List


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CML200UXW B MECHANICAL ASSEMBLY PART LIST (FUJITSU PANEL)

M1 BEZEL M-T-21812G1 5642286101 1

M2 INSULATION-INVERTER M-T-21841 5646503600 1

M3 FRAME M-T-21814G2 5642722101 1

M4 SHIELD-MPCB M-T-21815G2 5646249601 1

M5 VISA MOUNT BRACKET M-M-21554G1 5642721300 1

M6 BUCKET M-T-21813G1 5642286201 1

M7 BRACKET-NECK M-T-21818 5642722200 1

M8 BASE-FC M-T-21838G1 5641410101 1

M9 BASE-BC M-T-21817G1 5641410001 1

M10 BASE M-T-21816G1 5641409901 1

M11 BRACKET-NECK-B M-T-21825 5648109300 1

M12 PLATE-SWIVEL M-T-21819G1 5641410201 1

M13 RUBBER FOOT M-K-21669 5642025400 6

M14 MESH-SPK M-T-21823G1 5642316301 2M15 BEZEL-SPK M-T-21821G1 5642286301 2

M16 SPONGE-SPK M-K-21396G19 5642018218 2

M17 BUCKET-SPK M-T-21822G1 5642286401 2

M18 BASE-SPK M-T-21824G1 5640406301 2

M19 HOOK-SPK M-M-21624 5648734600 4

M20 PE FORM M-K-21705G3 5642026102 2

M21 HEAT SINK M-M-20464G6 5646428905 1

M22 HINGE COVER -R M-T-21836G1 5642286501 1

M23 HINGE COVER -L M-T-21937G1 5642286601 1

M24 SPACE-KEY M-K-21733 5642677400 1

M25 LIGHT-TUBE M-K-21751 5640328800 1

M26 PLUG M-K-21747 5642026700 2

R1 RIVET M-K-01312G3 5640205102 5

S1 SCREW BTBW M3x8 M-M-00565 7000305012 6

S2 SCREW PZP M3x8 M-M-20713 7134161182 2

S3 SCREW PPW M4x12 M-M-00608 7000311132 4

S4 SCREW PZP M4x12 M-M-20713 7134251682 24

S5 SCREW PZS M3x10 M-M-20712 7134161452 1

S6 SCREW PPW M3x6 M-M-00608 7000311032 12

S7 SCREW PZP M4x8 M-M-20713 7134251182 8

S8 SCREW PP M4x8 M-M-00510 7001261112 7S10 SCREW PPW M4x8 M-M-00608 7000311112 4

S11 SCREW PS M4x12 M-M-00647 7004261612 9

S12 SCREW BFB M4x12 M-M-20713 7034251652 8

S13 SCREW PPW M4x10 M-M-00608 7000311122 1

S14 SCREW PRWP M3x8 M-M-20718 7136161182 8

CRN Part Name Dwg No. Part No. Qty


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Description Part NumberADAPTER 19V 70W 3P 5061369415

BACK COVER 5642286201

BACK COVER SPEAKER 5642286401

BASE 5641409901

BASE BC 5641410001

BASE FC 5641410101

BASE SPEAKER 5640406301

BEZEL ASSY 5642286101

BEZEL SPEAKER 5642286301

BRACKET NECK 5642722200

BRACKET NECK B 5648109300

CABLE AUDIO TO SPEAKER BOX 5057402805

CABLE SIGNAL ANALOG D-SUB 5057415233

COVER HINGE L 5642286601

COVER HINGE R 5642286501

DRIVER DISK 5030032735

FRAME 5642722101

HEAT SINK 5646428905

HOOK SPEAKER 5648734600

INSULATION INVERTER 5646503600

KEY SPACE 5642677400

LABEL CML200UXWB 5030432732

LIGHT TUBE 5640328800

MESH SPEAKER 5642316301

PANEL -EXCHANGE- 5051253606

PE FORM 5642026102

PLATE SWIVEL 5641410201

PLUG 5642026700

PWB KEY BOARD PWB-0409 5097607903

PWB MAIN PWB-0432 5097607703

PWB POWER/AUDIO PWB-0433 5097607803

RIVET 5640205102

SHIELD MPCB 5646249601

SPONGE SPEAKER 5642018218

USERS MANUAL CML200UXW B 5030032725

WIRE ASSY LVDS TO PANEL 5057430009

WIRE ASSY TO INVERTER 5057412312

REPLACEMENT PARTS LIST


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Appendix D. Mechanical Disassembly


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No. 0534July 2002

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Hitachi Cml200uxw Sm