AOC+Service+Manual HP 2009v A00+Monitor+Lcd

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20" LCD Color Monitor

HP 2009v

Service Service Service

Horizontal Frequency 24 85 KHz

TABLE OF CONTENTSDescription Page Description Page Table of Contents.................................................1 Revision List.....................................................2 1. Monitor Specification....................................3 2. LCD Monitor Description.........4 3. Operation Instructions...........................5 3.1 General Instructions..........................................5 3.2 Control Buttons............................5 3.3 Adjust the Picture..............................................6 4. Input/Output Specification.....................9 4.1 Input Signal Connector...............................9 4.2 Factory Preset Display Modes...........................9 4.3 Power Supply Requirements.................................9 5. Panel Specification..........................10 5.1 General Feature..............................................10 5.2 Electrical Characteristics....10 5.3 Optical Characteristics.11 6. Block Diagram.....................................13 6.1 Software Flow Chart....13 6.2 Electrical Block Diagram................15 7. Schematic...........................................17 7.1 Main Board...............................................17 7.2 Power Board.....................................23 7.3 Key Board.........................................26 8. PCB Layout................................................27 8.1 Main Board........................................27 8.2 Power Board................................................29 8.3 Key Board......................................30 9. Maintainability................................................31 9.1 Equipments and Tools Requirement.......................31 9.2 Trouble Shooting......................................32 10. White-Balance, Luminance Adjustment...38 11. Mechanical Instructions.............40 12. Monitor Exploded View.... .............44 13. BOM List....46

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 TRANSFOMER FOR THIS UNIT WHEN SERVICING

1

20" LCD Color MonitorRevision ListVersion A00 Date May-22-09 Revision History Initial release

HP 2009v

TPV Model Name TARSABNB5WHPAN

2

20" LCD Color Monitor 1. Monitor Specification

HP 2009v

3

20" LCD Color Monitor 2. LCD Monitor Descriptionbrightness control logic and DDC.

HP 2009v

The LCD Monitor will contain a main board, a power board, a key board and which house the flat panel control logic, 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

CCFT Drive.

Flat Panel and CCFL backlight

Power Board (Include adapter, inverter board)

Main Board

Key board

Video signal, DDC

AC-IN 100V-240V

HOST Computer

4

20" LCD Color Monitor 3. Operation Instructions3.1 General Instructions

HP 2009v

Press the power button to turn the monitor on or off. The other control buttons are located at front of the panel. By changing these settings, the picture can be adjusted to your personal performance. - The power cord should be connected. - Connect the video cable from the monitor to the computer VGA card. - Press the power button to turn on the monitor, the power indicator will light up to Aqua-blue.

3.2 Control Buttons

5

20" LCD Color Monitor3.3 Adjust the Picture

HP 2009v

6

20" LCD Color Monitor

HP 2009v

7

20" LCD Color Monitor

HP 2009v

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20" LCD Color Monitor 4. Input/Output Specification4.1 Input Signal ConnectorPin No. 1 2 3 4 5 6 7 8 Description Red Video Green Video Blue Video None Ground (DDC Return) Red GND Green GND Blue GND VGA connector layoutPIN 1 PIN 5

HP 2009v

Pin No. 9 10 11 12 13 14 15

Description 3.3/+5 V (from PC) Sync Ground None DDC Data Horizontal Sync Vertical Sync DDC Clock

PIN 11

4.2 Factory Preset Display Modes

4.3 Power Supply RequirementsParameter AC Input Voltage AC Input Frequency Inrush Current Leakage Current Range 90 to 265V 45 to 63 Hz 50A at 220VAC and 30A at 120VAC 300mA Max at 120VAC

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20" LCD Color Monitor 5. Panel Specification

HP 2009v

LTM200KT01 is a color active matrix liquid crystal display (LCD) that uses amorphous silicon TFT (Thin Film Transistor) as switching components. This model is composed of a TFT LCD panel, a driver circuit and a back light unit. The resolution of a 20.0 is 1600 x 900 and this model can display up to 16.7 millions solors.

5.1 General Feature

5.2 Electrical Characteristics

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20" LCD Color Monitor5.3 Optical CharacteristicsTa= 252C, VDD=5V, fV=60Hz, fDCLK=59.1MHz, IL=6.5mArms

HP 2009v

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20" LCD Color Monitor

HP 2009v

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20" LCD Color Monitor 6. Block diagram6. 1 Software Flow Chart

HP 2009v

1

2

Y N

3

4

5 Y 6

N

7 Y 9

N

8

10 Y N 12 Y 14

N

11

13 Y 15 Y 17

N

N

16

18

N

19 Y

13

20" LCD Color MonitorRemark:

HP 2009v

1) MCU initialize. 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 initialize. 10) In standby mode? 11) Update the lifetime of back light. 12) Check the analog port, are theyre 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 disappear. 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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20" LCD Color Monitor6.2 Electrical Block Diagram6.2.1 Main Board

HP 2009v

LCD Interface (CN402)

Flash ROM PM25LV020 (U402) Key control Interface (CN401)

Scalar TSUMU18ER3 (Include: MCU, ADC, OSD etc) (U401) Crystal 14.318MHz (X401)

EEPROM M24C02 (U104)

EEPROM AT24C04BN (U403)

D-SUB Connector (CN101)

15

20" LCD Color Monitor6.2.2 Power Board

HP 2009v

AC input 100V~240V VEMI filter Rectifier Transformer Output Rectifier 5V 16V

Main Board/Inverter Circuit

Power Switching PWM Control IC Sense Resistor

Photo Couple

Sampling

16V DC

Switching MOS

Transformer

Resonance NET

High Voltage Output

IC Power Supply Converter

PWM Control IC

Open Lamp Protection

Current Sampling

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20" LCD Color Monitor 7. Schematic7.1 Main Board715G3281 1

HP 2009v

TSUMU18ER3DSUB_R+ DSUB_RDSUB_G+ DSUB_GDSUB_SOG DSUB_B+ DSUB_BDSUB_H DSUB_V DDC1_SDA DDC1_SCL DET_CABLE VCC3.3 DDC_WP DSUB_R+ DSUB_RDSUB_G+ DSUB_GDSUB_SOG DSUB_B+ DSUB_BDSUB_H DSUB_V DDC1_SDA DDC1_SCL DET_CABLE DDC_WP

SCHEMATICLVDS OUTPUTVCC1.8 VCC1.8 VCC3.3 CMVCC VCC3.3 CMVCC

VCC3.3

AudioSelf test_L AudioSelf test_R

AudioSelf test_L AudioSelf test_R

02.Input

06.AudioVCC1.8 VCC3.3 VCC1.8 CMVCC VCC3.3 MUTE VOLUME on_BACKLIGHT MUTE VOLUME on_BACKLIGHT PA[0..1] PA[4..9] PB[0..9] PPWR_ON# BKLT_VBRI BKLT_VBRI PA[0..1] PA[4..9] PB[0..9] PA[0..1] PA[4..9] PB[0..9] PPWR_ON# CMVCC

CMVCC

CMVCC

05.Power

03.Scalar

04.Output

T P V ( Top Key Component

Victory

Electronics

Co . ,

Ltd. )

OEM MODEL TPV MODEL

Size Rev 715G3281-E 1 of 6

A E

01.TOP Friday , December 05, 2008

PCB NAME Sheet

Date

17

20" LCD Color MonitorH_Sy nc V_Sy nc ESD_VCC R101 0R05 1/10W 5% R102 R103 C101 C103 22pF R108 4K7 1/16W 5% R109 4K7 1/16W 5% CN101 R111 100R 1/16W 5% 5 DDC1_SCL DDC1_SCL DSUB_SCL 15 14 R113 100R 1/16W 5% 5 DDC1_SDA DDC1_SDA DSUB_SDA 13 12 11 17 16 10 5 9 4 8 3 7 2 6 1 22pF 1K 1/16W 5% 1K 1/16W 5% DSUB_H DSUB_V 5 5 VGA_B+ 1 FB101 R104 BEAD 2 R107 75R 1/16W 5% VGA_B100R 1/16W 5% VGA_PLUG DSUB_5V 2 VGA_BVGA_B+ VGA_GVGA_G+ VGA_RVGA_R+ 2 DSUB_5V R112 470R 1/16W 5% ZD101 RLZ5.6B 1 ZD102 RLZ5.6B VGA_G+ 1 BEAD R115 75R 1/16W 5% VGA_G1 FB102 2 100R 1/16W 5% C108 5pF/50V R116 100R 1/16W 5% FB103 GND POWER DGND R117 VGA_R+ 1 BEAD 2 R118 75R 1/16W 5% ESD_VCC U101 DSUB_SCL DSUB_SDA 1 2 3 I/O1 I/O4 GNDVDD I/O2 I/O3 AZC099-04S 6 5 4 H_Sy nc V_Sy nc C113 NC DSUB_5V CMVCC VGA_R100R 1/16W 5% 0.047uF 100R 1/16W 5% C111 5pF/50V R119 0.047uF C110 0.047uF R114 C106 0.047uF 100R 1/16W 5% C104 5pF/50V R110 0.047uF C102 R105 2K2 1/16W 5% R106 2K2 1/16W 5%

HP 2009vDSUB_B+ 5

C105 DSUB_B- 5

DSUB_SOG 5 1000pF C107 DSUB_G+ 5

C109 DSUB_G- 5 0.047uF

DSUB_R+ 5

C112 DSUB_R- 5

2

1 D101 BAV70

ESD_VCC U102 VGA_R+ VGA_G+ 1 2 3 I/O1 I/O4 GNDVDD I/O2 I/O3 AZC099-04S 6 5 4 VGA_B+ 3 ESD_VCC

VCC3.3 VCC3.3 5,7

C114 NC

C115 0.22uF16V 1 2 3 4

R121 10K 1/16W 5% U104 A0 VCC WP A1 A2 SCL VSS SDA 8 7 6 5 DDC_WP 5 VGA_PLUG

R120 10K 1/16W 5% DET_CABLE 5

clo se to U102

DDC1_SCL DDC1_SDA

M24C02-WMN6T