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19" LCD Color Monitor
Service
Service
Service
Description

Table Of Contents......................................................1

Revision List........................................................2
1. Monitor Specification...............................................3
2. LCD Monitor Description........................................4
3. Operation Instruction............................................5
3.1. General Instructions.........................................5
3.2. Control Button......................................................5
3.3 Adjusting the Picture..........................................6
4. Input/Output Specification.......................................8
4.1. Input Signal Connector.........................................8
4.2. Factory Preset Display Modes...........................9
4.3. Power Supply Requirements...............................9
5. Panel Specification.........................................10
5.1. General Feature...............................................10
5.2. Optical Characteristics....................................11
6. Block Diagram.....................................................12
6.1. Monitor Exploded View...................................12
6.2 Software Flow Chart...............................13
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
TABLE OF CONTENTS
Page Description
6.3. Electrical Block Diagram...........................15
7. Schematic.....................................................17
7.1 Main Board....................................................17
7.2 Power Board...............................................22
7.3 Key Board..............................................24
7.4 Audio Board..............................................25
8.PCB Layout.....................................................26
8.1. Main Board.................................................26
8.2. Power Board..........................................29
8.3. Key Board...............................................32
8.4. Audio Board...............................................32
9. Maintainability................................................33
9.2. Trouble Shooting.......................................34
11. BOM List........................................................42
12. Different Parts List...............................................58
SAFETY NOTICE
1
COMPAQ W19Q
Horizontal Frequency
30- 83 kHz
Page

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Table of Contents

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   Summary of Contents for Compaq W19Q

  • Page 1: Table Of Contents

    19" LCD Color Monitor COMPAQ W19Q Service Service Service Horizontal Frequency 30- 83 kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents..……......…..1 6.3. Electrical Block Diagram……………..…..15 Revision List.…........……..2 7. Schematic……………........17 1. Monitor Specification......………..3 7.1 Main Board..………........17 2. LCD Monitor Description……………………………..4 7.2 Power Board.….……........22...
  • Page 2: Revision List

    19" LCD Color Monitor COMPAQ W19Q Revision List Version Date Revision History TPV Model Name T96HGFDBW3CPAE Nov.-24-06 First release T96MGFDBW3CPAE...
  • Page 3: Monitor Specification

    19" LCD Color Monitor COMPAQ W19Q 1. Monitor Specification...
  • Page 4: Lcd Monitor Description

    19" LCD Color Monitor COMPAQ W19Q 2. LCD Monitor Description The LCD Monitor will contain main board, power board, key board and an audio 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.
  • Page 5: Operation Instruction

    19" LCD Color Monitor COMPAQ W19Q 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 of the panel. By changing these settings, the picture can be adjusted to your personal performance.
  • Page 6: Adjusting The Picture

    19" LCD Color Monitor COMPAQ W19Q 3.3 Adjust the Picture...
  • Page 7 19" LCD Color Monitor COMPAQ W19Q...
  • Page 8: Input/output Specification

    19" LCD Color Monitor COMPAQ W19Q 4. Input/Output Specification 4.1 Input Signal Connector Signal Signal Red Video +5 V (from PC) Green Video Ground Blue Video Ground Ground DDC-serial Data Detect Cable Horizontal Sync Red GND Vertical Sync Green GND...
  • Page 9: Factory Preset Display Modes

    19" LCD Color Monitor COMPAQ W19Q 4.2 Factory Preset Display Modes 4.3 Power Supply Requirements Parameter Range AC Line Voltage range 100 to 240V AC Line Frequency range 47 to 63 Hz Peak surge Current < 55 A MAX AT 220VAC and cold starting Leakage Current <...
  • Page 10: Panel Specification

    19" LCD Color Monitor COMPAQ W19Q 5. Panel Specification 5.1 General Feature Mechanical Information...
  • Page 11: Optical Characteristics

    19" LCD Color Monitor COMPAQ W19Q 5.2 Optical Characteristics Optical Specification...
  • Page 12: Software Flow Chart

    19" LCD Color Monitor COMPAQ W19Q 6.2 Software Flow Chart...
  • Page 13 19" LCD Color Monitor COMPAQ W19Q REMARK: 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.
  • Page 14: Electrical Block Diagram

    19" LCD Color Monitor COMPAQ W19Q 6.3 Electrical Block Diagram 6.3.1 Scalar Board LCD Interface (CN501) EEPROM Scalar IC GM5726-LF-AB (Include ADC, OSD, MCU) SST25VF010A- (U401) EPR_SDA 33-4C-SAE EPR_SCL (U402) H sync CLK+ V sync CLK- D-Sub Crystal Connector 14.31818MHz...
  • Page 15 19" LCD Color Monitor COMPAQ W19Q 6.3.2 Inverter / Power Board AC inlet filter Rectifier and Rectifier and 12V /5V Transform filter filter D904; D905 To main board Start circuit R903; R904, R931 OVP circuit Switching circuit Feedback PWM control circuit IC&MOSFET...
  • Page 16: Schematic

    19" LCD Color Monitor COMPAQ W19Q 7. Schematic 7.1 Main Board +3.3V_VDD CN201 RX2-IN R202   1/16W A_GND RX2- RX2+IN R203 1/16W R214   RX2+ SGND 1005/08/13 Change to HDCP   1/16W SCL_IN_DVI DDCCLK DVI_HPD SDA_IN_DVI R217   1/16W DDCDAT...
  • Page 17 19" LCD Color Monitor COMPAQ W19Q 4/13 Add R332,R333 for reverse ver.BC brown out detect +3.3V_VDD 3.3V_DVDD 3.3V_DDC +1.8V_VDD 1.8V_AVDD R301   1/16W L301 C302 C303 C304 C305 C306 C307 C308 L302 C310 C311 C312 C313 C314 120 OHM 120 OHM...
  • Page 18 19" LCD Color Monitor COMPAQ W19Q L402 +12V 120 OHM R401   1/16W CN401 R426   1/16W R402 R403 150K   1/16W 4.7K   1/16W STANDBY L401 R425 1/16W   R405 MUTE 120 OHM   1/16W Q401 SPKR_L+ SPKR_R+ R427...
  • Page 19: Panel Interface

    19" LCD Color Monitor COMPAQ W19Q LVDS_O[0..9] LVDS_O0 CN501 LVDS_O1 LVDS_O2 LVDS_O3 LVDS_O0 RXO0- RXO0+ LVDS_O1 LVDS_O4 LVDS_O2 RXO1- RXO1+ LVDS_O3 LVDS_O5 LVDS_O4 RXO2- RXO2+ LVDS_O5 LVDS_O6 LVDS_O6 RXOC- RXOC+ LVDS_O7 LVDS_O7 LVDS_O8 RXO3- RXO3+ LVDS_O9 LVDS_O8 LVDS_E0 RXE0- RXE0+...
  • Page 20 19" LCD Color Monitor COMPAQ W19Q +12V CN601 ON_OFF R601 4.7K 1/16W   PBIAS VCC12V VCC12V +3.3V_VDD U601 VCC5V VCC5V 1.435A VOUT CON402(PITCH 2.00) 142mA C603 C604 C602 C601 220uF/25V 0.1uF/16V AIC1084-33M 0.1uF/16V 220uF/25V C605 C607 C606 C608 0.1uF/16V 220uF/25V 0.1uF/16V...
  • Page 21: Power Board

    19" LCD Color Monitor COMPAQ W19Q 7.2 Power Board R934 47 1206 R935 47 1206 BD901 R906 4A 800V R905 47 1206 R931 C930 100K   D908 C905 100KΩ 1/4W 0.0015uF/2KV C934 SP20150 L903 JUMP C931 3.5UH F903 1000PF/500V 100uF/450V...
  • Page 22 19" LCD Color Monitor COMPAQ W19Q CN801 PT801 80GL19T 8 DN GP C816 OPT1 CONN 22pF/3KV R836 +12V   1/10W C841 22pF/3KV R802 R804 R805 CN802 300KΩ 1/8W 470Ω 1/4W 0805 C828   0.1uF C825 C811 5pF/3KV Q803 470UF/25V OPT2...
  • Page 23: Key Board

    19" LCD Color Monitor COMPAQ W19Q 7.3 Key Board ESD by jc chen 2006/5/11 GND wire CN002 CN003 SPK-R R101 75  SPKR_R+ R102 75  SPKR_L+ CN004 EAR PHONEJACK SPK-L ZD102 ZD101 BZX79-B5V6 BZX79-B5V6 ESD by jc chen 2006/5/11 KEY_SEL CN001...
  • Page 24: Audio Board

    19" LCD Color Monitor COMPAQ W19Q 7.4 Audio Board OUT_L +12V CN202 MUTE CN204 VOLUME C203 +12V C201 C202 0.1uF 470uF/16V 470uF/16V OUT_R C214 CONN CONN U201 E-TDA7496L CN201 C204 C205 0.47uF/100V 470uF/16V R201 18K  OUTL OUTR C206 R203 18K ...
  • Page 25: Equipments And Tools Requirement

    19" LCD Color Monitor COMPAQ W19Q 9. Maintainability 9.1Equipments and Tools Requirement 1. Multi-meter. 2. Oscilloscope. 3. Pattern Generator. 4. DDC Tool with an IBM Compatible Computer. 5. Alignment Tool. 6. LCD Color Analyzer. 7. Service Manual. 8. User Manual.
  • Page 26: Trouble Shooting

    19" LCD Color Monitor COMPAQ W19Q 9.2 Trouble Shooting 9.2.1 Main Board 1、No power Measured CN601 pin5/6 = 12V? Check Correspondent component. Measured CN601 pin 9/10= 5V? Is there any shortage or cold solder? Measured U601 pin 2= 3.3V? Measured U602 pin 2= 1.8V? Yes, all DC level exist Yes.
  • Page 27: Power Board

    19" LCD Color Monitor COMPAQ W19Q 2. Panel Power Circuit Check C501 should have response from 0V to 5V Measured X301 waveform is normal? When we switch the power switch from off to on Replace X301 (14.318MHz) Check Q602, Q603 is broken or CN501 solder abnormal?
  • Page 28 19" LCD Color Monitor COMPAQ W19Q 4. U401-Data Output Measured X301 waveform is Replace X301(14.318MHz) normal? Check GM5726 (U401) Check relative circuit to panel Signal output (PIN31-40, 7-16) Is the waveform ok? Check relative component Check HS/VS input signal are normal?
  • Page 29 19" LCD Color Monitor COMPAQ W19Q 9.2.2 Power Board 1. No Power No power Check to CN902 Pin1, 2 =12V and Pin3, 4 = 5 V Check Interface board Check AC line volt 120V or 220V Change F901, Check BD901, Q903, IC901...
  • Page 30 19" LCD Color Monitor COMPAQ W19Q 2. W/LED No Backlight Check C811 (+) =12V Check adapter circuit Check ON/OFF signal Check Interface board Check IC801 PIN2=5V, Pin9=12V voltage of C905(+) Check Q801,Q802,Q803 Check the Pin1, Pin15 of IC801 have square wave...
  • Page 31 19" LCD Color Monitor COMPAQ W19Q 9.2.3 Key Board OSD is unstable or not working Is Keypad board connecting normally? Connect Keypad Board Is Button Switch normally? Replace Button Switch Replace Keypad Board Is Keypad board normally? Check main board...
  • Page 32: White-balance, Luminance Adjustment

    6500k color temp. parameter is x = 313±20, y = 329 ±20, Y>200 cd/m 3. Into factory mode of COMPAQ W19Q A. Turn on power, press the Menu button, pull out the power cord, and then plug the power cord. Then the factory OSD will be at the left top of the panel.
  • Page 33 19" LCD Color Monitor COMPAQ W19Q 4. Adjust the RED of color sRGB on factory window until chroma 7120 indicator reached the value R=100 5. Adjust the GREEN of color sRGB on factory window until chroma 7120 indicator reached the value G=100 6.
  • Page 34: Bom List

    19" LCD Color Monitor COMPAQ W19Q 11. BOM List T96HGFDBW3CPAE Location Part No. Description AUPC986H1P AUDIO BOARD CBPC986HHCHPP CONVERSION BOARD KEPC986H1P KEY BOARD PWPC1942HH2P POWER BOARD E095 S95G80183518 LVDS ASS'Y 11G6092 1 FIX BUTTON 1185 MIDDLE TAPE FOR CARTON 1186...
  • Page 35 19" LCD Color Monitor COMPAQ W19Q Q44G9028 2 EPS(R) Q45G 88606 14 PE BAG Q52G6025 13 40 MYLAR AUPC986H1AIP AUDIO BOARD FOR AI CN202 33G802414C H6176 2*7PIN DUAL ROW RIGHT A U201 56G 616 31 IC TDA7496T 1.2W*2 DIP- C201...
  • Page 36 19" LCD Color Monitor COMPAQ W19Q 44G3231508512 GASKET C324 67G215V100 7R LOW E.S.R 10UF +/-20% 5 C602 67G215V221 4R LOW E.S.R 220UF +/-20% C611 67G215V221 4R LOW E.S.R 220UF +/-20% C301 67G215Y2207RV RUBYCON 50V 22UF C309 67G215Y2207RV RUBYCON 50V 22UF...
  • Page 37 19" LCD Color Monitor COMPAQ W19Q R340 61G0603000 RST CHIP MAX 0R05 1/10W R428 61G0603000 RST CHIP MAX 0R05 1/10W R429 61G0603000 RST CHIP MAX 0R05 1/10W R202 61G0603100 RST CHIP 10OHM 1/10W 5% R203 61G0603100 RST CHIP 10OHM 1/10W 5%...
  • Page 38 19" LCD Color Monitor COMPAQ W19Q R238 61G0603221 RST CHIP 220R 1/10W 5% R239 61G0603221 RST CHIP 220R 1/10W 5% R411 61G0603221 RST CHIP 220R 1/10W 5% R412 61G0603221 RST CHIP 220R 1/10W 5% R413 61G0603221 RST CHIP 220R 1/10W 5%...
  • Page 39 19" LCD Color Monitor COMPAQ W19Q R324 61G0603472 RST CHIP 4K7 1/10W 5% R329 61G0603472 RST CHIP 4K7 1/10W 5% R343 61G0603472 RST CHIP 4K7 1/10W 5% R402 61G0603472 RST CHIP 4K7 1/10W 5% R424 61G0603472 RST CHIP 4K7 1/10W 5%...
  • Page 40 19" LCD Color Monitor COMPAQ W19Q C313 65G0603104 12 0.1UF +-10% 16V X7R C314 65G0603104 12 0.1UF +-10% 16V X7R C317 65G0603104 12 0.1UF +-10% 16V X7R C318 65G0603104 12 0.1UF +-10% 16V X7R C320 65G0603104 12 0.1UF +-10% 16V X7R...
  • Page 41 19" LCD Color Monitor COMPAQ W19Q C216 65G0603473 32 CHIP 0.047UF 50V X7R L301 71G 56K121 M CHIP BEAD L302 71G 56K121 M CHIP BEAD L303 71G 56K121 M CHIP BEAD L304 71G 56K121 M CHIP BEAD L305 71G 56K121 M...
  • Page 42 19" LCD Color Monitor COMPAQ W19Q AIK986H1SMTP KEY BOARD FOR SMT CN003 33G3802 2H 6176 WAFER 2P RIGHT ANGLE CN004 33G3802 2H 6176 WAFER 2P RIGHT ANGLE CN001 33G8027 12 H6176 PIN HEADER 2*6 R/A SW001 77G 600 1 CJ6425...
  • Page 43 19" LCD Color Monitor COMPAQ W19Q C902 65G305M1022BP Y2 1000PF M 250VAC Y5P C900 65G306M2222BP 2200PF +-20% 400VAC C905 67G215S10115N PAG450VB100-M-L18*35.5M C811 67G215V471 4K ED 470UF 25V C815 67G215V471 4K ED 470UF 25V C904 67G215V471 4K ED 470UF 25V C911...
  • Page 44 19" LCD Color Monitor COMPAQ W19Q JR804 61G0805000 RST CHIP MAX 0R05 1/8W JR805 61G0805000 RST CHIP MAX 0R05 1/8W JR807 61G0805000 RST CHIP MAX 0R05 1/8W R810 61G0805100 4F RST CHIPR 1 MOHM +-1% 1 R816 61G0805100 4F RST CHIPR 1 MOHM +-1% 1...
  • Page 45 19" LCD Color Monitor COMPAQ W19Q R827 61G0805752 RST CHIPR 750 OHM +-5% R831 61G0805752 RST CHIPR 750 OHM +-5% R814 61G0805754 RST CHIPR 750 KOHM +-5% R823 61G0805823 RST CHIP 82K 1/8W 5% R830 61G0805823 RST CHIP 82K 1/8W 5%...
  • Page 46 19" LCD Color Monitor COMPAQ W19Q R901 61G1206684 RST CHIPR 680 KOHM +-5% R902 61G1206684 RST CHIPR 680 KOHM +-5% R903 61G1206684 RST CHIPR 680 KOHM +-5% C805 65G0805102 31 1000PF 50V NPO C803 65G0805103 32 10NF/50V/0805/X7R C807 65G0805103 32...
  • Page 47 19" LCD Color Monitor COMPAQ W19Q D804 93G 64 33 BAV99 SOT-23 D805 93G 64 33 BAV99 SOT-23 D806 93G 64 33 BAV99 SOT-23 D809 93G 6432S 1N4148W D810 93G 6432S 1N4148W D811 93G 6432S 1N4148W D812 93G 6432S 1N4148W...
  • Page 48 19" LCD Color Monitor COMPAQ W19Q JP904 95G 90 23 TINCOATEDCOPPER JP911 95G 90 23 TINCOATEDCOPPER JP914 95G 90 23 TINCOATEDCOPPER JP917 95G 90 23 TINCOATEDCOPPER JP918 95G 90 23 TINCOATEDCOPPER JP919 95G 90 23 TINCOATEDCOPPER JP920 95G 90 23...
  • Page 49 19" LCD Color Monitor COMPAQ W19Q E078R 78G 322502 KR SPEAKER 8OHM 1.5W Q1G1030 8128 CR3 SCREW A33G0031 1 1C POWER LENS A33G0032AAQ 1L KEY PAD A34G0052AAQA2B 30 BEZEL Q1G 340 12128 CR3 SCREW A34G0053AAA 1B STAND TOP A34G0054AAA 1B...
  • Page 50: Different Parts List

    19" LCD Color Monitor COMPAQ W19Q 12. Different Parts List Diversity of T96MGFDBW3CPAE Compared with T96HGFDBW3CPAE Location Part No. Description CBPC986HMCHFP CONVERSION BOARD PWPC1942MH1P POWER BOARD 52G6022 1500 SMALL TAPE E089A 89G404A19N IS POWER CODE 705GH9K0F34013 ASS'Y E750L 750GLM90A1211Z000H "PANEL LCD 19"A1-L02 C1...
  • Page 51 19" LCD Color Monitor COMPAQ W19Q R205 61G0603100 6857 RST CHIP 10 OHM 1/10W R206 61G0603100 6857 RST CHIP 10 OHM 1/10W R207 61G0603100 6857 RST CHIP 10 OHM 1/10W R208 61G0603100 6857 RST CHIP 10 OHM 1/10W R209 61G0603100...
  • Page 52 19" LCD Color Monitor COMPAQ W19Q R415 61G0603221 6857 RST CHIP 220 OHM 1/10W R240 61G0603222 6857 RST CHIP 2.2K 1/10W 5% R241 61G0603222 6857 RST CHIP 2.2K 1/10W 5% R217 61G0603223 6857 RST CHIP 22K 1/10W 5% R420 61G0603223...
  • Page 53 19" LCD Color Monitor COMPAQ W19Q R605 61G0603472 6857 RST CHIP 4.7K 1/10W 5% R405 61G0603473 6857 RST CHIP 47K 1/10W 5% R406 61G0603473 6857 RST CHIP 47K 1/10W 5% R409 61G0603473 6857 RST CHIP 47K 1/10W 5% R410 61G0603473...
  • Page 54 19" LCD Color Monitor COMPAQ W19Q C322 65G0603104 126805 0.1UF +-10% 16V X7R C323 65G0603104 126805 0.1UF +-10% 16V X7R C326 65G0603104 126805 0.1UF +-10% 16V X7R C330 65G0603104 126805 0.1UF +-10% 16V X7R C332 65G0603104 126805 0.1UF +-10% 16V X7R...
  • Page 55 19" LCD Color Monitor COMPAQ W19Q L306 71G 56K121 M6888 CHIP BEAD L402 71G 56K121 M6888 CHIP BEAD MAIN PC 715G2176 1 6995 MAIN BOARD PCB PW1942MH1SMTP POWER BOARD FOR SMT L903 S73G25391V TRANSFORMER L904 S73G25391V TRANSFORMER CN801 33G8021 2D U6W34 3.5mm WAFER...
  • Page 56 19" LCD Color Monitor COMPAQ W19Q R806 61G0805103 6857 RST CHIP 10K 1/8W 5% R812 61G0805103 6857 RST CHIP 10K 1/8W 5% R912 61G0805103 6857 RST CHIP 10K 1/8W 5% R815 61G0805104 6857 RST CHIP 100K 1/8W 5% R913 61G0805104...
  • Page 57 19" LCD Color Monitor COMPAQ W19Q R936 61G1206101 6857 RST CHIP 100 OHM 1/4W R937 61G1206101 6857 RST CHIP 100 OHM 1/4W R911 61G1206102 6857 RST CHIP 1K OHM 1/4W 5 R927 61G1206103 6857 RST CHIP 10K OHM 1/4W R904...
  • Page 58 19" LCD Color Monitor COMPAQ W19Q C916 65G0805104 326805 CHIP 0.1U 50V X7R C917 65G0805104 326805 CHIP 0.1U 50V X7R C918 65G0805104 326805 CHIP 0.1U 50V X7R C919 65G0805104 326805 CHIP 0.1U 50V X7R C804 65G0805105 226805 CHIP 1UF 25V X7R 0805...

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