AOC 172V Service Manual Download Page 36

17" LCD Color Monitor

                       

                              AOC 172V

 

36                                                                                                                     

12. BOM List   

T78SM5NCARSPNNE 

Location Part 

No. 

 

Description 

 CBPC7SM5AOH 

MAIN 

BOARD 

 KEPC780KAOCJP 

KEY 

BOARD 

 PWPC1742CPE1 

POWER 

BOARD 

 

15G6165SAM 3A 

MAIN FRAME 

 

26G 800504 3H 

BARCODE 

 

40G 58162435A 

MANUAL LABEL 

 

44G3749  1 

EPS(L) 

 

44G3749  2 

EPS(R) 

 

50G 600  2 

HANDLE1 

 

50G 600  3 

HANDLE2 

 

52G   1185 

MIDDLE TAPE 

 

52G   1186 

SMALL TAPE 

 

52G6025 11737 

INSULATE SHEET 

 

85G6108  1 

SHIELD 

 

89G 715HAA D2 

SIGNAL CABLE 

 

89G404A15N YH 

POWER CORD 

 

95G8018 30E15 

LVDS CABLE 30P-24P 150 

 

D1G1730  8120 

SCREW 

 

M1G 330  4120 

SCREW 

 

M1G1740  6120 

SCREW 

 

M1G1740  8120 

SCREW 

 

Q1G 330  8120 

SCREW 3X8mm 

 705GH7K0F34029 

ASS'Y 

 

750GLS70U315CN 

PANEL LTM170EU-L31 8TM 

 

H33G6246 KG  L 

HINGE COVER 

 

H34G6171 KG 1L 

BACK COVER 

 

H34G6177 KGA1L 

LOGO COVER 

 

H40G 17N61514C 

172V ID label 

 H41G170061512B 

172V 

MANUAL 

 H44G3749615 

7C 

CARTON 

 

H45G  87  1 2H   R 

PE BAG FOR MONITOR 

 

Q45G  76 28  H   A 

PE BAG FOR MANUAL 

 

Q52G6020 68 

AOC PROTECT FILM 

CN701 

33G8027 12 

WAFER 2*6P 2.0MM R/A 

CN403 

33G8027 16 

WAFER 16PIN 2.0mm DIP 

CN101 

33G8043 24  H 

WAFER 

 

40G 45762412B 

CBPC LABEL 

C710 

67G215V101 4N 

ELCAP 100UF +-20% 25V 1 

C712 

67G215V101 4N 

ELCAP 100UF +-20% 25V 1 

C408 

67G305V100 3P 

ELCAP 10UF +-20% 16V 10 

C717 

67G305V100 3P 

ELCAP 10UF +-20% 16V 10 

C403 

67G305V479 3P 

ELCAP 4.7UF +-20% 16V 1 

C702 

67G305V479 3P 

ELCAP 4.7UF +-20% 16V 1 

CN405 

88G 35315F HD 

D-SUB    CONN F ATTACHED 

X401 

93G  22 53  H 

14.31818MHZ/30PF/49US 

U401 56G 

562100 

TSUM16AK 

U702 

56G 563  7 

AIC1084-33PM 

U406 

56G 643 20 

RESET_4.38V_G690H438T73 

U404 56G1133 

34 

M24C02-WMN6TP 

U403 56G1133 

56 

M24C16-WMN6TP 

U402 56G1133716 

PM25LV512A-100SCE 

Q702 

57G 417 17    T 

PZT2907A 

Q401 

57G 417517 

LMBT3906LT1G SOT-23 BY 

Summary of Contents for 172V

Page 1: ...rol Button 5 3 3 Adjusting the Picture 5 4 Input Output Specification 7 4 1 Input Signal Connector 7 4 2 Factory Preset Display Modes 7 5 Panel Specification 8 5 1 Display Characteristics 8 5 2 Optica...

Page 2: ...17 LCD Color Monitor AOC 172V 2 Revision List Revision Date Revision History TPV Model A00 Mar 03 2008 Initial release T78SM5NCARSPNNE...

Page 3: ...ck 135MHz typ Max Resolution 1280 x 1024 75Hz Plug Play VESA DDC2BTM ON Mode 47W Power Consumption OFF Mode 2W Input Connector D Sub 15pin Analog 0 7Vp p standard Input Video Signal 75 OHM Positive Ho...

Page 4: ...ogic 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 HOST Computer AC IN 100V 240V PWPC bo...

Page 5: ...l light up 3 2 Control Buttons 1 Power Button Power Indicator 2 MENU ENTER 3 Contrast 4 Brightness 5 Auto Config Exit 3 3 Adjusting the Picture 1 Press the MENU button to activate the OSD window 2 Pre...

Page 6: ...B N A Recall sRGB from EEPROM User Red Red Gain from Digital register User Green Green Gain Digital register Color Temp User Blue Blue Gain from Digital register Yes N A Auto Adjust the H V Position F...

Page 7: ...10 11 15 4 2 Factory Preset Display Modes STANDARD RESOLUTION HORIZONTAL FREQUENCY kHz VERTICAL FREQUENCY Hz Dos mode 640 350 31 47kHz 70Hz Dos mode 720 400 31 47kHz 70Hz VGA 640 480 31 47kHz 60Hz 640...

Page 8: ...17 LCD Color Monitor AOC 172V 8 5 Panel Specification 5 1 Display Characteristics 5 2 Optical Characteristics...

Page 9: ...17 LCD Color Monitor AOC 172V 9 5 3 Parameter guide line for CCFL Inverter 1 TFT LCD Module 2 Back Light Unit...

Page 10: ...17 LCD Color Monitor AOC 172V 10 6 Block Diagram 6 1 Software Flow Chat 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 N 16 17 19 Y N 18...

Page 11: ...e 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 interrup...

Page 12: ...6 2 Electric Block Diagram 6 2 1 Main Board FLASH MEMORY PM25LV512A U402 Scalar TSUM16AK Include MCU ADC OSD etc U401 EEPROM 24C02 U404 H sync V sync RGB DB12_SDA DB15_SCL LCD Interface CN101 EEPROM 2...

Page 13: ...fier and Filter Start Circuit R905 R906 R907 R908 R909 R910 PWM Control IC Transformer Over Voltage Protect Rectifier diode AC input 5V 12V ON OFF Control PWM Control IC Feedback Circuit OSC and Outpu...

Page 14: ...9 PB 0 5 PB 6 11 GPO 0 4 OSP VLCD_12V PB 12 23 TSUM16AK PA 0 7 3V3 PA 8 13 VCC1 8 PA 14 19 PB 6 11 B4 4 SCALER RIN GIN SOG BIN GNDR GNDG GNDB HSYNC VSYNC Adj_BACKLIGHT VCC1 8 Vcc3 3 VCTRL PA 0 7 PA 8...

Page 15: ...4K7 D C 5V R703 2K 1 16W 4 7K C716 0 1uF 5V R710 NC on_Panel 4 R31 C708 1uF R716 NC Q701 PMBS3904 R31 GND 5V 3 4 5V GND H3 TP 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 C719 NC 10uF 16V VCC1 8 4 VLCD C718 0...

Page 16: ...16W R443 100 1 16W C433 0 047uF DET_VGA 4 SOG 4 B 4 R460 10K 1 16W R467 10 1 16W R436 56 1 16W GNDR 4 DDCD_SCL 4 ESD_5V VSYNC 4 CN406 JACK DVI 1 2 3 4 5 6 7 8 25 28 9 10 11 12 13 14 15 16 26 29 17 18...

Page 17: ...PA 8 13 5 CLK 3 G 3 GIN 3 BIN 3 KEY_A CN404 CONN 2 4 6 8 10 12 14 1 3 5 7 9 11 13 C409 0 1uF U403 AT24C16N 10SC 2 7 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC CLK 3 VCC3 3 PA0 PA16 PA5 R406 10K 1 16W...

Page 18: ...FR1P C107 NC NC 12V RA2N CLKBN R108 NC NC PB7 PA 14 19 4 R90 V B1N BR1P BB3P STV2 FB2N NC PA18 LVB3M FG0P NC GB2N RXO2 RXOC GPOO2 PA1 LVB1M RA1P GA2N RB1N LVB3M 0R R92 V GA3P BB2P NC STV1 QDI 17 B0P...

Page 19: ...17 LCD Color Monitor AOC 172V 19 7 2 Power Board...

Page 20: ...17 LCD Color Monitor AOC 172V 20...

Page 21: ...17 LCD Color Monitor AOC 172V 21 8 PCB Layout 8 1 Main Board...

Page 22: ...17 LCD Color Monitor AOC 172V 22...

Page 23: ...17 LCD Color Monitor AOC 172V 23...

Page 24: ...17 LCD Color Monitor AOC 172V 24 8 2 Power Board...

Page 25: ...17 LCD Color Monitor AOC 172V 25...

Page 26: ...17 LCD Color Monitor AOC 172V 26...

Page 27: ...17 LCD Color Monitor AOC 172V 27 8 3 Key Board...

Page 28: ...C 172V 28 9 Maintainability 9 1 Equipments and Tools Requirement 1 Voltmeter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an IBM Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Servi...

Page 29: ...and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Measure U702 PIN2 3 3V Reinsert or check the power section X401 oscillate waveforms are normal Measure CN70...

Page 30: ...ure OK OK NG NG Measure U401 PIN28 3 3V Replace U401 X401 oscillate waveforms are normal Replace X401 Check if the sync signal from computer is output and video cable is connected normally Input the s...

Page 31: ...ltage of C905 Check bridge rectified circuit and F901 circuit Check start voltage for the pin3 of IC901 Check R906 R907 and Change IC901 NG Check the auxiliary voltage is bigger than 10V and smaller t...

Page 32: ...2V NG OK Change Q201 or Q202 NG OK Change U201 Check D201 D202 have the output of square wave at short time NG OK Check Q205 Q206 Q207 Q208 NG Check the output of PT201 PT202 Check Q209 Q210 Q211 Q212...

Page 33: ...OSD is unstable or not working Is Key Pad Board connecting normally Connect Key Pad Board Is Button Switch normally Replace Button Switch Y N N Is Key Pad Board normally Replace Key Pad Board Y N Y C...

Page 34: ...ch the MEM Channel to Channel 3 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 296 20 y 311 20 Y 180 cd m2 4 Adjust the RED of color1 on factory window until chrom...

Page 35: ...17 LCD Color Monitor AOC 172V 35 11 Monitor Exploded View...

Page 36: ...6177 KGA1L LOGO COVER H40G 17N61514C 172V ID label H41G170061512B 172V MANUAL H44G3749615 7C CARTON H45G 87 1 2H R PE BAG FOR MONITOR Q45G 76 28 H A PE BAG FOR MANUAL Q52G6020 68 AOC PROTECT FILM CN70...

Page 37: ...00 OHM 5 R488 61G0603101 RST CHIPR 100 OHM 5 R704 61G0603101 RST CHIPR 100 OHM 5 R446 61G0603102 RST CHIPR 1KOHM 5 1 R447 61G0603102 RST CHIPR 1KOHM 5 1 R476 61G0603102 RST CHIPR 1KOHM 5 1 R477 61G060...

Page 38: ...2 CHIP 0 1UF 50V X7R C410 65G0603104 32 CHIP 0 1UF 50V X7R C411 65G0603104 32 CHIP 0 1UF 50V X7R C412 65G0603104 32 CHIP 0 1UF 50V X7R C413 65G0603104 32 CHIP 0 1UF 50V X7R C414 65G0603104 32 CHIP 0 1...

Page 39: ...6ST D411 93G 39147SEM ZMM5V6ST D412 93G 39147SEM ZMM5V6ST D407 93G 64 42 P BAV70 SOT 23 D702 93G 6432P LL4148 D403 93G 6433P BAV99 D404 93G 6433P BAV99 D405 93G 6433P BAV99 D401 93G 39S 45 T RLZ36B BY...

Page 40: ...8 KBP208G CN102 95G8021 12529 HARNESS H1 J85G8113 1 SHIELD IC901 56G 379 53 LD7552BN Q209 57G 761501 BTC5706I3 Q210 57G 761501 BTC5706I3 Q211 57G 761501 BTC5706I3 Q212 57G 761501 BTC5706I3 705G 780 57...

Page 41: ...805105 27 CHIP 1UF Y5V 0805 C209 65G0805105 27 CHIP 1UF Y5V 0805 C210 65G0805105 27 CHIP 1UF Y5V 0805 C211 65G0805105 27 CHIP 1UF Y5V 0805 C212 65G0805105 27 CHIP 1UF Y5V 0805 C219 65G0805105 27 CHIP...

Page 42: ...4 R238 61G172S12352T RST CFR 12KOHM 5 1 4 R239 61G172S12352T RST CFR 12KOHM 5 1 4 R210 61G172S15352T RST CFR 15KOHM 5 1 4 R211 61G172S15352T RST CFR 15KOHM 5 1 4 R220 61G172S15352T RST CFR 15KOHM 5 1...

Page 43: ...5G517K102 5T69 21 1000PF 10 500V Y5P C921 65G517K102 5T69 21 1000PF 10 500V Y5P C907 67G 2152207NT ELCAP 22UF 20 50V 10 C207 67G 305479 7T ELCAP 4 7UF 20 50V 1 90G6064 1 HEAT SINK D912 93G 60217 FMB29...

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