Acer H243 Service Manual Download Page 44 | Manualshive

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Acer

Acer –LCD-H243H

42

4.2

Black screen

Check power supply:

Pin 1, 2 of CN104

POWER Fail

Check U101,

U102

Check C161,

R183

Check X101, C156,

C157,R191

Inverter Fail

U104 fail

Black Screen

Check Q102,

R101, R102

Check power supply:

For U104

Check reset:

pin 8 of U104

Check Crystal

waveform

Pin 25,26 of U104

Check CCFL_Enable

Pin 101 of U104

Check Pin 7 of CN104

NG

NG

NG

NG

NG

OK

OK

OK

OK

OK

OK

NG

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Summary of Contents for H243

Page 1: ...Acer Acer LCD H243H 0 Service Manual LCD Monitor Acer H243H...

Page 2: ...06 Schematics and Layouts 43 07 Assembly and Disassembly 46 Appendix User s manual Copyright Copyright 2006 InnoLux Tech Corp Ltd All Rights Reserved This manual may not in whole or in part be copied...

Page 3: ...lug the power cable immediately and consult your closed dealer z Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto the cloth no...

Page 4: ...P 3 Input interface Analog D sub 15 pin Digital Option DVI D 24 pin HDMI 19Pin Power management Compatible with VESA DPMS Plug Play VESA DDCCI OSD language English French Spanish Italian Deutsch Simpl...

Page 5: ...d meet the standard of IEC61000 4 2 EN55024 without discharge on VGA DVI pin 2 4 Reliability The MTBF of this product shall be greater than 25 000 hours excluding the LCD panel The LCD panel life whic...

Page 6: ...therwise noted Temperature 25 5 C Test pattern white Video Resolution 1920 x 1080 Video input level 700 mV 2 Warm up time 30 minutes Set brightness control and also contrast control at maximum to meas...

Page 7: ...600x900 67 5 75 108 VESA 1280x960 1800x1000 60 60 108 1280x1024 1688x1066 63 981 60 020 108 000 SXGA 1280x1024 1688x1066 79 976 75 025 135 000 VESA 1280x720 1650x750 44 955 59 940 74 176 1280x800 1680...

Page 8: ...ecifications All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted The standard conditions are Temperature 25 5 C War...

Page 9: ...the volume MENU A When Main OSD un displays press MENU to enter OSD interface B When Main OSD displays press MENU to perform function of menu icon that is highlight or enter next level menu AUTO A Whe...

Page 10: ...th Control Range Default Value User Text Standard Graphics Acer e color Management empowering Technology Movie Standard User mode 77 Text mode 44 Standard mode 77 Graphics mode 97 Brightness 0 100 Mov...

Page 11: ...t 50 is for Visa timing Others depend on timing 2 Depend on timing S N 6 SOP of firmware upgrade Manufacturer of Scaler is Mstar 6 1 Operational condition Equipment PC ISP card signal cable and power...

Page 12: ...Device next select manufacturer model of FW IC which should be correspondent with that of PCBA FW IC Double click Figure One Secondly download FW software first select READ and then load FW software i...

Page 13: ...CD H243H 12 Thirdly select Connect and enter ISP MODE as in the following Figure 3 Fourthly select AUTO and keep its default value Click RUN for beginning programming There will be prompting if progra...

Page 14: ...n E2PROM DEVICE SETTING Flowing chart After connecting AC ON DC ON Open ISP program Choose manufacturer and model of FW IC LOAD FW software Click Connect and enter ISP MODE Click AUTO and RUN for begi...

Page 15: ...Acer Acer LCD H243H 14 2 Flat Panel Specification...

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Page 40: ...0R SCREW P CROSS W WAS M3 6 Zn Cc 7 6 5 0 5 For NVBD PWRBD HDMI 2 509216608 110R SCREW F CROSS M4 8 B LACK NL ROHS NYLOK 4 12 1 For Hingle toBack cover 3 509412610 500R SCREW B CROSS T T 4 10 BLK ROHS...

Page 41: ......

Page 42: ...k F801 R808 R806 Change F801 R808 R806 Check the R pin voltage of IC803 about 2 5V Check R832 IC801 Check FB801 D803 C8 07 C810 if short Change FB801 D803 C807 C810 Check pin6 of IC802 voltage is 14V...

Page 43: ...Acer Acer LCD H243H 41 4 2 No raster...

Page 44: ...01 U102 Check C161 R183 Check X101 C156 C157 R191 Inverter Fail U104 fail Black Screen Check Q102 R101 R102 Check power supply For U104 Check reset pin 8 of U104 Check Crystal waveform Pin 25 26 of U1...

Page 45: ...er Acer LCD H243H 43 4 4 Bad Screen Bad Screen Check LVDS cable Change LVDS cable Check Crystal Pin 25 26 of U104 Workmanship LVDS cable NG Check the pins of U104 Change X101 C156 C157 OK OK OK NG NG...

Page 46: ...een Check LVDS Cable Insert OK Change LVDS Cable Check VLCD is 5V Check Panel Enable of U104 Check Q101 Q104 Q105 R105 R108 Check LVDS cable U104 Fail Workmanship LVDS cable NG Panel NG Q101 Q104 Q105...

Page 47: ...1P MALE 6FT BLACK 50 1 453010100380R CABLE D SUB 15P MALE 6FT BLACK BLUE ROH 50 1 453030300120R CABLE AUDIO 1P 6FT BLACK GREEN CP03B06P0 50 1 430303002230R HRN LVDS FFC 30P 166 5mm W TASTE 50 1 43030...

Page 48: ...Acer Acer LCD H243H 46 06 Schematics and Layouts 6 1 PI BD Layout...

Page 49: ...Acer Acer LCD H243H 47 6 2 Switching Mode Power Supply circuit...

Page 50: ...43H 48 7 0 Assembly and Disassembly The tool of Assembly and disassembly 1 Electrostatic gloves 2 Electric screwdriver the lengthe of screwdriver top is 6 0 5cm and 15 0 5cm the diameter of screwdrive...

Page 51: ...Acer Acer LCD H243H 49 Assembly and Disassembly continue...

Page 52: ...Acer Acer LCD H243H 50 Assembly and Disassembly continue...

Page 53: ...Acer Acer LCD H243H 51 Assembly and Disassembly continue...

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Page 55: ...Acer Acer LCD H243H 53 Assembly and Disassembly continue...

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