H243 LCD Monitor Service Guide
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Acer H243H Service Manual 1 Ltd All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of Contents Important Safety Notice 02 01 Product Specification 03 02 Flat Panel Specification 15 03 Exploded Diagram 36 04 Troubleshooting ...37 05 Spare Parts List 42 06 Schematics and Layouts 43 07 Assembly and Disassembly 46 Appendix : User's manual Copyright Copyright 2006 InnoLux Tech. Corp. Corp. Ltd. 1 Table of InnoLux Tech.
Acer H243H Service Manual 1 Ltd All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of Contents Important Safety Notice 02 01 Product Specification 03 02 Flat Panel Specification 15 03 Exploded Diagram 36 04 Troubleshooting ...37 05 Spare Parts List 42 06 Schematics and Layouts 43 07 Assembly and Disassembly 46 Appendix : User's manual Copyright Copyright 2006 InnoLux Tech. Corp. Corp. Ltd. 1 Table of InnoLux Tech.
H243 LCD Monitor Service Guide
Page 42
Acer Unstable power 04 Troubleshooting 4.1 No Power & LED Off Acer -LCD-H243H Check sampling Circuit Check the R pin voltage of IC803 about 2.5V yes NG NG Check F801, R808,R806 NG Check the C pin voltage of IC803 if 3V Change F801, R808,R806 NG Change IC803 Check R832,IC801 Check pin6 of IC802 NG voltage is 14V yes Check FB801,D803,C8 07,C810 if short yes Change FB801,D803,C807, C810 Check pin2 of IC802 voltage above 0.85V yes NG Change R815, R 809, R848, R 849, R850,R851,C809, END 40
Acer Unstable power 04 Troubleshooting 4.1 No Power & LED Off Acer -LCD-H243H Check sampling Circuit Check the R pin voltage of IC803 about 2.5V yes NG NG Check F801, R808,R806 NG Check the C pin voltage of IC803 if 3V Change F801, R808,R806 NG Change IC803 Check R832,IC801 Check pin6 of IC802 NG voltage is 14V yes Check FB801,D803,C8 07,C810 if short yes Change FB801,D803,C807, C810 Check pin2 of IC802 voltage above 0.85V yes NG Change R815, R 809, R848, R 849, R850,R851,C809, END 40