
35
5. Power Board
1) No power
Check bridge rectified circuit and F901 circut
1) Check IC901
2) Check R909/D901 circuit
Check CN902 pin4, 5 = 14V
Check start voltage for the pin8 of IC901
Check R904, R932, R933, and Change IC901
Check the auxiliary voltage is bigger than
10V and smaller than 20V
Check Q901, IC903, D905, D906, D907, ZD921, ZD922
Check IC901
NG
NG
OK
Check AC line volt 110V or 220V
Содержание B203H
Страница 1: ...1 Acer B203H Service Guide h t t p w w w w j e l n e t ...
Страница 10: ...10 LCD Panel Specification General Specifications Block Diagram TFT LCD Module h t t p w w w w j e l n e t ...
Страница 11: ...11 Back light Unit Electrical Characteristics h t t p w w w w j e l n e t ...
Страница 12: ...12 Optical Specifications h t t p w w w w j e l n e t ...
Страница 13: ...13 Support Timing h t t p w w w w j e l n e t ...
Страница 20: ...20 Screen Position Adjustment h t t p w w w w j e l n e t ...
Страница 21: ...21 h t t p w w w w j e l n e t ...
Страница 23: ...23 eColor Management OSD h t t p w w w w j e l n e t ...
Страница 24: ...24 How to Adjust a Setting h t t p w w w w j e l n e t ...
Страница 25: ...25 Adjusting the picture h t t p w w w w j e l n e t ...
Страница 26: ...26 h t t p w w w w j e l n e t ...
Страница 30: ...30 FOR THE V203H AUDIO MODLE 5 The panel h t t p w w w w j e l n e t ...
Страница 37: ...37 Connector Information Chapter 5 h t t p w w w w j e l n e t ...
Страница 41: ...41 4 Power Board 5 Main Board 6 Audio Board B203H AUDIO h t t p w w w w j e l n e t ...
Страница 42: ...42 Schematic Diagram Main Board Chapter 7 h t t p w w w w j e l n e t ...
Страница 43: ...43 h t t p w w w w j e l n e t ...
Страница 44: ...44 h t t p w w w w j e l n e t ...
Страница 45: ...45 h t t p w w w w j e l n e t ...
Страница 46: ...46 Power board h t t p w w w w j e l n e t ...
Страница 47: ...47 h t t p w w w w j e l n e t ...
Страница 48: ...48 Audio board for B203H AUDIO h t t p w w w w j e l n e t ...