22
Chapter 1
Troubleshooting
VIDEO CIRCUIT
N O I M A G E
A R E S I G N A L S
O U T P U T F R O M V I D E O
O U T P U T T E R M I N A L ?
Yes
C H E C K S I G N A L
C A B L E / M O N I T O R
A R E S I G N A L S
O U T P U T F R O M P G 2 2 0 1
pins 17,15,13,11,9,7,3
?
Yes
C H E C K V I D E O O U T P U T
S E C T O R ( P G 1 3 0 2 / J 1 3 0 7 /
J1302/J1306/J1361) OF
R J K P w B
N o
N o
A R E S I G N A L S
O U T P U T F R O M I C 2 2 0 2
pins 35,33,29,28,
25,24 ?
Yes
C H E C K Q 2 2 0 6 / Q 2 2 0 7 /
Q 2 2 0 8 / Q 2 2 0 9 / Q 2 2 1 0 /
Q 2 2 1 1 / Q 2 2 1 2
N o
A R E S I G N A L S
IC2202
pins 14,15,16,
20,21 ?
N o
CHECK IC1201/IC1101/
IC1601
Yes
+5V AT IC2202
pins 46,34,32,30,27,
19,11,1 (VDD)?
N o
C H E C K P O W E R
S U P P L Y C I R C U I T
Yes
I S V O L T A G E A T
IC2202 pin 44
( R E S E T ) H L E V E L ?
N o
C H E C K I C 1 6 0 1
Yes
IS CLOCK IN
IC2202 pin 48 ?
N o
C H E C K X 2 2 0 1 / R 1 2 1 8
Yes
R E P L A C E I C 2 2 0 2
Содержание DV-P250A
Страница 9: ...6 Chapter 1 Rear Panel ACER DVD 5500 ACER DVD 5300 ...
Страница 10: ...Chapter 1 7 Acer DVD 5100 Hitachi DV P250E ...
Страница 29: ...26 Chapter 1 ...
Страница 40: ...Appendix A 37 DEC Board A side Schematics Appendix A ...
Страница 41: ...Appendix A 38 DEC Board B side ...
Страница 42: ...Appendix A 39 RJK Board A side ...
Страница 43: ...Appendix A 40 RJK Board B side ...
Страница 44: ...Appendix A 41 FSW MVR FJK Board A side ...
Страница 45: ...Appendix A 42 FSW MVR FJK Board B side ...
Страница 47: ...Appendix A 44 Exploded Diagram ...
Страница 49: ...FSW PWB MVR PWB FJK PWB ...