Hitachi DV-P505E, Service Manual

Page: 22 / 58

16 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 I C 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
No
No
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 1
pins 26,27,31,32?
Yes
C H E C K Q 2 2 0 2 / Q 2 2 0 3 /
Q 2 2 0 4 / Q 2 2 0 5 / Q 2 2 0 6
No
A R E S I G N A L S
IC2201
pins 15,16,17,
23,24?
No
C H E C K I C 1 2 0 1
Yes
+5V AT IC2201
pins 1,11,20,28,30,
37 (VDD)?
No
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
IC2201 pin 22
( R E S E T ) H L E V E L ?
No
C H E C K I C 1 2 0 1
Yes
IS CLOCK IN
IC2201 pin 44?
No
C H E C K X 1
Yes
R E P L A C E I C 2 2 0 1