Sony RDR-VX500 Service Manual page 112

VIDEO MISSING IN
(VCR Section)
RECORD MODE
NO
IC301-21pin
E-E mode and IC301-26pin
VIDEO signal out?
CHECK VIDEO signal out
YES
NO
IC301-22pin
CHECK C305
VIDEO signal out?
YES
IC301-14pin
NO
CHECK IC301-23pin Power
CHECK REC FM signal?
5Vp-p
YES
IC301-70pin
NO
CHECK IC301-68pin Power
REC FM signal in?
5Vp-p and R320
YES
IC301-73pin (SP)
NO
CHECK drum wafen and
IC301-66pin (SLP)
VIDEO head
CHECK REC FM signal?
YES
NO DEFECT RECORD MODE
VIDEO MISSING IN
(VCR Section)
PLAY MODE
NO
SEE PAGE 7-5
VIDEO EE MODE
(VIDEO MISSING IN EE MODE)
OPERATION
YES
PLACE THE VCR PLAY MODE
NO
H'D SW
VIDEO FM
IC301-57
IC301-14
YES
YES
NO
VIDEO CHECK
C305
IC301-22
YES
YES
VIDEO VIDEO
IC301-26 IC601-49, 47
NO NO
CHANGE IC301 CHECK IC601
NO
CHECK
IC601-23
CHECK
VIDEO HEAD
YES
CHECK VIDEO
VIDEO
OUT LINE
IC801-8
NO
CHECK IC801