Sony RDR-VX521 - Page 105

7-9
VIDEO MISSING IN
RECORD MODE
IC301-21pin
VIDEO signal out?
NO DEFECT RECORD MODE
E-E mode and IC301-26pin
CHECK VIDEO signal out
NO
YES
IC301-22pin
VIDEO signal out?
CHECK C305
NO
YES
IC301-14pin
CHECK REC FM signal?
CHECK IC301-23pin Power
5Vp-p
NO
YES
IC301-70pin
REC FM signal in?
CHECK IC301-68pin Power
5Vp-p and R320
NO
YES
IC301-73pin (SP)
IC301-66pin (SLP)
CHECK REC FM signal?
CHECK drum wafen and
VIDEO head
NO
YES
(VCR Section)