Sony RDR-VX500 Service Manual page 117

(VCR Section)
NO SERVO LOCK
PLAY
NO
CHECK
IC601-68
CN604-1
C-FG
YES
NO
IC601-76
CTL PULSE
YES
CHECK
NO
CTL PULSE AC
CHECK
LEVEL (SP. SLP:
A/CE HEAD
OVER 1Vp-p)
YES
CHANGE
IC601
CAPSTAN DOES
(VCR Section)
NOT ROTATE
NO
CHECK
CN604-2
B+ IN THE POWER BLOCK
15V
YES
NO CHECK
CN604-3
5V AT AL5V LINE
AL 5V
IN THE POWER BLOCK
YES
PLACE THE VCR
IN PLAY MODE
NO
CN604-9 IC601-35
3.2V OUTPUT(PWM)
YES YES
CHECK R607
NO
CN601-33
CN604-5
OUTPUT(PWM)
2.6V
YES YES
CHECK CHECK
CAPSTAN MOTOR R615, C606, R671
NO
CHANGE
IC601
NO
CHECK
IC601