Sony RDR-VX500 Service Manual page 105

CASSETTE LOADING
MECHANISM
(VCR Section)
DOES NOT OPERATE
TURN THE VCR
POWER ON AND
INSERT A TAPE
NO NO
CST IN MODE
TAPE DETECTED
IC601-87:HIGH(5V)
YES YES
NO
PRESS EJECT BUTTON
CN604 8pin 12V?
YES
YES
IC601-59:HIGH(5V)
IC601-58:LOW(0V)
NO
CHECK
YES
IC601-59:LOW(0V)
CASSETT LOADING
IC601-58:HIGH(5V)
MECHANISM
NO
CHANGE IC601
CHECK
START SENSOR (S601)
IC601
CHECK
DM B + LINE
CHANGE IC610
VIDEO MISSING IN
(VCR Section)
EE MODE
PLACE VCR IN STOP MODE
LINE 2 INPUT
IC301-53,54
NO
NO
IC301-26
VIDEO DATA/
VIDEO OUT
CLOCK
YES
YES
CHANGE IC301
NO NO
IC601-50
IC601-49, 50
VIDEO IN SYNC IN
YES
YES
CHECK OSD PICTURE
NO
Q801-E
CHECK IC801, Q801
VIDEO OUT
YES
CHECK LINE OUT and
C830, R804, AB03, R816
CHECK
IC601
CHECK
R638, C623,
C622