Sony RMT-V501D - Page 99

7-5
TURN THE VCR
POWER ON AND
INSERT A TAPE
PRESS EJECT BUTTON
CASSETTE LOADING
MECHANISM
DOES NOT OPERATE
TAPE DETECTED
CST IN MODE
IC601-87:HIGH(5V)
CHANGE IC601
CHECK
START SENSOR (S601)
IC601
CHECK
DM B
+
LINE
CHANGE IC610
NO NO
NO
YES
IC601-59:LOW(0V)
IC601-58:HIGH(5V)
IC610-59:HIGH(5V)
IC610-58:LOW(0V)
CHECK
CASSETT LOADING
MECHANISM
YES
YES
NO
CN604 8pin 12V?
YES
NO
YES
(VCR Section)
PLACE VCR IN STOP MODE
CHANGE IC301
CHECK TM BLOCK
LINE 2 INPUT
VIDEO MISSING IN
EE MODE
IC301-26
VIDEO OUT
NO
NO
NO
IC601-49, 50
VIDEO IN
YES
YES
0801-E
VIDEO OUT
YES
CHECK
R804
NO
CHECK
C832, R805
NO
NO
TM VIDEO
IN PIN 5
CHECK
IC601
NO
IC301-53,54
VIDEO DATA/
CLOCK
YES
YES
CHECK OSD PICTURE
CHECK IC801, Q801
CHECK
R638, C626,
C622
NO
IC601-50
SYNC IN
YES
CHECK
LINE OUT
(VCR Section)