Service manual

Troubleshooting
5-5Samsung Electronics
TURN THE VCR POWER ON AND INSERT A TAPE PRESS EJECT BUTTON
CASSETTE LOADING
MECHANISM
DOES NOT OPERATE
TAPE DETECTED
CST IN MODE
IC601-38:HIGH(5V)
IC601-39:LOW(0V)
CHANGE IC601
CHECK
START/END SENSOR (S601/S602) IC601 CHECK LM B
+
LINE
CHANGE IC602
NO NO
NO
YES
IC601-39:LOW(0V)
IC601-38:HIGH(5V)
IC602-5:HIGH(5V)
IC602-6:LOW(0V)
CHECK CASSETT LOADING MECHANISM
YES
YES NO
IC602-8:10V
YES NO
YES
(VCR Section)
REV. SEARCH DOESN'T
OPERATE
PLAY
OPERATION
PRESS REWIND BUTTON FOR REV. SEARCH
CHECK CAP F/R LINE
IS CAPSTAN
SPEED CHANGED?
SEARCH
OPERATION
FWD SEARCH
END
CHECK IC601
CHANGE DECK
CHANGE IC601
SEE (PLAY DOESN'T OPERATE)
NO
(PLAY MODE)
NO
YES
CAP F/R
IC601-25
HIGH
(SEARCH MODE) YES NO LOW
CHECK IC601
CHECK CAPSTAN
MOTOR
NOISE BAR
LOCKING
ADJUST A/CE HEAD
NO
(CONTROL PULSE)
IC601-89
NO
YES
YES
YES
(VCR Section)