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
IC601-82:HIGH(5V)
IC601-87:LOW(0V)
CHANGE IC601
CHECK
START/END SENSOR
IC601
CHECK
DM B
+ LINE
CHANGE CAPSTAN MOTOR
NO
NO
NO
YES
IC601-58 (0V)
IC601-58 (5V)
CHECK
CASSETT LOADING
MECHANISM
YES
YES
NO
CN604-8 (12.5V)
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
NO
(PLAY MODE)
NO
YES
CAP F/R
IC601-46
HIGH
(SEARCH MODE)
YES
NO
LOW
CHECK IC601
H'D AMP/ENV COMP.
CHECK CAPSTAN
MOTOR
NOISE BAR
LOCKING
ADJUST
A/CE HEAD
NO
(CONTROL PULSE)
IC601-76
NO
YES
YES
YES
(VCR Section)
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TEL 13942296513 QQ 376315150 892498299