Read Sony SLV-D990PB / SLV-D990PE / SLV-D990PR / SLV-D995PE Service Manual online
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
IC601-75:HIGH(5V)
CHANGE IC601
CHECK
START SENSOR (S602)
IC601
CHECK
DM B
+ LINE
CHANGE IC601
NO
NO
NO
YES
IC601-38 : LOW(0V)
IC601-39 : HIGH(5V)
IC601-38 : HIGH(5V)
IC601-39 : 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
TUNER MODE OPERATION
VIDEO MISSING IN
EE MODE
IC301-61
VIDEO OUT
NO
NO
NO
IC802-13
VIDEO IN
YES
YES
IC802-14
VIDEO OUT
YES
CHECK
Q811, R844
NO
CHECK
C355
NO
NO
IC301-48
CHECK
IC601
NO
IC301-68 ; CLOCK
69 ; DATA VIDEO
YES
YES
CHECK IC802
CHECK
IC802
CHECK
LINE OUT
(VCR Section)
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