Sony SLV-D300P (serv.man3) Service Manual ▷ View online
7-9
(VCR Section)
VCR STOP MODE
AUDIO MISSING IN
EE MODE
IC501-9, 10,
14, 15pin Audio
signal input
INPUT CHOICE
MODE
CHECK C529
CHECK IC601
CHECK
R619, R620 R627, R626
L1/L2
NO
NO
Change IC501
NO
CHECK
C815, C821
R801, R802
TUNER
YES
YES
YES
YES
IC501-53, 57 pin
AUDIO SIGNAL
CHECK
IC501-42, 43pin
IC501-48pin
AUDIO SIGNAL
INPUT
IC801-14, 15pin
AUDIO SIGNAL
YES
NO
(VCR Section)
Check IC801
NO
MISSING AUDIO
IC501-53, 57
AUDIO SIGNAL
IC501-21
AUDIO FM
CHECK CYLINDER
CHANGE
IC501
CHECK
L504, C512 CHANGE IC501
CHECK
AUDIO MISSING
IN EE MODE
AUDIO MISSING IN
REC MODE
MONO
HIFI
MONO
NO
NO
YES
YES
(VCR Section)
7-10
CHECK
Q304, Q305, C354
CHECK
R331
CHANGE
IC301
IC301-76
AUDIO SIGNAL
IC501-62
AUDIO SIGNAL
NO
NO
NO
IC301-53, 54
CHECK (CLOCK, DATA)
CHECK
C542, R517, R518
YES
NO
NO
NO
YES
YES
YES
YES
YES
YES
CHECK
IC301-58, 59 AND CHANGE IC301
CHANGE IC501
IC301-10
AUDIO SIGNAL
IC301-9
AUDIO FM SIGNAL
IC301-7
MIX SIGNAL
(AUDIO
+ 70KHz)
Q304
OSCILLATION
NO
CHECK AUDIO MISSING
IN PB MODE
CHECK
PB MODE
CHECK
A/CE HEAD
MONO
NO
CHECK "AUDIO
MISSING IN EE MODE"
PLACE THE VCR IN PB MODE
CHANGE
IC501
AUDIO MISSING
IN PB MODE
CHECK C349, R333 or
CHANG IC301
CHECK ACE HEAD
C353, C348, R332
AND CHANGE IC301
AUDIO SELECT
IC501-22, 24
AUDIO FM(MIXED)
CHECK
IC501-27(A.H D SW)
CHANGE CYLINDER OR
IC501
NO
HIFI
MONO
YES
IC301-6
AUDIO SIGNAL
NO
YES
(VCR Section)
7-11
PLAY
NO SERVO LOCK
IC601-68
C-FG
IC601-76
CTL PULSE
CHECK
CTL PULSE AC
LEVEL (SP. SLP:
OVER 1Vp-p)
CHANGE
IC601
CHECK
A/CE HEAD
CHECK
CN604-1
NO
NO
NO
YES
YES
YES
(VCR Section)
CAPSTAN DOES
NOT ROTATE
PLACE THE VCR
IN PLAY MODE
CN604-2
15V
CN604-3
AL 5V
CN604-9
3.2V
CN604-5
2.6V
CN601-33
OUTPUT(PWM)
IC601-35
OUTPUT(PWM)
CHECK
CAPSTAN MOTOR
CHECK
R615, C606, R671
CHECK R607
CHANGE
IC601
CHECK
IC601
CHECK
B+ IN THE POWER BLOCK
CHECK
5V AT AL5V LINE
IN THE POWER BLOCK
NO
NO
NO
NO
YES
NO
YES
NO
YES
YES
YES
YES
(VCR Section)
7-12
DRUM DOES
NOT ROTATE
CN604-6
12V
CN604-3
5V
CN604-12
2.5V
CHECK
CYLINDER MOTOR
CN601-34 PWM OUT
CHECK 5V LINE
CHECK
12V AT PC12V LINE
IN THE POWER BLOCK
NO
NO
NO
YES
YES
YES
CHANGE IC601
NO
CHECK
R631, R617, R618, C609, C610
(VCR Section)
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