Pioneer SC-37 Service Manual page 42

1
QQ
B
3 7 63 1515 0
IC9018 (Pin 2)
A
Is there No
a signal?
Yes
IC9018 (Pins 5,6)
Are there No
signals?
B
Yes
IC9019 (Pin 2)
IC9018 (Pin 3)
No
Are there
signals?
Yes
IC9019 (Pin 4)
C
IC9013 (Pin 13)
No Check the IC9019 and its
Are there
signals?
TE
L 13942296513
Yes
IC9003 (Pins 89,134)
IC9013 (Pin 11)
D
No
Are there
signals?
Yes
IC9013 (Pin 5)
No Check the IC9013 and its
Is there
a signal?
Yes
(*A)
E
IC9013 (Pin 6)
IC9003
(Pins 90,91,125,135,136)
No
Are there
signals?
www
Yes
SC-37,SC-LX83
SC-35,SC-LX73
F
42
1
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2
Check the patterns between
IC9018 (Pin 2) and IC9010 (Pin 5).
Check the IC9018 and its
peripheral circuits.
Check the patterns between
IC9018 (Pin 6) and IC9019 (Pin 2).
peripheral circuits.
Check the patterns between
IC9013 (Pin 13) and IC9018 (Pin 3).
Check the patterns between
IC9019 (Pin 4) and IC9003 (Pins 89,
134). Check the IC9013 and its
periphera circuits.
peripheral circuits.
D2MCK,D2BCKI,D2LRCKI,
D2FDTI
Check the IC9013,IC9003 and its
peripheral circuits.
x ao
y
. i
2
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3
SC-37,SC-LX83
8
IC9202
(Pins 2,131,139,141)
Are there
signals?
Yes
IC9202
(Pins 113,142,144)
Are there
signals?
Yes
SC-35,SC-LX73
IC9015 (Pins 5,11,14)
Are there
signals?
Yes
IC9013 (Pin 8)
Q Q
IC9015 (Pins 7,9,12)
3 6 7 1 3
Are there
signals?
Yes
CN9302 (Pins 4,7,8,10)
Are there
signals?
Yes
To Step 1-7
u163
.
SC-37
3
4
2 9 9 4 2 8
D2MCK,D2BCKI,D2LRCKI,
D2FDTI
No
Check the patterns between
IC9013 (Pin 6),IC9003 (Pins 90,
91,125,135,136) and
IC9202 (Pins 2,130,138,140).
D2BCKO,D2LRCKO,D2FDTO
No
Check the IC9202 and its
peripheral circuits.
SC-37,SC-LX83 only
D2BCKO,D2LRCKO,D2FDTO
Check the patterns between
No
IC9015 (Pins 5,11,14) and
IC9202 (Pins 133,142,144).
F
DAMCK,FBCK,FLRCK,
FADA
1 5 0 5 8 2 9 9 4
Check the IC9013,IC9015 and
No
its peripheral circuits.
(DSPPASS Signal= Low)
A
DAMCK,FBCK,FLRCK,
FADA
No
Check the signals between
CN9302 (Pins 4,7,8,10) and
IC9013 (Pin 8),IC9015 (Pins 7,9,12).
m
co
4
9 9
2 8 9 9