Pioneer SC-37 Service Manual page 47

5
QQ
E
3 7 63 1515 0
R129,131,133,135
Are there
signals?
Yes
IC1810 (Pins 3,6,10,13)
Are there
signals?
Yes
IC1810 (Pins 4,7,9,12)
Are there
signals?
Yes
IC1811 (Pins 2,5,11,14)
Are there
signals?
Yes
TE
L 13942296513
IC1811 (Pins 4,7,9,12)
Are there
signals?
Yes
To Step 1-11 or Step1-12
F
IC1805 (Pin 11)
Is there
a signal?
Yes
CN9302 (Pin 30)
Is there
a signal?
www
Yes
.
To Step 1-11 or Step 1-12
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EMMCK,EMBCK,EMLRCK,EMADAT
No
Check the patterns between
R129,R131,R133,R135 and IC101.
EMMCK,EMBCK,EMLRCK,EMADAT
No Check the patterns between
IC1810 (Pins 3,6,10,13) and
R129,R131,R133,R135.
No Check the IC1810 and its
peripheral circuits.
(USBSW signal: High)
No Check the patterns between
IC1811 (Pins 2,5,11,14) and
IC1810 (Pins 4,7,9,12).
No Check the IC1811 and its
peripheral circuits.
(HDI2S signal: Low)
I
MSPDIF
No Check the IC1805 and its
peripheral circuits.
(XEMSPDIF signal: Low)
MSPDIF
No Check the patterns between
CN9302 (Pin 30) and IC1805 (Pin 11).
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Step 1-11: H.M.G
2 9
8
* The link with the source equipment (PC, NAS etc.) should be
provided.
IC9503 (Pin 39)
Is there
a signal?
Yes
IC1805 (Pin 5)
Is there
a signal?
Yes
IC1805 (Pin 6)
Is there
a signal?
Yes
CN9302 (Pin 30)
Is there
a signal?
Q Q
3 6 7 1 3 1 5
Yes
To Step 1-13
co
.
SC-37
7
8
9 4 2 8
NETSPDIF
No Check the IC9503 and its
peripheral circuits.
NETSPDIF
No Check the patterns between
IC1805 (Pin 5) and IC9503 (Pin 39).
MSPDIF
No Check the IC1805 and its
peripheral circuits.
MSPDIF
No Check the patterns between
CN9302 (Pin 30) and IC1805 (Pin 6).
0 5 8 2 9 9 4 2 8
J
SC-37,SC-LX83 only
m
8
9 9
A
B
C
9 9
D
E
F
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