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20
N-50
1
2
3
4
A
B
C
D
E
F
1
2
3
4
5. DIAGNOSIS
5.1 TROUBLESHOOTING
No sound comes out.
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Neither optical
or coaxial digital sound
comes out.
IC104 (4, 10 pin)
Is the voltage
about 3.3V?
Check the pattern
between
IC104 - IC2501.
Check the pattern
between
IC104 – L2513.
No light comes out.
Check the pattern
between
IC104 - IC101.
Check the pattern
between
IC104 - JACK102.
No sound comes
out in any function.
No sound
comes out for Music Server,
Internet Radio, iPod
or USB.
Sound comes
out for Music Server and
Internet Radio, but no sound
comes out for iPod
and USB.
Sound comes
out for iPod and USB, but no
sound comes out for
Music Server and
Internet Radio.
No sound comes out
for iPod .
Check the pattern
around IC1506.
Is the signal detected
in the land of R1649(NM)?
Check the patterns
between
JA1502 - IC1506
and around IC1506.
Check the path
between
IC1504 - IC2501
(signal name: NWSPDIF).
Failure in
IC1504
Check the path
between
IC1504 - USB ASSY.
A
B
Analog sound
doesn’t come out.
Digital sound comes out.
Содержание Elite N-30
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