27
29A-SX1
29A-SX5
29A-SX8
No
Yes
Yes
No
Is there audio
signal at pins
(5), (6) of
IC401?
Check IC401
and its
peripheral
circuit.
Check
TU200
peripheral
parts.
Check TU200
and its
peripheral
circuits of no
problem, set
the sound
system
inpositon.
TROUBLE SHOOTING TABLE (Continued)
NO NORMAL SOUND
Is audio output terminal J401
normal.
Yes
Yes
No
No
TV sound.
Is there audio signal at pins (6), (25)
of IC300?
Change the sound system.
Is sound normal?
Check IC401
peripheral
parts.
Is there audio signal
at pin (9) of IC1300
and IC1301?
No
No
Yes
Check IC300.
Yes
Check IC1300,
IC1301 and their
peripheral parts.
Set S-Volume at
maximum.
Do pins (15), (18)
of IC300 work?
Check IC302,
IC305, IC303, IC304
and their peripheral
circuit.
(model A-SX8
and A-SX5)
Check NICAM
unit peripheral
circuit.
Summary of Contents for 29A-SX1
Page 31: ...31 29A SX1 29A SX5 29A SX8 WAVEFORMS ...
Page 32: ...32 29A SX1 29A SX5 29A SX8 CHASSIS LAYOUT ...
Page 33: ...33 29A SX1 29A SX5 29A SX8 ...
Page 34: ...34 29A SX1 29A SX5 29A SX8 BLOCK DIAGRAM MAIN UNIT BLOCK DIAGRAM ...
Page 35: ...35 29A SX1 29A SX5 29A SX8 ...
Page 37: ...37 29A SX1 29A SX5 29A SX8 ...
Page 41: ...41 29A SX1 29A SX5 29A SX8 A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 CRT UNIT ...
Page 43: ...43 29A SX1 29A SX5 29A SX8 10 11 12 13 14 15 16 17 18 19 ...
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Page 70: ...70 29A SX1 29A SX5 29A SX8 M E M O ...
Page 85: ...Ref No Part No Description Code Ref No Part No Description Code 85 29A SX1 29A SX5 29A SX8 ...