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Troubleshooting
No Sound
Refer to Schematic Diagram or Chassis Block Diagram, find out the part of trouble.
In advance check the setting mode according to Instruction Manual.
Yes
No
No
Yes
All mode?
Check around IC031
in SUB CPU Unit.
D-SUB, AV4
No Sound from Headphone
Is there
sound signal from
monitor out
Check around IC1001
in Main Unit.
Check the line from IC1001
(Pin 52 or 54) in Main Unit to
IC121 via IC002, IC003, IC001
in SUB CPU Unit.
Check around IC1002 in Main Unit. Also check
the line from IC1001 to D-SUB or AV4 via IC1002.
Check the line from
IC1001 in Main Unit
to AV1, AV2 or AV3.
AV1, AV2, AV3
No Sound from Speaker
No Sound from Headphone,
Woofer & Speaker
Check around IC071
in SUB CPU Unit.
No Sound from Woofer
Check around IC004
in SUB CPU Unit.
Summary of Contents for PDP-42H1A
Page 31: ... 31 Main Scaler IC301 PW365 IC Block Diagrams Sync Separation IC8971 LA7217 T TRM ...
Page 32: ... 32 Sync Separation IC1201 BA7078AF IC Block Diagrams RGB Component Switch IC1123 24 BA7657F ...
Page 33: ... 33 Audio Video Switch IC1001 CXA1845Q IC Block Diagrams ...
Page 34: ... 34 Audio Control IC001 CXA2013N Q Sound IC002 MM1369BD IC Block Diagrams ...
Page 35: ... 35 BBE IC121 NJM2155M IC Block Diagrams Digital AMP IC071 TA1101B ...
Page 62: ... Memo ...
Page 63: ... Memo ...
Page 64: ...FEB 2002 335 Printed in Japan SANYO Electric Co Ltd ...