Sanyo DP23625 Service Manual page 39

NO AUDIO
All Modes ?
No
Yes
Is there
signal at speaker
terminal ?
No
Is there
signal at IC001 2pin (L)
or 4pin (R) ?
No
Monitor Out only
RF(TV) only
Check:
AV1
Line:
or
AV1 Terminal - IC3001 30pin (L)
AV1 Terminal - IC3001 1pin (R)
AV2
AV2 Terminal - IC3001 29pin (L)
or
AV2 Terminal - IC3001 2pin (R)
AV3 Terminal - IC3001 28pin (L)
AV3
AV3 Terminal - IC3001 3pin (R)
Check:
Speaker (SP901, SP902)
Yes
Check:
Line: IC001 1pin - Q002(C) - IC801 (CPU) 14pin (Mute)
Parts: Around IC001 (Audio AMP.), Q002
Yes
Check:
Parts: Around IC3001 (Audio SW, Control, Surround)
Check:
Line:
IC3001 26pin (L) - Q3011(E) - Monitor Out Terminal
IC3001 5pin (R) - Q3012(E) - Monitor Out Terminal
IC801 (CPU) 8pin - Q3031(L) / Q3032(R) (Mute)
Parts: Q3011, Q3012, Q3031, Q3032
Check:
Line:
A201 6pin - IC3001 27pin (L)
A201 7pin - IC3001 4pin (R)
Parts: A101 (TU, IF, Sound Multiplex)
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