Troubleshooting Flow Charts; Digital - Sanyo DP42848 Service Manual

TROUBLESHOOTING FLOW CHARTS (CONT.)
NO AUDIO
All Modes ?
No
Yes
Is there
signal at IC001 3pin (L)
or 5pin (R) ?
No
Monitor Out only
RF(TV), Digital(TV)
only
AV1, AV2, AV3
only
AV1 or AV2or AV3
HDMI 1 / 2 / 3
Is there
signal at speaker
terminal ?
No
Check:
Line: IC001 7pin - IC800 (CPU) 22pin (Mute)
Yes
Parts: Around IC001 (Audio AMP.)
Check:
Parts: Around IC3200 (Audio Control)
Check:
Line:
IC3200 5pin (L) - Monitor Out Terminal
IC3200 28pin (R) - Monitor Out Terminal
Parts: Q1006, Q1007
Check:
Line:
A6100 21pin - IC5500 AK19pin (IF1)
A6100 20pin - IC5500 AK20pin (IF2)
Parts: Around A6100(TU), IC5500
Check:
Line:
IC1251 3pin - IC6270 16pin (R),
IC1251 13pin - IC6270 19pin (L),
Parts: Around IC1251 (Audio SW),
IC6270 (Audio ADC)
Check:
Line:
AV1 Terminal - IC1251 14pin (L), 5pin (R)
AV2 Terminal - IC1251 15pin (L), 2pin (R)
AV3 Terminal - IC1251 11pin (L), 4pin (R)
Check:
Line:
HDMI1 Terminal - IC5500
HDMI2 Terminal - IC5500
HDMI3 Terminal - IC5500
Parts: Around IC5500
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Check:
Speaker (SP901, SP902)
Yes