Sanyo DP32647 Service Manual page 40

TROUBLESHOOTING FLOW CHARTS (Cont.)
NO AUDIO
All Modes ?
No
Yes
Is there
signal at IC001 2pin (L)
or 4pin (R) ?
No
Audio Out only
RF (TV) only
Digital (TV) only
AV1, AV2, AV3 only
AV1
or AV2
or AV3
HDMI 1 / 2
— 40 —
Is there
signal at speaker
terminal ?
Yes
No
Check:
Line: IC001 6pin - IC801 (CPU) 38pin (Mute)
Yes
Parts: Around IC001 (Audio AMP.)
Check:
Parts: Around IC3200 (Audio Control)
Check:
Line:
IC3200 5pin (L) - Audio Out Terminal
IC3200 28pin (R) - Audio Out Terminal
Parts: Q1006, Q1007
Check:
Line:
A6100 3pin - Q6100 - IC6250 1pin (SIF)
IC6250 22pin - Q6251 - IC1251 1pin(R)
IC6250 23pin - Q6250 - IC1251 12pin(L)
Parts: Around A6100(TU), IC6250, Q6250, Q6251
Check:
Line:
A6100 21, 20pin - IC6100 93, 94pin (IF)
IC5500 N4, U1pin - IC6300 5, 6pin (R),
IC5500 T1, T2pin - IC6300 3, 2pin (L),
IC6300 7pin - IC3200 31pin (R),
IC6300 1pin - IC3200 2pin (L),
Parts: Around A6100(TU), IC6100,IC5500,IC6300
Check:
Line:
IC1251 3pin - IC6270 7pin (R),
IC1251 13pin - IC6270 8pin (L),
IC6270 2pin - IC5500 P4pin,
Parts: Around IC1251 (Audio SW),
IC6270 (A/D Converter), IC5500
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 - IC6502
HDMI2 Terminal - IC6502
IC6502 21~40pin - IC5500 A1, B2,
C1~C3, D1~D2, E1~E3, F2~F3
Parts: Around IC6502, IC5500, IC6551
Check:
Speaker (SP901, SP902)