Sanyo DP26640 Troubleshooting Manual page 36

TROUBLESHOOTING FLOW CHARTS
NO AUDIO
All Modes ?
No
Yes
Is there
signal at IC001 7pin (L)
or 3pin (R) ?
No
Monitor Out only
RF(TV), Digital(TV)
only
AV1 or AV2or AV3
or PC
HDMI 1 / 2
Is there
signal at speaker
terminal ?
No
Check:
Line: IC001 1pin - IC800 (CPU) 22pin (Mute)
Yes
Parts: Around IC001 (Audio AMP.)
Check:
Parts: Around IC6270 (Audio Control)
Check:
Line:
IC6250 7pin (L) - Monitor Out Terminal
IC6250 1pin (R) - Monitor Out Terminal
Parts: Q1007, Q1008
Check:
Line:
A6100 21pin - IC5500 AE2pin (IF1)
A6100 20pin - IC5500 AF2pin (IF2)
Parts: Around A6100(TU), IC5500
Check:
Line:
AV1 Terminal - IC5500 M1pin (L), M2pin (R)
AV2 Terminal - IC5500 L1pin (L), L2pin (R)
AV3 Terminal - IC5500 K1pin (L), K2pin (R)
PC Terminal - IC5500 J1pin (L), J2pin (R)
Check:
Line:
HDMI1 Terminal - IC5500
HDMI2 Terminal - IC5500
Parts: Around IC5500
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(continued)
Check:
Speaker (SP901, SP902)
Yes