Bush A626N Service Manual page 26

No Sound
Check the source
OK
Check if mute
OK
Check input signal
OK
Check U400
OK
Check U600
OK
Check speaker
No Power (No LED Indicator)
Check power cord and board interface
Check F901, BD901, C910 Check F901, BD901, C905
Check IC901, IC902, IC950, IC951
NG
Reset source
TV SIF
OK
Check TU501
NG
Change U400
NG
Change U600
NG
Change speaker
OK OK
OK OK
OK OK
NG
Check IC801
OK
NG
Check T801
Check TV system
NG
Change TU501
NG
Plug in power cord and interface
NG
Replace F901, BD901, C910
NG
Replace IC901, IC902, IC950, IC951
Replace IC801
Replace T801
26
NG
Reset TV system