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LCD TV Service Manual 
Hisense Confidential
 
7.4 Troubleshooting for Audio 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
No sound 
Check connecter 
Check speaker wire 
Replace main board 
Reconnect 
Replace speaker wire 
YES 
YES 
NO 
NO 
Check speaker set 
Replace speaker set 
YES 
NO 
OK 
YES 
NO 
Replace PSU