Repairing a amplifier need assistance .

Thread Starter

Mr.oaktree

Joined Dec 10, 2014
68
so i thought maybe just maybe the new chips may just have come defective or be fakes .... so i re placed both with 100 watt of same pin out . and r2-23 blew out as a result . did last about 3x as long though . heres the stats on those chips
 

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Thread Starter

Mr.oaktree

Joined Dec 10, 2014
68
oh and i forgot to mention that 2sc3281 and 2sa1302 are chips already in use on the opposite channel thats why i orderd them as replacements cause existing ones operate just fine in other channel
 

Thread Starter

Mr.oaktree

Joined Dec 10, 2014
68
ok so i got it running .... now my only issue is is a fair amount of exsessive heat from2-11 and r2-12 the resistors show the heat dmg as well . my question is this , the schematics call for a 2watt res , but can i up that to a 5 watt for r2-11 and r2-12 or would it not be wise ??
 
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