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Sansui au-505

T

TinRev

New Member
Hello,
Recapped my 505 , tried to adjust the bias and shorted (1.5 A fuse blown) the ceramic resistor R846 - 0.47ohm - 2 watt smoked a bit( after replacing the fuse) , seems difficult to find a replacement ( europe) also do I replace both sides ( R845) or leave it at that?
Would be great if I get some advice on this.

Regards, Tin
 
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^ what pete said.
Suggest diode test the output and driver transistors using diode function on your multimeter.
Report what's blown so the guys can work out what else may be blown, need to replace all faulty
parts before power up, use a DBT.
 
I think I found it 1 NEC 2SD188 shorted, all other 3 are returning values.
Also checked the rest of the board which return similar values
So looking for 1 NEC 2SD188 replacement. what is the best practice here, replace all 4 or just the faulty one?
 
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