Hello all,
I have a Technics SE-A70 that I'm restoring. I have restored several other pieces, however this is the first piece that I'm having trouble with. I'm learning as I go.
The issues:
The amp was working(ok) but the main caps were leaking. So I did a complete recap. During the reassembly I somehow didn't install a mica insulator for one of the output transistor... This of course caused major problems. What I have done so far to fix it:
Parts replaced:
TH302
TH301
R364
R363
Q501
Q503
Q338
Q502
Q337
Q328-Q326(paired)
Q325-Q327(paired)
The following were all paired:
Q333
Q329
Q335
Q331
Q334
Q336
Q330
Q332
After all those parts were install I used my DBT to power the amp on. Shortly after power on the R364 resistor burned out again... So I have obviously missed something but what is the question? Any help/ideas on were to look will be greatly appreciated.
I have circled the resistor in the pic(pic was prior to recapping).
I have a Technics SE-A70 that I'm restoring. I have restored several other pieces, however this is the first piece that I'm having trouble with. I'm learning as I go.
The issues:
The amp was working(ok) but the main caps were leaking. So I did a complete recap. During the reassembly I somehow didn't install a mica insulator for one of the output transistor... This of course caused major problems. What I have done so far to fix it:
Parts replaced:
TH302
TH301
R364
R363
Q501
Q503
Q338
Q502
Q337
Q328-Q326(paired)
Q325-Q327(paired)
The following were all paired:
Q333
Q329
Q335
Q331
Q334
Q336
Q330
Q332
After all those parts were install I used my DBT to power the amp on. Shortly after power on the R364 resistor burned out again... So I have obviously missed something but what is the question? Any help/ideas on were to look will be greatly appreciated.
I have circled the resistor in the pic(pic was prior to recapping).
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