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EADGBE EADGBE is offline
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Default QUESTION: Nakamichi TA-4A Stasis Receiver - NO OUTPUT

Hello All:

I found a Nakamichi TA-4A Receiver at a thrift store, and I am
attempting to repair it. I can't find the service manual, so I thought
I would ask around to see what the problem might be, before I start
digging into it. (NOTE: This is a STASIS model receiver with quasi-
class A circuitry licensed from Threshold, so it's worth fixing!)

When I got the TA-4A home, I discovered that even though it powered up
fine, there was no audio output at all - none through the speaker
outputs and none through the headphone jack.

When you click the various buttons for Tuner/CD/Phono/Tape, etc., you
do hear a VERY faint click through the headphones, but absolutely NO
sound other than that. You can turn the Volume all the way up and
still hear no hum or noise of any kind.

I have taken off the top cover and discovered that the PC board where
the speaker terminals are soldered has cracked into three pieces!

Needless to say, I have to repair the speaker connections here, BUT
HERE IS MY QUESTION: Why is there no output even through the
Headphones jack? Is the headphone signal routed through the speaker
terminal PC board in some way?

ALL internal fuses are OK, by the way...I checked them.

Any help will be MUCH appreciated. THANKS IN ADVANCE.....

 
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