Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

 
 
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Jerry G.
 
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Default Amplifier riddle, intermittent loss of output

This may be the output stage protection relay, dirty contact in a switch,
cold solder connection, or something similar.

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Greetings,

Jerry Greenberg GLG Technologies GLG
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"Kendrick S" wrote in message
om...
There are a few threads in the archives on this but I saw no
definitive course of action other than "take it to a repair shop." I
still might do that but that's not really why I'm here.

Onkyo A/V Tuner Amplifier R1 loses output to right channel
intermittently. All the following have occurred:
1. The unit is turned on and there is only output to the left channel.
This is what happens most frequently.

2. The unit is turned on and there is output to both channels.
Everything works, the stereo is a stereo; it happened this morning.

3. The unit is turned on and there is output to both channels and
then the right channel (and once even the left) disappears.

I have swapped the speakers so the problem is not there. There's a
big "click" a second or so after the unit is turned on which I take to
be a speaker protection feature. Is it possible that there is a
problem there? Any suspicions and simple test procedures will be
appreciated.


 
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