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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Default Denon DN-A7100 surround preamp

Hello all,

I've got a Denon DN-A7100 which came in with a complaint of the front
panel volume control (rotary encoder) not working, but volume on the
remote OK. I initially traced it don to no +5V on the encoder when, OH
JOY, it fixed itself.

Anyone seen this problem on this model before? Anyone have an
e-mailable schematic?

Thanks!
Tim Schwartz
Bristol Electronics
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Default Denon DN-A7100 surround preamp

"Tim Schwartz" wrote in message
...
Hello all,

I've got a Denon DN-A7100 which came in with a complaint of the front
panel volume control (rotary encoder) not working, but volume on the
remote OK. I initially traced it don to no +5V on the encoder when, OH
JOY, it fixed itself.

Anyone seen this problem on this model before? Anyone have an e-mailable
schematic?

Thanks!
Tim Schwartz
Bristol Electronics



It'll be the volume encoder - I get these sorts of complaints all the time.
You can 'scope the output and see how noisy or nearly non-existent it is.

Part number is 9430205909

I stock your most common types for this reason. It so happens that Onkyo
sells them cheap. Send me a pic and the dimensions and I'll bet I have one.

Mark Z.

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