This would be the case had he not reported that this once worked properly and
then failed. Changing resistor values is probably not going to correct for a
component failure.
There is, I believe, a headphone driver chip that can be damaged by plugging in
a mono connector into the phone jack. I would look here.
I have a spare front panel board that has this circuit so, if needed, a
replacement is available.
Gary
Sent from my iPad
> On Aug 24, 2016, at 4:30 AM, Barry N1EU <barry.n1eu@gmail.com> wrote:
>
> There are some resistors in series with the headphone jack and you can try
> lowering their values. I did that back when I owned a 565 and it helped.
>
> 73, Barry N1EU
>
>> On Tue, Aug 23, 2016 at 10:33 PM, Arthur Lewis <wa8vsj@gmail.com> wrote:
>>
>> *I have a Orion 1 that I purchased in 2004. It has worked great and still
>> does, but I have noticed my receive audio is low and I have to turn the
>> volume up when I plug in my ear phones. The phones work well on my other
>> rigs. They are Sennheiser HD280 pro. They have always worked well on the
>> Orion until last couple of days. In CW when I use the phones, I have to
>> turn the volume up, the CW sidetone gets extremely loud in the phones. The
>> phone audio is also low on SSB*
>>
>> *The speaker audio is fine. I like using the phones to separate the
>> receivers and it makes listening much easier.*
>>
>> *Anyone ever have this problem.*
>>
>> *Art WA8VSJ*
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