Hi Florian

Ok I'll get hold of an oscilloscope and see what I can do.

Thanks

Phil

> On 2 Jun 2015, at 16:51, Florian Anwander fanwander@... [tr-707] < tr-707@yahoogroups.com > wrote:
>
> Hello Phil
>
> Am 02.06.2015 um 17:38 schrieb Phil Holmberg phil_holmberg@...
> [tr-707]:
>>
>> Hi, I have a 707 with an unusually loud Hi Tom and quiet rim/cowbell.
>> I have swapped out the volume board for a perfect one, so it must be
>> something on the voicing board. Please help.
> Do you have access to an oscilloscope That is what you need now.
> Remove the volume board and measure the instrument outputs on Q37 (Rim)
> and Q40 (LT),
>
> If the difference does appear here then it is really on the voicing board
>
> Then measure the signal at the inputs of IC 40 (4051) - this should show
> the "envelopes" for the instruments.
>
> Always compare working channels with the misbehaving channels.
>
> Tell us how far back you can track the behaviour.
>
> Regards
> Florian
>
>
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