[rob@roblanter.com]

Hi JP,

I had initially made a mistake when building the SK25 which caused R14 and R15 to burn up. I replaced R14 and R15 and replaced the SK25. In a previous post I stated that I am getting a reading of .227VAC on TP2 when sending a 100Hz 2VAC signal. Could that reading of .227VAC be a result of the previous issue? Could I have affected other components besides R!4 and R15 due to the mistake I made with the SK25? If so, which components might have also been affected?

The mistake i made with the SK25 was reversing Q9 and Q10.

Thanks,

Rob Lanter

[JPK]

Could that reading of .227VAC be a result of the previous issue?

Sure it could. The mistake should not have affected other part outside the sk25.


I repeat what I said in the other thread:

We need to find out if the issue comes from the passive part or from the amplifier part.

Measure the AC level on the top pin (close to P1) of P5 (bass ATTEN). You can do that without the DOA inserted. You should get 0.11VAC. You can increase the input to 4VAC to make the read easier, 0.22VAC in this case.