Author Topic: Right Channel Hum (Read 489 times)

thoven0215 · « **Reply #15 on:** July 03, 2022, 12:06:26 PM »

Other pics

Paul Birkeland · « **Reply #16 on:** July 03, 2022, 02:51:52 PM »

Does the 2.49K resistor still measure 2.49K?

thoven0215 · « **Reply #17 on:** July 21, 2022, 01:55:55 PM »

My apologizes for the late response, came back from a trip and had a case of covid. The 2.49 resistor measures at around 0.08 now.

Paul Birkeland · « **Reply #18 on:** July 21, 2022, 02:26:42 PM »

I would start by replacing that part and the TL431 on that side as well.

thoven0215 · « **Reply #19 on:** July 23, 2022, 01:49:40 PM »

Did you mean the LM431 regulator? I looked at the parts list for the shunt regulator and only saw the LM431 and no TL431.

Paul Birkeland · « **Reply #20 on:** July 23, 2022, 03:18:55 PM »

Yes, they are the same part from different manufacturers.

thoven0215 · « **Reply #21 on:** July 31, 2022, 11:18:06 AM »

I just want to confirm that my JC2907AN43 is the same as the PN2907A transistor.

Paul Birkeland · « **Reply #22 on:** July 31, 2022, 01:22:50 PM »

Correct.