i can find why channel 1 has no audio. I pulled all transist ok rs in the 100 channel and tested them. i can see audio is going into and to q111- c121, and varies other components. yet no audio from that channel.unless bridged or the other ground is used.
No sin-wave is going down the COP6, COP4, COP5?
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No sin-wave is going down the COP6, COP4, COP5?
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Attachments
That's not a 500.
What about C122 and C115?
If this channel is bridged to another channel and it produces clean audio, it is likely a dirty switch.
What about C122 and C115?
If this channel is bridged to another channel and it produces clean audio, it is likely a dirty switch.
if i ground at the out channel i can not see the 40hrz on the opamps, yet if i ground on any of the other 3 channels grounds its there.