Got back to this. (Referring to lab5-schem-2) Looking at the Master Volume, Compressor, Outout part of the schematic. I have trace a very good clean signal to R76. I get signal on both sides of the resistor. I still have a signal into C36. Now, assuming I understand the schematic, there is no signal anywhere in Q1. There is continuity from C36 to the bottom leg of Q1. I have replaced C36 as well.
Is there anything else to check?
If the signal has disappeared at q1, maybe check that there isn't any short to ground around c37. Test if q1 is shorted directly to ground?
Quote from: mjg on May 15, 2020, 10:37:34 PM
If the signal has disappeared at q1, maybe check that there isn't any short to ground around c37. Test if q1 is shorted directly to ground?
Thanks. That never occured to me.
And channel 1 does not work at all. I'll get to that leter.
Quote from: mjg on May 15, 2020, 10:37:34 PM
If the signal has disappeared at q1, maybe check that there isn't any short to ground around c37. Test if q1 is shorted directly to ground?
No shorts. Putting it away and giving up. It's not worth the time and I don't have the expertise to run down the problems. Thanks for the suggestion.