|
There's one test you could do 'experimentally' to raise the 135V source, just to determine whether the problem is due to low voltage there, or not. Just clip open either end of R186c (6750Ω), and insert a resistor in series with a pair of clip leads. I would try first a 1K, then a 2.2K, and maybe a 3.3K, all at least 2 watt rated. If raising the voltage doesn't help the problem, then you know. Just re-connect R186 and pursue another route.
Last edited by old_coot88; 06-21-2024 at 11:45 PM.
|