sajjad amer
Active Member
TR610 Collector is 28.5, just disengaged the Mute button, still no output at speakers, I am afraid.
I was kinda hoping it was a missing the 30 volt ( 28.5v) power supply voltage.everything else so far has passed your inspection
Just check the solder connection on TR805. I you wish..TR804 and 805 are the drive transistors. The pass transistor TR805 normally runs very warm and over time fatigues the solder connections.Which Transistors specifically drive the relay? Should I check them just in case ?
junk it.Took out the cap from circuit and measured
ESR =10,
V Loss, 6.8,
C=17.40
It will alter the delay time,but should work.ok, will replace the cap and report back. I have 47uf, 50v in my kit, can I use it momentarily to check if every thing works? I have reflowed the solder on TR805
I guess it won't work then...Have to wait til you get the proper cap.Replaced the cap as suggested, now the relay does not click at all, despite multiple on/off cycles