What happened after post 61 where you got a blue LED lighting up that now prevents it from lighting up?
Nothing I just tried it again and it just didn't work.... but I short Pin 2 and 3 of u101 and the protect light shuts off ...that's 12v and #2 output.
U101 U102
1. 4.92v 1. 5.91v
2. 5.91v 2. 5.95v
3. 11.76v 3. 11.76v
4. 0.00v 4. 0.17v
5. 2.67v 5. 2.48v
6. 2.46v 6. 0.00v
7. 6.48v 7. 2.67v
8. 4.08v 8. 3.85v
9. 2.50v 9. 4.98v
10. 0.25v 10. 4.98v
11. 0.00v 11. 7.30v
12. 0.00v 12. 0.00v
13. 0.00v 13. 7.25v
14. 5.35v 14. 7.25v
volts at remote is 12.33v
no connection @ B+
u101
1. 4.92v
2. 5.91v
3 . 11.75v
4. 0.00v
5. 2.67v
6. 2.46v
7. 6.48v
8. 4.08v
9. 2.50v
10. 0.20v
11. 0.00v
12. 0.00v
13. 0.00v
14. 7.22v
u102
1. 5.91v
2. 5.95v
3. 11.75v
4. 0.17v
5. 2.48v
6. 0.00v
7. 2.67v
8. 3.85v
9. 4.99v
10. 4.99v
11. 5.20v
12. 7.30v
13. 0.00v
14. 7.22v
sorry when i posted there was a lot of space between the two rows.. I dont know why it didnt post like i had it.
this is with 12v @gnd and REM
no power at B+
1. 4.92v
2. 5.91v
3 . 11.75v
4. 0.00v
5. 2.67v
6. 2.46v
7. 6.48v
8. 4.08v
9. 2.50v
10. 0.20v
11. 0.00v
12. 0.00v
13. 0.00v
14. 7.22v
u102
1. 5.91v
2. 5.95v
3. 11.75v
4. 0.17v
5. 2.48v
6. 0.00v
7. 2.67v
8. 3.85v
9. 4.99v
10. 4.99v
11. 5.20v
12. 7.30v
13. 0.00v
14. 7.22v
sorry when i posted there was a lot of space between the two rows.. I dont know why it didnt post like i had it.
this is with 12v @gnd and REM
no power at B+
ill double check. how do i tell if they are leaking? could i just remove all but
i will double check but i think they all checked out.
It would be difficult to remove them all.
Re-check them and make sure that they all have similar readings from terminals 1-2, 1-3 and 2-3.
Re-check them and make sure that they all have similar readings from terminals 1-2, 1-3 and 2-3.
None are shorted but I find there is a short between b+ and the transformers and a short to gnd this isn't normal correct?
The B+ terminal on the amp is directly connected to the power transformer's primary center-tap.
Short to ground?
Short to ground?
Yes the same place I was reading conductivity to power it was reading to ground
But not directly shorted that's why I thought it was funny... that makes so much more sense now I know that's connected ha..
What were the two points where you had your probes (precisely) and what was the resistance reading?
Bear with me my house burnt down about 6 months ago and I didn't have insurance. I'm working with a ghetto ohm meter from harbor freight. It would stay beeping for about 10 sec. Then quit.
I don't care what you have. This isn't a contest. I just wanted to see what you had to work with.
If you can't switch off the tone for the low-ohm range, just ignore it and look at the display. If the numbers are changing, let them stop before you make any conclusions.
As a side note, an experienced tech with that meter (or even less) could run rings around a newbie with the best meter available. I know. I was that newbie 35 years ago. I had $20k in brand new Sencore equipment and couldn't do a fraction of what the tech I worked for could do with the most basic equipment.
If you can't switch off the tone for the low-ohm range, just ignore it and look at the display. If the numbers are changing, let them stop before you make any conclusions.
As a side note, an experienced tech with that meter (or even less) could run rings around a newbie with the best meter available. I know. I was that newbie 35 years ago. I had $20k in brand new Sencore equipment and couldn't do a fraction of what the tech I worked for could do with the most basic equipment.
I hear that .. what were you seeing with the comparators?were you saying it's looking like a leak or shorted output transisters?