The link sends the browser to the last post so it skipped several posts.
Did you have R137/138 reversed?
Did you have R137/138 reversed?
Reinstalled R137 but still get no audio on driverboard pin 1
mare U101,107 supposed to have 13 volts on pin 1?
mare U101,107 supposed to have 13 volts on pin 1?
Bridge 1-2. Voltage on pin 1/2?
Are the switches back in the board?
If so, set the master slave switch to master and post a photo showing each pair of terminals that are directly connected?
Are the switches back in the board?
If so, set the master slave switch to master and post a photo showing each pair of terminals that are directly connected?
If I bridge pins 1-2 on U107 I still get -12.57 volts .
I took the switches back out to spray them and clean
I took the switches back out to spray them and clean
Are you 100% sure that pin 3 is 0 and pin 1 -12?
If the switches are out, measure the resistance between terminals as described and install a wire jumper in place of the terminals that read 0 ohms.
Set the phase switch to 0 and install jumpers like above.
Did you try dripping contact cleaner through the holes in the top? It should have flooded the switch.
If the switches are out, measure the resistance between terminals as described and install a wire jumper in place of the terminals that read 0 ohms.
Set the phase switch to 0 and install jumpers like above.
Did you try dripping contact cleaner through the holes in the top? It should have flooded the switch.
Ok I reinstalled the switches after cleaning them and tested for audio using a 100hz sine wave from my test oscillator .
The amp had output .
I will recheck for audio using a head unit as signal and confirm and post back
The amp had output .
I will recheck for audio using a head unit as signal and confirm and post back
I think that's due to a dirty switch. That's why I wanted you to replace the switch with jumpers. If the switches are in it, you can leave them. Post a photo.