Are the ones marked W1G a06’s?
How do I determine what’s wrong in that bank ?
The outputs heat up like crazy if I add all 4 outputs in that bank it blows them instantly.
If I only have 2 outputs in that bank they heat up but amp will play clean audio.
All the diodes and transistors resistors check fine
How do I determine what’s wrong in that bank ?
The outputs heat up like crazy if I add all 4 outputs in that bank it blows them instantly.
If I only have 2 outputs in that bank they heat up but amp will play clean audio.
All the diodes and transistors resistors check fine
I'd assume that the W was a manufacturing site. 1G is an A06.
Did you check the transistors for leakage and open junctions?
Did you check all of the resistors?
Did you check the transistors for leakage and open junctions?
Did you check all of the resistors?
I double checked all of the resistors all check good .
All of the didoes and transistors check good as well and I checked for open junctions all seem fine .
If I measure voltages on the transistors o get different readings from around 1 transformer to around the other transformer.
For example all of the 2g’s have 19 volts on all 3 pins besides one and that on I only get 9 volts
All of the didoes and transistors check good as well and I checked for open junctions all seem fine .
If I measure voltages on the transistors o get different readings from around 1 transformer to around the other transformer.
For example all of the 2g’s have 19 volts on all 3 pins besides one and that on I only get 9 volts
I think i might have found the problem .
There was a 2.7 ohm resistor under the silicone that I didn’t see and I can’t get a reading on it at all .
I will replace it and see what i come up with
There was a 2.7 ohm resistor under the silicone that I didn’t see and I can’t get a reading on it at all .
I will replace it and see what i come up with
I replaced the resistor and replaced the drivers 1g and 2g
Same issue Q2009 heats up the fastest but hey all still get hot .
Is there a way to see if the 5110 is bad going off voltages ?
Same issue Q2009 heats up the fastest but hey all still get hot .
Is there a way to see if the 5110 is bad going off voltages ?
The outputs can't heat up without rail voltage.
You may also need to install a jumper on the driver board.
After desoldering the rectifiers, post a photo of the drive signal on the heating FETs.
Confirm that the rail voltage is 0v and you can connect your scope's ground clip to the source leg of the FET if you can't get a good signal.
You may also need to install a jumper on the driver board.
After desoldering the rectifiers, post a photo of the drive signal on the heating FETs.
Confirm that the rail voltage is 0v and you can connect your scope's ground clip to the source leg of the FET if you can't get a good signal.
With the center legs of the rectifiers lifted I bet a problem on the outputs that heat up .
I get 8.38 volts on the gate leg of Q2007,2009
The rest of the outputs have very near 0 volts
I get 8.38 volts on the gate leg of Q2007,2009
The rest of the outputs have very near 0 volts
Solder a small gauge jumper wire across R220.
Does that change the voltages on the gates?
Black probe on the source leg if you're using a multimeter.
Does that change the voltages on the gates?
Black probe on the source leg if you're using a multimeter.