threshold T200

[miguelnoda]

Hi, I have a T200 threshold and I am updating it with all the new trainers.
I have checked all the components and the surprise when I turn it on is that in the right channel at the exit the DC is 270mv
and in the left channel 8.75volts and do not regulate the bias, always checking it with a lamp in series in AC.
I've checked everything and I don't see anything wrong in a vacuum. They could help me.
Cheers

 

[Zen Mod]

pictures, schematic, more details - what actually you replaced ?

 

[miguelnoda]

I send photos of what I did to him, one channel works well and the other one badly with output voltage I have checked the components in empty and they give me good measurements, I have no scheme

 

[Zen Mod]

pictures are too small

try to upload something as 1200 pixels per bigger side

 

[miguelnoda]

I send photos of what I did to him, one channel works well and the other one badly with output voltage I have checked the components in empty and they give me good measurements, I have no scheme

 

[Zen Mod]

threshold t200 site:www.diyaudio.com - Google Search

 

[miguelnoda]

threshold t200

There are two points on the plate to measure but I don't know how to measure them and the tension there should be.
free photo host

 

[Zen Mod]

without schematic , being unfamiliar with amp itself , I can't be of any help

 

[rwwear]

This is what I was told by an ex Threshold tech. DC offset should be less then 50mV and the bias should be 10-11 mV as measured across the .01ohm resistor on the power supply PCB

Looking the rear:

Left side: bias on top, offset on the bottom

Right side: offset on the top, bias on the bottom

 

[Nelson Pass]

I would help, but this was after my time.

 

[rwwear]

Thanks. Hopefully what I posted is correct.

Robt.

 

[rwwear]

I have a question for Nelson Pass or anyone else who can tell me. Where can I acquire the clear thermal compound similar to what is used on Threshold and other brand heat sinks?