Originally Posted by devast
Was doing that. But i think i managed to fry Q1P and Q2P today. I connected the headphone out to my computers line in, pressed the power button, funny smell, and led is not glowing... No biggie, i will resurrect her again
edit: later on i realized what i have done. Basically, i shorted SG to OG
edit2: Do you think anything else could have died in the rail splitter circuit? I'm not sure about that, it should have taken "lighter" overload.
Go about it a step at the time.
Am guessing the buffer transistors are probably toast. you could try the simple multimeter test on the BJTs for a start but i'd recommend removing the 7824 regulator IC, turn it on and see if Q1P and/or Q2P burn out. If they do, then you have something else wrong in your power supply.
If they are are fine, then check to see if you have about 34-35V on pin1 pad of the 7824 regulator.
, turn the amp off, If that is fine then remove all the splitter transistors, leave the ground splitter IC in,
plug in the regulator IC and turn the amp on..check to see if you are seeing 12V on pin 3 of IC1S.
If that is fine, then go ahead and turn off the amp, plug in the splitter BJTs and see what happens.
If you aren't getting 12V on pin 3 of IC1S opamp then replace the splitter TO-92 part and check for voltage level at pin 3 of the opamp again.
If you are getting 12V then plug in the splitter ICs and turn on the amp.
if things are still blowing, you will again have to do the whole thing again and also replace the buffer transistors.