pg octane 900.5 repair

We are going to have to replace all 4 of the power supply transistors, so cut the bottom 2 out also.  But cut them as close to the case as possible.  Bend the legs so that they are perpendicular to the board.  Do not cut these near the board.  This will make it much easier to remove the legs when it comes time.  After you cut these 2 out, reinstall all clamps and another 10 amp fuse,  (it will not blow this time)  Power it up and set your meter to DC volts.  One lead on left leg and one lead on right leg.   It should be near 5 Volts on each of the transistors.  I am thinking that one pair is going to be lower or higher than that.  Also there should be a chip with about 16 pins on it.  I need to know the number,  it will be XX494 or XX594 or XX352X.  One of the other legs of the 1266s will go to that chip.

I can not find anything on their website.  If you could call them or go by there and see if they carry the TIP36s and an IRF-Z44.  Preferably the International Rectifier brand.  If they try to sell you an NTE cross reference, you would be better off ordering the originals from DigiKey.com  or Mouser.com

Thinking back, there is still possibly something shorted, that is why the fuse kept blowing when the power supply transistors were still in the amp.  When we removed them and verified that there was around 5 volts on the gate of the transistor, this leads me to believe that there is still a problem with the audio section.  While you are ordering, go ahead and get a couple TIP35s also.