Just typed a big post and lost it all because my attachment was too big so I'll try and keep it brief.
Got a Glensound mixer in and the +ve rail of the power supply is only supplying half a volt compared with 18v on the -ve.
After checking with multimeter: transformer is ok, measured the voltage at the legs of the two transistors. The TIP146 on the (working) -ve side has ~24v on each leg and the TIP141 (non-working +ve side) has 20v on the middle leg and 0v on the other two. I guess I need to replace the 141?
I've reheated all the solder pads so I don't think it's a cold joint.
Got a Glensound mixer in and the +ve rail of the power supply is only supplying half a volt compared with 18v on the -ve.
After checking with multimeter: transformer is ok, measured the voltage at the legs of the two transistors. The TIP146 on the (working) -ve side has ~24v on each leg and the TIP141 (non-working +ve side) has 20v on the middle leg and 0v on the other two. I guess I need to replace the 141?
I've reheated all the solder pads so I don't think it's a cold joint.