leak delta 70

[Tony83]

My delta 70 was running ok then one channel suddenly became very very loud. I could only listen with the balance knob fully clockwise. I isolated the fault to one plug-in amlifier (not pre-amp) board. I have the circuit diagram, but need help to pin point the faulty component. Can anyone help please?

 

[mjf]

you think the fault is in the power amp section....(behind the volume control)?

at first i would search for a bad soldering point or a lost cable connection.

 

[Tony83]

Thank you. The fault is definitely on one plug-in board, the amplifier board not the pre-amp. I have looked on the board for bad solder joints but not found any.

 

[mjf]

i guess........you have a multimeter..........

you can measure the voltage drops across some parts of the working channel and compare these with the bad channel. there should be a difference somewhere.

 

[Cal Weldon]

Hey Tony, welcome to diyAudio. You might have better luck if you post this somewhere other than the intro area. Not everyone looks in here.