NAD 3155 Schematic needed

[Carlosraj]

Hi Everyone,

I am trying to fix an old NAD 3155 stereo amp given by a friend. The left channel sounds very much softer than the right channel. If I plug directly into the "MAIN IN", then both channels sound equally loud. All the small signal transistors on the preamp seem to be OK. I haven;t check the caps yet. There are two ICs on the board but the part numbers cannot be seen including some transistors. I would greatly appreciate if someone can give me a clue on this problem and also send me this much needed schematic of this amplifier.

Thanks all.

Carlos Raj

[big jim]

Hi i have the nad 3150 circuit it might be same i can email you copy you want one


regards jim

[Mooly]

Check for faulty or damaged bass/treble pots if it has tone controls... maybe OC at one end etc... not the first time on a NAD.
Is it the same on all inputs ?

Haven't looked up your model by the way, just a first thought

[Carlosraj]

Originally Posted by big jim

Hi i have the nad 3150 circuit it might be same i can email you copy you want one


regards jim

Dear Big Jim

Yes, I would very much appreciate, if you can send me the NAD 3150 schematic. It could be very similar to the NAD 3155, if not it could be of guidance.

Thank you

Carlosraj

[abypaulose]

Hai Everyone ,

I would greatly appreciate if someone can give mail me the circuit diagram of NAD3155 stereo amplifier My Mail ID :- abypaulose2007@gmail.com

Thks
Aby

[stainless]

Hi,
here you go

nad 3155 Service Manual free download,schematics,datasheets,eeprom bins,pcb,repair info for test equipment and electronics