Denon PMA-1500AE Schematic or SM needed

like this
1659715874927.png
 
Hello all,

I have identified the same problem on the same amp (it's 15 years old...), and clearly I'd like to clean the input selector before spending money in repairs... but I have no idea of the level of skill required. Can someone perhaps walk me through this or point me in the direction of a good how to? Specifically, disassembling/reassembling the unit?

Thanks in advance!
 
Thanks for the lightning-fast reply! Unfortunately, as useful as that is (my electricity uni courses are rushing back at me!), I would still need something more "hands-on" for me to get cracking on this. Like actual instruction on how to open the unit and how to disassemble the switch.
 
I can no longer select a source on my PMA1500AE. This is not possible with the selector and the remote control. The indicator LED around the selector also does not light up. Does anyone have experience with this?
That's immediately less funny...
Start by checking the power supplies of IC 201 IC 202 and IC 901
 

Attachments