Re: Cambridge P40
Have you cleaned all the switches and pots with contact cleaner?
After that, the first thing to do is to compare the RH and LH preamp supply voltages.
As Mike says, if that is beyond your abilities then you would be best advised to sell it on in a non working state and buy a replacement. Good integrated amps can be bought for less than £50, sometimes a lot less. A forum member may even have something suitable.
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