Bang & Olufsen Beomaster 1000 Stereo Amplifier, White Key Model, Work But Issues (F1)

As per the title this works but with issues so therefore I am selling for spares or repairs.

I tested this with the B&O Beogram 2200 turntable, it powers up and radio works but the sound sometimes is low or doesn’t come out properly, wiggling the speaker cable in the back makes the sound change or not come out at all. There is also distortion when using the keys or knobs. There maybe other issues which I am unaware of as I am no expert.

Please see the pictures for further description of the condition and take the above into consideration before buying. Thanks