Hi all Hoping someone can help with this ugly monolithic beast. It's in good condition and may be worth saving but has "sound issues" whereby the radio works fine on both channels until you engage Surround Sound, at which point the right channel fades almost completely. However the tape has the opposite problem i.e. you only get both channels with Surround Sound engaged; without it, the right channel is almost dead. This obviously eliminates the speaker drivers and their immediate wiring because they are all working, just not in the right combinations. Also the tape volume is less than half the radio volume but I can live with that if I can fix the other. Anyway, nowhere seems to have the repair manual which would help with diagnosing the problem so maybe someone has that? Thanks in advance Nick