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Car Forum / BMW Cars / May 2008Amplifier check
Anyone know how to check if the amplifier is working properly in an E32 amp? I have a severe problem with balance and I think it may be the amp. The right side is overwealming the left - in fact, at minimum volume I cant hear the left at all and the right side is very loud. > Anyone know how to check if the amplifier is working properly in an E32 > amp? I have a severe problem with balance and I think it may be the amp. > The right side is overwealming the left - in fact, at minimum volume I > cant hear the left at all and the right side is very loud. Which side are you sitting on? left - if it matters >> Anyone know how to check if the amplifier is working properly in an E32 >> amp? I have a severe problem with balance and I think it may be the amp. >> The right side is overwealming the left - in fact, at minimum volume I >> cant hear the left at all and the right side is very loud. > > Which side are you sitting on? > Anyone know how to check if the amplifier is working properly in an E32 > amp? I have a severe problem with balance and I think it may be the > amp. The right side is overwealming the left - in fact, at minimum > volume I cant hear the left at all and the right side is very loud. If you can't turn the volume right down on one channel and it's a setup with separate amp I'd say the first place to look is the head unit.  Signature*With her marriage she got a new name and a dress.* Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. >> Anyone know how to check if the amplifier is working properly in an E32 >> amp? I have a severe problem with balance and I think it may be the [quoted text clipped - 3 lines] >If you can't turn the volume right down on one channel and it's a setup >with separate amp I'd say the first place to look is the head unit. And the cables. Jumper both channels together before the amp... if the signal comes up on the bad channel, it's the head amp or the cabling at the head amp. If it doesn't, it's the amp or the speakers or the wiring between them. --scott Signature"C'est un Nagra. C'est suisse, et tres, tres precis." Good diagnostic - I will try that. Thx >>> Anyone know how to check if the amplifier is working properly in an E32 >>> amp? I have a severe problem with balance and I think it may be the [quoted text clipped - 10 lines] > doesn't, it's the amp or the speakers or the wiring between them. > --scott > >> Anyone know how to check if the amplifier is working properly in an E32 > >> amp? I have a severe problem with balance and I think it may be the [quoted text clipped - 3 lines] > >If you can't turn the volume right down on one channel and it's a setup > >with separate amp I'd say the first place to look is the head unit. > And the cables. > Jumper both channels together before the amp... if the signal comes up on > the bad channel, it's the head amp or the cabling at the head amp. If it > doesn't, it's the amp or the speakers or the wiring between them. Or simply swap left to right. Trouble is this can be tricky with some amps. Signature*El nino made me do it Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. >> >> Anyone know how to check if the amplifier is working properly in an E32 >> >> amp? I have a severe problem with balance and I think it may be the [quoted text clipped - 11 lines] > >Or simply swap left to right. Trouble is this can be tricky with some amps. Right, the problem is that all the signals are on a multipin connector, so the easiest thing to do is to jam a jumper wire into the back of the connector. Note that the multipin connectors _do_ fail. Not too often, but it happens. When you have the one in the trunk apart, pack it with dielectric grease just to keep it reliable in the future. --scott Signature"C'est un Nagra. C'est suisse, et tres, tres precis." Hello, I suspect some internal IC in the head unit is broken, this is were volume/balance/channel etc are stored. I saw this 2 times in E39 radio's, the IC are NVM IC's, most of the time 93C46. What I did solder it out, read it with an NVM reader, get a new one, copy the old info into the new one, solder it back, and you are ready. It's quite a higer level DIY job. Best regards, Marcel, 525iA @ 364dKm. > Anyone know how to check if the amplifier is working properly in an E32 > amp? I have a severe problem with balance and I think it may be the amp. > The right side is overwealming the left - in fact, at minimum volume I > cant hear the left at all and the right side is very loud. Thx - my soldering skills arent as good as yours. How do I get a hold of an NVM reader? > Hello, > [quoted text clipped - 14 lines] >> The right side is overwealming the left - in fact, at minimum volume I >> cant hear the left at all and the right side is very loud.
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