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This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
I have no experience working with electronics at all.
I recently acquired a Beomaster 1000 from my elderly neighbours as they were clearing out their garage. I hooked it up via a 5 pin din - phono cable to my iPod and then via two 2 pin din stereo cables to a pair of Mordaunt Short Pageant II speakers, using the Beomaster as an amp for the iPod.
This setup was working perfectly.
The speaker cables were very short and I needed to make them longer in order to position the speakers where I wanted them. I spliced the hi-fi cables to other hi-fi cables with a larger gauge in order to extend them and covered the splice with heat-shrink. The connection seemed complete.
After turning on the Beomaster, it was playing the music, but the volume needed to be set much higher and even then the output was far quieter than it had been before the splice.
Upon turning both the iPod and the Beomaster to full volume, the music became incredibly distorted though still barely audible. The levels had been fine before the cable splicing.
After a few seconds, smoke started emerging from the top of the Beomaster 1000 and I switched it off to prevent any further damage.
This did not happen before I extended the cables.
Is this the result of a poor splicing job or something more serious?
Any suggestions on how to fix this would be very welcome.
Welcome to Beoworld !
Could be a bad splice job, - check your work.Could also be a problem with the Beomaster, it's close to 50 years old so will most likely need a thorough service, new capacitors, trimmers etc.
Martin
When you extended the speaker cables, you have possibly put them out of phase if they are now more quiet than before. You need to check that +ve is +ve and -ve is -ve at each end of the cable. Sounds like they have swapped due to a cable twist e.g. you have connected the extensions but turned the cable so that what was +ve is now connected to -ve or vice-versa.
Plus, as Martin says, a service will be needed more than likely. There has been a thread on a BM1000 service done on one I gave to Jacques (Chartz).
Dave.
The speaker cables have the right +ve and -ve connections, though one is longer than the other by a couple of inches, though I'm not sure that would affect phase distinguishably.
I tried re-splicing one of them and botched it even more, as a result the speaker cut out entirely. The other one changes volume when I move the wire around.
As a result I'm almost certain it's just the result of a dire splicing job.
I have no idea why smoke came pouring out the top, but I think it might have just been that there was too much resistance in the wires or I ended up overdriving the unit too much. It hasn't done it again, so it's probably okay.
At best, the BM1000 is working fine and I'm a poor electrician. At worst, it's a fire hazard in need of a service.
Either way, I'll be sure to keep it well away from the curtains.