I just finished the repair works for this Beomaster by glueing the broken treble potentiometer back together. Man i hate flimsy 70's plastics... Here it's glued already. Sorry about the poor pic -just bought a new camera and don't know how to use it yet... Martin sent me a better rectifier which i aslo solderd in position. Now all i have

Here's some project pics: New caps All the soldering was done when the BM was positioned like this. This way i could reach both sides at the same time. Here's the burnt rectifier All the capasitors removed. Removing these was quite straght forward. Only few palces were hard to reach. Soldering the new capasitors in position was much easier as

Changing the lamps solved the problem. Thanks Dillen! By the way, is it typical for these amplifiers to make a thump when switched on? I have a pair of BeoVox 2702 speakers connected to this and the thump is noticeable. It doesn't sound anything different than my fathers old philips music center from the 70's. But for an equipment this sophisticated

I finally ordered the capasitor kit from Dillen and it arrived on friday. So i spent the whole evening replacing the caps. I also bought a new rectifier as Dillen said it's propably shot. When i opened the BM i noticed that the rectifier was indeed in poor condition -burn marks were clearly visible on the circuit board. After all the soldering work

I changed the picture above as I made some improvements to my drawings. Slider films should be correct now. BUT!! I noticed that the picture has been compressed more while i uploaded it to photobucket so it's quality is too bad for printing. So if someone needs the drawings to restore their BM1900, please contact me and i'll send you the original

Ok, ofcource after i started to praise my self i noticed a slight fault in my drawing... The center "box" is just a tad too tall, so i'll have to change this. So, don't download the picture yet, i'll change it soon.

I tried to make them as accurate as possible. I measured the original film with micrometer, scanned it and draw the new one in Rhinoceros using the scan as a background bitmap. I printed the new pattern with a laser printer to a film and i'd say it's pretty good match. I'm happy with the end result.

As i've found this forum very helpfull i thought i could offer my help too. My BM1900's slidebuttons had toasted films so i had to make new ones. This is one of the originals. This one was in best shape and i used it when i draw the replacement. Here are the new ones. You can use these when restoring your own BM1900.

[quote user="Dillen"] Normally, you don't have to dismount the main board from the plastic frame. You can lift a corner a bit at a time and you will normally be able to access most things.[/quote] Ok. I thougth some of the caps were in quite tight locations, so it would be necessary to remove the boards to reach these. But as it seems

I finally had the time to start the actual repair work for this Beomaster. I replaced all of the light bulbs and repaired the burnt CB. All of the lamps illuminate now except the tape-lamp. The tape button doesn't work either -nothing happens when i push the button. I checked superficially all circuit boards and found bad repairs in several places