This is a follow up to my recent post about the redesigned Beogram Commander remote control board, which now works in both (DC-motor) Beogr...
Thursday, June 12, 2014
Beomaster 8000: Replacing the Reservoir Capacitors
Today was the day for the reservoir capacitors of the Beomaster 8000 on my bench. Always a pleasure to replace these big 10000 uF cans! After all it all begins with them! I replaced them with the 105C ECES1JA103EZ Panasonic type. They have almost the same size (35 mm diameter vs. original ones at 40 mm and same 80 mm height) and clock in with a solid ESR of 10-11 mOhm at 100Hz for an unimpeded flow of power. They are also rated for 105C, i.e. promise to last for a while, even if it gets a bit warm back there. Unfortunately, this type was discontinued not too long ago...it is getting difficult to find this form factor...electronics parts continue to get smaller. The 5 mm diameter difference was corrected with a wrap of thin corrugated cardboard. That way they fit snugly in their compartments.
Here are some pictures:
Pretty dusty back there...(sorry for the slight blur...)
And after replacing them:
Almost sexy!!...if you know what I mean...;-)
And here a detail shot of the left channel:
On to the speaker switches, while the heat sink cover is off...