|
Untitled Page
ARCHIVED FORUM -- April 2007 to March 2012 READ ONLY FORUM
This is the first Archived Forum which was active between 17th April 2007 and
1st March February 2012
Search
-
This is the ripple on the 23.2V circuit with the large 3000uF original capacitor. Capacitance measured 3565uF. Ripple 1900mV pp.
-
Capacitors arrived. Installed as in pic. As always, for the skeptics who claim - "No reason to change capacitors - my 40-year-old BeoGram is working flawlessly". Proof positive - the circuits are overstressed with excessive ripple. Pictures below!
-
Aha! Your curiosity got the better of you! So it was a production goof! I'm not surprised that it is your #1 TT. I'm waiting for capacitors and resistors. As soon as they arrive, I'll continue.
-
[quote user="Søren Hammer"] It's quite strange that the pickup leads were soldered in reverse, never heard about flaw like that though! [/quote] Yes, how many times does a tech check polarity of the 4 colored tonearm wires? We just take it for granted that they're OK, as long as we hear something playing through the amplifier
-
Gunther, Thank you! Yes, the FCH is before my time as well. I DO have < and > functions - it just runs fast, because the voltage is at about 10VDC, instead of about 3VDC. And the Potis are brand-new Bourns Cermet units - the ones I use for many years now- excellent quality, so they are not at fault. So I am just trying to figure out why they are
-
Having now redone the main PCB with new caps, potis and some resistors, the 33rpm now regulates correctly - before it wandered all over the place. 2 remaining problems - perhaps I'm not doing something correctly. Potis 1VR5 and 1VR6 adjust the DC Servo Motor voltage in < FF and > RW. I have my Fluke 187 RMS voltage meter connected, and I am
-
That's fine, but you MUST disassemble the pivot points and clean out the old gunk, before putting in new oil. The reason is quite simple - with the old gunk in there, the solenoid is working very hard to overcome the friction, drawing a fortune of current, and is heating up, drastically shortening its lifetime. With the gunk removed, it's working
-
You put a smile on my face!!!! But here, the men meet in the living room, and put the wife in the bedroom with the children!
-
Well, this reverse wiring looks like an original production goof - apologies to the supposedly sleepy production assembler and idiot aftermarket technician! In the BG4000 Service Manual Page 3-2 (and the SM's for the 4002 and 4004), the pickup schematic shows very clearly (and correctly) the order of the 4 finger connectors on the tonearm. The L&R
-
I don't get it. What is a "garage system"? Surely you don't mean that you put a BeoSystem in the garage? Here, we park on the kerb in front of the house - only the ultra-wealthy have a private garage for their cars. I guess that means that if they can afford a garage, they can afford a new BeoSystem in the garage! My Beo's are
|
|
|