Hi all, I'm having a bit of trouble with my power supply, and thought the wise folks over here might be able to shed some insight. I've been blowing fuses on...
Just a quick update. As it turns out, none of the many fuses I've been going through have actually blown. It seemed that they had, because the 18v rails had...
Michael, First the fuses are WRONG but that is probably not the problem. I would suspect the fuse holders are bad. Drop the front panel on the power supply...
Tom, I verified with my multimeter that the heat sinks aren't shorted to chassis ground. Also, the fuse holders appear to be fine, there's no sign of...
Michael, I had one that had that problem, and it turned out the sockets / wires on the 18 volt pass transistors were cooked. (right at the transistors ...
Thanks, Scott. I'll check those out; in a while, a friend is coming over to help me lift the beast out of its cage, so i'll be able to get a better look....
Wow, this has been a most illuminating rush of posts, which may be the key to the continuing power supply problems we've been having. I just grabbed my...
Matt, The later supplies after serial number 20 MAY have the heat sinks grounded but then the Pass transistor has a gray SilPad underneath it. That will...
Hi all, Today I was able to open the ol' Deltona up properly, and verified that the fuse holders are definitely not the problem in this case. As far as the...
Michael, OK you are blowing fuses but not blowing fuses? Next time the power supply goes down, check BOTH the +18 V and -18 V fuses. If either one blows both...
Thanks Tom, I really appreciate your thoroughness. This is a very long post, so I'll start by saying that it seems to be working now, so if you don't feel...
Michael, I think you nailed it. You seem like a great Tech! The power supply was designed and delivered with two "L" brackets that screwed into the chassis...
I finally found some huge power resistors at a surplus electronics place, used a crude hunk of wood to bracket them to (well vented), and rigged up a couple of...
I think I'll have to print that post and have it framed! Now, could you guys help me get my printer working . . . Seriously, though, thanks a ton for your...
Yeah, I guess mine did lose the strain relief. Since I keep mine in a 6' tall server rack (hooray for computer Goodwill!), I put a blank rack panel on the...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the sony-mxp-3k group. File :...
sony-mxp-3k@yahoogrou...
Oct 21, 2009 5:55 pm
1249
Hi everybody, sorry to be such a whiner, but I have a new problem, perhaps caused by my meddling with the 18v rails. After Tom and Scott so graciously helped...
Damn. You are knee deep in it. Not sure how much help I can be, but if need an extra set of eyeballs or whatever, let me know. I'm living in Boulden now, so...
Michael, There can be NO noise coming out of the console if the +/- rails are off. If it is coming out of the PFL speaker it is not coming from the console...
Michael, Assuming the power supply is clean, what changed on the console? Start disconnecting input Tuchels. Later Tom graefe@... ... From: Tom Graefe ...
Did you say you replaced parts in your power supply? Did you have to use NTE parts? Are you sure you got accurate replacements? D/ On Oct 21, 2009, at 3:11 PM,...
You need to make sure your power supply is clean first and foremost, particularly since you've been mucking around in there very recently. Look at all the...
Thanks for weighing in, everyone! I spoke with a local tech yesterday, and on his advice started pulling modules; the noise comes out of the PFL speaker even...
Update: The noise is gone. Local guru David Hough came over and we checked a bunch of stuff out. we were still getting noise with no tuchels in and no...
DH is a rad dude. Always pleasure to see how. Is he doing well? D/ On Oct 22, 2009, at 5:01 PM, grandchampeen wrote: Update: The noise is gone. Local guru...
Michael, Ahhh the +24V rail.................. Adjust the voltages at the console for exactly +/-18V and +24V. If you have VCA's they will have to be adjusted...
Easy way.? LOL That is the easy way. I hate those things so much I bought the LED replacement modules for my own console, but got unlucky and got a bad lot...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
