Posts by sebp
39 total posts38 results
BEOWORLD PRIZE DRAW - JANUARY 2012
in General Discussion & Questions · Feb 1, 2012 06:43[quote user="PrizeDrawBot"] 3rd Prize - Bang & Olufsen BeoLab 2000 Link Speaker The lucky winner is.. Mr S. Pitkanen (seep) from Saint Herblain, France [/quote] Wow! Are you kidding? That's amazing, thanks so much Beowor…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 16, 2010 12:36You know, that's funny because i was just about to come and declare that whatever it is, it sounds too good to worry about, but of course you're right. I've spent the day listening it, and it's just amazing how nice it s…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 15, 2010 11:01[quote user="yachadm"]Check those carbon resistors which are in the Power supply circuit, especially those whose function is to drop voltage - you'll probably find a couple out of spec. Did you do a voltage check across …
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 14, 2010 18:29Thanks Mika, yes, for it's age it's pretty pristine, just old but no structural deterioration, not one bit of rust. Same for the speaker elements, not the smallest hole. Except for the fuse holders that i changed before …
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 14, 2010 08:01The next chapter ; i thought to report on how it went, so that maybe one day it can help someone else, in any way, as my good Karma payback. So, got the recap kit (thanks Martin !), nicely documented, and attacked the jo…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 6, 2010 12:21Magnificent. [quote user="yachadm"]A good (used) Fluke DMM and an ESR meter is a very comprehensive toolbox for troubleshooting electronics. Menahem[/quote] Thanks Menahem, but i saw the Fluke's while browsing for meters…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 6, 2010 10:57Hey, thanks Mika for your efforts 🙂 I actually had the manual of the meter downloaded, after having read something of the sort while googleing yesterday about AC measuring. But i wasn't able to decipher this in the manu…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 6, 2010 09:10[quote user="tournedos"]Try measuring some known pure AC signal, like the voltage over the dial light bulbs (should show 6-7 volts).[/quote] Well, the curious thing is, i just tried and it's a steady 6VAC, which on the o…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 6, 2010 08:44[quote user="yachadm"]Can you get a better multimeter to make sure that you get the right readings?[/quote] Oh, so it could be the multimeter, yeah i hadn't really thought of that. It's true that it's an el cheapo and ha…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 6, 2010 06:54Yeah, no, there's no heating in particular. To tell you, i didn't really notice anything unusual before this ripple measuring started. Here are the latest measures : - cap 514 : AC = 56.4V / DC = 25.8V - power cap (1000u…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 5, 2010 20:55Nope, seems it wasn't that after all, i get the same reading with a new cap (and the polarity is good). Could it be something before the cap, even if the cap itself was good ? Ok, so there is, what, the rectifier also th…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 5, 2010 07:27Erm, uh... that would be volts i'd say. Never done AC measuring before (nobody slap me please). I measure it with the multimeter at the range of 200V~ that, let me see if i get this right, measures at millivolts precisio…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 4, 2010 21:18Menahem, thank you for all the information. Nope, no scope for measuring, it's true that i'm not really well equipped for these kinds of projects. All i have is a low-cost digital multimeter. [quote user="Dillen"]Try put…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 4, 2010 08:44[quote user="yachadm"]It's well known that caps take time to break-in.[/quote] I was aware of the phenomenon with new caps, but i haven't changed any on this. Except for 4 transistors, a zener and a whole bunch of fuses …
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 3, 2010 07:24Just to report something strange, and maybe you specialists could explain it to me ; it has now been 3+ days that i've listened to the unit daily for lengthy periods (it plays practically all day), and the sound has sign…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Jan 2, 2010 11:40Thanks for the tip Menahem, this sure could have come handy (and surely still will) as i must've blown 10+ fuses while trying to find the fault. I'm sure to build one in the days to come. Sebastian
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Dec 31, 2009 10:53Yeah, i hear you, Mika. I was kind of submerged into getting it work, and while testing in short periods, the charming faults sort of jumped at my face. I've actually spent the day playing my iPod through it, and the his…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Dec 30, 2009 16:47[quote user="Dillen"]I suggest you replace the zener and both AC... transistors and check the regulator once more.[/quote] Done, done and done. Measuring against new components, it was evident that the zener and the tran…
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Dec 30, 2009 08:18😂 Oh wow, just when i thought i had understood something. I'll try and locate the parts, and will report for more. My my... Thanks Martin and Mika. Sebastian
Beomaster 900K & a novice needing help
in Imported Content (Unmapped) · Dec 30, 2009 06:58[quote user="Dillen"] No matter how you measure a zener, it should never read zero ohms on a meter. The reading one way should be around 0.6-0.7V (measured with a diode tester). The other can vary a lot depending on the …