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Post by Casethecorvetteman on Apr 18, 2016 2:26:04 GMT -5
What type did you order? I used all Panasonic FR and FM in the SMPS, the difference is pretty significant to the way it was. For one it had stopped working properly, it would show a fan fail error after 30 seconds and then shut down, found the 2 470uF 50v capacitors related to this on the sub board were leaking. Secondly, the voltage drift of the 17v line was huge, more than 1v between a black screen and full white, now it is around 0.3v at the most. Its made quite a difference to the stability of everything else too. Welcome to the forum  It does make the projector much more stable. After I finished my SEOS 808 it was rock solid. Now working my way through the 919. I guess we need to remember a lot of these projectors have over 20,000 hours on them. The control board on my 919 has clocked over 50,000 hours. Its the next board I will recap. My Cine 9 is the most stable its been since i re-capped that SMPS, it was bad enough that convergence would drift between dark and bright scenes. |
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Post by gregstv on Apr 18, 2016 3:11:46 GMT -5
Great stuff. I don't get it when some people don't want to recap projectors. For a couple of hundred dollars its worth every cent. I would not be surprised if this stops a lot of faults occurring. It really brings the chassis back up like new. They do the same thing with audio gear and get great results.
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Post by hulio on Apr 18, 2016 4:24:55 GMT -5
Yes, indeed. It is worth replacing an electrolytic capacitor even after 500 hours. They leak, dry, or slowly start working out of their tolerances. And the run-hour of the projector is not the only indication. Folks keeping their machines in storage for one year or so, should think of replacing some caps too. Plus, nowadays, one can find caps with better specs (low ESR) than twenty years ago. Like you said, you just give the projector a fresh bill of health.
But I guess, not only that some people don't want, but they don't have the skills of components soldering.
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Post by Casethecorvetteman on May 3, 2016 23:52:36 GMT -5
Hi Case, All my 909 are late 2003 build. They were in service till end of 2008, running 8h a day. Several boards got exchanged/repaired/upgraded, so it's a mix of newer and older boards. Since my 909 never ever will run 8h/day again, I just orient on the standard programm off the supplier. I use mainly Panasonic FR, Chemicon LXS and KXJ for >=400V, plus some FC for values which are not covered by the FR series respectively the supplier don't offer. Never had a problem with my 10 SMPS1, all working flawless, but I didn't check for ripple/noise. Barco seems to changed the star type to normal radial type on the newer boards with R761342 7-xx. Some pics of the different SMPS1 I got here:     Those star pin capacitors, are those positive on the centre pin and negative on the outers? Thanks  |
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Post by barclay66 on May 4, 2016 2:29:33 GMT -5
Those star pin capacitors, are those positive on the centre pin and negative on the outers? Yes. |
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Post by Casethecorvetteman on May 4, 2016 9:24:16 GMT -5
Those star pin capacitors, are those positive on the centre pin and negative on the outers? Yes. Thanks mate, i couldnt find any info on them in the quick search i did. |
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Post by barclay66 on May 6, 2016 1:54:58 GMT -5
Look for "Roederstein EGD datasheet". On my search it was the first link...
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