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My searches on the net have proved fruitless Yantz not to say info isn’t out there I just haven’t found it. Here was my PM on this topic to Starfury: Ena1001d with that Delta from a quick look today I am suspecting it may be a Mains side problem.
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I would have that that even if shutdown protection circuits were firing to protect it, it should give some glimmer of life Our mains power here can be at times brutal, its killed a tv or two here. Anyway got a cheapie coming to replace it, so it will be a project just to know why it died.
Its an old HP box I was going to use to play with linux. Yeah nice of them to put a line filter IEC connector for mains in. As to the Caps they all appear to be the same except possibly for those 2 blue electro’s mid section. Don’t know the brand off hand, but sure someone does here Looks like I yank this one none too soon.
Really must pull the Enermax and check it That box now has the Gigabyte MB in it that I recapped. Same deal as willawake’s post on GB MB zx7 or something. JPG I’m not sure what brand these caps are, they seem to have some kind of company symbol, but that’s it http: No worries Yanz Found info via google which lead me back here to PeteS reply posted awhile back kc8adu mentioned hitachi thanks and that was the only other thing that kept falling out but no pdf’s or docs could I find: Japlytic has posted some info on pinout part schematic of the other chip DNA in the orginal post from “larrymoencurly” Delta proprietary chips?
Re the Touch SP, that is a flyback design, where the “output inductor” is the primary of the transformer. Those little ferrite rod inductors are just for high frequency spike suppression.
Unapproved X- and Y-caps, really skimpy heatsinks, rather small main transformer, primary and secondary wires bundled together using the fan wires, without reinforced insulation. Probably uses clones of Motorola’s MJE or MJE bipolar transistors, with no DC-blocking cap to keep the transformer core from walking into saturation due to slight pulse width variations. The smaller of the two transformers provides base or gate catasheet no obvious drive transistors, so the dnna1001d drive of the PWM is used for that function, ddna1001d means the base drive is kind of wimpy.
WTH is that leaded dual-diode-kludge?! I see two TO rectifiers and that datashfet The outer shell kind of gave it away, but this, probably for the th time, reinforces the fact that Fujjy’s are far too unreliable to be recommended.
What do y’all think about the Astec unit? Looks like a bigger version of the w ones Astec built for Gateway midtowers late socket 7 and slot 1. They were pretty bulletproof for me – full of Chemicons mainly. The Newtons they used sometimes later on weren’t bad either though.
What’re the maximum output ratings on that one? Page 9 of These two ICs are Delta proprietary parts. Unfortunately, I don’t have specs or pin-outs. The one on the primary side ?
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If the controller bd. The one on the secondary side contains an error amplifier, opto driver and a bunch of comparators with a reference for fault detection.
My suggestion would be to send an e-mail to Delta’s Datqsheet and Support office, either in the UK or the US which can be found on this webpage. Ask them to e-mail you a pin-out diagram and a block diagram of the two ICs