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hydrosausager
Joined: 12 Jan 2016 Posts: 3
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Posted: Tue Jan 12, 2016 3:53 pm Post subject: Philips 19PFL5403/60 JSY-190406B (invertor manual) |
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looking for 81-BLI009-XX2(model JSY-190406B) circuit
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Tue Jan 12, 2016 4:51 pm Post subject: |
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Is B-Plus present and 'clean,' and is B-Plus and enable present at the correct points and times?
A dried out electrolytic? There's only one.
Bad bulb(s)? Less likely.
Bad transformer winding? Less likely.
Since you've already jumpered the fuse on the 'invertor,' and it ran a couple of months, then dual FETs are possibly defective.
Can I presume after jumpering fuse, that a every 5 to 10 minute heat build up test was done on major semi's, lytics (also check ones on power supply that feed inverter), etc.?
Looks like a relatively 'simple' inverter. All semiconductors should have datasheets available. _________________ You're over there, I'm over here. |
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hydrosausager
Joined: 12 Jan 2016 Posts: 3
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Posted: Tue Jan 12, 2016 5:25 pm Post subject: |
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jts1957 wrote: |
Since you've already jumpered the fuse on the 'invertor,' and it ran a couple of months, then dual FETs are possibly defective.
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Yes, you are right, some FETs realy defective, i have allready changed it, but the problem is what tl494 and lm393 (probably) died to, i changed them and another pnp/npn transistors but the main probles is, what when i was checking and changing transistors, i forgot to mark two of this and now i have 1 fet and 1 pnp and i realy dont know where is the plase for them on the board...
(sry for my english) |
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hydrosausager
Joined: 12 Jan 2016 Posts: 3
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Posted: Thu Jan 14, 2016 4:03 pm Post subject: Re: Philips 19PFL5403/60 JSY-190406B (invertor manual) |
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[quote="hydrosausager"]looking for 81-BLI009-XX2(model JSY-190406B) circuit
Please, anyone, help |
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jmmy147
Joined: 26 Feb 2016 Posts: 1
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Posted: Fri Feb 26, 2016 6:30 am Post subject: |
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Can I presume after jumpering fuse, that a every 5 to 10 minute heat build up test was done on major semi's, lytics (also check ones on power supply that feed inverter), etc.? |
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