 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.? | |
| 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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| Posted: Tue Jan 12, 2016 5:25 pm Post subject: |
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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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| 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. |
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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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