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Philips 19PFL5403/60 JSY-190406B (invertor manual)

 
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hydrosausager



Joined: 12 Jan 2016
Posts: 3

PostPosted: Tue Jan 12, 2016 3:53 pm    Post subject: Philips 19PFL5403/60 JSY-190406B (invertor manual) Reply with quote

looking for 81-BLI009-XX2(model JSY-190406B) circuit
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jts1957



Joined: 24 Nov 2008
Posts: 2472
Location: Far, Far Away

PostPosted: Tue Jan 12, 2016 4:51 pm    Post subject: Reply with quote

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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hydrosausager



Joined: 12 Jan 2016
Posts: 3

PostPosted: Tue Jan 12, 2016 5:25 pm    Post subject: Reply with quote

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.

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

PostPosted: Thu Jan 14, 2016 4:03 pm    Post subject: Re: Philips 19PFL5403/60 JSY-190406B (invertor manual) Reply with quote

[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

PostPosted: Fri Feb 26, 2016 6:30 am    Post subject: Reply with quote

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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