Hi all I have this tv which was working fine last night got up this morning and it wouldn't switch on. After some research I found the problem to be the z sustain what was happening was the tv was turning on screen flashes then tv turns off unplugged the z sustain and tv stays on. So now I now what the fault is my question is can the z sus be repaired if so how can I find out what the problem is on it and what component on it needs replacing. Thank you in advance for all help received.
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Re: 50ps3000 z sustain
Posting pictures of the back of your tv showing the boards with clear pictures may help you more with fixing your problem -
Re: 50ps3000 z sustain
Not sure if these pictures are any good to youAttached FilesComment
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Re: 50ps3000 z sustain
Thanks all but it's sorted now after closer inspection I found some dry solder on the z sus board. Reflowed them and works perfect again thanks again for all advice.Comment
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Re: 50ps3000 z sustain
Cool beans never seen a double sided pcb like this get cold joints but nice one
Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: 50ps3000 z sustain
nice one
care to show via picture where u reflowed ?Comment
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Re: 50ps3000 z sustain
Where the lumpy bits of solder (if that's makes sense) are on this pic something just didn't look right compared to the other solder so with nothing to lose I just re heated the solder and it all flattened down plugged it all back in and came straight on no problems. Not sure if there is any underlying fault that could of caused this but it's working for now so I'm happy with that.Attached FilesComment
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Re: 50ps3000 z sustain
What parts are above that solder ?Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: 50ps3000 z sustain
Can't recall of the top of my head now but I think it was the red components (unsure of real name) by the big black thing if that helpsComment
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Re: 50ps3000 z sustain
Probably Polly caps. Strange but nice fix.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: 50ps3000 z sustain
Hot and cold cycles followed by ROHS solder and subpar soldering by the factory. Nice fix!Did I leave the soldering iron on?Comment
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Hi it looks like everything works don't know where to test except the 390v in the 2 capacitor in the hot side of the power supply and the weird 180v in the diodes in the cold side that should be discharged it is writin on the circuit no more you can read what is written on the circuit quite srrange color mixiing yellow and white
anyhow i couldn't t read anything else
the backlight is on strong and the screen does not get dark or very dark but no pictures
the mainborad feels a bit hott on the black part i test it to 52 degree's against 34 to 40 on the rest of it
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