This Philips TV model FL1.10 goes to standby when switched on - after a brief flash from the LED displays. I'm guessing the SMPS is shutting down due to a fault elsewhere. Any likely cause?
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Dave Plowman dave@davenoise.co.uk London SW
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An Accountant.
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Have you checked the secondary side rectifiers?
Not uncommon on Philips gear!
Will do. Was hoping there might be someone familiar with these and knew the common faults.
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Dave Plowman dave@davenoise.co.uk London SW
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Google immediately finds this (which might not be a help)...
Also look at
-- Adrian C
The last Philips item I fixed was a DVD player, the secondary side rectifier that failed was a 3A leaded part, but holes and screen print were present for an alternative 2-pin TO220 rectifier - I had to guess the best course of action.
I opted for a 3A rectifier with faster Trr than the original rather than a higher current replacement - it didn't bounce.
Thanks - didn't find one of those on my search. Starting from the info on the second one, found the LOP transistor fooked
- a BU 508 - and replaced it. It then came out of standby to the accompaniment of sounds of arcing, smoke and smells. But not sure exactly where from as I powered down immediately. But guess it needs expensive replacements so probably scrap. Sad as it's the Matchline version in a decent looking box.
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Dave Plowman dave@davenoise.co.uk London SW
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Check whether it has a disc ceramic flyback tuning cap, they often crack and usually fail S/C - but could be in the early stage of breaking down.
Just to follow up, found the plug/socket at the tube end for the scan coils burnt out internally. Another tip from that site. Did a bodge repair on that PCB and soldered the ribbons in direct - and it's working fine. (I'd guess a 'proper' repair would mean a new tube. ;-))
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Dave Plowman dave@davenoise.co.uk London SW
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Sliced meat, otherwise no chance of making a sandwich ...
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A bread slicer.
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On Thu, 17 Dec 2009 16:53:03 +0000 (GMT), "Dave Plowman (News)" put finger to keyboard and composed:
Here are the circuit diagrams:
- Franc Zabkar
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Is the file available anywhere else?
Clicking the link seems to alternate between high number of people downloading - try again in 2 minutes, or "you have to be a premium user to download this file".
On Tue, 29 Dec 2009 17:46:51 -0000, "ian field" put finger to keyboard and composed:
- Franc Zabkar
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Thanks.
Bit late since it's sorted but thanks. I already have the service manual anyway. But what service manuals never give is the common faults - hence the post.
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Dave Plowman dave@davenoise.co.uk London SW
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