Had one of these brought in today, totally dead.
Huge bastard, weighs a TON
(30kg / 70-80lbs easy), full metal construction (bezel, edges and rear cover)...
Popped the back off
Huge Chemicon caps on the main PSU board, Rubycons on the _sus boards... Beautiful *wipes tear*
Signal board, not terribly relevant (GP caps, etc)... And then my eyes find the stand-by supply
Made by Beko
Only two 105c rated caps (Panasonic) - and they're both on the primary side, near the 5Vsb PWM; all the others are 85c GP 
Fuse vaporized... PWM (FairchildSemi FSD200), half auto-melted off the board
Out of sheer curiosity, i googled for "Beko-PSU-03", one of the two model number markings on the board. The second result was this thread, here on Badcaps
Sure enough, that blue ceramic 2,2n cap had a charred leg, although not quite so bad as in the photos in post #6, maybe 1/4 of the sooty area in those pics. Fortunately, the transformer on this board seems ok (measures ~2.25ohms on the primary winding), and so do the RCD clamp components, but i'll replace the cap, just to be on the safe side.
And "also" sure enough, the FSD200 was shorted between Drain/Vcc and source/ground. Already ordered a new one, so this should be an easy enough fix.
Also, i'm planning on making an "extended heatsink" on a piece of extra copper-clad circuit board - gluing it to the main pcb, and "gullwing"-ing the three source/ground pins of the chip over it. I'll take pics, i promise
Pics - i hadn't snapped any "before" shots, but the only differences are that i managed to exfoliate the + pad on the underside of the bigger cap, and there's some leftover rosin from the solder wick i used.
Don'tcha just hate it when sublime engineering (see Panasonic plasma modules) are undermined by cheaping out on such (seemingly) minor details?
Huge bastard, weighs a TON
(30kg / 70-80lbs easy), full metal construction (bezel, edges and rear cover)...Popped the back off
Huge Chemicon caps on the main PSU board, Rubycons on the _sus boards... Beautiful *wipes tear* Signal board, not terribly relevant (GP caps, etc)... And then my eyes find the stand-by supply
Made by Beko
Only two 105c rated caps (Panasonic) - and they're both on the primary side, near the 5Vsb PWM; all the others are 85c GP Fuse vaporized... PWM (FairchildSemi FSD200), half auto-melted off the board
Out of sheer curiosity, i googled for "Beko-PSU-03", one of the two model number markings on the board. The second result was this thread, here on Badcaps
Sure enough, that blue ceramic 2,2n cap had a charred leg, although not quite so bad as in the photos in post #6, maybe 1/4 of the sooty area in those pics. Fortunately, the transformer on this board seems ok (measures ~2.25ohms on the primary winding), and so do the RCD clamp components, but i'll replace the cap, just to be on the safe side.
And "also" sure enough, the FSD200 was shorted between Drain/Vcc and source/ground. Already ordered a new one, so this should be an easy enough fix.
Also, i'm planning on making an "extended heatsink" on a piece of extra copper-clad circuit board - gluing it to the main pcb, and "gullwing"-ing the three source/ground pins of the chip over it. I'll take pics, i promise
Pics - i hadn't snapped any "before" shots, but the only differences are that i managed to exfoliate the + pad on the underside of the bigger cap, and there's some leftover rosin from the solder wick i used.
Don'tcha just hate it when sublime engineering (see Panasonic plasma modules) are undermined by cheaping out on such (seemingly) minor details?
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