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Technosonic LCD3251
Malcolm:
Does any one know if TV Tony is still available re 3251 power supply problems.
As many others, the photo of Alun's board could be mine.
Malcolm
sparky:
hi
tv tony still about he's got that much work on
to answer or he's at the pub
dave
Malcolm:
Hi Dave
Thanks for the reply.
I am looking at a set for a friend and wanted some advice or a repar.
I see that there has been some confusion re spares kit identification re F300 (fuse) and D200 ( on board logo) -D325 in kit ( a bead of some sort) either way an orientation would be helpfull for bothe diodes. The transformer shows a 4.6 ohm reading with no visible signs of shorting.
Malcolm
ps did any one ever sort this problem out this particular set has had the Complete power supply replace three time up to now!!!
sparky:
hi
try ohmsupplies they do a kit and i believe the transformer
that goes o/c
dave
Turnip:
Hi Malcolm,
Don't think you said what your problem is - Profilo troubles are usually either a shot 5v S/by chip - pretty obvious as it has a side blown out (which can kill the S/by TX) or more usually caps that bulge and drool - often down the 5v S/by area knocking out S/by chip some zeners and a few more bits, covered by some repair kits - done a few.
Lots of Quuq threads, some suggesting replacing a duff main board Eeprom when all else fails - Chris
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