AcSol LCD42805HDF - Vestel

[Turnip]

Hi Folks,

  Have one of these in where the PS has popped (17PW16-2) around the PFC area, blowing the top off the PFC drive chip. Anyone with a shematic ?

  In hopes - Chris.

[daz]

hello chris
this is the closest one ive got a 17pw20,there not the same but ther are some similarities.

[daz]

just remembered,had this fault before,
check/change
IC802-FAN7529
R823-15R
R829-0.22R
SMOOTHING BLOCK-220UF 450V
BRIDGE
Q813+Q814-FQPF13N50C
Q803-FQPF9N50
good luck
daz

[Turnip]

Hi, and many thanks Daz,

   Was just about to reply that 'Ohm Supplies', and 'Wiltsgrove' do repair kits - so probably it must be well known failure. Wilts being a fiver cheaper - as ever. 'Wiltsgrove' now show low ESR caps useful for Profilos - they don't actually show any stock yet, but the thought is good.

  Thanks again - Chris.
  

[Turnip]

Hi Folks,

  Kit in and fitted, notice 'Wilts' kit seems to be for both PFC and S/by faults. Note that an FSD321 is provided and guess it can pop it's top like FSD200 and 210's.

  In my case, discovered that the main cap 220/450 was totally O/C - though it looked OK. No-one seems to have any stock apart from Farnell/CPC

  Onwards - Chris.

[menorcarob]

hi

did this fix your problem as i have this problem, which sounds similar,
i have a technika 42-207 lcd and it has a 17pw16-2 psu, the set when pluged in has the blue led at the bottom and a blank black screen with no sound, when i change the channel the blue led goes out for 5 seconds and the screen flashes for a nano second them the blue led comes back on. any ideas?

[epi]

Check Download section, there's a 17PW16-1 schematic.

Frank

[menorcarob]

will do thanks