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Samsung LE40R88BD Clicking Relay
sparky:
hi
miss read posting look on inverter board check supply to
inverter and sm fuses
dave
daz:
hi
try resoldering the inverter transformer on main psu, if that fails warm inverter up with hair dryer (sometimes transformers go thermaly sensitive) if that works replace transformer or inverter.
good luck
daz
Philburnz:
Hi Daz,
Many thanks for your reply.
I have reflowed and heated up the transformer but have had no luck I'm afraid.
The back light shuts down in two stages within a second and the channel number fades awayat the same time.
I have checked the small transformers on the inverter and they all show the same impedence accross them. Do you know if the 8 pin ic U101 on the inverter marked A358F is in facr a LM358?
Any more ideas would be gratefully received.
Many thanks once again.
Phil
daz:
hi phil
is the inverter and the display shutting down? (check with a torch or connect scart to another tv )
check the power on voltage is coming from the av pcb to the power supply,
if this is going missing it may be an av pcb fault(they have been known to pack up),but if this is present and all the voltages are ok so your just loosing the backlight its more than likely the inverter is faulty (or a damaged backlight)
did this job just start out as a bellied cap fault(clicking)?
can not check the ic number as don’t have one in at the moment (there like buses)
check this lot out and get back to me
daz
tvhell:
Hi All.
I had the same problem as this. Have now replaced capacitors from maplin, reset the eeprom by shorting out as described earlier.
I am really pleased the set is now working, but it still has the problem of not being able to view in movie mode(acid like image??!)
Am not really botherd, so long as it keeps working!! Just wonderd if anyine else had found this??
P.S Dont give up in resetting the eeprom. I screw it all back together then read it took 30 times for some of you!
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