Author Topic: Acoustic Solutions LCD26762HDF (Read 7456 times)

brian · « **on:** July 28, 2009,12:16:00 »

Hi,
Anyone had one of these, comes on sound o.k.,but plain dull raster, no o.s.d. After maybe 10,15mins.Pic. appears,set will then run fine till left off overnight. and then fault repeats. checked p.s. seems o.k. wondering if lvds cable?, supply to screen etc.
Thanks.
Bri.

Mulja tv repair portal · « **on:** July 28, 2009,12:16:00 »

sparky · « **Reply #1 on:** August 01, 2009,05:40:36 »

hi
check power supply for capacitors bulging or use hair dryer to
warm up caps then spray with freezer to see which is faulty
not to hot with hair dryer
sparky

nej · « **Reply #2 on:** August 01, 2009,07:23:43 »

check polyester caps c877 and c878 both in primary

Mulja tv repair portal · « **Reply #2 on:** August 01, 2009,07:23:43 »

brian · « **Reply #3 on:** August 02, 2009,05:59:44 »

Hello.
Thanks Sparky and Nej.
Hope to have a look at set today, will keep you posted.
Bri.

brian · « **Reply #4 on:** August 02, 2009,14:47:06 »

Hello.
Got round to checking p.s. C877/C878 are not fitted on this p.s. 17PW22-4, and unfortunately heating/freezing has no effect, When the set eventually does come on ,no amount of freezing will bring the fault on! Weird eh!
But leave it switched off for a few hours and the problem returns!!
The main board is type 17MB12-2

brian · « **Reply #5 on:** August 03, 2009,10:07:44 »

Hello.
Cured it!!
Turned out to be the lvds connection.
Cheers
Bri.

Mulja tv repair portal · « **Reply #5 on:** August 03, 2009,10:07:44 »

tv john · « **Reply #6 on:** August 10, 2009,12:09:28 »

HI Brian, I've mentioned before on this site somewhere, that I allways clean the LVDS plugs/sockets
if a LCD picture type fault exists. If that fails,then it's probably scrap because the main or scaler pcb
are usually expensive,if available.

Mulja tv repair portal · « **Reply #6 on:** August 10, 2009,12:09:28 »

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