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Equipment Repairs => LCD TV forum => Topic started by: brian on July 28, 2009,12:16:00

Title: Acoustic Solutions LCD26762HDF
Post by: 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.

Title: Re: Acoustic Solutions LCD26762HDF
Post by: sparky 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

Title: Re: Acoustic Solutions LCD26762HDF
Post by: nej on August 01, 2009,07:23:43

check polyester caps c877 and c878 both in primary

Title: Re: Acoustic Solutions LCD26762HDF
Post by: brian 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.

Title: Re: Acoustic Solutions LCD26762HDF
Post by: brian 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

Title: Re: Acoustic Solutions LCD26762HDF
Post by: brian on August 03, 2009,10:07:44

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

Title: Re: Acoustic Solutions LCD26762HDF
Post by: tv john 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.