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Equipment Repairs => LCD TV forum => Topic started by: E.R.S. on November 16, 2010,18:36:21

Title: Samsung LE37A656A1F no sound or pic.
Post by: E.R.S. on November 16, 2010,18:36:21

Hi

I have a Samsung LE37A656A1F Stby light goes out but there is no pic or sound if you press vol or channel buttons the sbt light flashes all voltages are present out of psu i think it could be the inverter does anyone know what the "on" voltage should be to turn on the inverter tested the inverter coils getting about 1.4 k on all of them. Inverter type VIT71037.50 . Thanks.

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: Turnip on November 18, 2010,12:44:47

Hi ERS,

Just a thought, if invertor cuts, sound usually continues - have you checked PS voltages  ? Chris.

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: davenjax on November 18, 2010,16:05:39

yeah im with chris you would still have audio if the inverter was faulty.more like a psu fault from the sounds of things

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: E.R.S. on November 19, 2010,14:15:22

Update:

It is the inverter that is faulty, i had an Acoustic Solution lcd come in today with a psu fault and it had the same lcd panel with the same inverter as the Samsung!, fitted that in and it worked, also like you i could not understand why there was no sound when i fitted the inverter and went into the menu the customer had turned the internal speakers off! so that's one for you they must be using a surround sound system!, hence no sound. Steve.

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: davenjax on November 19, 2010,14:41:30

i stand corrected although not taking into thought the internal speakers were de activated good point well made

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: Turnip on November 22, 2010,12:44:44

Hi,

Thing is, will we remember when we get one - meself, top of the stairs - not a thing - Chris.

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: davenjax on November 24, 2010,03:19:34

hey chris havin a bad memory is great it means every set weve worked on before is a new challenge when we get one again lol

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: Turnip on November 24, 2010,12:40:46

Hi Dave,

It's quite a thought - can't remember what it was though - show me the way to go home - Chris.

PS - Who's Lol - friend of our old 'Buffy', perhaps ?

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: davenjax on November 24, 2010,17:00:22

sorry chris my kids use it all the time just tryin to be a cool dad l.o.l means laugh out loud .dave

Title: Re: Samsung LE37A656A1F no sound or pic.
Post by: Turnip on November 26, 2010,12:33:31

Hi Dave, and well said.

Visited a certain Interweb site where folks with a passion for non-foaming Soap give out daily thoughts on their continuous arm-pit activities.

Couldn't get a handle on it, though 'lol' was a frequent observation.

There again, you are one of those younger folks who have probably never yearned for a pair of 807's

Confess, started with CV6's, moved on to RK34's for that 'Wireless World'  Triode purity - the 50's were awful cool and rather quiet,  then on to wicked beam tetrodes for real power for them 'Silver Beetles'

Eventually, in the early 70's used 6 x PL509's push-pull, with ever so many BY127's as  voltage doublers to give a HT of 600v so that 'World of tomorrow' with Garner Ted Armpit and our 'Horace the unmarried' might be heard as far as Brum.

Bit silly, but at the time - seemed the biz - loved it - Chris.