Question about Samsung TSK2792F 27" TV

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Horiz sync After about 15 minutes set loses horizontal sync. I have no service info.

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Re: Horiz sync

Take the tv to a tech the tv is haqving a problem in the power and the horizontal can get a schematic from

Posted on Apr 04, 2007

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I have two Sony KV-27FS120, they have the same problem, 4 blink, both have no vertical & horizontal drive from IC001 jungle chip, and Q505 horiz output blow. Circuits between them look good. I replace...

Check very carefully for cold solders on horiz. drive transformer also replace the electrolytic cap that shapes the horiz. drive signal - if you have a scope and manual compare the drive signal shape.
Some times using poor after market horiz o/p's also causes the problem - does the o/p heatsink get to hot to touch or does the horiz o/p blow immeadiatly?

Oct 19, 2009 | Sony FD Trinitron WEGA KV-27FS120 27" TV

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Transistor d1878 get over heat

i have a sony kv-2197m3 i replaced tr D1878 tv turn on,but image it's bad in horizontal seize and tr D1878 was shorted again what's the matter? Post Solution

Oct 11, 2009 | RCA 27F530T 27" TV

1 Answer

Picture goes into horizontal lines while watching then you shut it off for 10 min. or so and it resets it self

solder connections in circuit.also solder the flyback transformer.if only 10 minutes you need to solder in the
horiz.circuit area.get a magnify glass and usually will see hair line cracks around the

Jul 17, 2009 | RCA TruFlat 27F520T 27" TV

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Picture uncentered and no on creen display

U have to trouble shoot for leaky capacitors in the video and horizontal circuits/Areas

Jan 07, 2009 | Sharp 25R-S100 25" TV

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Sony kv27v22 TV

check horizontal drive tramformer for intermitance is common problem some time blows horiz transistor to or vertical IC intermintence to

Apr 01, 2008 | Sony KV-27V22 TV

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Tv lack of horiz. width

hi there, lack of horiz. width means horizontal section problem, test some electrolytic capacitor at horizontal section and try video section. ty

Jan 27, 2008 | Standard (CRT) Televisions

1 Answer

Horiz adjustment on magnavox 20ms233s

I can tell you genericaly what the fault is. I have not worked on your particular model, or have the service manual for it.

It is not an adjustment. There are some electrolytic capacitors that typicaly go off value with age. These would be located in the horizontal scan amplifier area.

The set will have to be properly serviced in order to bring it back to normal operation. This is not something you can fix yourself.

Jerry G.

Dec 12, 2007 | Philips Magnavox 20MS233S 20" TV

1 Answer

RCA Guide Plus Gold Gemstar

The set tries 3 times to come on (3 blinks) if there a problem such as a short, it will cycle without turning on. Unfortunately your set is notorious for having bad flyback transformers. Most likely the horizontal output transistor is shorted as well. Common causes for your symptom are: LL05 (horiz out transformer) RCA part# 257805; TL 02 ( horiz output transistor) 2SC5148; and open connections on the printed circuit board at LL 04 and L14401 (coils) all of which can cause the horizontal output transistor to be shorted.


Nov 25, 2007 | RCA F32450 32" TV

1 Answer

Rolling screen!

The sync is automatic and controled by the uPC. It is strongly not recomended to mess with the factory service set-up. There are no so-called user adjustable controls for the horizontal and vertical frequency on this model.

The fault is usualy failed components in the sync seperator and sync amp sections.

An experienced TV tech can troubleshoot this and replace the necessary parts for you.

Jerry G.

Nov 17, 2007 | Sony FD Trinitron WEGA KD-36FS130 36" TV

1 Answer

Re; Model # AV27765

Wait one second here if the ic wasent producing horiz drive you wouldny be getting any picture.. Your saying the set is floating the picture side ways?? your gonna need a scope to see where your losing the horizotal sync pulse from my friend.. No insult intended but if you have no horizontal drive there would be no High voltage therefore no picture.

Apr 01, 2006 | JVC AV-27432 27" TV

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