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Tv picture has been shrunken down and we dont know how to fix it

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It depends on your brand of tv. Most tvs allow you to zoom in and out these days. You have to find this in your settings

Posted on Jan 20, 2013

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When CRT JVC TV is first turned on, the image looks shrunken and warped, eventually, the image looks fine. What to fix?


SMPS fault. Check and replace damaged component/s at it main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts. Do a search by type in the brand name of your device at its search box.
http://electronicshelponline.blogspot.com/
Check all the electrolytic capacitors.

May 26, 2014 | Televison & Video

1 Answer

Shrunken picture


HI!
can you take a picture to your tv to see exactly what happen to your vertical problem!? then you can post here thanks!

Nov 02, 2007 | Proscan PS56670 56" Rear Projection...

2 Answers

How do I make my tv pic full screen? My tv programs are shrunken to small screen...


GO TO MENU ON UR REMOTE CONTROL AND SELECT PICTURE SETTING .....
THIS OPTION WILL GIVE U THE PICTURE SIZE ON UR SCREEN U LIKE TO SEE....REMEMBER NOT ALL PROGRAMS ON TV ARE IN FULL SCREEN MOODE

Nov 28, 2009 | Samsung HP-R5072 50 in. Plasma HDTV

1 Answer

Need to know what parts to fix it



Read below and decide if you want to tackle the problem yourself if so I’ll help along the way with what info I have. If not contact the nearest repair shop armed with the info below.

A dead set (no picture no sound) can indicate any number of problems – Usually the set is in shutdown or protection mode – this means that the internal circuits have detected a problem with a supply voltage missing, drawing too much current, going over voltage or a short condition.
The first thing to do is power off the set unplug it for 5min. than replug and try again. This in effect resets the main micro and will sometime unlatch a fault and resume working. There are certain common problems based on the make model – for instance convergence output IC’s(CRT projection TV’s) can cause a dead set symptom in many models. Vertical output IC failure can also cause the same symptom (CRT standard and Projection).
The only way to determine the real cause is :
By an educated guess based on experience or by directly troubleshooting the set – checking fuses, measuring voltages and checking for shorts. Many of the intermittent problems such as, int.(Intermittent) no sound or picture, int. picture shrunken or misshaped. These problems are generally due to cold (bad) solder joints (all TV’s and electronics) that break down under slight temperature changes or vibration and are usually verified by physically tapping the suspected area on the circuit board, or by quickly heating or cooling a suspected component or area ( cold spray and hot air gun). The other main culprit is leaky or dried out capacitors or capacitors that change value depending on temperature. These can sometimes be seen as bulged or leaky and have an acrid odour. Be sure to vote/rate me if this helped Thanks!

Oct 05, 2009 | Philips Televison & Video

1 Answer

Picture appears concave and shrunken and pulses in size


Replace Both of your STK convergence ICs STK392-570 If this is not number on your s use what it has on them. you can call MATs 1-800-628-1118 o Main STK is what is going bad when IC goes out all together TV will shut down and will not come on. So replace BOTH STKs ASAP! you will also need Heat sink compound to put on back of New ICs.

Aug 19, 2009 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

No sound or picture on magnavox tv


Hi and welcome to fixya, it is the colour wheel problem,,,,,,,,,this is common problem please check it ...it may be also cathode ray tube... thank u.........

Jun 03, 2009 | Philips Magnavox 51MP392H Rear Projection...

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Screen is all shrunken and in one corner...Convergence Problem... i think


I had the same issue. The screen would shrink and then expand over and over. After thrity minutes it would correct itself. 
After a few months of doing this it just broke - no sound and no videe but the power light was still on. 

I searched these forums but did not find clear instructions or kits on how to fix it. I gave up and called in a repair tech. He fixed my TV in less than 30 minutes. 

To help others I documented the fix and created a repair kit and step by step quide on how to fix the problem. You can find it here. http://www.magnavoxhelp.com



Apr 18, 2008 | Philips 9P6040C 60" Rear Projection...

1 Answer

Picture


readjust the fucos and screen at the flyback.if not replace your horizontal trasistor,hope this will help

Feb 08, 2008 | RCA F20TF20 20" TV

1 Answer

F36650 No power, high squeal even without turning on.


CaptC, those sets are infamous for that problem, you need to replace the following parts:
Flyback Transformer part # 257805
Horizontal output transistor part # 2SC5148
there is a coil off the base of the driver transistor I think it`s L4401 that should be removed from the set and scrape the wax off the legs then re-install and re-solder it and you should be good as new, good luck

Nov 27, 2007 | RCA F36650 36" TV

1 Answer

Mitsubishi CS-27205 shrunken picture


Good set...worth repairing vertical circuit.....in shop...
about 100.00........................T.

Nov 15, 2007 | Mitsubishi CS-27205 TV

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