Question about Sanyo DS27910 27" TV

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Color I have had my tv for about 5 years and when i watch anything the color and contrast is dark.  Its almost as if the screen is just getting blacker day by day

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Re: color

Sounds like you may have cold solder connections,solder around flyback transformer,if you or someone you know can solder,also adjust screen drive control see if this will bring your picture brighter.It really is hard to tell you exactaly what your problem could be untill looked at by a repair shop.

Posted on Dec 26, 2007

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How long u have this RCA analoge tv?Around 10 years or more and used it like about 5 or 6 hrs everydays?Yes,than ur tv it is losing CRT tube radiation cohetion.As times go bye years in years out the tv CRT-(tv tube) radiation will slowly dying out,Tv actual pictures will lost some of it luster and it brightnesses to the tv auctual pictures.Brightnesses of CRT tube will get darker and darker until the tv actual pictures barely it is watchable anymore.Contrast,Brightness and Colors adjusting more will help some.But u have to take this tv aparts and take a Flat scerw driver turn up a little bit more of the tv HV-(high voltage) SCREEN button on the FBT-(flyback transformer) to make any big differences of the CRT tube brightnesses.The FBT-(flyback tranformer) is the big block of plastic with a red wire with a black cap hook up to the tv CRT-(tv tube).This adjustment on of the FBT,HV-SCREEN button will help the tv CRT-(tv tube) last another year or two.

Aug 16, 2011 | RCA TruFlat 27F520T 27" TV

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While watching TV - I heard a slight click noise in the remote and the screen color immediately changed color to predominately green ( still see blues and yellow) but red spectrum is not working ?? I have...

U have all the tools and can u also do basic soldering?Tv might have cold sodering joints on the CRT video board socket that connected video board and the CRT tube together.Must take tv aparts and resolders all the CRT holes sockets of the video board.Also resolders the Yoke wires R,G,B connections to the main board too.Should solved this problems.U can't do this,than u must hire a tv Tech to do the repair,sorry.

Feb 25, 2011 | Toshiba 32A33 32" TV

1 Answer

What are the menu settings supposed to be at for the color, picture, what do I do if the color is not right, pickish and green

Go to tv menu go to screen setting turn screen contrast to the max and screen brightness half midway point like 55.Tv real old like around ten years?Watches alots daily like 6 or 7 hrs a day?The tv CRT-(tv tube) might be to old,the radiation colors guns R,G,B insisde might not work as well as before.Have a reset setting in the colors setting?Go down to that press that,to restting for the factory colors setting.Or tries add more blue,a bit less green and red,see how that turn out?

Feb 05, 2011 | Panasonic CT-32G23 32" TV

4 Answers

I have a 21inch TV (LG golden eye) which is 10 years old from and now i am facing a problem that when i switched on the tv the standby LED of the tv blinks for a few seconds and then automatically off....

This is line output transformer problems. Before changing LOT,watch any dry soldering is there and also check vertical output ic is good or bad ?by replacement methode.
NOTE- if you know the protection pin, isolate the pin and switch on tv through 200watts bulb seriesly.then watch the symptomes.
Thanking you

Aug 04, 2010 | LG Standard (CRT) Televisions

1 Answer

Screen is too dark

with a flashlight at the back of the set often times there is an adjustment you can make WITHOUT having to open the set!!!

look for a little hole in the back of the plastic cabinet labeled SCREEN then with a flat screwdriver holding only the plastic handle, insert it into the hole and SLOWLY rotate until the screen brightens up until it is watchable.

This is compensating for age in the picture tube. you may get a few day or a few more years! of a much better picture.

If you start seeing some thin lines on the screen then back off you have gone too far. Do this adjustment with the brightness and contrast controls on the menu turned up all the way.

it is also safe to play with the focus adjustment right next to the screen if thing seem a little blurry. you will need two people one to watch from a distance for best picture.

Feb 10, 2009 | GE 31GT660 TV

1 Answer


have you changed contrast

Dec 11, 2008 | Proton MM2701VT 27" TV

1 Answer

Rca truflat 27"

You can take off the back of the tv. Look for the red wire at the top of the tube. Follow it down to the part that it goes into. On that part (transformer) there are 2 controlls. The one marked SCREEN, is the one you can turn up and watch the screen at the same time. If the tv shuts off, put that control back to the original position. If it brings up the brightness, then it is fixed. If not, take to a repair shop.

Jun 13, 2008 | RCA TruFlat 27F520T 27" TV

1 Answer

Rca home theatre big screen tv

# 1 above you have covergence problems ,there is a service flash from rca to fix your fault,ask your tv shop. fault # 2 above turn off the color and adjust your screen settings for a grey picture,set brightness and contrast to middle settings. # 3 fault read #1 cause if your auto focus will not correct you require service there is a harness connector that looses connection and causes several fualts on the 52" rca's you can repair the fault but if you miss the harness replacement you will do it again.

Dec 01, 2007 | RCA 32F531T 32" TV

1 Answer

Picture way too dark

Good day,

There is an adjustment on the rear portion of your units flyback. It controls the screen brightness. Check out on this.


Nov 28, 2007 | Toshiba 36A40 36" TV

2 Answers

Dark picture (HELP)

Open up the back of the set but be very carefull. Notice a large black block with a large red wire that runs up to the picture tube. on one side of that large block where the thick red wire is comming out of are two controls, one should be marked focus or F and one should be marked screen or S. With the set operating normally and not touching anything else, slowly turn the control marked screen or S clockwish till the picture gets bright enough. If you go too bright the set will shut down or you see small thin white lines so back down on the control. then touch up the focus and your good to go. good Luck.

Dec 01, 2006 | Toshiba 32A42 32" TV

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