I have a JVC TV - Model AV-32WFT1EK. Recently the picture has become very dark. I have the brightness turned fully up and cannot get a bright picture. The Contrast is set at half, Sharpnes works OK, Colour OK as is the tint . Eco mode makes little difference. TV is approx 5 years old. Is there a manual method of adjusting the brightness. (I have been using my remote)
Does this mean that I have to remove the back of the TV? What does the flyback transformer look like?Does this mean that I have to remove the back of the TV? What does the flyback transformer look like?
I am having the same problem with my Konka FL2792U 27" Square and Flat screen TV. I was Playing PS3 on mine never had a prob. with it before and all the sudden it went dark you can still it but its really dark too dark to watch and enjoy even with all the settings wide open anyone know whats wrong with it nad the best way to fix it? lemme know thanks
Nick M.I am having the same problem with my Konka FL2792U 27" Square and Flat screen TV. I was Playing PS3 on mine never had a prob. with it before and all the sudden it went dark you can still it but its really dark too dark to watch and enjoy even with all the settings wide open anyone know whats wrong with it nad the best way to fix it? lemme know thanks
Nick M.
You can't post conmments that contain an email address.
An expert who has achieved level 2 by getting 100 points
MVP:
An expert that got 5 achievements.
Vice President:
An expert whose answer got voted for 100 times.
Sniper:
An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.
Expert
140 Answers
Re:
On the inside of the TV, on the flyback transformer there should be two controls. Turn the one that says "screen" very slowly clockwise while looking at the pix. The pix should get brighter as you turn it up- if you go to far you will see lines in the pix or the TV may shutdown.
Thanks a lot. It helps a little bit, but not enough. What else can I do? Please!Thanks a lot. It helps a little bit, but not enough. What else can I do? Please!
You can't post conmments that contain an email address.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Unfortunately, there is no easy fix for this. If it were a rear projection TV, I'd suggest a new bulb. Even on a Plasma there are things that can be done. But on a CRT, the repair for a dark screen usually costs more than replacing it.
I have the AV-27S33 model and in the rear to the right of the inputs are two slits and inside these slits are two screws. The top screw is the focus,the bottom the brightness.Your tv is a different model but it may have this same adjustment,if it does try turning the bottom screw to the right to increase the brightness.
There are two small holes on the rear side through which you can adjust focus and screen. Use a flash light and locate the two adjustable slots inside the holes. This part carries high voltage. Do not use a metal screwdriver to adjust. Put the TV facing a mirror so you can see how it works. Do not turn more than 1/8th of a turn. The focus control makes picture sharp or fuzzy. Screen control could change brightness. While watching the picture in the mirror, slightly adjust the screen control. Do not turn too much. If it doesn't work, then call a JVC authorized repair center.
My jvc 27" tv was so dark I could hardly see any night scenes, even with the bright all the way on. If you push the sleep button, let go, then hold down the video and display (together), the service menu will come on. Scroll down to #7 (too dark) and adjust the brightness there. Works immediately. Good luck.
How many years is your TV now? Usually TV has its life span, there comes a time that it happens. And need to look for a technicians, cause some of theme can still be repair by adjusting the brightness inside your TV.
Roger, if your contrast (sometimes called picture) and brightness controls are at max you can increase the tubes brightness by turning the "screen control" clockwise, be advised a little turn goes a long ways, don`t crank it too far or you will get retrace lines, you will have to remove the back from the set and follow the red wire down from the tube to the "flyback transformer" on the front of the flyback are 2 controls, focus and screen, do not move the focus control, this should fix your problem.
Open up the front of the set and find the screen controls and perform a grey scal alighnment by adjusting the red , blue , and green screen controls but be carefull and make sure you adjust them evenly or the picture will not look right. Good Luck
This sudden changes in brightness are caused by the change in voltage inside the tv,not in the outlet in the wall but inside the set,The changes are an indication something is going wrong and it needs to be corrected,the set does have a brightness limiter but it only works when the set wants to get brighter than normal,You need the assitance of a servicer to correct this problem.
Does this mean that I have to remove the back of the TV? What does the flyback transformer look like?
where is this located
i have hitachi
I am having the same problem with my Konka FL2792U 27" Square and Flat screen TV. I was Playing PS3 on mine never had a prob. with it before and all the sudden it went dark you can still it but its really dark too dark to watch and enjoy even with all the settings wide open anyone know whats wrong with it nad the best way to fix it? lemme know thanks
Nick M.
×