Question about JVC AV32F577 32" TV

2 Answers

Bottom part of screen off and on brightness on component input

When I am using component input from DVD player or what not, I noticed that the bottom of the screen wil go bright (not too bright though, it's tolerable) and then it will go darker (back to normal) after about 10 seconds. Then this process will repeat again after about 5 seconds. This happens in a clockwork and cyclic manner. This TV is only a year and a half old and I bought it brand new. This problem only happens when I use the component inputs. I tried different DVD players but they all do the same thing. When I use the composite for the video input, everything is normal. Thanks for any help!

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 54 Answers
Re: Bottom part of screen off and on brightness on...

You can try the other audio/video if your tv has multiple video input. Maybe your tv input RCA socket has looseboard. Need a repairman technician to fix it.

Posted on Apr 11, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert that has over 500 points.


    An expert who has answered 200 questions.

  • Expert
  • 375 Answers
Re: Bottom part of screen off and on brightness on...

Eprom settings are misadjusted for that mode.

Posted on Aug 30, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts.

Apr 03, 2014 | Aiwa TV-S2011 20"

3 Answers

Connecting dvd

First, are you sure the cable is good? can you try it somewhere else? Second make sure your DVD is setup to output via component and the TV is using the input your connecting to.

Jun 01, 2008 | Standard (CRT) Televisions

1 Answer

I have owned an emerson tv for two years now. All of a sudden the picture has become very blurry and white. It is not the cable connection and a DVD is also white and blurry. Even the input channels are...

you must open the back cover of tv, and then things you should do is set "SCREEN" adjustment on the flyback transformer. you must turn it counterclockwise to reduce and decrease the level of screen brightness. turn screen adjustment gradually until the horizontal blanking lines disappear from the screen. and blurred images will be sharp again

Aug 11, 2010 | Emerson EWF2004 20" TV

1 Answer

Red tint while using component cables

Disconnect component cable while observing screen, just to make sure that is your problem. If it is and you already substituted the dvd player and it still happens,, try replacing the cable, it may be defective. If it still happens there may be some kind of a processing defect with the component input of your tv, why not just return to RCA's

Aug 07, 2009 | Toshiba 27AF45 27" TV

1 Answer

T.V. screen is green with bright horizontal lights top to bottom

There are 2 possibilities of green screen in this model.
1- Driver circuit of green gun is defective. 2- Screen itself is defective.
Now I want to know, do you have TV repair experience and basic electronics knowledge to test and check above 2 sections in TV?

Jan 10, 2009 | Sony FD Trinitron WEGA KV-32FS16 32" TV

2 Answers

HS500, white/light at top of screen

I believe input 5 is hd input wich is different from the others
you may want to try hooking the sat to any component input to find out if there is any difference

Jul 19, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Where do i plug dvd vcr player into tv there r 3 sets of red yellow&white

Select an input set on the back (example "Video 2"), use the RCA cables to connect the video component player to the selected input. yellow is video signal, red & white are the audio. To view/listen, select with the remote using the button called "TV/Video" or something similar. Hit the button repeatedly until you are viewing the desired source.

Feb 28, 2008 | Proton NT-3460 32" TV

1 Answer

RCA F32650 TV-Input 2 -Can I connect both Composite and Component video at same time?

I think you are right about VHS up front.......One more option =
buy a seperate video input switch box..then you wouldn't need
to use front input ........T.

Dec 17, 2007 | RCA F32650 32" TV

1 Answer

Phillips 27PT9007D/17 Manufacture Date May 2007

Have you changed any settings or added
any new components to the set like a
dvd player etc

Nov 20, 2007 | Philips Magnavox 27MS343S 27" TV

1 Answer

Bright colors causes it to do crazy horizontal shifting.

It's always nice to have pictures when diagnosing a set over the internet. I've seen this problem before. I found CR14710 burnt and the focus block arcing from the bottom of the control. The capacitor and other components in the circuit should be replaced as well. They only cost a few cents and damage to them is a possibility. Hope this helps.

Apr 07, 2007 | RCA F38310 38" TV

Not finding what you are looking for?
JVC AV32F577 32" TV Logo

Related Topics:

26 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Standard (CRT) Televisions Experts

The Knight
The Knight

Level 3 Expert

66456 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

Are you a JVC Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides