Question about JVC AV-27230 27" TV

1 Answer

How do I decrease the amount of green in the picture?

The color on my set has gone screwy, and I've been trying to fine-tune it to get it back to normal, but no matter what I do, the picture is still too green. Perhaps I'm adjusting the wrong things. What do I need to adjust?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 71 Answers
Re: How do I decrease the amount of green in the picture?

Unfortunately this model has a bad CRT. If is 3-4 years old and the greenish picture is in all inputs, for sure the picture tube is gone. If the picture is green only in component input check the connections for the blue and red cables.

Posted on Dec 30, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Color has gone fist to green then to red Before the color there would be a pop with a flash off and on for 3 - 4 weeks. Then there was a louder pop and the screen turned green. There still was some tune...

This can be due to sparking from the EHT and so it is important that you open the set after removing the power to check. Clean the EHT, the HT wires and the CRT anode on the tube.
The pop might be the spark and guns seem to work with a bias when this happens, check on the CRT board on the base of the tube.

Oct 27, 2011 | Sansui DTV2760 27" TV

1 Answer

Screen turns green The picture and sound are fine when I turn on the tv. After about thirty seconds the screen turns green and then turns off and the power light blinks.

Sad to say, but that's one of the ways a picture tube can behave when it's gone bad. After it warms up, one of the wire elements in the neck of tube sags and touches something it shouldn't. As a result you're seeing the green screen, and then the set shuts down for safety because of voltage feeding back. The only way to repair the set would be with a new tube, and that's completely uneconomical. You can buy a new 32-inch LCD set now for less than the price of a new tube, not including the labor to install the replacement and get the color alignment (convergence) set up.

Mar 08, 2011 | JVC AV-32F704 32" TV

1 Answer

Tv out of foucs

These procedures are from the owners manual, go into menu and then picture quality and then: Convergence The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’ images are precisely aligned, they create the color images you see on the screen. Over time, the picture can drift out of alignment (this is normal). If your picture seems fuzzy or has a yellow tint, using Convergence could correct this misalignment. Only one convergence is needed for all inputs, regardless of the signal format. Note: Make sure the TV has been on for at least 30 minutes (TV needs to warm up for best results) before starting Auto Converge or Red/Blue Centering. When you select the Convergence feature, a submenu appears with three options: Auto Converge Automatically aligns the projection lenses to self-correct color images. You’ll see flashing squares of color dance across the screen (this is normal). Note: After performing auto convergence, use the Blue Centering and Red Centering menus to fine tune convergence in the center of the screen, if necessary. Blue Centering Aligns the blue and green images to fine-tune the picture. Red Centering Aligns the red and green images to fine-tune the picture. Note: The ability to change channels is disabled when adjusting the convergence options. The TV must be tuned to a usable signal to converge the picture.

Apr 23, 2010 | RCA HD52W58 52" TV

1 Answer

Toshiba tv 2151tb how do i tune in stations

Toshiba TV 2151TB Tuning
Press remote button adjacent to the picture brightness button.
The symbol of a clock appears.
Press the button again and the >>> symbol appears, this is for course tuning.
Touch the Increase Volume button and auto tuning starts.
When a station is found two green underlines appear.
Type the station number i.e.for 2 type 02, this stores the station.
Touch the Increase volume button again to find the nexr station.
Upto 39 stations can be stored.
Fine tuning of any station is achieved by pressing the tuning button until three blocks sysbol is displayed.
Use the Increase/Decrease Volume buttos to fine tune the station.

Feb 24, 2009 | Toshiba 19A26 19" TV

1 Answer

Color problem

Please fine tune those B/W channels to obtain color picture. If TV is more then 4 - 5 years old, it needs resoldering in tuning area or might need replacement of IF block.

Aug 01, 2008 | JVC AV-21meu 21" TV

1 Answer

Too much yellow in picture

The problem with the set is that the blue gun has gone weak, and not emitting at par with red and green guns in your picture tube. Turn of the blue screen and get the grainy display on the screen (detach the cable) and enter into service mode to fine tune until you get a perfect or black and white grain pattern.

Dec 19, 2007 | JVC AV-27230 27" TV

1 Answer

Color distortion

Problem on CRT board, this is the board on the back of the tube. It has a open transistor for the green.

Oct 08, 2007 | Toshiba 32AF43 32" TV

1 Answer

Green blur bot-R and up-L corner and no audio

If a standard TV has color splotches in 1 or 2 corners of the screen, it is possible that a large magnet, such as a large speaker, is or was near the set and has magnetized the picture tube. The set has a built-in degaussing coil but it is small and will only demagnetize small magnetic fields. Make sure there are no magnets near the set and if the colors are still off, have the picture tube demagnetized with a strong portable demagnetizer. As for the audio, when there are audio output jacks on the back of the set then there is usually an option to turn the speakers off. Some sets have a switch somewhere and some sets have a setting in the audio page of the on-screen menu. Look for a switch or go into the menu, navigate to the audio page and look for a speaker setting (ON / OFF) and make sure the speakers are set to ON.

Aug 28, 2007 | Konka K2386U 23" TV

1 Answer

Bad color .

Turn the set on without an antenna, so there is only snow on the screen. Measure the 3 cathode voltages at the CRT, red green and blue. If the 3 voltages are about the same, around 175 volts, then the CRT is bad (purple picture means bad green gun). If the red and blue are around 175 and the green is over 200 volts, then there is a chassis problem, usually the video output transistor itself has gone bad or come loose.

Oct 24, 2006 | Zenith A25A23W 25" TV

4 Answers

Screen green and purple in two corners

I am in agreement with the second solution. TVs, when moved from one location to another have a tendency to show color patches in the corners. A few days of usage, and the auto degaussing circuits will clear the problem. Also make sure that there are no Magnet Sources nearby (Un sheilded Speakers, some Power supply of amplifiers, A 2-in-1 music system, your kids walky-talky toy, etc.) Pravin

May 26, 2006 | Samsung TXN3245FP 32" TV

Not finding what you are looking for?
JVC AV-27230 27" TV Logo

Related Topics:

75 people viewed this question

Ask a Question

Usually answered in minutes!

Top JVC Standard (CRT) Televisions Experts

The Knight
The Knight

Level 3 Expert

66482 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