Question about Televison & Video

1 Answer

The picture on my 32" philips CRT is green. The set is 4 years old and I assume the tube is faulty. Is there any adjustment I can make or what would be the repair cost of a new tube, including fiting?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers

Hello father,

Though it is possible that the tube is defective as you pointed out, may I offer an alternative diagnosis? Most CRT type TVs are driven by three (3) transistors located in a squarish PCB at the very rear of the picture tube. Each transistor is responsible to drive the red, blue and green guns of the CRT. If the green drive transistor is defective, the symptom you have described would also be the result. It is even possible that the transistor is not defective but any of its pins/terminals might have developed a cold solder.

Should this be the case, then the repair would be relatively easy (replace or re-solder as required) and comparatively low cost.

Should you venture a DIY, please be reminded of safety procedures/precautions when working with high voltages. Should you be uncomfortable going this route, perhaps your best bet would be to seek the services of a qualified professional.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Apr 03, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I own a Quasar SP-3235 32" TV. It has a slight green tint after 10 years of use. How can I adjust the color screens on this set? Is it a function of the remote like Sony TVs or do I need to remove


I would open it first and look, a lot of those had both the screen and drive controls on the PCB at the end of the picture tube, at least look there first.

You are dead on in looking for the screen controls, if you find one it should only be a tiny adjustment due to age and the Crt changing a bit.

Dec 13, 2012 | Quasar SP-3235 32" TV

1 Answer

Have a 27 " JVC


Hi ,
welcome to Fixya, it sounds like you may have a weak CRT (picture tube)
If the TV is over 6 years old that may be the case.
There are RED, Blue and Green color balance adjustments that you can try .
referencing the exact model one could see how it adjusts.
hope this helps
Roety

Mar 11, 2011 | Televison & Video

1 Answer

The tv is at least 17 years old.The blinking red light blinks 5 times ,then the tv picture goes off . The voice is still on


Five blinks is the error code for an AKB (auto kine bias) error. What this means is that the set isn't able to balance the three color guns (red, green and blue) of the picture tube properly, and it's blanking out the screen.

To get the proper colors, the signals for the three colors need to be balanced, and Sony sets have circuitry to do this automatically. Other brands don't, and when they go out of balance you see a picture that starts to show tinting or colors that are off. As the picture tube ages, it gets harder to adjust the balance until finally the AKB circuit can't anymore, and poof, the picture goes away. With a 17-year-old tube, it's not surprising.

There isn't anything that can be done to fix the picture tube, it would need to be replaced. But the cost of the tube and the work required to get it set up after installation makes it completely uneconomical to repair this TV. A new picture tube is nearly $200. Then special tools are required to set the tube up (a process called convergence), so you'd need to find someone to put it in, and possibly pay to have the old one disposed of. A new 32-inch LCD set is around $350 now. Treat yourself to a new one.

Jan 01, 2011 | Sony FD Trinitron WEGA KV-27FS120 27" TV

1 Answer

Colors going bad on my tv?


The picture tubes in Zenith sets (I assume it's a Zenith since you posted this with a Zenith heading, although it's also true for any set this old) were only expected to last around 7 years. Your description makes it sound like you are missing green, or that the green is just way low. This is a common sign of a bad picture tube. There are other possible causes, but tube failure is the most likely. The low replacement cost for small TV sets makes repairing this one uneconomical.

Get rid of the set and treat yourself to a new one.

Jan 25, 2010 | Zenith SY2068DT TV

1 Answer

Display color changed from green/ white now to Red and blue?


Hi and welcome to FixYa,

Your described problem is as you suspected, the green is missing. This is a common failure and is technically an easy/quick repair. Almost always, the culprit would be a cold solder or a faulty color drive transistor/IC. They would be located on the small squarish PCB (printed circuit board) at the very rear of the tube. Of course, worst case scenario would be a faulty CRT (picture tube), but that would be least likely.

Corrective measure would then be initially re-soldering above describe solder joints and/or replacing faulty transistor/IC.

Good luck and thank you for using FixYa.

Feb 21, 2009 | JVC AV-27530 27" TV

1 Answer

Phillips TV Sometimes Come's On No problem and Then Not sometimes with Green blinking light


I HAVE LOST THE TOP PORTION OF MY SCREEN, APPROX 2 1/2". IS THERE AN EASY WAY OF REPAIRING?

Oct 13, 2008 | Philips 32PT6441/37 32" TV

1 Answer

Out of focus tv picture


if you have already adjusted the focus pot on the line o/p transformer (a small transformer with a lead that has a plastic cap attached , and is typically clamped onto the top of the crt/tube BE CAREFUL DONT TOUCH CAP WHEN TV ON VERY HIGH VOLTAGES)
also could be your crt/tube is bad if so then scrap/recycle
cheers

Jun 16, 2008 | Toshiba Televison & Video

1 Answer

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.

Dec 26, 2007 | JVC AV-27230 27" TV

1 Answer

Loss of colour


With the set being 12 years old, I'm sure the picture tube is near the end of its useful life. You probably have a defective semiconductor, either an IC or transistor that has gone up giving you no color, but with the green picture, it is not likely worth repair.

Jan 02, 2007 | Toshiba 36AF61 36" TV

2 Answers

32" Toshiba television Mod. 3357DB


If im not mistaking I remember the toshiba 32" to have an on screen alighnment in the sevice menu.. and I would not recomend that anyone without the proper manual and tools to fool with these adj as I've seen in the past that a set had to be completely redone even the tuner alighnments after someone went in and tryed to adj the set., Now the green tinge you speak of is the CRT getting weak The best way to ajust this would be to see if on the picture tube pc board on the end of the Picture tube if it has any little control on it ? if it does look for the green drive and put on a b&w Picture. slowlty turn down the green drive control untill the pic look almost B&W and you probably wont be able to get perfact grey scale as the crt is weak . If theres no controls on the crt pcb then your gonna need a service alighnment manual and adj the green drive that way. Good Luck

Apr 24, 2006 | Toshiba 32A60 32" TV

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

48 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

72271 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

yadayada
yadayada

Level 3 Expert

69244 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...