I have a TEK 54cm colour TV. It makes a reddish screen and lines running parallel on the screen! Audio is still fine but what I cant understand is the unusual colour! I tried adjusting the tranformer but nothing positive happens. May you please tell me Which components are responsible for the problem.

Thank you

 

Justice,

Are the lines red?
I could not find information on your TV. Is it CRT?

 

What you are seeing is typically retrace lines. If it is CRT, might have a weak picture tube, might try adjusting the screen control on the flyback transformer. If that dont work, try reducing the drive to the RBG pots on the circuit board on the back of the pix tube, if it has one.

 

Thank you for the reply, I've tried to adjust all the controls on the tranformer but it couldn't get better! It doesn't have anything adjustable on the circiut board on the pix tube! instead it has three resistors that get very hot on that circuit.

 

Sounds a lot like maybe a similar problem as zenith TV's. It must be a crt probably toast. Possible you have shorted drive transistor most likely it will just continue some tv repair shops have a Tube restoration box ? To me it's a waist of time. If you can get them to do it for free it's a lot of fun to watch.

__________________
Truthiness Monkeys : Obedience, Ignorance, Fear.

 

Yeah, sounds like a bad pic tube, maybe you could find someone with a pic tube rejuvenator. I used to have one, was a heath kit. Might be able to find one off Ebay. But best bet is to just replace the TV. Or sell it on ebay.

 

Everbody sells their defective products on E-Bay.
Does anybody sell anything on E-Bay that works properly??

__________________
Uncle $crooge

 

Well when you sell it on ebay, make sure you tell them that the pic tube is bad, maybe someone that has the same model might have a bad board and buy it, never know. People buy the strangest stuff on ebay.

 

Bad advice. CRT rejuvinators may make the tube last whole day after it leaves the repair shop.

Selling defective merchandise on Ebay shows a disregard for your fellow man.

Getting the CRT rebuilt is an option but, seeing as how new video interfaces are so economical, buying a new is probably more prudent.

 

I did not mean to offend.
But let me clarify. I have used rejuvinators many times in the day, and had crt's last years. But true, depending on the shape of the CRT, it may not last long.

I in no way support cheating anyone selling defective or otherwise,merchandise. i merely meant that someone may want and could use the good chassis. Just like i might buy a Tek 7704A scope on ebay that has a bad crt, i could use the rest of the boards. Instead of trashing it, someone could use the parts.

I did not say to get the CRT rebuilt, i said to replace the TV.

Just wanted to clear things up.

Cheers, Dave

 

You didn't post your location. Are you aware that in many places analog TVs are obsolete within a few years? Tube type TVs waste a lot of power anyways, have you considered recycling it?

 

Just like Plasma to be replaced by LCD's. I'm not going to buy one yet they'll have to pry my CRT outta my cheap cold hand and replace it with an LCD.

__________________
Truthiness Monkeys : Obedience, Ignorance, Fear.

 

Often less power than a Plasma!.

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PIC programmer software, and PIC Tutorials at:
http://www.winpicprog.co.uk

 

I bought a 2 carat diamond solitaire ring off of eBay for my wife. It worked, despite that it doesn't require batteries, no electronic components, no programming or alignment. It didn't even come with an operator's manual, let alone a service manual. It's been working daily, flawlessly now for many years. Considering that, I can't say anything bad about eBay.

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Don't make me reach through this monitor to slap you a good one!

 

[quote=HiTech]I bought a 2 carat diamond solitaire ring off of eBay for my wife.
[quote]
Did you have it appraised? Was it glass?

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Uncle $crooge