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Old Grundig 28" TV - Picture blurring

I have an old Grunding 28" TV with blurring picture problem. The technician told me that the 'focus piece', a small flat item at the back of the picture tube, is not working and has to be replaced. He doubted whether I can get it in Bangalore, where I live.

Can anyone help me located this piece?

Alternatively, what can I suggest to the technician to do?

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6 Suggested Answers

silly girl
  • 513 Answers

SOURCE: TV focusing problem

It's good that you know how TV's can bite, I'll still have to post this in case someone having your problem and reading isn't aware of this and feels lucky- If still under warranty or if you have no electronic repair experience you should take the set back to the shop or to a repair person. Some of the solutions described below can be dangerous, TV's are very hazardous to service. Even when plugged out, TV's can store very high voltages. could be a problem with the screen potentiometers block. should be located on the chassis close to where the HT lead passes on its way to the picture tube. Good luck

Posted on Mar 16, 2006

techman
  • 3130 Answers

SOURCE: Tv out of Focus

Well you did start out good, thats cool, now we have to define focus, Is ir blurry around the edges as well as the whole Picture? If it is, it could be the picture tube, A bad solder connection on the tube socket, and yes it could also be the flyback transformer.

Posted on Oct 06, 2006

  • 308 Answers

SOURCE: JVC AV-32F704 32" TV Picture is blurry - cannot read any writing on the screen

You didn't mention if you saw fine white diagonal lines running through the screen from top to bottom. If so, you likely have a shorted Picture Tube which is not usually fixable. If there are no lines seen running through the screen, then it is possible the High voltage transformer which also has a screen voltage and focus control built in that could be bad. I would expect the cost of that part to be about $100, so the repair cost total could approach that of a new set I would guess.

Posted on Apr 12, 2007

  • 1 Answer

SOURCE: Replacement picture tube for JVC 32" AV32F476

Bought a new tv !

Posted on Apr 25, 2008

  • 1 Answer

SOURCE: philips TV sound on but picture fades to black

Philips TV. was working fine but now picture fades to black. sound is on. If we turn unit off/on picture returns...but will fade again. can fade one minute later or ten minutes later...unit id about 5 years old. 29 inch. (tube flat screen)

Posted on Sep 13, 2008

bobjrdns
  • 84 Answers

SOURCE: picture tube

no you have no vertical bad chip ic

Posted on Oct 21, 2008

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1 Answer

Picture blurred


blurred picture can be adjusted,and sometimes replacing of crt socket will solve the problem.
this is tricky so i've advice you to follow what i've said strictly.
Open the back cover of your set (make sure that you unpluged the unit first).
Look for the flyback transformer (it has a sunction cup connected to the picture tube).
You will see an adjustment knob on it, it mark focus but wait before touching,mark it with your pentel pen,marking the original location of the knob is important because that is the factory align.
After marking get an screw driver w rubber insulator as a handle to avoid an electric shock,this will be used to adjust the focus on the flyback knob.
Turn on the unit and hooked it up by your dvd player.
Play the dvd so that you will see a picture on the screen.
Pause it with a picture with characters.
Now you can see the blurred picture?
Try to adjust the focus on the flyback back and forth minimal turn only.
There's a reaction?Yes- continue to get a perfect picture and youre done.
There's a reaction?No- back the knob on its original position.
Your crt socket is faulty.
try some helped of your technician or people knowledgeable of disoldering and soldering technique.
Pull the board on the crt socket.the socket which attached to the tube is the one you are going to replaced. I've adviced you to observe first and familiarized what are going to dis-assemble because you will do the same when you replaced a new one.
After replacing your crt socket,picture ok?Yes-you're done
After replacing your crt socket,picture ok?no-picture tube is faulty.........

Jan 02, 2011 | Sony FD Trinitron WEGA KV-34HS420 34" TV

2 Answers

Grundig TV - Colours all mixed - still have fullpicture


Hi rosscop

You have a magnetic interference problem. First, have you put any magnetic objects like speakers near the set recently. They will cause this. Turn the set off at the wall and wait for 15 mins for the PTC device that turns on the degauss coil to cool and operate. It is the loud burst of hum you here when you turn the set on from cold.

0083efa.jpgThe PTC is a postive tempeture coefficient that allows alot of current to flow at first, heating up as it does, and then slowly less current as it heats. This is why you need to turn the set off and let it cool. If the problem remains The PTC may be faulty allowing too much current to flow and upsetting the magnetic flux about the tube. If you dont have the skills you will need a technician to sort it out for you.

Aug 25, 2008 | Grundig GF70-600 TV

1 Answer

Blurred picture


Is it a tube TV or a flatscreen? If it is a tube then it is possible to correct this, however I'm not sure what caused it. Take the back off the TV, and look for the flyback transformer. It is the unit with a red wire coming out of it, going to what looks like a suction cup on the tube. On the unit there should be a small knob labeled focus. Try adjusting this. If it is a flatscreen, sorry, I can't help.

Apr 14, 2010 | Sharp 27SC260 27" TV

1 Answer

JVC 32" CRT TV BLURRED PICTURE POOR TEXT QUALITY POOR IMAGE DEFINITION CANNOT IMPROVE USING NORMAL COMMANDS


Seems to me you should have to contact a technician to adjust manually the circuit side of it. Usually the screen and focus control knob on the flyback to adjust the settings.

Sep 23, 2009 | JVC AV-32D305 32" TV

1 Answer

Certain aspect of my sanyo tv are very blurred


This problem requires adjusting the Focus on the flyback . Turn the tv around and look for adjustmen slots on the back. If you can see them, use a nonmetalic small srewdriver and slighty adjust the top or left one. Be careful, it is the high voltage area

Sep 15, 2009 | Sanyo Standard (CRT) Televisions

2 Answers

My RCA TV guide words is blurred but the


There are 2 things you try. go into menu to picture setup scroll down to sharpness,back this setting all the off. If this doesn't do it, go to back of the set on right hand side, if you can see focus slot adjust it slightly.

Sep 06, 2009 | RCA F25654BC 25" TV

1 Answer

Blurred picture


I would power on the T.V. and go into the menu of the T.V. most modern ones within the last 8-10 years usually have a menu option to reset to factory settings. See if you can find this and try it.

May 30, 2009 | Standard (CRT) Televisions

2 Answers

Tuning a Grundig Tele Pilot 750c Television


It might be an old hotel tv. Try this, it worked for me

http://www.tvtuning.co.uk/makes/grundig.htm

basically you hold the i button whilst turning on the tv.

ta

Jan 07, 2009 | Grundig GF70-600 TV

1 Answer

Tired with this sony tv


Sony doesn't want anyone to see a poor picture on a Sony tv so they have a circuit that blanks the video if there is a weak picture or any other problem concerning picture quality. My Sony factory Instructor told me this many many years ago. I'm feeling old...but anyway you need a technician. Sorry.

barneyluc

Oct 03, 2008 | Sony FD Trinitron WEGA KV-36HS510 36" TV

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