At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
It is the video card (most likely located at the center of the TV). A burned out resister (or if there is variable resister make adjustment) needs to be changed. If there is capacitors, check them too.
Clean the end caps of the fuse with a cotton swab soaked in rubbing alcohol, and check your measurement again. Dirty air (especially in a household with smokers) can leave a film on high voltage parts that makes it hard to get a reliable resistance reading. Also connect the test leads directly together to verify they are good. If I'm suspicious about resistance readings in this range, I'll touch both leads to the same end of the component to verify I have a clean connection.
Very low current fuses may have a higher resistance, but typically the resistance for the line fuse on a TV set is less than 0.2 Ohms. It's very unusual for them to go to a higher resistance state without blowing.
Before you buy a new lamp, use an Ohm meter to test the across it's contacts for continuity. If the test shows the lamp's circuit is pen (infinity resistance reading on the meter), it will give you more confidence that the lamp is the problem. Also, look for blackening or obvious failure in the filament to confirm it. As has been said, the lamp has a finite amount of run-time before it fails. Think of it as a feature that makes the projection television much easier to keep running indefinitely than a flat panel TV.
If the set has a menu button on it that may be defective (happens often) and the only way to prove it is to gain access to the tiny switch it activates and unsolder it.
If disconnection of the switch cures the problem you have two choices---use it only with the remote or locate a replacement micro switch to replace that one.
If it was doing it all the time---constantly a resistance check with the keyboard out will show if its bad----resistance readings across those switches should read very very high resistance.
I used to salvage a lot of them out of new sets that were destroyed and had been written off---very hard to order just a switch for most sets as if available they only sell the whole keyboard with all the buttons on it.
U have all the tools and understanding basic electronic and also can do basic soldering?Yes.The tv power supply board,that the board,where the power a/c cord plug into it.Check the whole tv power supply board carefully for dying capacitors components parts.It is usally have bulges or puffing up capacitors parts indication of components capacitors parts are dying and needed replacement.Replacement for those new capacitors component parts with the same Micro ferit and the voltages of those new components capacitors parts in a higher voltages like 5 or 10 voltages higher than the old components capacitors parts u are replacing for a better heat resistance for the tv operation of the tv power supply board for later on tv use.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
the problem is in the pcb ner the crt socket.there are three tda6111 ic one for each color(red green blue)try to change the red ic and some resistances there!if you dont have experiance try alocl samsung authorized center!is a routine repair!
Right next to the convergence IC's you'll see the resisters. Get a meter and do an Ohm check. You can find out what the resisters are rated at by the colored bands on it.
ok cowsad! you have defective tact switch relace all tact switches! the tact switch is have only resistance if you press it, but now ithink your switches is now have smal resistance thats why your tv is on and off automatically.
×