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Sylvania TV will not stay "on"--keeps switching to "standby"

No picture/sound, can't turn on as it switches from on to stabdby by itself.

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

SOURCE: TV cut out and stay on standby

hold the power switch in from off for 10 seconds, worked for me.

Posted on Sep 03, 2007

SOURCE: bush lcd 27006 standby flashing

Yeah your psu needs new capacitors.

Posted on Sep 21, 2008

  • 1 Answer

SOURCE: SONY KV32F-Q86U BLINKING 16 TIMES

The problem, on the AE6B chassis at least, is usually an MCZ3001DB chip. There are three in the average Sony TV, one on the so-called A-Board and 2 on the D-Board. Usually the problem is caused by a faulty one on the D-Board near the two large switching FET's. In this case, replacing this will fix the problem.

Brian.

Posted on Nov 19, 2008

  • 1 Answer

SOURCE: TV keeps turning itself on and off, onto standby

I managed to find a local repair man who fixed the problem. He put in a new transformer.

Posted on Dec 05, 2008

  • 1456 Answers

SOURCE: Loewe TV bought in 2002 ... switching itself off,

Hello

The problem either the on/off button is faulty or a heat sink not doing it's job.

The on/off button simply toggles a low voltage circuit that powers your tv. If it is dusty, it may complete the electrical circuit and send a false signal.

A heat sink may be dusty and unable to dissipate heat. Overtemp protection may be switching the TV off.

what you should do is to get a can of compressed air, open the back of your tv and clean the dust off the circuit boards.

Posted on Dec 13, 2010

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1 Answer

When i switch my tv on it turn's itself to standby, i can switch it back on again but it just keep's switching itself to stanby after a couple of minutes.


You need a live input source to the port that the TV is set to, or turn on the tv and switch input to a live input source, anything else and the tv shifts to standby.

Oct 13, 2010 | Televison & Video

2 Answers

Tv keeps turning itself off and the white in the picture looks alittle off.


To get the right colors, especially a plain white, requires the right mix of red, green and blue from the picture tube. Sony TV sets have a circuit called AKB that automatically keeps the picture tube balanced by adjusting the signals to it. If that balance can't be achieved it shuts off the picture. This may due to tube aging so one of the color guns is too weak to adjust, or failure of parts in the AKB circuit itself. If the sound stays on and the power light starts blinking when the picture goes off, this is likely why.

On the other hand, if the set is turning off completely with no picture, sound or power light, the set may have power supply problems or defective parts in the picture tube high voltage circuits.

Since there are several possible causes, this set needs to be checked by a technician who can diagnose the problem and decide what needs to be done. It's not a simple thing I can point to and say "change this part". If the picture tube is the cause, it's better to replace the set. Otherwise get an estimate, then decide whether to fix or replace.

Apr 04, 2010 | Sony FD Trinitron WEGA KV-36HS20 36" TV

1 Answer

My Sharpe Aquos TV screen stays black even when switched on!


Call up Sharp, if you are part of the AQUOS Advantage Program, you get FREE in home service along with the repairs for it.

They'll give you a case number, set you up with a technician and BAM!
I called on a Wednesday and got an appt for that Saturday for the technician to come to my house.

I doubted Sharp alot less after that.

Aug 28, 2009 | Sharp AQUOS LC-32D44U 32 in. LCD TV

1 Answer

Beovision 3 (8803) standby ok - no picture - no sound


if you know how to use soldering iron,try to resolder your tv,especially the jungle,regulator and the horizontal section.if not working, check the output transistor a square black plastic w/ 3 legs at the back of the plyback.

Jul 29, 2009 | Televison & Video

1 Answer

42 LG plasma no picture but sound. found internal fuse had gone so replaced. Then when switched on it stays on for about 5 seconds and switches itself off again. Replaced power supply and now when switched...


Sounds like it started "Protection Mode" because of a failed electronic part inside the TV. When this happens, the TV will keep turning itself OFF or will not turn ON at all. This keeps the other parts inside from being damaged. Most likely the TV has a power supply related problem. The common part to go bad for flat panel screens circuit board that powers the screen itself. Most manufactures call it a Backlight Inverter Board.
But, I can't say what is 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptom.

You have a few choices:

1. Best thing to do, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, schematics, test points, and part# lists.Usually, cost under $20. Its the best repair guide material for fixing TVs. And most cases the new part cost less than $15 by searching on the internet with the part number.

2. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.


I hope I shed some light on the subject for you.

Jul 20, 2009 | LG 42PG20 42 in. Plasma HDTV

1 Answer

WONT TURN ON


Most likely, the problem is a defective Main Processor Board. This is the board with the antenna, RCA and HDMI plugs. You cant repair or replace component parts on this board, so dont even try. You must replace the complete board. The TV says Sylvania, but it is a bloody Funia TV. Several years ago this foreign company bought out broke-azzz Sylvania . They are still carrying the Sylvania name since Sylvania was a popular TV name in the 70s. Every electronic company in the USA is now owned by the Chinese, so call Funai and order the part from them. Dont be surprise if they dont have a clue what the heck you asking for. America and all electronics have gone to the puddles. Do you know why? GREED.

May 07, 2009 | Sylvania LC320SS8 32 in. LCD Television

1 Answer

Sound but no picture - won't stay on


you may check your lamp first. other than that i would say a faulty mains board.

Apr 16, 2009 | Samsung DLP HL-P4663W 46" Rear Projection...

1 Answer

TV keeps turning itself on and off, onto standby


I managed to find a local repair man who fixed the problem. He put in a new transformer.

Dec 01, 2008 | JVC AV-32D305 32" TV

1 Answer

TV does not stay on, after its been switch on


I have the same problem, I sent it to Circuit City service and they said that they have to replace the power suplly assembly $500+ repair. I have tried to find the parts online, but no one sells it.

Nov 07, 2007 | Sylvania 6842PE TV

1 Answer

TV keeps turning itself on and off, onto standby


Right i had this same problem for ages! i cannot explain why but when i uplugged my DVD player (which was flashing its light at the same time as the tv for some reason) the TV has worked fine.

Aug 24, 2006 | Philips TV Tuner Video Capture PCI Card -...

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