Question about Sylvania 6620LG 20 in. EDTV-Ready LCD Television

Open Question

Shut down while watching (no sound or picture)

TV shut down while watching, first heard faint "click" (ie: relay probably dropping out) and set went out completely. Manual on-off does nothing. Later when plugged unit in again heard "click" then 2-3 seconds later it clicked again. Concluded that a relay activated on power-up then dropped out.
Am a EE so took back off set: fuse OK along with all diodes and power resistor. suspect problem is in one of the low voltage power supplies as there is only 3 vdc at (12vdc) relay coil. I could order repair manual but may not be worth effort as most surface mount devices are not "home replaceable".
TV cost just under $300 and cost to have repaired may not be worth it.
Your advice requested.
Regards, Steve

Posted by on

6 Suggested Answers

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

  • 2315 Answers

SOURCE: flat panel tv blows fuses

If the same fuse blows again as soon as you plug it the LCD to the AC outlet, It means that a transistor(s), capacitor(s) or diode(s) are shorted.
I can repair the power supply for you. Let me know if you need further assistance.

Posted on Nov 10, 2008

ginko
  • 19396 Answers

SOURCE: No power up

You need a reay, RJP3053


Buy from RELAY STD DPDT for $ 2.79


Posted on Dec 23, 2008

dsacco86
  • 1077 Answers

SOURCE: New TV 9 mos old, Won't stay on after power up? Remote or manual turn on, set keeps turning off after 1-2 second green on and brief screen flash.

I would try leaving the TV unplugged for 30mins so the TV can reset itself.
If that doesn't work, your TV should still be under warranty. I know 95% of come with a 1 year warranty.
The most common problem with Sylvania TVs made by FUNAI, the Backlight Inverter board fails to early in life. ( That's the part that powers the screen)
The Tv can't power up the screen and it turns off automatically. Basically called "Protection Mode" so it protects the other parts inside the TV.

Posted on Jun 01, 2009

dsacco86
  • 1077 Answers

SOURCE: SYLVANIA 42 INCH 6842PEM DOES NOT TURN ON

The most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

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

Posted on Jun 28, 2009

  • 8457 Answers

SOURCE: this tv shuts down and goes into protect when

power board ic converter it dead.
Need new power board can get in the web.and replace it or hire tv. repair man part labor $575

Posted on Aug 12, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

While I was watching my Emerson TV I heard a loud click and the screen went black and audio went off. When I press tv button on cable remote the tv button glows red, and nothing happens on the tv.


Hi the power supply might have shut down through overheating turn the power of at the wall socket & wait for a short time before trying again the TV might reset itself if this doesn't work its probably shut down from a faulty component. good luck

Oct 23, 2016 | Emerson Televison & Video

1 Answer

I have the Toshiba Theaterview. Was watching it when I heard a sound and the screen went black. The Red Light will come on and glow steady and you hear it click when you try to turn it on or off but...


Something is causing the TV shut down or go in to 'protect' mode.
It is unusual to actually hear a component inside the TV go bad, but you obviously did. Probably in the main power supply or something that normally uses a higher voltage in the TV since you heard it..

Jan 25, 2015 | Toshiba Televison & Video

1 Answer

RCA HD52 W59 Picture dropped then TV went dead. Turned on heard a crackle sound then TV imediatly shut off. Not going to try again as it has a faint electrical burnt smell now. Unplugged and trying to


fix it yourself with that symptom the deflection board will require replacement which can easially be done at home no special tools or skills reguired. You can get the replacement deflection board from www.tvrepairworld.com which has a warranty and the CD with installation instructions.

Nov 19, 2011 | RCA Televison & Video

1 Answer

Pop sound then no picture, just sound


I assume this is a plasma TV? You will have a fuse blown on either the Y or Z sutain board, there is also a possibility one of the driver IC's has blown on the buffer board, this will shut down the screen & leave the audio working normally. You can check these boards which sit on the left & right hand sides of the screen.

Sep 23, 2009 | Televison & Video

1 Answer

HL-R4266W shuts down and a faint clicking sound can be heard


I believe I read somewhere that when you open the back cover over the lamp, there is a special little black switch that needs to be in the up position when you put the cover back on, or the TV can shut itself off randomly.

Aug 16, 2009 | Samsung HL-R4266W 42" HDTV-Ready...

1 Answer

Picture started getting fuzzy then it went out


yes,remove the back of the tv,on the power board you will see the problem.replace those capacitors on the power board.this will allow the set to work.the black bars may still be there.this is an indication of a bad panel.

Aug 08, 2009 | Televison & Video

1 Answer

Pop no picture


i think the power supply went out .not cheap, parts and labor about 450

Jul 10, 2009 | LG 42LC2D 42 in. LCD HDTV

3 Answers

No sound or picture


Try 2 things:
1. If you have a cable box with the yellow/white/red outputs, use a compatible cord to run the 3 to another input on your TV (ie input 1 vs cable). and/or
2. Do a Factory reset. Hold the "menu" button on your TV then on your remote hit "menu" then "8" then "select" and go to "factory reset". You may have to unplug the TV as it may freeze on "factory reset". Replug it then try it out.

Hope it works.

Apr 03, 2008 | Hitachi 51F510 51" Rear Projection...

1 Answer

No Picture No Sound


were the colors looking 3D before the set shut down? If so chances are its the convergence amp ICs and thats what has shut your set down. Let me know if you need anymore info.

Mar 28, 2008 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

TV went out


it shut down when was viewing ah..ok there is a short and could be in the horizontal circuit or in the power supply regulator any way thats a job for a tech...good luck

Aug 10, 2006 | RCA P46922 TV

Not finding what you are looking for?
Sylvania 6620LG 20 in. EDTV-Ready LCD Television Logo

Related Topics:

36 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sylvania Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73591 Answers

matt martin
matt martin

Level 3 Expert

1208 Answers

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

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

Answer questions

Manuals & User Guides

Loading...