Question about Sylvania LC370SL8 37 in. LCD Television

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Hi Guys, I had the Inverter Board Transformer issue. I replaced the open transformer and the set worked perfectly for 2 years. Recently, it wouldn't start every time and it took 1 or 2 tries to get it to turn on. It finally refused to turn on. The green LED blinks for a long time, then it blinks twice as fast then goes back to the red LED (The Backlight comes on and stays on while the green LED Blinks). I have checked every transformer on the inverter board, all of the capacitors and semiconductors. I have checked all of Caps and Semiconductors on the secondary power board. I have a Service Manual for this set, I have checked all of the voltages on the test points. Everything seems to be at the proper voltage. If anyone has had, and resolved, this problem please let me know. I need a DEFINITIVE answer and not a vague guess at what might be wrong. I'm a tech and I have repaired thousands of electronic devices, this one so far has me stumped.

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Have u check the s-tcon board , i had the same problem before and the s-tcon board was the problem , look for a fuse this fuse normally open thats way u have blank screen because there is no video info fron the s-tcon board

Posted on Dec 29, 2010

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Posted on Jan 02, 2017

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1 Answer

Tv shows the westinghouse emblem then goes black


If the westinghouse logo comes up on screen then instantly shuts done its caused by a failed transformer on the inverter. the Guys over at www.tvrepairworld.com can assist you with a replacement inverter or replacement transformer for westinghouse models.

Apr 02, 2012 | Televison & Video

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I have bought an ONKYO HTS-6300 from the USA (120V) and tried using it in India (220V) using a step down voltage converter. The receiver shows the red light but unit does not get on. It keeps on making a...


Hello
You have to use a step down transformer with this set and not a converter. The AC household voltage in Inda is 220VAC. Your set is designed to work on 120VAC. Therefore a 220VAC==>120VAC step-down transformer is needed to feed it. The onkyo has transformer inside, and it should get 120VAC; atleast 5AMPS current capacity. AN inverter cannot synchronised with this set. You can either buy it from Inidan electronics spare part market, of can be winded by expereiced transformer winders. Never give any inverter to this set, as some Onkyo models will have Torroid transformer inside, and it will take a tremendous amount of current at start-up, and make either your Onkyo of your converter to get damaged. OK.

Jun 13, 2011 | Onkyo HT-S6300 Theater System

1 Answer

Half of my screen in now grey. half works perfect, but I can barley read the bottom half.


replace the inverter lamp located at the bottom of your monitor, you should also check if the inverter board and transformer is not bad.

Feb 08, 2011 | LG 60LD550 60 in. High-definition LCD TV

1 Answer

The montier turns on then turns right off


Hi!
When a monitor display image for a second and then goes to black screen... there are possible reasons why this problem occur..

1. You need to check if the high voltage ballast transformer of your backlight inverter is about to be burned... the transformer is overheating..that's why you experience the monitor working for a couple of seconds and then it will shut off until the transformer cool down again and then it will be ready to work again...

2. Check also the backlight inverter if it is busted...the backlight inverter is the light source responsible for the image display you seen on your screen. If this are busted then all that you will be seeing is black screen

3. You need to check the power supply section for possible loose connections and possible blown and bad capacitors..

the ballast transformer has direct effect on power supply section.. when there is overheating transformer,,, the supply current from the power supply section becomes unstable.. and will not be able to supply the remaining good working ballast transformer.

In case you do not know, the ballast transformer generates high voltage for the backlight inverter to work....

Please be advise that if you don't have the knowledge, the proper skills and the right tools to open the back cover of your monitor and replace its part...don't risk it...

Otherwise, bring your unit to a credible technician and avail of warranty if there is any.....


Much appreciated if you rate this help...thanks...

May 25, 2010 | HP f2105 21" LCD Monitor

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I have 2 daytek f19ah monitors. Both fail the same way. the display comes on for 2 sec then goes off. the flashlight trick show a working display. what needs to be replaced on the power supply? thanx..


Try replacing the capacitors on the power board, and in the inverter circuit. Often this will get them to work. If not, you may find two surface-mount transistors on the board that drive the stepup transformers for the lights. These also go bad and may need to be replaced. Good luck.

May 02, 2009 | Computers & Internet

1 Answer

Bought Niko 32 LCD HDTV last year Sound is good No picture.


Changing the inverter board shouldn't be hard. It's just the matter of taking things apart and unplugging some wires to it.
There shouldn't be anything you would have to solder in.
I'm sure he gave you the price of the whole inverter board itself. Not the small transformer inverter on the board.

Feb 17, 2009 | Niko OTP-3211W 32 in. LCD Television

1 Answer

Lc320em82 emerson tv


I've had the same problem with mine. Only had it for 3 months and the warranty sucks. I found out that the inverter transformer goes bad on these LCD TVs. It takes 6 of those on my power inverter board to power my 32' screen. After replacing the one bad inverter transformer, it's working again. There should be a recall for this junk part.

Jan 01, 2009 | Emerson EWL3706 37 in. LCD Television

2 Answers

Ccfl inverter board


The most prevalent failure on these boards are the transformers and or the ic that controls the frequency of the lamp drive. More times than not you will find a bad transformer.
srich

May 19, 2008 | Gateway FPD2275W LCD Monitor

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Dell 1701FP monitor - power buttons blinking - no display - no white screen


hi my name is joel joely from etech vanuatu limited. my dell LCD monitor is just blinking power light on with orange light and also power switch not working if turn it on or off no display on screen.

my email address is joel@etech.com.vu

thanks

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Sep 06, 2007 | Dell UltraSharp 1701FP 17" LCD Monitor

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