20 Most Recent Westinghouse SK-32H540S 32 in. LCD TV - Page 3 Questions & Answers


If you have basic knowledge of electronics and have proper tools and safety equipment, the please read below since you need to do in-depth troubleshooting since putting in new boards until the problem is fixed can be real expensive.:
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find

Westinghouse... | Answered on Mar 09, 2011


Your backlight inverter board has failed. This may be due to a bad capacitor which is easy to repair, or the inverter transformer may have burned out, in which case it may be replaceable or the complete inverter board will need to be replaced.

Westinghouse... | Answered on Feb 14, 2011


hi, it sieams like, the power suplly is the cause.
for the fail of the voltag.

Westinghouse... | Answered on Feb 07, 2011


It may have cold solder joints in the power supply, backlights inverter board, etc.
You need to do some troubleshooting first since dark screen can be caused by more than one board.
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.

Westinghouse... | Answered on Jan 08, 2011


YOUR BACKLIGHT INVERTER IS FAILING.. YOU NEED TO REPLACE... YOU CAN GET ONE AT A LOW PRIZE AT TVPARTSANDMANUALS. COM

Westinghouse... | Answered on Jan 08, 2011


i have been a tech for 26 yrs now i have seen so many postings on here about bulging caps and so on but there is only 1 thing to do our workshop has 18000 dollars in test equipment alone there is a great reason for this the amount of vereables that can go wrong with nano electronics there is no easy fix to this problem it needs to be seen by a certified electronics tech this is your best chance of having this tv fixed correctly im not putting down other techs on this site but some things we can fix by computer network some we cant imagine even if this tv was in my workshop right now it would take us over an hour just to find and fix the cause

i hope this helps you sir/mam

sonic boom electronics australia pty ltd.

managing director

Westinghouse... | Answered on Jan 02, 2011


I had a similar problem with my 42 in Philips LCD HDTV. I may have the solution to your problem.


Here was MY problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you to consider.


1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. They can be found online. I would definitely shop around though.


3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.


This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It will, at the very least, give you a general idea of the process. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem.


Hope this helps.

If you have any questions for me, please comment on this page. I will be happy to assist you to the best of my ability. Thanks for using Fixya.


Kaufman605

Westinghouse... | Answered on Dec 22, 2010


I had a similar problem with my 42 in Philips LCD HDTV.



Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors. Many electronics companies were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you.

1. Have it fixed by a professional

2. Open your TV and find PSB. Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board.

3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.


I have a tip/tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. It's called: Fixing the Philips Turns/shuts off on its own problem.


Hope this helps and Good luck.


Kaufman605

Westinghouse... | Answered on Dec 12, 2010


First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Please post back what you find.

Westinghouse... | Answered on Oct 25, 2010


It can be the 24vdc power supply problem or backlight inverter problem, those are the palces to look.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Please post back what you find.

Westinghouse... | Answered on Oct 12, 2010


Hi,

As you mentioned there was a ' smell ' and ' pop ' noise which confirms that there is a short circuit that have happened. Even though you had surge protector, these problems could be there ( though rare ).It seems more likely a problem with power supply board. It seems as if certain IC's were blown out.As it is only over a year old, i would advise you to ring manufacturer so that they could take care of it. You never mention as it is few days or months. Most manufacturers would repair the TV even if it's within 1 month after expiration of warranty or they would only charge for parts, if required. Again, this is completely on manufacturer. There is no hard and fast rule.

If you have experience in repairing electronics and could repair TV's, could read schematics and would be able to keep precautions, you need to open the TV and look at the power supply board. Make sure not to damage anything. More often, you would find swelled / bulged / fused / leaked capacitor. Des solder that and take it to radioshack or fry's and buy the new one. Solder the new one and it would fix the problem.

If you do not see any blown IC, revert and we could further troubleshoot that would need you to have a look at service manual as well.

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Westinghouse... | Answered on Sep 12, 2010


I found a place where they seem to have it,< shopjimmy.com> some of the items they have for sale come out of new broken or damaged TVs so be carefull to ask about this before you order.

Westinghouse... | Answered on Jun 02, 2010


Ur LCD inverter board is dead.Replaced LCD inverter board will get ur picture back.This board shape is a long board.Tries Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replacement.

Westinghouse... | Answered on Apr 25, 2010


Hello. this is a serious problem that even Westinghouse does not want to admit. here is a link of interest to you http://www.complaintsboard.com/complaints/westinghouse-lcd-tv-c63362.html

Back to your tv, if it is over 3 years old just replace it. The cost of a repair is not worth the effort. New 32 inch LCD tv's are better and cheaper than before.

Westinghouse... | Answered on Apr 25, 2010


Hello, two things, one try using the TV with the native resolution of 1366 X 768, and secondly try updating your video card. If you are not having this issue with the TV on the other inputs than most likely it is a settings issue with the laptop. Please rate this comment if it was helpful.

Westinghouse... | Answered on Apr 07, 2010


One of the transformers on the inverter section of the power supply board has failed. Part can be found on line ($29.99). Also check for faulty and poor solder connections.

Westinghouse... | Answered on Mar 23, 2010


I had the Same issue. on a 50PF9431D/37 set. Many Plasma Set's use a LJ44-00118A PS-505-PH Power supply from Samsung. Known to have this common problem. If you can, or have a friend that can Solder components?. Unplug your set remove the back panel & locate your power supply. It will be the PCB in the center of the set just above the Video/Audio connections. http://www.shopjimmy.com/power-supply-unit-lj44-00118a-from-philips-50mf231d-40.htm. Is a Link to a photo of the PCB. Make a note of the locations of all cable connections then unplug them all. Un-install PCB, Check all Fuse first. I believe their is 5 or 6 of them on the PCB. Then replace the two 3300uf 10v 105C Radial capacitors at C8060 & C8059. Look to see if the Caps are deformed and or split at the top. The location of the caps are in the Lower bottom edge of the PCB. A local shop may Carrie them if not, digi-key has them. Part # http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=493-1754-ND. Total cost was $7 with S/H.

Westinghouse... | Answered on Mar 23, 2010


the connector on the board from the speakers comes loose, this happened to me, easy fix, need a phillips screwdriver to take back off, and metal cage on back inside, then try replacing the 4 pin plug. You might have to bend it back a bit so it goes on more firmly then they originally put it on. let me know if ya need more help.

Westinghouse... | Answered on Feb 03, 2010


press a channel and power off WII.

Westinghouse... | Answered on Jan 03, 2010

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