I will give you some information to read, decide from it what to try and if Any questions please ask first.
ISSUES:
1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.
Answers to issues:
1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.
2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.
Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.
What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.
3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.
4. Safety first--no TV set is worth getting injured or even killed over.
First thing to look for if set opened is the power supply board--any caps puffed up like these are bad and will stop set from coming on--other things can do this--this is a clear place to look first.
SOURCE: Westinghouse lcd tv ltv-27w2 no picture or sound
power supply first one...second one input hdmi pcb defective..
SOURCE: westinghouse LCD power light but wont turn on
G'Day!
Unfortunately, what you're describing is a repair
issue. You won't be able to address the problem with troubleshooting.
There is a part inside the TV that needs to be replaced. Since you're not under
warranty the cost will likely be a minimum of $200 parts and labor.
However, be warned that the cost could be considerably higher.
I hope I've provided you useful assistance and that this information
allows you to make an informed decision as to how to proceed from
here. Please be sure to vote on my response. I hope I've earned a
good rating from you today.
Please post a comment if you need
additional assistance so that I can help you further.
SOURCE: Westinghouse LTV-19w3: Blue power light is on in
My TV is doing the exact same thing... were you able to find a solution? If so could you let me know?
Thanks
Mark
SOURCE: Westinghouse HDTV TX42F430S, No picture or sound.
Tries websites Shopjimmy.com,Ebay.com to buy a refurbish Main Tuner signal board for the replacement.
Testimonial: "Thanks for the lead on the parts."
SOURCE: I have a viewsonic LCD TV, N3260w. One day it
More likely to have failed power supply module.
http://www.shopjimmy.com/catalogsearch/result/?q=N3260W
You can download the spec of the power supply to get the pinout for voltages checking.
http://www.fspgroupusa.com/fsp2283f01/p/641.html
If you are going to DIY and have proper tools 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
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
409 views
Usually answered in minutes!
×