I have a net tv pdp42v power turns on but no screen or sound

Sansui HDLCD3700 -- Turns On, No Picture/Sound - Badcaps Forums ...

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May 20, 2013 - 7 posts - ‎3 authors
Sansui HDLCD3700 -- Turns On, No Picture/Sound ... My Country: USA ... not been able to get any sound or video at all (no backlight either).

Sansui hdlcd185w repair - YouTube

? 2:25
https://www.youtube.com/watch?v=qMpiC8YL3SE
May 31, 2013 - Uploaded by After Hours Tv & Pc repair
Thanks so much for posting, saved my kitchen tv from the landfill!... Also the buttons on the side of the tv do not work correctly. ...Any suggestions? .... LG LCD TV REPAIR - NO PICTURESCREEN FIX REVIEW - Duration: 5:29 ...

LG LED TV has no picture (black screen) but still sound ...

www.tomsguide.com/answers/.../led-picture-black-screen-sound-fixed.ht...

7 days ago - My 32' LG LED TV has suddenly lost picture! The sound is all right but theScreen is pitch black. After switching it on the picture flashes for a second and thenthe ... LG LED TV has no picture (black screen) but still sound - can it be fixed? Tags: ... a touch on the screen reveals nothing so it's not the back light.

Monitor going black after 2 seconds [Solved] - CCM.net

ccm.net > Forum > Hardware

Oct 9, 2012 - Brightness goes down, display draws less juice, and you can at least use .... it's the LCD's Inverter ... you have to replace it for it to go back to ... If the screen is turning off every two seconds or so and then it comes ... i turn my tv on it comes right on, but then after a few minutes turns off, .... Digital Trends for LG. No display in monitor
Jan 11, 2013
Ps3 and hdmi cable
Oct 8, 2012
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TV with Black Blank Screen Repair How to Troubleshoot ...

? 3:16
https://www.youtube.com/watch?v=kFdVi2ejfzA

There is a large sand filled resistor on the main board close to where the power cord attaches that cracks. This will stop power until it cools enough to make the connection then heats up rapidly to open it again. It may be worth the trouble if you're handy with a soldering gun and can get the back off the TV. If not then I'd consider getting a flat screen.

Download the repair book to this TV by net. It will have all details.

is it a tv or rear-projector? does it brings out the sound?

on a tv it could be the chromatisation IC that is defectiven when it goes blank. why? because of a power surge in the electrical net the tv got too much voltage to take.

try to desoldeer the EPROM IC and power on the set. does this make the set goes normal blue screen? if YES,you can order a new EPROM IC.

succes and enjoy

there are 2 voltages that nned to be correct
if not they could be causing you problem ,and i hope that is the case. otherwise you willl need an epnsive panel replaced i would suggest you have a tech take a look

You have lost the input signal...you will have to go to Setup/Net Command and set your input to the one with signal (either a TV input or a Component input). If it is reset...the input likely switched to a non-usable input

You have sound but no picture. Green power light is on and NOT flashing. You get a screen flash or flicker on power-up or even a minute of screen before going all black. It is your inverter board. Common problem on LCDs (maybe more so on Phillips?). They are easy to replace (unplug-plug) and are available on the net.

Veritas

Here's what you need:
1) General guide - very similar TV, same main issues and troubleshooting process:
http://blog.coppelltvrepair.com/2011/02/hp-pl4260n-suddenly-lost-picture-how-to.html

2) Most common repair for the pdp42V5 chassis:
http://www.coppelltvrepair.com/p/227/viore-pdp42v18ha-ysus-6871qyh053b-repair-service

Hope this helps!

sounds like something is over heating.
i would check convergence ic
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html