View previous topic :: View next topic |
Author |
Message |
joby201
Joined: 21 Sep 2009 Posts: 5
|
Posted: Thu Oct 22, 2009 8:21 pm Post subject: viewsonic n4060w lcd |
|
|
i have a viewsonic lcd tv that will not display a picture. the set turns on and the screen comes on and looks bright from an angle, but dark from straight on. from the back of the set, white light can be seen from holes in the frame. i cant get sound from the set either. i have already replaced the inverters and got the same result. could this be the input/main board?any ideas? thanks |
|
Back to top |
|
 |
minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
|
Posted: Thu Oct 22, 2009 9:22 pm Post subject: |
|
|
Have you opened the back and looked for bulged caps on the power supply or inverters? |
|
Back to top |
|
 |
joby201
Joined: 21 Sep 2009 Posts: 5
|
Posted: Thu Oct 22, 2009 9:35 pm Post subject: |
|
|
caps look good on both power supply and inverters... |
|
Back to top |
|
 |
minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
|
Posted: Thu Oct 22, 2009 10:34 pm Post subject: |
|
|
12/24 volts going to the inverters? |
|
Back to top |
|
 |
joby201
Joined: 21 Sep 2009 Posts: 5
|
Posted: Thu Oct 22, 2009 11:11 pm Post subject: |
|
|
5 leads on each side read 24v. 5 leads on each side dont register any voltage. 1 lead on each side reads ~2v. 1 lead on each side reads 5v. im guessing those 0v reads are wrong? i dont have a schematic |
|
Back to top |
|
 |
Guest
|
Posted: Fri Oct 23, 2009 2:10 am Post subject: |
|
|
ok the other 5 leads x2 are ground |
|
Back to top |
|
 |
minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
|
Posted: Fri Oct 23, 2009 11:14 pm Post subject: |
|
|
Bad digital main board. |
|
Back to top |
|
 |
|
|
|
You can post new topics in this forum You can reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
eServiceInfo on FB -
Service Manuals Free Download -
Service Diagrams
Free TV Schematics Download -
HARDW.net -
Pinout Master -
Jabse Service Manual Search -
Jabse.InK -
onTap.bg
SnimkiOt.com -
Poblizo.com : пътешествия
Latest Service Manuals :
DSD0303706P1 panasonic • B1D43A Philips • RRCD-3700MP3 Grundig • Pass4.mesa Sep78 xerox • Output.mesa Oct77 xerox • Thermal, Mechanical, and Chassis Cooling • panasonic th-l42e3d chassis km11 panason • olympusOM-4 OLYMPUS • 195A RevA DocSpec Keithley • pmbf5484 pmbf5485 pmbf5486 cnv 2 Philips •
|