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Viewsonic VPW 450HD

Hello from Germany,

can you tell me where I find the Logic Board Assembly Part#:NA18106-5006
in this TV? Do you have a picture from the technical manual concerning this part. I bought this part in the US, opened the TV, but I cannot find ths part.

Thank you!

Dieter

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  • patriotbier Jan 18, 2008

    this address ( I tried ntid, too ) does not work.

    Dieter

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Hi you could try looking here as this is the site i use you might need to register with them to get the info
http://www.download.ntld.co.uk
this should help you
if its not ntld try ntid

Posted on Jan 18, 2008

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  • nick helpap
    nick helpap Jan 18, 2008

    proably buy the sound controllers in behind that area snaped up in by speakers

  • nick helpap
    nick helpap Jan 18, 2008

    chip creep" caused by thermal expansion/contraction. I took my unit apart and reseated all connectors and ICs that weren't soldered in and put the unit back together and now my unit is working again!

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1 Answer

My Viewsonic VX2255WMB mod.# VS11659, when I start my computer and turn the monitor on all I get is a white screen, no text, nothing I do will display anything, is the monitor worth fixing??


The cable between the logic board and the LCD panel may have come off, or the board (T-CON) on the LCD panel failed, or the LOGIC board is not sending 5vdc to the T-CON board.
Repair shop will charge you around $100 plus parts.
Example of failed LCD panel assemblies: http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

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Viewsonic VPW450HD Plasma


Hi,

Did you try unplugging the TV from the power for a few hours?

Dec 25, 2007 | ViewSonic VPW450HD 42 in. HD-Ready Plasma...

1 Answer

White screen only


Check the ribbon cable between the logic board and the T-CON board, or the T-CON board is bad which means you will need new LCD panel, or the logic baord is not feeding the 12vdc to the T-CON board.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

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1 Answer

VIEWSONIC PJD5111 SHOWS VERTICAL LINES


Hi... Projector show vertical lines... Issue in your logic board filter's missing on logic input board check for fail signal on video input logic board,,, check input connector for broken pin inside connector... also check capacitor & resistance arround video logic processor, possibility of over heat conponent

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1 Answer

I have vertical bars on screen


Hello,

The T CON board of the television is bad, you need to replace this
The T-CON (Timing Control or LCD controller) board (on the LCD panel assembly). It transfer the universal image signal of TTL and LVDS signal to specific TFT (Thin Film Transistor) LCD.
This is the interface board that talks to the Logic board and the LCD panel to produce pictures on the screen. White/gray glowing screen when it fails or not getting the voltage from the logic board (the 5 or 12vdc is supplied by switched transistor on the logic board). Notes: T-CON board is mounted under the metal cover shield.
Common failures:
Scrambled pictures, Lines, multiple pictures, color smears/blotches, rolling pictures after warm up.
Blown surface mounted fuse.
No pictures, very dark screen almost like there is no backlights.

Hope this helps........

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1 Answer

We are having SAMSUNG LA37R81B tv at home its showin blurred picture we asked repair man he said we need the tcon board number so that we can buy we now need your help


Hello,
it possible that the problem is the the TCON board, you can try websites Shopjimmy.com,Ebay.com to buy a refurbish board for the replacement.

Also note that
The T-CON (Timing Control or LCD controller) board (on the LCD panel assembly). It transfer the universal image signal of TTL and LVDS signal to specific TFT (Thin Film Transistor) LCD.
This is the interface board that talks to the Logic board and the LCD panel to produce pictures on the screen. White/gray glowing screen when it fails or not getting the voltage from the logic board (the 5 or 12vdc is supplied by switched transistor on the logic board). Notes: T-CON board is mounted under the metal cover shield.
Common failures:
Scrambled pictures, Lines, multiple pictures, color smears/blotches, rolling pictures after warm up.
Blown surface mounted fuse.
No pictures, very dark screen almost like there is no backlights.
Hope this helpout..

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1 Answer

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When you have white glow and no pictures, then more likely the the LCD T-CON board (part of LCD panel assembly) is not getting 5vdc feeding it, it can be blown fuse on the T-CON board or the logic board is not feeding the 5vdc to the T-CON board.
You need to check the power supply and the logic board first for bad caps (leaking/bulging top).
Please see my pictures here:
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

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1 Answer

Viewsonic vx2235wm has a white screen. What is the problem?


If you have white glow on thescreen with no pictures, the problem can be the LCD panel controller board (part of the LCD screen) is not getting the 5v from the logic board. See pictures of failed VX2235W for guide as to what to look for first, otherwise you will need new LCD panel.
http://s807.photobucket.com/albums/yy352/budm/Viewsonic%20VX2235W/

http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/

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1 Answer

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Hello:

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Jerry G.

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