Why my Pro Scan TV has sound no picture - Proscan 42LA45H 42 in. LCD TV

The unit is too old now. You wasted money for noting. Trash the TV and go for a new system.

disconect video cable from the box and if you see color video bars on the screen the problems is the box.if you dont see anything you problem is in the display

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

sigmatel mobile s9 is not charging

If you can open than open your LCD tv & checked Inverter Borad it have White & red color connector may be this board is defective.

Sounds like convergence is off. Need new Convergence amps. Could cost a couple hundred. Check around. If it has an auto converge or manual converge try that first. Check menu

High voltage Trippler is bad or shorted tube or need to replace FET ,startup Kit it has 16pin ic/ 4capacitors /resistors /everything you need to repair that circuit.So your tv is 15yrs old cost of replacing tubes 300.00 per tube.plus labor 190.00 and up ?

Good Morning,

Your connection is very easy so we should not have a problem isolating the problem.
We just have to go slow step by step.

First lets just check the Yellow cable just to be on the safe to side sure it is connected properly on the back of the DVD player and on the Televison.

Second, If the connectionn is secured. Turn the DVD player on, make sure you do not have a disc in the tray then turn the DVD player off.

Make sure the battery on the remote control is a fresh new battery (process of eliminattion).
Hold the remote control in front of the DVD front panel.
Turn the DVD player on with the remote control. Look on the front panel of the DVD player, it should read no disc. Press the Pro.Scan button "once". (Have you notice a flickering on the Television Screen).

If no flickering on the TV screen, press the Pro.Scan button again, ( this will be the second time). Have you notice the flickering?

If not, press the Pro.Scan button again ( third time). Have you notice a flickering on the TV screen?

Did you not notice on the LED of the DVD player if it read anything when you pressed the Pro.Scan button?
Try the above procedure again if your picture did not resume. If the picture resume in black and white, do not press the Pro.Scan button anymore.

Let me know the outcome up to this point.

Thanks,
Mike H.

Some LCD TV's have their own filter to improve image quality, this may be what you are seeing.
see if you can look in the TV's menu for something like that and turn it off.

Hope this helps
thanks for your rating

Requires chassis pull by a technician and then solder any/all
bad connects, esp. horizontal circuitry......................T.