Question about Proscan 47LB45H 47 in. LCD TV
The tv turns on and i can control things such as switching inputs but there is nothing displayed on the screen and no picture comes through. It does come on and go to the lighted black screen (as if it were in sleep mode) but I can't get any picture to display or menus to show up. i have the same problem on my Proscan 47LB45H made in Nov 1 2007 , i get sound, can change channels but no video is displayed on screen , just light on the side of the screen.
Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
Posted on Jun 19, 2017
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Posted on Jan 02, 2017
This depends on whether you have digital cable box or not. If you have a Digi Cable Box look for the red/white RCA output and connect this via RCA cable to the Red/White Audio input on your surround.
If just Basic Cable look for a red/white audio output on the back of your televison. connect this to the Red/white in on your surround. Could be called tv in or auxillary.
Posted on Jan 28, 2009
I think you have to change the settings in your HD box. Look on the diplay window of your HD box, if it says 480 there, thats where you need to change it so it will change then on your TV.
Posted on Apr 14, 2009
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