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The main digital board should be troubleshooted. If you wish to get more details, surf the
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What is the TV source? For some sources (set top box), you may need to turn on the captions using the menus of the box.
Assuming you are using a source that gives captions that the TV can interpret, if you have the Proscan 26LA30Q remote, press the CC button to toggle through the caption options. Another route is to press Menu (either on the remote or the buttons on the side of the TV) then select the Feature submenu with the left/right arrows. Press Enter (menu when you use the buttons on the TV) then navigate to the Digital Closed Captions option. Here you can set the captions to on and adjust the size, style and color of the captions when they appear on-screen.
If you are using a universal remote, try the CC button. If it doesn't work, try another code for the Proscan TV on the remote. There are some codes that may not control all of the functions of the TV with the remote.
You have to start checkin from its main ON/OFF switch itself. If the switch have any contact contact trouble, the set will not turn On, even though you hear the click sound from the switch. If switch is Ok, then you have to come to the power supply regulator board. It can be easly recogonized the powe supply regulator boad. The main supply line will go straight to it. There will be more that 5 or mor secondary voltages from it, according to Tv model. These secondary wupplies will energzed only after the power supply switching circuit work properly.
Ther is a fuse [ a cartridge type; replaceable]. Check the fuse first. If it has blown; be carefull when you replace it; because there must be some reason for the blowing of that fuse. It is really a protection device. Before replacing it, you have to check the entire power supply board for some short circuit. If you have sound knoledge in repairing Switched Mode Power Supply [SMPS]; just proceed. Otherwise get it repaired by any experienced service technican or by authorised service center for Proscan. OK.
Watching a movie tonight...and slowly there was odd behavior from the screen. No volume at first, then flickering, fragmenting and now, as the others only shows the red power. I have noticed some strange flickering the past 2 weeks or so. I thought it may be the cable, so did not concern myself too much. I believed that was the problem tonight as well. But the screen is definately not responding to the remote or manual button.