Question about Vizio P42HD Television
Hi, Your tv has problem with its back light inverter stage. All LCD TV have back light to illuminate the pixels. There are two types of back lighting CCFL(Cold Cathode Fluorescent Lamp) and LED. In your tv its ccfl. As it is ccfl it need a high voltage above 1000v. To provide such a high voltage there will be an inverter stage in all lcd tv with ccfl back lighting. Normally in LCD tvs there will be three boards such as Mother board , Back light inverter board, and power supply. In your tv the ccfl back light inverter stage is faulty. There will in inverter transformers in the inverter board. As it is high voltage transformer there is possibility of its winding get shorted. If so it will drain a high current from the power supply and the protection circuit will shut down the voltage to the inverter board. check the inverter board first. Also there is possibility of bad electrolytic capacitors in the inverter board will lead to this type of problem. First of all check the supply voltage from the power supply to the inverter board. Change the electrolytic capacitors in the inverter board and in the power supply stage. If the problem is not rectified then you have to replace the inverter board. ok
Posted on Jun 10, 2011
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Posted on Jan 02, 2017
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Nov 19, 2013 | Televison & Video
Mar 05, 2008 | Philips 42PF9630A 42 in. Plasma Television
The Picture in Picture
(PIP) on VIZIO televisions works on multiple input sources. This means
you have to have signal or a device connected to more than one input on
the television and have both inputs selected to display the information
going to them. Here is an example. Let's say you have an HD cable box
connected to your television and you would like to have more than one
channel displayed on the screen in order to keep an eye on both football
games at the same time. With one device connected that's not going to
work out the way our TV functions. What you want to do is get
a coaxial splitter and two extra coaxial cables; these can be found
anywhere home theater equipment is sold. Then follow these steps.
1. Turn off both your cable box and television.
2. Take the coaxial cable that comes OUT from the wall and connects to the IN of your cable box and disconnect it.
3. Connect that cable to the IN on your coaxial splitter.
Connect your two extra coaxial cables to the OUTs on your coaxial
splitter. We will call them cable 1 and Cable 2, just because.
5. Connect cable 1 directly to the DTV/TV input on your television.
Connect Cable 2 directly to the IN on your cable box, this will be the
same connection you removed it from in step #2. Your HD cable box should
still be connected to your television with either an HDMI cable or
Component cables (Identified by their Green, Red, Blue colors for video
and Red and White cables for audio.)
Power on both the cable box and your television. Using the INPUT button
on your VIZIO remote select the input connection where your cable box is
located your cable box picture should come up on the Main screen.
Press the PIP button on your VIZIO remote to bring up the small box in
the corner. Press the PIP input button until you select the TV input and
you should be ready to go. You may need to perform a channel scan with
your TV tuner to locate all available channels before you do this step.
In order to understand better how to perform a channel scan please check
under the F.A.Q.s in the discussion area of your particular model
In order to change channels in the small screen use the PIP CH - and + buttons located near the bottom of the remote. You can swap picture in the Main and Sub screens using the swap button and swap which screen will sound off its audio by using the AUDIO button. You might notice an X next to some of the selections in the INPUT and PIP INPUT screens when you have PIP activated. That means that input selection is unavailable and cannot be used. For example, if you have the input TV selected on your main screen then if you press the PIP INPUT button and bring up that input menu you will see X's next to the TV and AV selections. The X's mean that when you have TV on the main screen you won't be able to use TV or AV on the small screen. Instead you would need to use any of the input selections that do not have an X attached to them.
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