How do i tune my SAMSUNG PS42S5H for high definition channels

Are you sure it's a HD TV? Channel 32 is now a high definition channel so if your TV's not HD you won't see anything. the sound should come through but it's lots quieter. Can you see channel 95? it's also a new HD channel. You should get 31 though,

Look on the power supply board for bad capacitors they will be swollen or vented on Top.
1000uf 16v 2200uf 10v 3300uf 10v 330uf 10v

To get an hd picture you have to use a digital input and this cannot be done by simply turning it to a channel. You need to hook up your HD receiver (box) to your tv using either an HDMI or a Component which will be a cable that looks similar to an rca but there are three of them and the colors are bed blue and green. If there is a red, blue and green on the back of the cable box and the tv hook them together with a component cable and then find the input on your tv that correlates to the compnent connections and then even after all of this you need to be tuned into a channel that is offered in high definition and if you have cable like I do the high definition channel will be a seperate channel from the regular one. Comcast in my area puts the HD's from channels 400-500. For example my espn HD is channel 403 but just regular espn non HD is on channel 27 in my area.

Your board numbers should start with LJ92. They will cross to both Samsung and LG. Oh, your model number goes nowhere, double check it.

sounds like the lower y-sus buffer! take off the back and give me the pcb number should start with Lj92

Greetings israelmaker,

In order to receive true high definition television, you will need a high definition cable box. Basic channels are going to look more grainy and not as clear overall even with an HD box, however you won't be able to view or decode the actual HD channels without a box.

In addtion, what type of cables are you using to hook up your existing box? This can have a substantial impact on the picture you see.

I hope some of this helps.

Dorothy
Go Ahead. Use Us.

IT COULD BE THE Y LOWER BUFFER BOARD AS MINE TOTALLY WENT BLACK AND I WAS TOLD THAT IS THE NORMAL SYMTOMS

This can be caused by two things, a bad address board (low $) or a bad plasma panel (high $). The only way to tell which it is, is to replace the corresponding address board and see if it fixes it. Hope this helps.

you must not have the correct picture settings in the cable box, as although they are not HD they will still be widescreen, so check both tv and box for picture settings.