Hitachi 32 No Picture or sound

A high pitch sound can be a capacitor losing power it would sound a bit like a fire work. most have back up on the board but it put more pressure on them the more times you use the tv. would check them and replace. all of them can be 5 in a row in some models.

The audio portion of the main board is failing. You can get a replacement here: TV Parts Universal TV Stands DLP Chips ShopJimmy

hi, try these steps...

Use the source button to ensure that source is not set to the wrong input.

Try unplugging power cord for ten minutes, to ensure it is not a setting problem.

Check all the video cables at the back of TV.

Check Light /Color settings.

If problem persist and does not depend on external receiver or settings, then it is likely an internal fault.

If it has sound but no picture then one of the following parts is faulty, and must be tested and replaced:

The inverter is the high voltage board that provides variable power to the backlight lamp. This is the most common. When inverter is faulty you can get no picture, or a very dim picture that can only be seen by pointing a torch light with a 45 degree angle on the LCD surface from very near distance.
The inverter must be tested by reading voltages with a multimeter.

The LCD ribbon cable/LCD display and connectors.
This is quite uncommon, but happens. If the TV had been hit or moved the LCD cable may have slipped out, or the LCD connector may be damaged.

The LCD controller board.
This is the board that controls the video signal, it is difficult to test, as there is need to read determined values on IC pins. To test this board you need to purchase a service manual and follow the troubleshooting diagrams on service manual.

Input/Output Signal boards.
This are the boards where you connect the video and audio cables, if a signal board is defective, then you may get no picture on particular inputs located on faulty board.

good luck!

Unplug,replug the tv back about an hour later.Go into the tv menu,go to SOUND,go down to reset it to back to factory setting.The sound now should return,not,than ur tv the Tuner board have problems,call for warrenty serviced.

Try to unplug the tv for a few seconds and then plug it back in again.

you might try checking the sap (secondary audio programming) option in your tv if it has one make sure it is turned off. if it is off or does not have that option you will most likely have to take it to a repair shop. i would not try to fix it my self as you will do more harm than good.

TV always has high voltage shock risk while repair. As you said you are not familiar with TV repair so better to handle repair person this issue.

Good Day;

Some cable techs are good but too many are not.l So, if you have not solved this by now try this:

Unplug TV & box, wait 5 minutes plug both back in (reboot).

Good Luck.

I have a question? Do you move your Television frequently, OR do you unplug it frequently when it's not in use? I have found that doing either or both of those things can bring on problems, especially audio problems.

I've had the disappearing sound problem twice with my Element FLX-2610. This latest time I was stumped because the full scan didn't resolve the problem. And of course, the sparse manual that comes with the TV contains no troubleshooting advice at all.

But I did find a suggestion on another sveral other sites: Reset the TV. You might have a small reset button (like you would find on a DSL modem) somewhere on your TV but there is a manual way to do it two. Whichever way you do, MAKE SURE to disconnect every single device (yep, it's a pain) and UNPLUG the TV before doing this.

To reset with a reset button, disconnect devices and unplug the TV. Depress the reset button for 5 seconds. Reconnect devices, then plug in the TV.

Manual Procedure:
Disconnect all devices
Unplug the Television
Using the on/off button on the Television (NOT on the remote), depress and hold the button for 5 seconds.
Reconnect the devices, then plug in the TV.

Unless something has shorted out or burned up inside, this resetting, as a last resort, should fix the audio problem. Worked like a charm for me!

Good Luck!
Nena

Not a home repair take it to a repair store.