Question about Samsung HCJ552W 55" Rear Projection Television
TV stopped responding to remote. I can turn on manually and adjust but there is no external switch for digital function, only on remote. TV responded intermittenly to remote before it stopped responding completely. I have the original remote and a universal. I have tryed both and am pretty sure it is the TV. I have looked for the IR circuit and sensor but am not skilled in this field. I have a service manual and am an X-aerospace assembler. Is there a circuit I can manually switch to enable the digital function so I can watch HD again? Or is this a pretty easy fix to the IR input circuit?
You can check your remote with a celular camera turn on the camera and point to the lens you most see the remote blinking if yes then wait for techman he will give you somes tips...good luck
Posted on Aug 05, 2006
Had the same. Try www.partstore.com. They have the reciever for total price $27.50 including S&H. It's plug and play so all you need to do is dig down to it and replace the part.
Posted on Sep 18, 2006
The power button that lights up on the front of the set is also the IR receiver. Clean the little center spot on the power button. This fixed the problem. It gets dirty from pressing the button with dirty fingers, got kids.
Posted on Sep 30, 2009
The remote control could be bad and the most likly trouble maker. If you can't get the universal remote to at least turn on and off the set, then most likly you have problem in the remote sensor circuit, all the way up to the microprocessor IC. The proper way to trouble shoot this circuit would be to connect up an isolation transformer to the A/C plug on the TV set, and then get a ocilliscope, and start to trace the remote sensor data output from the sensor. If the signal looks distorted or very low or is not present at the remote sensor data output, check the b+ going to the remote sensor. Most of time it is 5 volts. Some sets a little higher. If the data signal is present and looks strong, trace the signal along the Printed circit board. Thru all the jumpers ,capacitors, ect., up to the input to the microprocessor. If the signals good all the way to the processor ,sorry to say the IC is bad. If it turns out you need a remote try 1-800-remotes or http://www.remotes.com Good Luck
Posted on Aug 05, 2006
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Posted on Jan 02, 2017
SOURCE: Green Plaid Screen
I think what you are describing is a form of line paring which is caused by a defective IC in the video circuit those inputs are feeding. Post a email link ad I will send a pic of a screen that has this problem and you can let me know if thats what your experiencing.
Posted on Jan 27, 2008
If you are not able to bring up the TV's onscreen menu as well, it appears you have a problem with the TV's mainboard. You didn't mention if the TV had any blinking error codes so if there aren't any lights flashing on the front, are there any on the sides or back to indicate the problem? Not all TV's present error codes, but since the TV is maintaining power, it's worth a shot to look. You could try a power drain:
1. Unplug the product's power cable so the device is not grounded to the house. 2. Press and HOLD the product's own power button for 1 minute to drain the capacitors. 3. Plug the product back into a wall outlet and try to turn it on.
Note: This procedure works with battery operated devices as well so remove the batteries and hold down it's power button. Electricity can remain in capacitors and on circuit boards enough to prevent normal functionality. By clearing the residue electricity, your product will have a fresh start and many times this will resolve a buggy or non-responsive device that appears to be dead.
If this still doesn't resolve the issue, service would be required so you would want to contact Samsung regardless of your warrant standing for service options.
Posted on Mar 26, 2009
After reviewing the service manual for this set, the problem is is in the DIGITAL BOARD. To get the right Digital Board you will need the Version number of the TV.
Posted on Nov 09, 2009
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