Samsung LN46A550 TV with a Xentech IR receiver 291 Series
New TV (6-4-08) Using with Direct TV with the above IR receiver. Power on the TV and the red light in the IR receiver comes on and stays on. Tried a second unit with the same results. Now both IR receiver's will not work with any TV. Why is this new TV giving off a IR siginal?
Are the IF units bad?
Re: Samsung LN46A550 TV with a Xentech IR receiver 291...
Just got a new Samsung Flat screen today and am new technology challenged. Cannot sleep because the red light is still on on the tv set, read the instructions, and would this red light mean that it is in standby mode? Do I unplug the tv from the wall? I am getting very sleepy.
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Congratulations !! Now finally you can buy new TV for you. Same case happened with my ViewSonic LCD Monitor. Its due to damaged PCB behind LCD panel. Check if you are lucky by searching PCB for your TV.
Reverts eventually means there is some looseness some where. Please check connectors and cables between power supply- TCON, TCON- Panel and main board-TCON. If you cant do it show it to some qualified technician.
Apparently this is a known problem with flat panel TVs made a few years ago due to bad capacitors in the power supply. This same problem appeared in computer mother boards at about the same time so that the capacitors went open or shorted causing problems.There is videos on You Tube that addresses this problem see: http://www.youtube.com/watch?v=ZccykxrtX9g as a starting point and look around for other repairs
Testing remote control: The remote control puts out IR (InfraRed) signal that human eyes cannot see, to find out if the remote is sending out the signal or not you just point the remote at the digital camera’s Lens (Digital Camera can detect IR), you should see flashing light on the camera’s screen when any one of the remote button is pushed. If you do see the flashing on the camera, then the problem is in the TV IR receiver or the main logic board; more troubleshooting with scope will be needed to look at the signals. Parts: www.shopjimmy.com www.remotes.com
You will not have any luck, The Screen only uses RF for control. As far as I know there is no IR receiver on the unit or any RS232!! A nightmare for integrating this product into universal control systems.
Have you tried doing this:
Press and hold the TV button on the remote till all 4 buttons light up and flash(make sure your TV is on). Once they flash, press the power button, then using the channel up button, point the remote at the TV and keep pressing it till the TV turns off. When it does, press the # sign and that will lock in the new found code.
Possibly your new equipment doesn't use IR (infared) as the media for the remote. I have used the pyramid and different versions of it for DirecTV/Dish and most everything else for years with no major problems. occasionally a unit will fail, but that happens. If the red light blinks on the "transmitter" (no antenna) it should indicate that it is receiving IR from the remote. The "receiver" (antenna) has to be oriented correctly in front of the unit to be controlled. I put the receiver no closer than 5' to the unit. The signal coming out is a cone shape and it's easier to aim the further away you are. As a test, you could try using the remote to control a stereo or something else, even a fan. If the remote has a led or a dark red plastic cap on the front end, it should be an IR unit.