My samsung lcd tv is giving me a weak or no signal message. it worked fine earlier
no signal been trying for 10 hours to play with remote control and program under CHANNEL all versions without luck. what shall i do?
Since my problem (Samsung/Comcast) began with a channel selection button pushed on the TV remote when it should have been pushed on the cable remote, I figured the problem lay with the TV. Although I was getting the "weak or no signal" msg., the actual signal strength bar graphic showed it to be strong. Disconnecting did no good. I surmised that the TV was simply not recognizing the box.
I looked at the manual for my Samsung 750 model.
Page 20 discussed "Selecting the source". I accessed the TV menu and selected "Input", then chose the "HD..." item from the highlighted list. Voila! My tv works again.
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If this happening when TV is viewed then it is possible that the auto shut off is active as no signal is detected by the processor and so is instructing to shut down.
However this fault is related to a problem in the signal detection circuit, if this happens with the auxially circuit- play station- then some logic gate is faulty which needs to process and detect the signal.
Remove power for few hours and see if the fault resets, if not the circuit needs a technical review.
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If you are trying to view the DVD on the Samsung TV,
you need to firstly connect the DVD to the appropriate connection on the TV.
Once connected, with a Samsung TV, you need to press the
SOURCE button on the TV remote control to view any external sources such as
your DVD player.
The ‘NO SIGNAL’ message would indicate there is no signal,
if you have not tuned your channels in, this may be the digital tuner you are
viewing. Press the source button whilst a DVD is playing in the DVD and see if
an image displays.
Using the Panasonic remote, wait until the notice about your lamp goes AWAY (it wont work with the message still up). Hold the volume down on your tv while holding the split/play button on the remote. You will get a notice about 4-5 seconds later that it was reset.
Use the pip button on the remote and the down volume button. press and hold about five seconds.
Sorry I see the model, hold the Menu button on the TV (not on the remote) down for three seconds. Note: Shop Mode is activated in the same manner: Pressing and holding the Menu button on your TV for three seconds. To avoid accidentally setting your TV to Shop Mode, avoid pressing and holding the Menu button on the TV for three seconds or more.