TV started to require multiple button bushes (on the front panel) to turn on. It worked fine via the remote. Sudenly it will not turn on at all. There is a high pitch whine coming from what I beleive is the power supply area.
I took my multimeter and measured around the CPU and noted that no voltage is present on the VCC and VSS on the chip. I can not seem to find a service manual to show me a schematic, so it makes it difficult to isolate the problem.
The front panel switches and the IR receiver connect directly to the CPU I/O so I would presume there must be voltage always present at the VSS/VCC pins for the power to work.
Any ideas for me on what I can check, or further information I can use to fix this TV?
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The remote sends out an infra red signal. If the TV is not responding it can be that the transparent plastic in front of the receptor is dirty. Try giving the front a good wipe with a spot of soap or detergent.
It is a common problem with remote controls. The power key is used very much and the conductive rubber pad underneath wears out. If you can, open the hand set and clean the under side of the keys with cotton and solvent (after shave solution will do). It will bring back the action. At least for some time. If it does not work, go for new remote control.
I had come home about a week ago and pushed the power button from my
remote but my tv did not respond. So I just went to the front panel and
pushed power but once the tv turned on, the volume was on full blast! I
used the front panel volume decrease to get the volume down, but when I
stopped pushing the button, the tv increased its volume to full blast
again by itself! Naturally I just turned the tv off for a few moments. I
tried the remote again, no response again, so I used the panel power
button. The tv volume was still full blast when it turned on but after I
decreased the volume it stayed this time. The picture is and has been
perfectly fine and the tv was working fine. The next day the problem
started all over and now once we turned it off from frustration of
having to manually use the panel to change channels, it now will not
turn on at all. I have changed batteries from my remote, reprogrammed my
remote, pushed system reset several times, unplugged it for a while,
bought a new surge charge, and even held the menu and device panel
buttons for 10 sec and tried to turn the t.v. on again! What other
options do I have or what may be the issue at hand and possible parts
that may need to be replaced?? Thanks!!
If there is a "Menu" button on the front panel of your TV, you can enter into its menu; surf trough and come towards tuning option. If there is no such button on the front panel of your TV, you have to buy one universal remote control to work with it. Be sure that buying new remote have setup codes for Bush TV. There are very rare remote models have setup codes for Bush Tv. Look at its manual before buying it. OK.
Sounds like a tact switch problem at the front of the set. The switches are just behind the front panel buttons. Don't replace just one. Replace them all. They are not expensive and will avoid trouble later. If one switch is getting stuck internally, nothing else will work including the remote.
I have the same problem, my Bush LCD worked fine last night but won't turn on today. The main power button on the TV puts it onto standby but the remote or the buttons on the side won't turn it on!....HELP!
If both the remote and the front panel buttons do not work, I would be thinking that it is a problem with the TV's main uPC area. This type of fault can be involved, and would require factory level service where the fault can be properly analysed.
I can tell you in advance, that this type of fault can be expensive to service.
to get into the service menu using the remote
turn the volume down with the button on the front of the tv ( do not release). Whilst holdind tv vol- button press the button on the remote with a circle and three text lines for a few secs. This should let you enter the mode.