After a couple of months of use both sets refuse to switch on with remote or manually. If they are unplugged and left for a couple of months they start working again. I have to alternate their use. The sets, when switching on sometimes respond with a quick flash of picture before switching back off. At present neither set will switch on. The only AV used is a Phillips freeview box. Both TV's are around 8 years old and this problem has happened for the past 10 months, soon after we had some electrical work in the house. Could this be the cause?
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Re: Thomson and LG TV's difficult to switch on
It most certainly could be the cause of the problem. Most of the time when a TV set comes onm then switches off, its a fault in the power regulator circuit. Regulators can go bad all by them selfs, but most of the time, they fail due to excessive AC voltage, and or ppower surges, such as the oin off action of intermittant power would cause. On sets this old, Im not sure you would want to invest the type of cash to repair. Its onlty a guess but I would say a minimum of 125 to repair them? Its a call only you can make. You should go to this link and read this first. http://www.techlore.com/article/10602/ Good Luck
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Set-up (Programming) procedure is too much to type in here, and is not practical and it will differ brand-to-brand remote controls. If you wish to get more; check the sites linked here. It has set-up code list & set-up procedure to many popular brand remote controls. One among it has general set-up codes to check with TVs and other devices are given, in the order of the 'device's brand name list' in alphabetical order. Pull up older posts. Search the sites by type in the brand name to your device in its search box at the top right part of the display window. It will help you to find the document easily...
If you wish to get more details; check the sites linked here. It has set-up code list & set-up procedure to many popular brand remote controls. Common codes used for devices too are given, in the order of device name list in alphabetical order. See it in "Mosaic" or "Magazine" view. It will make surf easier. Or, do a search by type in the brand name of your device at its search box, and press "Enter". http://remotesearch.blogspot.com/ http://electrohelponline.blogspot.com/
Usually to fix most odd problems on the Thomson digi box you should do a hard disk format every couple of months, select menu, setup, help,
press green button on remote
this shows advanced menu, press blue button, warning should show,
press green button to proceed
takes about 2mins you lose all recorded programs
If the problem is the box stays at red, and won't switch on,
pull the mains plug wait a few secs then push and hold the the standby
button on the main box (not remote) then insert mains plug, as soon as the
red light flashes release the standby button and very quickly press
menu and OK in that order, don't hang about, it has to be done very quickly
I had to do it several times before I got it right, this loads a preloaded firmware
and the box will come alive again the box will upload new firmware in a couple of hours.
It seems that the SAP, no audio, distorted audio is a common problem for some RCA units even with the use of the original remote and in your case made more difficult with a replacement remote.
Two things you can try:
1. Some say that unplugging the TV set for a long time, a couple of hours at least will do a hard/system reset on the microcontroller inside the TV hopefully resetting set-up the audio (including SAP) to default;
2. contact Customer Support at Thomson and explain your problem;
3. Try going a google on "RCA SAP manual reset"; or
4. Buy an original remote and not another replacement.
Hope this work out for you and give you some ideas. Pls post again how things turn up. Good luck and kind regards.