Check the remote control for its infrared emission. Check it with fresh batteries. Check it by pressing all the keys. You can detect the presence of infra-red emission from the remote control, using a cell-phone camera. If you wish to get more details about how to check a remote control, please visit this site. One among the posts has details about it. Surf the site with patience. In some cases, the remote control might need to clean.
http://remotesearch.blogspot.com/
Search the site by type in this key phrase "how to test a remote control "in the "search box at the top right of the display window of the Homepage" to get the related post quickly.
https://www.youtube.com/watch?v=jsSCNCW3IbQ [open and clean]
https://www.youtube.com/watch?v=Qp-l1uh-5gE [open and clean]
SOURCE: theres no picture on my sony bravia KDL-40S4100
Try pressing the TV/Video button. The problem could be that the TV is set to an input with no source.
SOURCE: Polaroid 4011-tlxb. Power to tv and it was turning
if you replaced the supply board then there is issues with the decoder board as you would need to chec kthat and see if its not the issue.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620
SOURCE: 42" LG 42LC7D LCD TV stuck in demo mode?
Did you have any luck? My LG is stuck in demo mode too. Menu button doesn't work, and keylock was on as default so I can't use the buttons on the TV itself.
SOURCE: panasonic viera TH50PZ700B 4yrs old. will turn on
Tries tv unplug,replug it back like about an hour later for the tv to do a resetting itself back to the factory setting.Go into the tv menu go to PICTURE to go down to do a resetting to the tv Tuner signal board.Tries scanning for channels again.The tv should be work again,if it still have the same result.The tv main board,the tv Tuner signal board is bad.Can u do some mechanicals work like take things aparts and putting it back together again?Yes?Try website like Ebay.com to buy a whole refurbish tv Tuner signal board for the replacement.
SOURCE: Hyundai HQP421SR will not power
This is a fault solution which can be checked and corrected by you assuming that there is no component failure. There is a high possibility that the components over a period of heating and cooling, tend to bring on a problem of dry soldering. So my advice is to check the set for some loose joints that have played on to give you these erratic shut downs or poor performance. The best way to check for loose connections is to tap lightly when the set is powered on , If there is change while tapping then it seems that there are DRY solder joints. Remove main plug, the covers - with caution of high voltage, check for dry joints, use a good soldering iron to solder all suspected points. Sometimes the fault occurs when the set warms up, if so you can simulate the heat using a hair dryer on the suspected areas, try with the power supply, distribution, Processor controller, driver controllers on the A/V related sections. Also the use a FREEZE-IT spray can simulate the components to cool and show up the fault. Based on the above method you must be able to locate the area of fault and solder the sections. Sometimes large IC's- ones with more pins- tend to have drying in some pins and so cause faults related to the IC's protocol. Have a rough idea of looking into the areas to reduce the time of probing. Check for tips to look into the SMPS unit with some of my tips: http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies Thank you for using Fixya.
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