Question about Televison & Video
How can i set my PROMAC LCD TV to a Manual Mode, because it is in Standby Mode and the remote is not working. PLease help...
Check the remote control for its infrared emission. Without remote control, you can't set it out of standby. If you wish to get more details, check this site. Pull up older posts there. Check the site with patience, as it has over 2350 posts now. All are related to electronic equipment repair help. There is one post have details about how to check and repair remote controls. http://electronicshelponline.blogspot.com/
Posted on Apr 23, 2013
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Posted on Jan 02, 2017
If you still have the TV:
Common cure for "stuck in standby"
1. Unplug from mains
2. Press main power switch on/off about 20 times
3. wait about 5 minutes
4. plug it back in and try turning it on as normal (i.e into stand-by then CH+ etc)
It has worked for me on about 8/10 TV sets found stuck this way
Posted on Apr 21, 2009
Before replacing the main board, the PSU should have been tested. This TVs PSU provides power on different voltages, and each voltage is controlled through a low DC control line from main board. A defective PSU may turn off and restart by itself.
In real word I repair many LCD TVs. I do not get tired of repeating that LCD TVs are very different from home computers. Repairing by simply board swapping does not work. Although this units have few parts, the working process of the TV does not allow identifying reasons of faults from symptoms (with a PC you can often tell), parts are expensive, and testing is always necessary.
In your case for example the problem is likely a faulty PSU, but a bad grounding caused by missing screw may also cause the problem. The PSU, which is likely culprit, must be tested by jumping the control lines and reading volts to main board. This is made more difficult by the fact that the TV is forcing shut down, and turning volts off continuously.
Posted on Sep 13, 2010
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