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Posted on Jan 02, 2017
I had a similar problem which I have partially solved. The power light flashing could be due to a shorted electrolytic on the power supply board but in my case it was a shorted IC on the main board, the one with the input connectors. The IC marked 7001 shorted and got hot enough to melt the plastic. Replaced it with a new one from Mouser. The supply measured on the end of inductor 5001 farthest from the IC reads 12V now. This is a surface mount part and has a pad on the bottom that may be soldered to a pad under it. I had to cut the IC apart carefully with a Dremel cutoff wheel to remove it. That fixed the problem with the light and the remote now turns the TV on and off so the logic is working.
I now have the problem of the backlight not turning on. The driver board, the ones with the transformers, are made by Intechwave, the only info I can find is here: http://www.peopleworks.co.kr/kor/product/product_list.php?intDivision=4&intClass1=16&intClass2=41
This a 45kHz RF driver and it is not starting. If I can figure out why I'll post it for all the people who reported slow or no turn on of the backlight. These boards should have 24V between the red wires on the connectors and ground, as mine do.
Posted on Jan 27, 2009
SOURCE: I must be doing something wrong !! My Technika 22" LCD TV goes through the set up process and only picks up the BBC channels , Can anybody tell me how I can view any of the freeview channels ???. They
Hi I am Vortash .. usually the problem is aerial the digital aerial is diffrent to the old UHF aerial and you will need to change it should you still be using it .. from what you say the set is working fine and you didnt do anything wrong .. it is just like unlike the old annalouge signal where you would get a picture even if it was poor .. digital systems are less forgiving of low signal and just blank the low signal channels out .. to check for sure if your not already , use a set top aerial.. and move it about to find the best signal if you get more channels problem found so update your aerial ( Or stand the kids in the corner holding the aerial ?LOL ) I hope this helps and that you will be on freeview soon .. oh and check with the ITA that your area has full Freeview transmissions .. there is a 24 hour call line .. on 0800-40 85 902 and they will give you all the information you will require hope this helps Regards Vortash
Posted on May 20, 2009
First, check the power supply for the backlight. It's usually a 24 volt supply. Look for swollen caps. If that is ok, go to the inverter board and inspect for damage, ohm out the inverter transformers. Last is to test out the lamps seperately with an external inverter. If a lamp goes out this way, it is bad and causing the whole backlight to go out.
Posted on Apr 14, 2010
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