Question about Akai LCT2785TA 27 in. LCD Television
I'm not sure if Akai has made any of the sets that carry their name; some have come from Samsung and others purportedly by Funai but when I have tried to find service information on given models, it has been a dead end regardless of who made it.
The true manufacturers refuse to recognize model numbers assigned by Akai.
If you had just burned resistors, I might be able to help you but when missing, you're kind of stuck.
Posted on Sep 29, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
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Here are some basic steps that
will help you fixing the problem.
I'm assuming that your unit is
dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no
continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse-
sometimes the fuse fail because of the power
surge, replacing with new one will cure the problem, If this is the case I
would advice you to use surge protector/AVR (Automatic Voltage Regulator).
However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the
linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and
still the unit didn't power up then you have an open parts on the power supply.
see that the fuse is intact , don't attempt to touch anything
because there some fatalcomponents
stored electricity enough to hurt you with a simple mistake only. I would
advice you to look for a
professional to troubleshoot
the power supply. If you want to repair it yourself make sure that you have
necessary tools and test
instrument. First check bad solder joints(re-solder all
cold solder), leaky
electrolytic capacitor(sometimes it has bulged at the top but not all, you better
have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat
sink), open fusible resistor (caused by shorted regulator
Transistor/IC), shorted zener
You may also replace the power
supply board, check it online like ebay.com and shojimmy.com.
Also, check if your unit is under
warranty before opening the back panel, it will void the warranty. Avail it because
the manufacturer of your unit will fix it for free or a little charge only.
Hope I helped you.
Have a nice day!
Thanks for using fixya.
Aug 18, 2011 | Proscan Televison & Video
Power on the unit in the dark room then shine with the flashlight directly in the screen, you will barely see the images. This is because your backlight is not functioning. The following reason is the caused.
1. Power supply - missing B+(supply voltage) coming from this board feeding the inverter board. This is caused by faulty transistor, dried/leaky electrolytic capacitor, open fusible resistor.
2. Inverter board - even the B+ is good from the power supply, if the fuse, driver transistor, driver transformer is faulty no output to the backlight resulting to black picture.
3. Busted backlight - even inverter board is good but if this is busted resulting to black picture also.
Diagnosing the fault is technical and if you don't have necessary tools and test instrument and can't fix it yourself, I would advice you to look for an experienced technician to isolate the problem.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.
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