Question about Proscan 26LB30H 26 in. LCD TV
I have a proscan 26" tv model # 26lb30h i plug it in and the red light comes on to say it has power then i hit the power button and the red light trns blue for a few secs and then the hole thang shuts down not red nore blue light and it acts as if it has no power what can i do to fix this and how much would it be to fix
There are two possibilites for this fault. The first one is shorted inverter transformer in the backlight inverter board. The second one is the fault with main board. For both faults, card base replacement is only possible. Check out which board has the short, and replace it.Image of the digital board is given here. Baclight inverter board can be located aty the panel itself, will be fitted vertically at the right or left side of it.
Posted on Feb 08, 2012
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Posted on Jan 02, 2017
If the fuse blows again after replacing it, there's a shorted diode, bridge rectifier, capacitor or transistor in the power supply.
I repair these power supplies. If you need furhter assistance, write to email@example.com
Posted on Jun 20, 2009
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Aug 06, 2014 | Televison & Video
May 11, 2012 | Proscan Televison & Video
Here are steps that may help you fixing the problem. You should
prepare tools and multimeter.
I'm assuming that your unit is dead set 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've 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 on 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.
4.If you see that the fuse is intact on the board, don't attempt to touch
anything because there somefatal components
stored electricity enough to hurt you with a simple mistake only.
The next steps should be done by an expert or qualified technician
because isolating the problem on the power supply is technical and complicated. I would advice also to replace the entire power supply for your convenience if finding technician there is not possible.
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.
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