Question about Sharp DVHR300U 109-Hours Video Recorder
I have a subject tv that has lost its remote control input due to a burst of high power RF from a defective transmitter (I think) The result is that it will not respond to the remote and I want to over-ride the remote control to switch the set on and off on the wall switch. Anyone know how this might be done please? The circuit board is a mystrey as nothing seems to be marked in a way that I can find my way around the circuit for powering up. Thanks in advance gentlemen. Gwalia
Unplug TV, take off the back. One each board there will be capacitors. the tops are flat unless one has blown then it is bubbled up. If you find one that is bad, copy the number and search the internet for a replacement. Unsolder and remove the old one ( there is a line drawn on the negative leg, mark the neg side on the motherboard so you can replace the new one the same way). Now solder the new one back onto the board. This worked for my TV, hope it helps
Posted on Jun 01, 2017
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Posted on Jan 02, 2017
SOURCE: LC-65D64U Sharp Aquos
Call sharp back again and tell them you first want to register for aquos advantage program, which is free. By doing that your service will go much quicker with them. You then tell them that you want to get set up for service. They will have one of their authorized professionals come and fix your tv in a matter of days. If their tech cannot fix it, they will replace your tv free of charge as long as you are within your warranty.
Posted on Dec 12, 2008
SOURCE: lost access to control SHARP TV
Unplug your unit and plug it back in after 2 minutes. When you plug it back in, try to use the remote to turn it on and see what happens. Good luck to you
Posted on Apr 17, 2009
Voltage checking and caps inspection will be the first thing to do.
If you can post the pictures, that will help a lot. Look at the inverter board to see if you are getting 12~18vdc feeding it, also look for caps with leaking/bulging top.
See some pictures here:
Posted on Jun 29, 2010
Testimonial: "Example pictures quite helpful. I do some more visual checks and then post pictures of my power supply and ask for test locations. Thanks"
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