Question about GPX KCL8806DT 7 in. Portable Television
The unit was out of use for 6months and was working 100% when it was stored in clean dry area. Now it powers up, tv functions, radio tuner works, remote works, all funtions except sound. When changing modes, or powering up, I can hear a faint hum thru the speakers. The remote switchs from mute to sound, and the speaker symbol is displayed on display window. Any body got a clue??? Thank You!
Hello, i have fixed a few of these units, Mainly the problem is, is the crappy design inside, take out all of the screws from the bottom of the unit, be careful when pulling the top cover off cause the battery unit on the side is detachable and could be stuck and u can rip the wires off the system board. now you will see the 2 speakers, take a razor blade and carefully cut away the glue that holds the speakers in, and there may be little white plates with 2 screws that hold the speaker down also. Now take the speakers out and test them on a home entertainment center or a cd player that has red and black connectors for speakers in the back. See if they work first, if they do carefully reconnect the speakers to the motherboard and reseat the connectors back in with ease. try the unit again. if it doesnt work check the solder joints where the connectors attach to the motherboard, sometimes they will come loose. From my expierence with these units is they tend to jam the speakers inside so tight that they eventually stop working, so be sure to only use the connectors to hold them in.
Posted on Mar 04, 2009
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Posted on Jan 02, 2017
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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.
4.If you 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 entire power supply board, click this LINK.
Hope I helped you.
Thanks for using fixya.
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