Question about RCA 27V550T 27" TV
You can also check cp025 & cp024. Now the problem with this power supply is if you find a problem with one of the following parts the have to be all replaced at the same time, because if one part goes it casuses stress on the other parts. Check the test the following parts tp020 dp033 tp023 (if installed) tp025 (if installed) tp022 (if installed) typically only have 2 of the last 3 installed in this tv. good luck.
Posted on Nov 10, 2006
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Posted on Jan 02, 2017
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Dec 04, 2011 | Emerson LC320EM9 32 in. LCD HDTV
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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