Question about RCA L37WD12 37 in. LCD HDTV
Why does my RCA LED42C45RQ keep cutting off after a few hours of being on? At times it will not come back on even after unplugging in from one outlet into a different one.
These flat panel tv's from china have cheap capacitors. Check to see if any capacitors have pushed up top, this indicates blown or dry capacitor. Replace with exact value, in the power supply area (is where they go bad). TV has a monitoring circuit, and if standby (or ready voltage) is not adequate, tv will shut off or stay in standby mode. Little tired today, so hope that gives you an adequate answer.
Posted on Feb 14, 2014
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Posted on Jan 02, 2017
These units bave a bad power supply. To get it fixed is easy.
Take it to a Servicer center where they repair tvs.
Since there are no srevice manuals they will not be able to repair this unit. With the Work Order in hand call 1-877-297-8391 and they will send you a tv.
Ps.. Make sure you get a work order or a copy.
Posted on Jul 21, 2010
This is a very common problem with these models.
The problem is very likely a fuse that has blown, if the following is true:
No Video on any input BUT HDMI and
No Audio at all.
Purchase a fuse, these are freaking tiny from digitalkey.com or mouser.com F1455ct-nd
Pull the back off of your unit
Pull the cover off of the PCB housing. It is the box that contains the hook ups including the cable tuner.
The silver box that you screw the cable to is where you begin to look for this fuse.
About two inches behind this silver box is some numbers printed on the board 7c32 and partially obscured will be 1c33
Using a big magnifier look next to the numbers listed above, you should see a tiny rectangle fuse with an F on it.
This F fuse is a 500ma fuse that is too small for the load
The fuse listed above will have a G on it. It is a 750ma fuse.
Call the repair shops in your area, tell them that you know the problem, have the part and you want to know how much the bench time and labor will be to repair your unit.
Posted on Jul 23, 2010
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