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RCA 62" mod p46770ck need

RCA 62" mod p46770ck need schematic, probably just for power supply. TV shut down and appears dead.

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  • Anonymous Dec 26, 2008

    I have the same problem. Yo can push the button and it lights up for about 1 second and goes back off.

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Now I know the rest of the story: After I went to see the TV I was told it had happened after a storm the next day the set was dead. She had already recieved the insurance money. She said she did not want to spend much money on it as she obtained the set at a garage sale for 60 bucks 6 years ago. As I looked into the circuit board I noticed evidence of water damage and looking up the case and on top, yup, thats why she got it so cheap. I do think it is lightly damaged. As a grandmother of a close friend I didn't Intend to charge her but she gave me some bucks and the insides of the tv. I'm sure their isn't much time on it. If any one wants some parts on a 1993 RCA mod p46770ck (48" screen) contact me thru snailmail @ Whiskers, rr1bx57a zip 64632 Include your ph.# and I will call you. (I don't use the computer every day)

Posted on Jun 29, 2008

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· Symptom: No Convergence, Picture is bowed and distorted, colors don’t align.
The Fuse for the convergence power supply has blown
You'll also notice that the convergence settings have disappeared from the on screen menu. The fuse likely blew because of a fault on the convergence board. If you've never done soldering or dismantled a TV before this is probably not the best place to start. The back cover needs to be removed and the fuse (see picture) identified, the deflection/power supply board needs to be unplugged (label or mark all connectors beforehand) and flipped over and the fuse checked/replaced. You need a soldering iron and solder ****** or solder wick and a multi-meter to check the fuse. If you want to tackle it yourself see attached image for reference or get a quote from a repair shop (approx $200-$300 Total) the convergence board may also need repair.



  • Symptom: Dead Set - TV Tries to Start or intermittent dead.

The set could be in shut down mode due to a fault detected in the power supply, vertical or horizontal deflection circuits.
The common problems with this chassis that will cause a dead set or intermittent dead set symptom are, bad power supply capacitors, bad flyback, bad HV cap in horizontal output circuit and cold solders (on opposite side of board) especially under the flyback area. To gain access to replace any of these parts the back cover needs to be removed and the deflection/power supply board needs to be unplugged (label or mark all connectors beforehand) and flipped over.
These are only the most common problems and it could be any number of other faults.
If you have electronic (TV) repair experience check the items mentioned (see picture), otherwise it's best to seek a qualified RCA tech for an estimate/service call.

· Symptom: Erratic operation of set – turns off by self, the volume or channel changes by self or on screen menu appears intermittently.

Switches on the front panel assembly (FPA) problem.
What happens with this model is the FPA switches (one or more) start to conduct just as if someone was pressing the buttons. This in effect locks up the system control or causes it to initiate erratic commands.
The way to determine if the FPA is bad is to remove it by unplugging from set. This requires front panel disassembly.
Note: The remote will still work with the FPA removed so the set can be tested.

Hope this helped, johnnydiode, Fixya.

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Ed
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Have a Great Presidents Day

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