Our RCA MM36100 36" Monitor/ TV set will often have problems starting back up after being shut down. Sometimes the green pilot light will come on for a second when the power button is pressed, then the set will "click" off. But mostly nothing at all happens when the start button is pushed. We now tend to leave the set on all the time, as it may take days of pressing the button for it to start back up. Every few weeks a very loud high-voltage "crack" sound (like static discharge) will come from the set while running, but set recovers quickly. Every few hours the screen will go dark for a couple seconds, but we're not sure if it's the set, or a problem in our tired old RCA DSS mini-dish box that causes this. Thanks, Hugh Morton
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Re: Set will often have problems starting back up
You have a high voltage arching problem. the crt has about 33000. (thirty three thousand) volts on it. the anode lead is arching to the chassis(ground) around the crt(picture tube). the anode lead is the big red wire on the very top of back of crt. with the back off, you will see the big red wire and it will have a suction cup about 4 inches round connecting to picture tube. unplug. silicone around suction cup. let dry for 24 hours. enjoy. you might get a little shocked even when unplugged, but wont hurt you.
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Thats the Power Supply. You need to call a service man, please disconnect this unit from the Power, It is dangerous to leave it plugged in. what is happening is the set has developed a serious fault, to avoid a fire or explosion, the PSU has shut down the set. that noise you hear is the power supply struggling against the fault. trying to start. Please for safeties sake, get a "Quote" from a reputable, preferably an RCA recommended service centre.
The TV tech isnt too familliar with RCA TVs. The color wheel is the most likely problem no where near 1000. Depending on the model number of your set you can get replacement color wheels at the following link. http://servicemanuals.vstore.ca/
The most common problem with shut down on this model is the HVT drifs. In short, you need to set the G2 to 290v, with no signal and a blue screen. If this is to + or - 5 volts set will shut down after 10 to 15 seconds. If this does fix your set, its a sign HVT is going out. I wouldn't advise repair of this set. Its not worth it.
this a very common ocurrance among these set. I Deal with the rca itc222 chasis daily at the shop. I have found these set can be very tricky to troubleshoot. These set have a microprocessor that will shut the set down for 1 of about 25 different reasons. technicians have a device called chipper check that can read errors that the processor generates. i have found that the majorty of problems are high voltage like the hot and flyback. or the tubes. When you say "power supply checks out" what do you mean. There is a slight chance it could be bad data in eprom too. Does the set make any noise chirps, are there any smells. what was the set doing when it shut down. give me all the details and we will see if we can help since you no what "horizontal ouput is I ASSUME that you have some eletronic knowledge.
The set has a processor that has detected one of about 30 different problems, When this happens it shut the unit down for safety. A technician has special computer interface equipment that can read what errors have caused the set to shut down. I would have to troubleshoot this set further to know what it could be. sounds like it could be a compent that has finally decide to fail.
the rca itc222 chasis has a processor that shuts the set down when it detects a problem for Safety. it can be one of about 30 problems. the computer also records the errors in memory and a technician can interface with a computer to read these errors. after the set attempt to come on 3 times then the set locks up and you have to unplug to reset.
This model has a history of being plaged with bad solder connections, and that may be your problem still today. If your state has "lemon laws" you might want to pursue that venue if contacting RCA directly doesn't produce results. RCA's have been my bread and butter for at least the last 12 or so years in the service business but I would not buy one today for myself.
You have with this set whats know as a regulator problem. Since there are no user serviceable parts in this set im sorry to say your gonna have to take this set into be serviced unless you under stand television circuits. You will need a service manual and a good multi meter and monitor the output from the regulator IC . If it fluctuates all over the place replace it. If it dosent then its in the regulator driver circuit. Good Luck