Proton Model RS-420 clock radio lost power back-up

Both AM and FM channels needs aerials to work. Usually the AM aerial is built in, and the FM aerial is a wire that need looping up. But if it was okay that last time you turned it on and you don't have a cat that chews wires, the radio section may have just failed. It is 32 years old. The other thing to check is that the volume control hasn't been turned down to zero.

https://www.google.com/search?q=proton+rs-420

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check first for any fuse blown

There is a battery backuo in the radio. This is probably powering the clock. It looks like the radio power supply is either fried or the hardwired fuse is blown.
Take a look at the manual. If you take out the battery back up does the clock still work? GPX MP3 Player KC232S user manual

Unfortunately, Proton discontinued these a very long time ago. There is not very much information available about them. The cause for the radio malfunction could be a number of things. One possibility is the switches. There is a foam gasket around the switches that degrades over time. If pieces of it get stuck inside the on switch, or lock the off switch, it would prevent the radio from working. You could try taking it apart and use a can of compressed air to clean out the switches. I had a problem with the radio turning on all by itself and the compressed air cleaning solved it.

No need to worry, you can buy adjustable knobs and at radioshack and ebay. However if the button broke off you need to go in and replace it.

The display itself may not be the problem which may be related to the power supply for it instead. Some technical skills and a decent multimeter is the minimum you should have to determine the source of the problem.

If you are looking for a local service company, you should always post your ZIP code so a tech in your area is likely to respond.

The tuning module within the radio is getween the base circuit card and the display. A shot of tuner cleaner into one of the ports will usually bring back the FM performace (I just got done diong my own). Also, it goes without saying that you need to make sure your radio still has its antenna wire and that the vacuum didn't eat it. If this is beyond your skill level, find a computer geek (there are few radio geeks any more). Commercial repair would cost more than the value of the radio.

check power switch if not block and i good position. and also monitor by multitester if the continuity of that switch cut in off position.

My problem was simply a remote pad ceasing to function. I don't need to pay for a plan to replace.


Thanks,

Sorry it took so long to answer your question about the Clock/Radio. This look like a problem with the Clock/Radio's Microprocessor. You will need to reset the microprocessor by removing all power sources to the microprocessor. This means removing the Clock/Radio from the A/C power source and removing the internal battery (CR2430). After removing all the power sources from the Clock/Radio, let the Clock/Radio set for a period of about 3 hours. This will let the power completely drain from the microprocessor and reset it to the factory settings. You can then reinsert the internal battery and plug the Clock/Radio into the A/C power source. The Clock/Radio should have reset and the functions returned to normal operations. If The Clock/Radio functions have not returned to normal. You will need to let the Clock/Radio's microprocessor drain off the power again and put a new internal battery (CR2430). Then test the Clock/Radio's functions again. The Clock/Radio functions should have returned to normal operation. If you are still having problems getting the Clock/Radio to return to normal operation. You can call the Emerson customer support at this telephone number 1-800-909-1240- Call them between the hours of 8am to 4:30pm central time USA. Give them the make and model number of your Clock/Radio and ask them for their assistance. I hope this information helps you with your problem. Thank you for using FixYa and have a nice day!