Question about Proton R5A Clock Radio

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Proton P300 AM/FM Radio

Does anyone have a wiring or circuit diagram for this radio. In addition can the 110V AC radios be simply converted to run on 240V AC

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  • grandray87 Oct 08, 2008

    Have just purchased a Proton 300...when turned on it started to sound at all...lights work fine.....any thoughts? Thanks



6 Suggested Answers

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Posted on Jan 02, 2017

  • 1 Answer

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

The battery is located on the display circuit board at the front of the unit. It's a bit of a pain to get to.

You'll need to open the case, unplugging the wiring harness plugs so you can take the two halves apart. Next, remove the strip of circuit board at the top where the snooze/alarm and other top button switches are. Then you will be able to get to all of the screws holding the display circuit board to the front of the case. The battery is soldered to the board. I'm not sure what type or voltage it is, but it's probably a single-cell NiCd at 1.2v. I think the best replacement would be a supercapacitor but I need to figure out exactly what the battery is first.

It's a great radio that's worth fixing. If anyone can tell us what the battery is, please post! Mine says "860" on it.


- Phil

Posted on May 31, 2009

  • 666 Answers

SOURCE: Proton 320 clock radio won't stay off. Comes back on by itself!

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.

Posted on Apr 13, 2010

  • 167 Answers

SOURCE: I have a proton 300 table radio and it has very poor reception.

I had this problem too, and fixed it by repeatedly and rapidly cycling the radio between AM and FM. Those buttons on top of the radio collect dust, which gets down into the mechanism and causes poor contact. Pushing the AM/FM button a bunch of times restores the contact. However, in my case this problem was an early warning of other problems to come: phantom turn-ons, etc. Eventually you'll find it necessary to take the unit apart and REALLY clean out all thos switches. I'm at that stage now.<!-- from fixya rte -->

Posted on Aug 11, 2010

  • 3 Answers

SOURCE: proton radio

I simply cleaned my red switch by spraying it with tuner cleaner and the problem went away (it will return in a few years and cleaning it will correct it again). The switch can only be cleaned with the radio open. A can of tuner clean/lub with a small straw will be needed.

Posted on Aug 28, 2010

  • 124 Answers

SOURCE: My Proton 320 radio has stopped working, although

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.

Posted on Nov 07, 2010

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