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 smoke...no sound at all...lights work fine.....any thoughts? Thanks
    Ray


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6 Suggested Answers

  • 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.

Cheers,

- Phil

Posted on May 31, 2009

yammy_alf
  • 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

Cytherian
  • 109 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

Cytherian
  • 109 Answers

SOURCE: I have a 25 y. Proton 300 radio, which until

It sounds like the tuner is out of alignment. A number of things can cause this kind of problem. However, a realignment is a very costly proposition, especially when considering the used value of the Proton 320. If you really like this radio, you might want to try buying a used example off of eBay. They come up very frequently. Only... be selective. Don't pick anything from a seller without a lot of good feedback. And don't overpay ($50 tops).

Posted on Nov 07, 2010

Testimonial: "Thanks for your help. I'll check ebay and keep your $ limit in mind."

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1 Answer

Appliances plugged into the mains cause interference in the fm signal which means radio off if appliances in use. Also interference if Bose iPod plugged into mains next to radio.


You can buy an AC line conditioner, they range from cheap and useless to expensive and exotic, which is able to filter interference coming over the power lines. Simply plug that into the wall, and your radio into the filter, and there should be an improvement.

You can also try plugging the radio into a different outlet, making sure the outlets are wired properly, and try moving the radio to a new location further away from the source(s) of interference.

Don Miller, CET
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The FM tuner picks up only a few stations and those are very faint. Two other Proton model 320 radios work fine in the same area. I live on Long Island where the reception is rather strong.


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.

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The bulb is a small electronics bulb on the left side of the lexan display cover and it is covered with an insulated foil tape. Measure the voltage on the bulb with a voltmeter and go buy a replacement from any electronics supply place or radio shack.

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1 Answer

Improve reception


HI there,

Well Yes you can improve the reception, please follow the below steps -

Improve FM Radio Reception -
 
1. If you don't have an antenna connected to your FM receiver, purchase a simple dipole antenna--a simple T-shape flexible wire-- and connect it to the FM antenna inputs on the receiver. Because FM signals are directional, you'll want to experiment with the positioning of the wire to find the best reception of the station you're trying to receive.
 
2. If you're still not getting a good signal, try an indoor amplified antenna, which you'll find at an electronics store. Don't buy one unless you get a guarantee that you can return it for full credit if it doesn't solve your reception problems.
 
3. If your signal is weak because you live a long way from the transmitter, install an outside antenna and mount it as high as is practical. If you're primarily interested in getting signals from one station or from a group of stations in one direction, get a directional antenna and point it toward the transmitters.
 
4. If you're using a portable FM radio where the only antenna is the power cord, stretch the cord as straight as possible and experiment with positioning again.
 
5. Temporarily switch to monaural mode to improve a weak signal on an FM receiver.


Improve AM Reception -
 
1. Gradually rotate the radio 360 degrees. Leave it in the position where it sounds best.
 
2. Reverse the AC plug if it isn't polarized. (If you can flip the plug over, then it's non-polarized.)
 
3. Plug the radio into a different AC outlet.
 
4. Move the radio closer to a window.
 
5. Experiment to learn if appliances and powered products in your home are causing interference: computer monitor, television, electric blanket, light dimmer, fluorescent light, hair dryer, air conditioner, smoke detector. If possible, turn off the offending item. Otherwise, move the radio to another room.
 
6. Upgrade to an external antenna if your receiver, tuner or radio has a place to connect one.
 
7. Buy a passive AM antenna that doesn't need to be connected to a radio or receiver.

Good Luck!!

Thanks

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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.

Sep 24, 2008 | Proton R5A Clock Radio

1 Answer

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.

Cheers,

- Phil

Apr 30, 2007 | Proton R5A Clock Radio

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