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I have a Proton 300 table radio - the big one, not the clock radio. One day, the tuning knob did not change the frequency. I thought the radio was a digitally tuned radio. I opened it up and found a...

I have a Proton car but I have never heard of a Proton radio.

As a matter of general interest, the flywheel tuning system was used on early radios before the superheterodyne system brought us agc lines and such sophistications. Selecting another station was a noisy business and flywheel tuning allowed the dial to be traversed quickly with a flick of the wrist. Those flywheels were heavy and mounted in ball bearings...

The trouble with trying to obtain spare parts for radios is mostly you can't. The manufacturer uses mostly bought-in standard electronic and hardware components and makes as little as possible, apart from the cabinet, the circuit boards and a few other bits and pieces and then will assemble what is generally regarded as a consumable item. The manufacturer's interest fades quickly when the warranty expires. Whatever (few) parts remain will be priced not to sell in order to build in obsolescence.
It is mostly expected that minor repairs will be handled by local repairers using standard parts until it becomes uneconomic or obsolete.

It might be possible to locate another plastic "flywheel" but searching would be a mammoth task. The number might not be a part number, might have been made by anyone and Proton is such a popular brand, model, type a search would not be easy.
The best alternative is to repair the original, adapt something else to do the same job or have a replacement made or devise another method of doing the same job.

Good Luck!

Apr 15, 2017 | Audio Players & Recorders

1 Answer

My Proton 320 radio has stopped working, although the clock function still works. Is this a simple fix? Where could I find a 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.

Oct 23, 2010 | Proton R5A Clock Radio

1 Answer

Lost my 'off' ' button on my Proton 320 clock radio!

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.

Sep 29, 2010 | Proton R5A Clock Radio

1 Answer

I have a ten year old Proton Clock Radio RS-330, now Sangean RS-330. The flourescent display seems to be about half out, and the time display is barely visible in the dark. Can this be repaired, and by...

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.

Jun 28, 2010 | Proton R5A Clock Radio

2 Answers

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.

Jun 11, 2010 | Proton R5A Clock Radio

1 Answer

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.

Apr 13, 2010 | Proton R5A Clock Radio

3 Answers

Proton jumbuck radio/cd removal & replacement with single DIN

take a flatblade and pry the panel that is clipped in around the radio.remove the 4 bolts holding in the radio.

May 23, 2009 | JVC Car Audio & Video

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.


- Phil

Apr 30, 2007 | Proton R5A Clock Radio

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