« Ed Contemplates Restoring His Sony CRF-5100 to Its Former Glory | Main | Paul's FM Transmitter Comparison »

April 16, 2010

Comments

Huesby

What do you mean with unstrung ? ..That it´s not OK ?

Radio Russ

I had a Proton 320 for several years and used it in my office to listen to music while I wrote software. I'd still have it if one of the cleaning crew hadn't stolen it. I liked it so much I got the 440 tuner and matching D540 stereo integrated amplifier. They have a very cool looking black finish and were top of the line in their day. I've been offered a fair amount of money for the pair of them.

Ed S.

I mean the string has come unstrung, the tuning dial doesn't move the pointer or change the frequency. It's not tuning. But I assume someone with more patience than me and proper instructions could restring it.

AL PUGLIESE

I would be interested in Proton...Please send me your e-mail address....AL

Bob

Glad I found this site today. I also have a Proton 320, and my 80 year old Mom has been using it for years. It now has a strange and loud noise coming from the speaker - even when it is off! The noise is diminished when it is on, but still there. The radio still plays, though now distorted. Any ideas? I would love to fix it. ok to reply to bobfav@cox.net if you pleae. Thanks

Ed S.

try disassembling and blowing out the power buttons with compressed air.... also try a shot of contact cleaner (De-Oxit). Otherwise, they are still being sold on ebay; a newer replacement may be the easiest fix.

Paul

Mom has a Proton 320 back from the day that she broke the tuning mechanism on. This may be fixable but without a service manual/diagram/instructions we have been unable to get her back online. Seems like a shame to have to buy a new one just for this but can't seem to figure out the tuning mechanism assembly and string winding. An ebay seller kindly gave me info that there are the four pullies that the thread goes through but there is also a wheel-like object on the bottom (where the thread originates from the variable capacitor?) and also the tuning pointer fell off from the track...

JOHN HUNT

Hi Ed - I live in the UK and still have a 320 that I have owned for over 25 years - still going strong ( touch wood ).
My only problem is that on our UK electrics - via a 220/240 to 110 volt transformer, the cclock is haywire and loses like 45 mins in 4 hours or so.
This is not a major problem as I still love the sound and reception, but wondered if you might have any suggestions as to how the clock issue can be rectified.
Thanks/regards/John

Ed S

John, it's not due to your mains voltage, it's the frequency... You have 50 Hz. The 320 was designed to run on 60Hz, the US standard. The only workaround is instead of a transformer, a power amp or AC regenerator that puts out 120 volts at 60 Hz. PS Audio makes them, but are very expensive. Another reason might be spikes on the mains. Try a small ceramic .01ufd bypass capacitor to ground (earth) to shunt the spikes before they get in the radio...and last, make sure the radio is not on the same circuit as a light dimmer, which can generate spikes that speed up the clock.

JOHN HUNT

Hi Ed
Thanks for the feedback - I guessed that the problem would lie with the 50hz/60hz issue.
I think that I'll just stick with what I've got - I use the unit as my "kitchen" radio and therefore the alarm function doesn't really concern me.
Also - with the UK going totally digital - I'm disinclined to expend too much time and energy on the project.
A shame really because it is a lovely unit in prime condition with great sound - I also have a Carver 200w/channel receiver which is going to become redundant come the changeover.
Ah well - sic transit gloria whatshername...!
Many tks again for the reply.
all the best/John

Kim Daifotis

Ed,
I've used my Proton 320 every day since 1987. In my wildest dreams I never thought that this would last or, even more importantly, still sound better than most clock radios on the market 25 years later. I've taken incredibly good care of it and it looks brand new. Recently, however, it doesn't bring in the radio stations very clearly. Even when tuning the dial with the smallest increments it just doesn't bring in the stations to their full strength. Once in a while it comes in with a phenomenal signal as if it was brand new, but usually my signals are weak. This is the case for all stations, local as well as one from a far. Any ideas?
Thanks,
Kim

Ed

Kim, has the radio been dropped lately? That could cause a crack in the internal circuit boards, or break a solder connection. Otherwise I'm thinking through sheer age a capacitor has dried up... Probably not the one in the power supply, that would cause hum, but one that connects radio stages. If the volume has dropped, there is a power transistor that could be dying... Even transistors don't last forever. There are just so many causes, so maybe it's time to retire your old Proton... It's done it's job well all these years, but it may be time to put it to rest. Or buy another off eBay!

Kim Daifotis

Ed,
Thanks for the response. I was checking the other link (http://herculodge.typepad.com/herculodge/2009/08/good-luck-finding-a-clock-radio-that-beats-the-proton-320-you-wont/comments/page/3/#comments) of your review by mistake, and didn't realize you had already responded. My Proton has never been dropped. If I purchased one on eBay, I probably would use it for parts to repair the one that I own given that mine is in mint condition. Do you know who I can take/ship it to for a repair estimate? I live in the San Francisco Bay area. Fantastic blog by the way.
Thanks,
Kim

Ed

Kim,
Look for a Sony Service Center in San Francisco. There are several. They could probably repair the Proton. Get an estimate, but be prepared to be told it will cost at least $100 to repair-- service costs are very high these days! Again, you may do better to buy another 320 in great condition on eBay. Anyway, good luck!

Anne

Dear Ed:

I am delighted to have found your site since my Proton 320 has been an intimate part of my life for almost 30 years. It has worked perfectly - tuning, alarm - the sound is beautiful. However, I was devastated when my clock, alarm, and date setting function suddenly went beserk! When I move from the "Lock" position to change any of the three settings, the digits move at warp speed and I am unable to stop or move them back or ahead. Once I return to the "Lock" position, the clock works normally, but I am unable to set anything correctly. Please help! Can it be repaired and if so, where should I take it? I live in the metro NYC area.
Thanks so much for sharing your expertise.

Anne

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Advertisements






  • Advertisements
My Photo

Advertisements






  • Advertisements

Advertisements






  • Advertisements

Advertisements






  • Advertisements

August 2014

Sun Mon Tue Wed Thu Fri Sat
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            
Blog powered by Typepad

Pages

Companion Website: Breakthrough Writer

My Photo

Become a Fan