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Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
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6th Feb 2016, 5:35 am | #1 |
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Philips UFO GF22 303. Motor not spinning.
Hi everyone. First post here.
Just found a Red UFO from Philips, model GF 22 - 303 When I turn the power on, I can hear it is on. The sound works great but the record does not spin. Nothing happens with the motor when on. I am in Canada, there is a voltage selection switch with 110, 127, 210 and 220V tried both 110 and 127 and batteries. All the same, everything works but the spinning action. Has anyone worked on these? I do not know where to start and I really want to have this little beauty work like back then Many thanks! Julie. |
6th Feb 2016, 10:33 am | #2 |
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Re: Philips UFO GF22 303. Motor not spinning.
I don't know the model, Julie, but many record players were made where the pickup arm had to be lifted from its rest & pulled gently to the right to turn on the motor, which was activated by a seperate switch.
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6th Feb 2016, 11:17 am | #3 |
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Re: Philips UFO GF22 303. Motor not spinning.
That wouldn't surprise me. It's a strange looking thing.
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6th Feb 2016, 7:27 pm | #4 |
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Re: Philips UFO GF22 303. Motor not spinning.
If moving the arm does not work, then the motor may have seized. You'd need to unclip and remove the platter, and try manually turning the motor spindle and see if that frees it.
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7th Feb 2016, 1:09 am | #5 |
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Re: Philips UFO GF22 303. Motor not spinning.
Is this unit just mains operated? I had a small portable Philips machine a while back which was mains and battery and had a low 9V motor in it. This motor was the first I had ever seen with a centrifugal force speed governor. However the bushes in the motor were just copper leaves that pressed against the contacts on the rotor. these had totally worn away with age. rendering the motor useless. at the time I worked in a company that made sheet steel so I manufactured some new contact leaves out this sheet steel. it got the motor turning again but it had little speed fluctuations that I couldn't not cure.
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7th Feb 2016, 6:57 pm | #6 |
Hexode
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Re: Philips UFO GF22 303. Motor not spinning.
A common problem with Philips is the motor speed regulator transistor-an AC187.
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8th Feb 2016, 2:48 pm | #7 |
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Re: Philips UFO GF22 303. Motor not spinning.
Hi all
- First I will turn on my mail notifications to on Sorry about the time it took! - Yes you do have to pull the tonearm to the right for it to turn on. and far left to turn it off. It does turn on, and if I spin the platter myself, the sound comes up. - I have removed the platter and I did spin the motor spindle, it is not seized and turns ok, just not on its own . - There are 4 voltages available 110, 127, 220 or 240 v adjustable voltage knob, 50/60 hz.and it is also battery operated I am in Canada (should I use 110 or 127 on the selector to be optimal when our ac is at 120V? My guess is 110 and 127 are for 50hz and 60 hz so should I select 127v ? - I have managed to find a video of a Philips portable TT. The mechanics he shows on how it functions is similar to mine. Only mine has the voltage selectors and all. https://www.youtube.com/watch?v=dOs7AcHsnzw Maybe it is what you are talking about Kevin? - I will take a picture of the small schematics plan glued on the tt tonight and try to get the infos on the motor speed regulator to see if it is a transistor-an AC187. - Read of a wire fuse on the transformer that could have shorted on another thread. I have no idea how to check that I will research this as well. Many thanks you guys I need all the help I can get as I really want this cute little thing to work again Julie |
8th Feb 2016, 11:49 pm | #8 | |
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Re: Philips UFO GF22 303. Motor not spinning.
Quote:
I found a page with many specs on this TT. http://www.radiomuseum.org/r/philips...?language_id=2 |
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9th Feb 2016, 10:01 am | #9 |
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Re: Philips UFO GF22 303. Motor not spinning.
You have to be a member of Radiomuseum in order to be able to acess all the information on any of their pages
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9th Feb 2016, 11:56 am | #10 |
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Re: Philips UFO GF22 303. Motor not spinning.
You'll find part of the service manual here:-
https://www.vintage-radio.net/forum/...ad.php?t=75893 The forum member who posted it may have the complete manual.
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9th Feb 2016, 12:04 pm | #11 |
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Re: Philips UFO GF22 303. Motor not spinning.
If the amplifier works, then you obviously have a 9V supply present.
I'd check the voltages around the motor and its controlling transistors. Picture is best I can do.
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9th Feb 2016, 12:25 pm | #12 |
Hexode
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Re: Philips UFO GF22 303. Motor not spinning.
Service manual here:
http://freeservicemanuals.info/en/se...ilips/22GF303/ The motor circuit is more or less standard for many portable Philips gramophones. Note that not all Philips service manuals show voltages at the motor,but I found another Philips that does. |
9th Feb 2016, 1:06 pm | #13 |
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Re: Philips UFO GF22 303. Motor not spinning.
I wonder why they used an AC187? If it's dead I would think any old NPN TO220 silicon job would work fine.
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9th Feb 2016, 1:42 pm | #14 |
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Re: Philips UFO GF22 303. Motor not spinning.
Presumably selected because of it's characteristics, Chris. Philips used a similar circuit as the motor speed control in their cassette recorders & players in the late 60s & early/mid 70s, though, IIRC, both transistors were germanium in the tape players.
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9th Feb 2016, 2:23 pm | #15 |
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Re: Philips UFO GF22 303. Motor not spinning.
Hi all!
Thank you all for your help! I will do my ''homework's'' as soon as I get home from work! I will start with: - Check the voltages around the motor and its controlling transistors maybe look for a faulty AC187. Anything else you guys think I should check? Have a great day everyone and thanks again for the help and tech support, I really appreciate it. This little UFO has a sentimental value and I do not want to screw this up My parents found it in the attic a few weeks ago... They got it in Germany or the Netherlands in the 70's and I remember playing Disney's little 45 s on this one when I was young. So yes, I would really like to have it functional again Thanks again |