Philips AF 829

lets make things better
scutigere
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Re: Philips AF 829

Post by scutigere » 10 May 2016 17:08

Hi everybody!
I'm new here. I just bought a new old stock AF829, in perfect shape, in its original box... but she's got a problem: when I push the "play/cut" button the automatic start works, but when the tone arm put down on the record, the turntable just stops. And when I push again the "play/cut" button, or I move the tonearm at the end of the record, the turntable restart and the tonearm come back on his stand. And the turntable stops normally. Have you got any idea? Do you think it could be caused de by those red lights everybody talk about???
Sorry for my bad english...

Xyrios974
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Re: Philips AF 829

Post by Xyrios974 » 11 May 2016 05:50

Hi there
Regarding the old posts about philips turntables, it could possibly be the leds inside the machine. They allow it to start and stop, if they are too old, they need to be replaced.
you can find those leds here
https://mail.google.com/_/scs/mail-stat ... rh15EAonVQ

scutigere
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Re: Philips AF 829

Post by scutigere » 11 May 2016 10:12

Hi Xyrios974,

Yesterday I sent you a private message (in french)... Did you read it?
Did changing the leds solve the problem on your turntable?
Your link doesn't work!
Please can you tell me the led type/model/reference...? If I saw correctlly there is only two leds to change?
Thank you!

scutigere
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Re: Philips AF 829

Post by scutigere » 23 May 2016 00:58

Yesterday I had time so I inspect the two red lights inside the turntable, especially the one which command the engine operation.
When I put a flashlight on the photocell, the motor starts! [-o<
And if I remove the flashlight, il stops... so the problem is here!
Thank ou everybody for the help, I hope that changing the led will solve the problem...
Do you know what type of leds I have to find? Particular specs? It must be red or whatever the color?

Xyrios974
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Re: Philips AF 829

Post by Xyrios974 » 23 May 2016 05:20

i'd go whith a red one... but i'm not an electronician...

Japi Roelofs
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Re: Philips AF 829

Post by Japi Roelofs » 23 May 2016 11:31

An ordinary red LED will work just fine. I have not tried any other colors, but the flashlight suggests that white light would work too, no?

scutigere
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Re: Philips AF 829

Post by scutigere » 26 May 2016 00:18

Hi everybody!
So today I went to the electronics store to buy a few LEDs, red, white, different brightnesses ...
I replaced one and... it works ! [-o<
I put a red one, standard brightness.
The old one were very deficient compared to the new one!
This is the only place I could fine help so thanks everybody.
But now I've got a little new problem: the turntable turns regulary, but a bit too fast. :? To have the correct speed I need to turn the pitch almost completely left, on the first led of the readout. It's the same on both 33rpm and 45rpm. It's not just the belt because I tried with the belt of my af729 and I have the same result. Both pitch controls respond well gradually and the speed does not vary unexpectedly, so I think the pitch controls are ok. Do you know if there is a solution to this?
[EDIT]: Ok, I found something interesting in the Service Manual, I will try tonight...

earrangoiz
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Re: Philips AF 829

Post by earrangoiz » 22 Aug 2016 01:32

Hello, I think I have the same problem with my AF 829. But I cant find the Leds in the turntable.
Can somebody help with the position of the leds, where are the leds we should replace?

Thanks

scutigere
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Re: Philips AF 829

Post by scutigere » 22 Aug 2016 18:53

You will see the two red leds if you turn on the turntable. They will light up.
Mine has always the same problem: The speed is not regular and I can't fix it. Sometimes it slow down, sometimes it speed up...

earrangoiz
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Re: Philips AF 829

Post by earrangoiz » 22 Aug 2016 21:28

Hello, thanks Scutigere, I found the leds, but I solve the problem reseting the cables of the automatic mechanism, I disconnected both and connected them again. My tonearm does not dance anymore!!

Xyrios974
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Re: Philips AF 829

Post by Xyrios974 » 22 Aug 2016 21:49

could you mp me how to find those cables please?
thank you

scutigere
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Re: Philips AF 829

Post by scutigere » 23 Aug 2016 09:12

errangoiz, wich "cables of the automatic mechanism" do you talk about?

earrangoiz
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Re: Philips AF 829

Post by earrangoiz » 26 Aug 2016 01:52

Dear all.

When you open the turntable, around the middle, very near to the gear assembly that joins the automatic gear (big) with the motor gear (small) there are two cables. If you disconnect them and connect them again, the automatic resets. But I actually leave them disconnected, so I dont have trouble with the automatic play anymore. So I put the tone arm manually, I actually like it better manually. I push the 33rpm bottom and when the disc starts to spin I manually reach the tonearm to the disc.

Just for the record, the best sounding needle I heard in the table is the shure97xe, it gives very good detail in the bass and warm soundstage. I use a Musical Fidelity V-LPS Phono Stage as Pre.

What about you guys?

All best

Tjerk23
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Re: Philips AF 829

Post by Tjerk23 » 09 Sep 2016 21:30

Hi All,

I seem to have the same Led problem with my just acquired 829mkII with GP422 element. Very curious to hear the sound of this element but unfortunately it's not operating well.

@earrangoiz: Interesting thought to disconnect the automatics. Which cables do you mean exactly? Can you show maybe in a picture?

How hard is it to replace the leds? They seem to be a bit hidden behind other stuff. Does replacing mean soldering?

Thanks for your answers.

Tjerk

scutigere
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Re: Philips AF 829

Post by scutigere » 06 Nov 2016 23:03

Tjerk23, maybe you have sold the leds problem but they are very easy to replace. They are simply clipsed in a kind of small black plastic hook maintened by a screw. So you can remove it very easily. In a second time you de-clipse the led from the black plastic hook, you desolder the old led, you solder the new one, put it in the hook, and screw the hook.