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Topic: GS1200 Take Up Spool Problem
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Paul Adsett
Film God
Posts: 5003
From: USA
Registered: Jun 2003
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posted August 04, 2008 02:23 PM
I had exactly the same problem Simon, and had to cahnge out the relay as Ugo has stated. My take up was running intermittently, just like yours, and I would have to restart the projector sometimes to get it to 'Kick in'. Until the day I was projecting a 1200ft reel and noticed 600ft on the floor half way thru the film! Changing the relay is not easy. I mangaged to do it - the worst part is getting the old relay out, it has about 11 pins on it and the relay has to be gently pried up from the board as you melt each of the solder joints - a real bear, I almost ruined the printed circuit board doing this. Once out though, soldering the new one in is a peace of cake.
-------------------- The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection, Elmo GS1200 f1.0 2-blade Eumig S938 Stereo f1.0 Ektar Panasonic PT-AE4000U digital pj
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Paul Adsett
Film God
Posts: 5003
From: USA
Registered: Jun 2003
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posted August 04, 2008 02:25 PM
I had exactly the same problem Simon, and had to change out the relay as Ugo has stated. My take up was running intermittently, just like yours, and I would have to restart the projector sometimes to get it to 'Kick in'. Until the day I was projecting a 1200ft reel and noticed 600ft on the floor half way thru the film! Changing the relay is not easy. I mangaged to do it - the worst part is getting the old relay out, it has about 11 pins on it and the relay has to be gently pried up from the board as you melt each of the solder joints - a real bear, I almost ruined the printed circuit board doing this. Once out though, soldering the new one in is a piece of cake.
-------------------- The best of all worlds- 8mm, super 8mm, 9.5mm, and HD Digital Projection, Elmo GS1200 f1.0 2-blade Eumig S938 Stereo f1.0 Ektar Panasonic PT-AE4000U digital pj
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Martin Jones
Phenomenal Film Handler
Posts: 1269
From: Thetford , Norfolk,England
Registered: May 2008
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posted August 05, 2008 06:09 AM
Just a word of caution based on many years (I won't admit to how many!) as a Tv Engineer. De-solder pumps are fine on medium to heavy solder joints, but are not recommened on faily light pc boards, as they tend to lift the circuit copper from the board (did you find this, Kev?). On printed circuits always use "de-solder braid" (Maplin). This is like a compacted screening braid from, say, TV aerial cable, impregnated with a cleaning flux. It's placed on the joint, which is heated through it. The solder melts and the braid acts as a wick and soaks it up (like magic) leaving the joint free of solder. The size you use depends on the density of the printed wiring so that you dont clean joints you dont require to clean.
Martin
-------------------- Retired TV Service Engineer Ongoing interest in Telecine....
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