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Kodak Pageant OPt/Mag - No Optical Sound
https://8mmforumworldwide.com/viewtopic.php?f=13&t=1254		 Page 2 of 3
Author:  Dan Lail [ Fri Sep 06, 2013 11:41 pm ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
Erik, it is solid state. I checked the voltage going to the exiter and there was none.
Author:  Erik Schoolcraft [ Sun Sep 08, 2013 11:03 pm ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
Hey Dan, if it is solid state then do you have a meter that can check a transister? Most likely the current sent to the lamp is coming off a transister meant for converting AC current to low-voltage DC current. Like a rectifier circuit.
Author:  Mike Sands [ Mon Sep 09, 2013 10:39 am ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
Have you checked the resistors with a multimeter? If they check the correct value then on to the capacitors. I have ran into something similar while restoring a tube tester.

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Author:  Erik Schoolcraft [ Mon Sep 09, 2013 11:05 pm ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
Mike is going a bit too far into the circuit. A solid state amplifier directs current directly from the power transister to the speaker. If there is a break in the amplifying transister then that is where the problem may lie. What Mike is talking about is power provided to the amplifying transister. Resisters especially if old tend to hold back more and more resistance over time since they are carbon based. I'd check the sine waves produced by the transister first then look for a broken or what we call 'slaved' resister. Man I sound like a geek.
Author:  Mike Sands [ Tue Nov 19, 2013 5:56 pm ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
Dan, Did you ever get the exciter power supply fixed?
Author:  Erik Schoolcraft [ Wed Nov 20, 2013 12:17 am ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
I had to do a fix on my NAVY issued Viewlux. The only problem was that the exciter lamp wasn't turning on. The projector has a wonderfully working tube amp but the lamp wasn't lighting up. Out of desperation I shined a laser pointer through the cat-eye and the sound came on brilliantly. Was probably a broken wire to the exciter lamp but the wires were so enclosed to the frame of the projector that I couldn't replace them. Stated before that I ended up replacing the exciter lamp with a high-brightness LED lamp blowing directly into the cat-eye and now the projector works wonders even though it shows a small image and uses a heck of a lot of power. The exciter lamp was supposed to be powered by a run-off of one of the 6L6 power tubes but wasn't recieving power. Now the LED is run off of a 1.5v battery holder with a small switch.
Author:  Mike O'Regan [ Thu Nov 21, 2013 3:21 pm ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
Ah, you won't need the exciter lamp, Dan. Everybody knows the vast majority of 16mm prints were released with Magnetic sound.
:|
Author:  Mike Sands [ Thu Nov 21, 2013 4:57 pm ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
[set5_b/set5_b/rofl.gif]
Author:  Jeff Missinne [ Thu Nov 21, 2013 11:55 pm ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
[set5_b/set5_b/beatdeadhorse5.gif]
Author:  Erik Schoolcraft [ Fri Nov 22, 2013 12:22 am ]
Post subject:  Re: Kodak Pageant OPt/Mag - No Optical Sound
And again Mike provides an idiots view on a subject he has no idea of. Nice that Facebook lurkers can post anywhere. Wait for it...
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