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Author Topic: Testing for bad optical transmitter  (Read 4267 times)
Bally_Rookie
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« on: October 21, 2009, 06:42:51 PM »

I have a bad reel reader on a Bally E-1209 and I believe its a bad optical transmitter since all bulbs are working. How do you go about testing for the bad one(s)? Thank you
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Bally_Rookie
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« Reply #1 on: October 22, 2009, 12:14:35 AM »

I took the reel reader apart and held a meter on each contact of the optical transmitter, then shined a led light into each one and recieved voltage on every one.  I reinstalled the card without the reels this time, coin it up and saw the very back bulb was out. I didn't notice it with the reels installed. Thanks anyway
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StatFreak
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« Reply #2 on: October 22, 2009, 12:19:05 AM »

Thanks for posting back and letting everyone know how you solved the issue. K+  applause applause
How were you able to tell that the back bulb was out? Did you use a digital camera?
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Bally_Rookie
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« Reply #3 on: October 22, 2009, 12:31:15 AM »

No, i didn't need to use a camera, they are 50v bulbs not infa red.
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StatFreak
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« Reply #4 on: October 22, 2009, 01:12:29 AM »

No, i didn't need to use a camera, they are 50v bulbs not infa red.

Thanks. I've never actually seen one of the E-series 50v reel readers.
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« Reply #5 on: October 22, 2009, 08:32:03 PM »

No, i didn't need to use a camera, they are 50v bulbs not infa red.

Thanks. I've never actually seen one of the E-series 50v reel readers.

Looks exactly the same, Only it doesn't have that big red sticker at reads
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« Last Edit: October 22, 2009, 08:37:33 PM by Neonkiss » Logged

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« Reply #6 on: October 23, 2009, 12:13:38 AM »

StatFreak :  Here are some pictures: the voltage applied is 50vac  dropped down to 5vac ,simple solder in type incandescent  bulb, shines lite onto black disc with binary codes. Codes are actually punched holes in the metal disc, when the lite hits the corresponding optic receiver thru the hole in the disc it transfers that data to the cpu to let it know where the reel stopped.

Second picture:  same theory only uses 5vdc led. infra red beam instead of in candecent bulb.      Jim
 



 


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« Reply #7 on: October 23, 2009, 12:16:06 AM »

5VDC led version


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« Reply #8 on: October 24, 2009, 10:40:15 PM »

Thanks Jim.  applause
Wouldn't they have also had to change the receiving optics to be sensitive to IR instead of visible light?
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« Reply #9 on: October 25, 2009, 12:54:01 AM »

FYI the optics for the incandescent lamps are no longer available in that style.
I spoke with a tech from the manufacture, He now recommends using the I/R optics as a replacement.
The light spectrum of the I/R optics is so wide that they will also pick up visible light.
I have used these on my 50V readers and they work great....
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gteatr6
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« Reply #10 on: May 12, 2010, 03:08:53 PM »

Do you know the part # for the i/r optic recievers?
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« Reply #11 on: May 12, 2010, 03:54:46 PM »

PM sent
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