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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

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

Thanks for posting back and letting everyone know how you solved the issue. K+  :3- :3-
How were you able to tell that the back bulb was out? Did you use a digital camera?

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
"CAUTION  5 V LED USED" :72- :30- :79-

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
 



 

5VDC led version

Thanks Jim.  :3-
Wouldn't they have also had to change the receiving optics to be sensitive to IR instead of visible light?

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....

Do you know the part # for the i/r optic recievers?

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