RE: tempest help

At 11:12 PM 12/12/97 -0500, you wrote:
>At 8:34 12/10/97, Ozdemir, Steve wrote:
>>G'day folks,
>>
>>Along similar lines, I have some bad Tempest spinners. I'm assuming
>>that the LED that shines through the wheel has gone bad. Does anyone
>>know of a replacement part (or better yet a number that I could bring to
>>my electronic's parts store)? Thanks!
>
>I'll swap a working one for your bad one + $25. However ANY (and I do mean
>ANY) Infra-red transmitter/detector pair will work. There are 2 pairs and
>you can tell which is which by the markings on the underside of the PCB.
>It is virtually IMPOSSIBLE (although I have done it once) to remove the
>LEDs from the curved black enclosures but as long as your game is inside a
>cabinet (i.e. dark and with constant interior temp), you don't need the
>casing. Replace 1 pair (in a casing) and test. If it doesn't work,
>replace the other (actually you can test them but it really isn't worth the
>time). B.G. Micro sells a pair that will work for ~ 50 cents.

Now I'm curious. Is it the led or the phototransistor that usually fails?

--
Christopher V. Moore -- Principal Engineer
Heartlab, Inc. - 101 Airport Rd - Westerly, RI 02891
Phone: (401) 596-0592 - Fax: (401) 596-8562 - Email: cmoore@heartlab.com