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What type of diode........
What type of diode........
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Old 29th January 2011, 12:15 PM   #11
Nails is offline Nails  Australia
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Well done guys...spot on......

Opened up the damage one to see....... the mini LED on one side and the light sensor on the opposite side...a visit to the local component store is the order of the day.....and I,ll replace them both and see how it goes..
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Old 30th January 2011, 01:48 AM   #12
agdr is offline agdr  United States
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What type of diode........
Here is what looks like the datasheet for the norp12 photocell side of it, as labeled by LDR1A on the print you posted in post #6:

Download | Datasheet Archive

Sounds like Crown may have made a DIY optocoupler by bonding a LED to that photocell.


Last edited by agdr; 30th January 2011 at 01:54 AM.
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Old 3rd February 2011, 07:22 AM   #13
DigitalJunkie is offline DigitalJunkie  United States
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If you're lucky,this one might work:
SALE! - Audio Opto Coupler-The Electronic Goldmine
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