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Old 10-08-2018, 11:41 AM   #1
Glen e
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What is this schematic symbol?

These are lights that indicate various things on the dash. (Not camaro) What exactly are these, according to schematic, LEDs? Or small bulbs? .....I'm interested in what this symbol indicates as a component on the schematic.



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Old 10-08-2018, 12:00 PM   #2
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It's a Diode, but with the z-shaped arrow going out of the circle, they become LED's.
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Old 10-08-2018, 12:04 PM   #3
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Quote:
Originally Posted by Ryephile View Post
It's a Diode, but with the z-shaped arrow going out of the circle, they become LED's.
Thank you , yes a bit more searching shows it to be a "photodiode LED", I assume it's the imprinted on the circuitboard? What would be the easiest nondestructive reversible way to kill the light?

Backstory. A friend of mine has a motorcycle and he likes to run with the highbeam light on , but he doesn't like to see the blue light on the dash during the day. ( he does not want to use tape on the outside like a hillbilly… LOL ) He is well aware of that it would not show at night. What's the easiest way to kill it but if he sells the bike he could reverse it?

Maybe tape on the inside? (Subtle hillbilly move)
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Old 10-08-2018, 12:12 PM   #4
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"Photodiode Light Emitting Diode" is a bit redundant. It's most commonly referred to as just an LED. LED's are discrete components in terms of PCB population, like a resistor or capacitor. They can of course be in a variety of package shapes that are selected based on application.

If your friend wants to open up his cluster, he can de-populate the offending LED, however without seeing the balance of the schematic, it may be in series with the actual lighting circuit versus in parallel. The most practical layman solution would be a few coats of permanent Sharpie or black paint pen on top of the LED.
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Old 10-08-2018, 12:13 PM   #5
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Quote:
Originally Posted by Ryephile View Post
"Photodiode Light Emitting Diode" is a bit redundant. It's most commonly referred to as just an LED. LED's are discrete components in terms of PCB population, like a resistor or capacitor. They can of course be in a variety of package shapes that are selected based on application.

If your friend wants to open up his cluster, he can de-populate the offending LED, however without seeing the balance of the schematic, it may be in series with the actual lighting circuit versus in parallel. The most practical layman solution would be a few coats of permanent Sharpie or black paint pen on top of the LED.
Exactly......thanks....
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Old 10-08-2018, 12:18 PM   #6
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Quote:
Originally Posted by Glen e View Post
Thank you , yes a bit more searching shows it to be a "photodiode LED", I assume it's the imprinted on the circuitboard? What would be the easiest nondestructive reversible way to kill the light?

Backstory. A friend of mine has a motorcycle and he likes to run with the highbeam light on , but he doesn't like to see the blue light on the dash during the day. ( he does not want to use tape on the outside like a hillbilly… LOL ) He is well aware of that it would not show at night. What's the easiest way to kill it but if he sells the bike he could reverse it?

Maybe tape on the inside? (Subtle hillbilly move)
A photodiode requires light. That is usally two arrows pointing back at the diode symbol. LED is usally written with two arrows pointing away from the diode symbol. Im not following what they are expressing in the picture you posted with the bent arrow. It maybe be a symbol not used in my world.
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Old 10-11-2018, 12:11 PM   #7
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Black paint, nail polish, gasket maker... not sure which will last the longest without chipping off.
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