(800) 853-2651
SHOP NOW

Diode identification???

T

TimWafer

Member
Ive got a circuit board #13211 on a Genie Manlift . There is a diode that appears burnt and it is in the telescoping feature of the lift. If I could, I would just like to replace the diode instead of the whole board but how do I identify it. Its about 3/8" long, 3/32" diameter and has 4 colored stripes on it as far as i can tell. They look to be red, black, blue (A SPACE AND THEN) gold.
Anyone out there a electronics genius and can help me.
 
When I was an instructor in the AF many years ago we used to use the term "Bad boys rape our young girls but violet gives willingly". Put a number for each color and you will be able to read the code.
 
As others have said, that's a resistor.

Diodes are usually black with a silver or white band on one end indication the anode and
have the designation screen-printed on the body, ie "1N1004" or something along those lines.
 
(quoted from post at 09:41:19 10/05/17) As others have said, that's a resistor.

Diodes are usually black with a silver or white band on one end indication the anode and
have the designation screen-printed on the body, ie "1N1004" or something along those lines.
Click to expand...
and-cathode
 
OK, I'm sure you're all right, its a resistor not a diode. I "kinda" knew that but wrote diode. I know just enough to be dangerous.

So I am looking for a 20Mohm resistor? (isnt black 0 not 1?).

What else do I need to know? Wattage?? type?
 
Might want to check it before replacing it.

Not uncommon for resistors to discolor with heat and still work.

If it is obviously burned, replace it, but being you can still read the colors, I suspect that it is still good.
 
we used Black instead of Bad. That way we did not get confused with the 2 Bs. Probably politically incorrect today!
 
Wattage is important, but you can pretty much match physical size and be close enough for
wattage.

The exception to that would be wire-wound resistors, but you'd have said so if it were wire-
wound.
 
(quoted from post at 10:08:04 10/05/17) Might want to check it before replacing it.

Not uncommon for resistors to discolor with heat and still work.

If it is obviously burned, replace it, but being you can still read the colors, I suspect that it is still good.
Click to expand...

Yeah, I can't imagine how you could overload a 20 Meg resistor and cause it to burn open.
 
(quoted from post at 09:36:22 10/05/17) When I was an instructor in the AF many years ago we used to use the term "Bad boys rape our young girls but violet gives willingly". Put a number for each color and you will be able to read the code.
Click to expand...
hange 'willingly' to 'with' and add gold & silver, then you have the % tolerance in the rhyme. gold=5%, silver=10%. A 'better' Violet cost more! :)
 
I think we can safely say that it's either NOT a 20 megohm resistor or it's NOT blown. Assuming it's a 1/4 watt resistor, it would take over two thousand volts to blow it.

Is it possible the third band is not blue but actually silver? That would make it a 0.20 ohm resistor. A quarter watt 0.2 ohm resistor could handle about an amp before blowing.

Note that when part blows, it's quite likely there's another bad part on the board or some other problem, such as a shorted wiring harness.
 
You must log in or register to reply here.

Similar threads

A
plow color help,
Replies
7
Views
1K
Anonymous-0
A
A
Little Genius 3-16 on steel,
Replies
1
Views
514
Anonymous-0
A
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top