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Old 05-16-2011, 09:39 AM   #1
megabyte
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Default Burned controller -- Can you ID this IC OR Resistor?

I have an EZGO PDS with a Curtis 1206MX controller. Due to a wiring mistake two components in the controller burned up. I am confident in my ability to repair the controller and save the $$ but I need to identify resistor and IC that burned up. As you can see from the attached pictures the damage from the burn-up prevents me from reading color bands and IC markings.

Can anybody share an up close picture of their 1206MX board so that I can read the resistor color bands and Q3 IC markings? OR Can anybody provide that information to me directly? Thanks!

Close ups of the burned parts that I need Identified.
http://www.mymegabyte.com/1206mxclose1.jpg
http://www.mymegabyte.com/1206mxclose2.jpg

Blurry picture of the whole board with burned parts circled.
http://www.mymegabyte.com/1206mx2.jpg

(I external linked the pictures so I could post high-res)

-- Edit --
Currently, the resistor measures 1.8k but obviously damage could have changed that.
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Old 05-17-2011, 12:46 PM   #2
megabyte
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

This is a follow-up and bump. :)

With a lot of inspection and looking around I believe I am on the track to finding the part number for the burned IC but I still really need a picture or confirmation from someone.

I believe the IC (Q3) is an International Rectifier brand N MOSFET. But I have not been able to get any further then that.

I know taking one of these apart can be a pain but does anybody have one lying around that they have already taken apart that they can check for me?
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Old 05-17-2011, 01:52 PM   #3
dougmcp
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

I would bet if you quietly asked our sponsor that rebuilds these you could get your answers, maybe even the parts. Here's the link: http://www.fsip.biz/
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Old 08-22-2011, 11:14 PM   #4
jordan_ciaramitaro
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

Q3 = IRLU024N
R66 = 33ohm 1watt

Future electronics has the mosfet for $0.48
http://www.futureelectronics.com/en/...:True,Nea:True

These controllers have clad circuit boards meaning they have solder traces sandwiched between the top and bottom layers. This can make these really hard to repair without a schematic. I have a 1206sx that I need the some resistor values for, hopefully someone will help me as I have helped you. I also have these parts if you want me to send them to you!

What caused the failure? You likely have some related components failed as well. Check the components I circled in the photo. Once again a schematic would really help track what caused these components to fail. It would only take a few more minutes to go ahead and check all of the transistors and diodes on both boards(highly recommended).
Attached Images
File Type: jpg 1206mxclose1 - Copy.jpg (278.1 KB, 16 views)
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Old 02-10-2015, 02:18 PM   #5
Dewy002
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

Did any one ever figure out what caused the failure, I have a controller with the same issue and can't track down what's causing it.
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Old 02-11-2015, 11:16 AM   #6
megabyte
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

Quote:
Originally Posted by Dewy002 View Post
Did any one ever figure out what caused the failure, I have a controller with the same issue and can't track down what's causing it.
My issue was caused by accidentally swapping positive and negative after cleaning the battery terminals.
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Old 03-31-2015, 01:58 PM   #7
clasel
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

Hello MEGABYTE, I am looking for a diagram of a FSIP 1206-MX driver and found your posting, I want to know if your I can guide you about my failure, is the same as yours, they changed the connection and the 2 components are burned, Q3 = IRLU024N
R66 = 33ohm 1watt, stay like your photo
the question is, was he corrected the fault changing these 2 components? or more components were damaged ?, I thank you in advance for your reply, greetings
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Old 03-31-2015, 04:49 PM   #8
megabyte
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

Quote:
Originally Posted by clasel View Post
Hello MEGABYTE, I am looking for a diagram of a FSIP 1206-MX driver and found your posting, I want to know if your I can guide you about my failure, is the same as yours, they changed the connection and the 2 components are burned, Q3 = IRLU024N
R66 = 33ohm 1watt, stay like your photo
the question is, was he corrected the fault changing these 2 components? or more components were damaged ?, I thank you in advance for your reply, greetings
Those two were the only things that had to be replaced on my unit.
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Old 03-31-2015, 09:22 PM   #9
clasel
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

I will proceed to change them, thank you very much for your quick reply, Greetings
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Old 04-21-2017, 08:54 PM   #10
alton98
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Default Re: Burned controller -- Can you ID this IC OR Resistor?

Here are some pictures off my controller board.
Attached Images
File Type: jpg IMG_0133[1012].jpg (242.1 KB, 0 views)
File Type: jpg IMG_0134[1010].jpg (240.1 KB, 0 views)
File Type: jpg IMG_0135[1008].jpg (226.8 KB, 0 views)
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