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Author Topic: R3 Problem JDM-040  (Read 739 times)

Offline fede19802022

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R3 Problem JDM-040
« on: November 28, 2023, 03:51:05 AM »
Hi everyone
I have a problem with the R3 key does not work as I do to recover the functionality
Thank you

https://imgur.com/FYiorpz


https://imgur.com/a/FH5lQ9q
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Offline RDC

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Re: R3 Problem JDM-040
« Reply #1 on: November 28, 2023, 08:37:12 AM »
First check continuity between the spot in the red circle, and the orange dot to the right of it. Press the button and make sure the value goes close to 0ohms when pressed. Just becasue those buttons 'click' when pressed does not mean they are good.

If the button tests good, then solder a jumper wire and connect the 2 Orange spots. Also make sure the solder joint in the Red circle is good making connection to that trace there.

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Offline fede19802022

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Re: R3 Problem JDM-040
« Reply #2 on: November 28, 2023, 11:09:45 AM »
Hi

There is continuity between the red circle and the orange dot on the right while I press the button I made the jumper between the two orange dots (as you can see from the photo) but it still doesn't work

thank you very much for helping



https://imgur.com/a/EdEGZPs
« Last Edit: November 28, 2023, 11:10:27 AM by fede19802022 »
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Offline RDC

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Re: R3 Problem JDM-040
« Reply #3 on: November 28, 2023, 09:02:45 PM »
Follow the trace from the red circled spot and make sure it's not damaged anywhere.
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Offline fede19802022

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Re: R3 Problem JDM-040
« Reply #4 on: November 28, 2023, 10:31:11 PM »
HI

I have attached the completed photo of the motherboard, can you help me find the trace

Thank You



https://imgur.com/iQ6jOi8
« Last Edit: November 28, 2023, 10:35:16 PM by fede19802022 »
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Offline RDC

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Re: R3 Problem JDM-040
« Reply #5 on: November 28, 2023, 11:04:14 PM »
Pic isn't that great, trace looks open here though.

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Offline fede19802022

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Re: R3 Problem JDM-040
« Reply #6 on: November 29, 2023, 12:10:26 AM »
yes the point is right how can I restore the line

Many many Thanks
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Offline fede19802022

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Re: R3 Problem JDM-040
« Reply #7 on: December 08, 2023, 04:46:24 AM »
Resolved.

Thanks
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