Author Topic: 1708 - Solder pads missing (Read 1807 times)

FRichardson · « **on:** June 28, 2021, 06:32:40 PM »

Does anyone know where the jumper wire should go on the missing pads? They are circled in red on the image.

https://ibb.co/CsLMV1p

wickated · « **Reply #1 on:** June 29, 2021, 04:41:14 AM »

it should go here
https://acidmods.com/forum/index.php/topic,44862.0.html

FRichardson · « **Reply #2 on:** June 29, 2021, 06:23:09 PM »

Sorry but the link led to nowhere. Do you have another link?

wickated · « **Reply #3 on:** June 30, 2021, 04:04:33 AM »

FRichardson · « **Reply #4 on:** June 30, 2021, 07:32:31 AM »

I will give that a try. Thanks Wickated.

cfarl · « **Reply #5 on:** August 05, 2021, 08:45:45 AM »

Quote from: wickated on June 30, 2021, 04:04:33 AM

Nice work!

Do you have this connection points for missing pads of the other analogic?

Thanks!

cfarl · « **Reply #6 on:** August 05, 2021, 08:02:45 PM »

By the way, I had a controller pushing up.

I have made a jumper from LSY to TP63, and it fixed the problem. Thanks!

Then I got another controller, with a lot of missing pads, and tried to make new jumpers.

But this controller has a BIG problem.... Other than LSY missing pad, also TP63 is missing (bad work from another guy!)

So, I tried to make a jump from LSY to the hole next the missing TP63, but the controller continues pushing up.... The left and right jumper to TP164 is working.

Any ideas?

bakachelera · « **Reply #7 on:** August 08, 2021, 07:13:28 PM »

You can use the solder points directly from the main chip (the MCU) I've done this kind of work before.
Take a look at this work I made.
https://www.dropbox.com/s/hzzrzunckfnuctg/reconstruccion%20xbox%20circuito.jpeg?dl=0

cfarl · « **Reply #8 on:** August 09, 2021, 05:28:36 AM »

Quote from: bakachelera on August 08, 2021, 07:13:28 PM

You can use the solder points directly from the main chip (the MCU) I've done this kind of work before.
Take a look at this work I made.
https://www.dropbox.com/s/hzzrzunckfnuctg/reconstruccion%20xbox%20circuito.jpeg?dl=0

Nice work, bakachelera!

So, in this case I can solder LSY directly to the SOC board, as you did, right?

I did it too, but my controller is still pushing up. As there is no island, as LSX, I have to solder LSY to the other side of MCU, right?

There is a hole (the second above the T64 writing) that connects LSY to the other side of MCU.

bakachelera · « **Reply #9 on:** August 09, 2021, 04:50:22 PM »

Yeah use pin 53 of the SOC board my dude. Hope I helped a fella with this one.

cfarl · « **Reply #10 on:** August 10, 2021, 04:55:08 AM »

Quote from: bakachelera on August 09, 2021, 04:50:22 PM

Yeah use pin 53 of the SOC board my dude. Hope I helped a fella with this one.

Thanks! I will give it a try, and then I report here the result.

cfarl · « **Reply #11 on:** August 10, 2021, 06:31:20 PM »

I have made a connection from LSY to pin 53 of SOC board, as suggested.

As you can see, I also have a connection from LSX to TP64.

Right and left of this analogic is working as expected, but it still pointing to up....

Any idea???

RDC · « **Reply #12 on:** August 10, 2021, 08:07:49 PM »

Clean that mess up on the center lead of the Y-axis POT, becasue it sure looks like you have the thing shorted to ground, at a couple of places, which would cause it to act that way.

cfarl · « **Reply #13 on:** August 11, 2021, 04:40:10 PM »

Quote from: RDC on August 10, 2021, 08:07:49 PM

Clean that mess up on the center lead of the Y-axis POT, becasue it sure looks like you have the thing shorted to ground, at a couple of places, which would cause it to act that way.

You were right!

It was a great mess in that pot. I tried to remake the broken track, but it was shorted to ground.... So, I removed it.

Leaving only the connection from LSY to pin 53 of SOC it worked as expected.

Thanks!!!!

I managed to make this destroyed board comes to live again thanks to your help!

cfarl · « **Reply #14 on:** August 11, 2021, 07:28:05 PM »

Well, not all is working.... B button is not working....

Do you known how to test it? I find that it is linked to pin 15 of POC (thru R29, 100)

https://www.acidmods.com/RDC/XB1/1708/1708_SOC.txt

I read that it is linked to TP41 (thru 100ohm), but I couldn't find it.

https://acidmods.com/forum/index.php?topic=43981.0

Can you give some more advice? :help

cfarl · « **Reply #15 on:** August 11, 2021, 08:24:40 PM »

Image of the button.

It seems the left side is not in contact with his track...

RDC · « **Reply #16 on:** August 12, 2021, 05:21:08 AM »

All there is to B is the contacts, R29 then the SOC board, and the traces that connect everyhting.

Not really a great pic to try and diagnose from, but it looks like the carbon contact material (the black stuff) is missing. You'd have to use a conductive pen or rear window defogger repair kit to 'easily' try and fix that.

cfarl · « **Reply #17 on:** August 12, 2021, 05:14:54 PM »

Quote from: RDC on August 12, 2021, 05:21:08 AM

All there is to B is the contacts, R29 then the SOC board, and the traces that connect everyhting.

Not really a great pic to try and diagnose from, but it looks like the carbon contact material (the black stuff) is missing. You'd have to use a conductive pen or rear window defogger repair kit to 'easily' try and fix that.

Sorry about the picture. I think this new one is better....

What do you suggest me to do? Can I solder a thin wire to link the left side to its track?

It seems the solder at right is not connected to the carbon, because there is no resistence between it and the gray rounded track at the bottom.

RDC · « **Reply #18 on:** August 12, 2021, 05:28:18 PM »

Both sides of that look damaged. You can not solder to that black carbon coating and you will only further damage it trying. Already mentioned what you will need to try and repair that.

cfarl · « **Reply #19 on:** August 12, 2021, 05:50:00 PM »

You say this?

https://pt.aliexpress.com/item/4000401659509.html?spm=a2g0o.productlist.0.0.2823e46a0OtF99&algo_pvid=4bab8090-0a99-4778-8888-73635135adcc&algo_exp_id=4bab8090-0a99-4778-8888-73635135adcc-13&pdp_ext_f=%7B%22sku_id%22%3A%2210000001654513159%22%7D

Or this?

https://pt.aliexpress.com/item/1005002912716861.html?spm=a2g0o.productlist.0.0.2823e46a0OtF99&algo_pvid=4bab8090-0a99-4778-8888-73635135adcc&algo_exp_id=4bab8090-0a99-4778-8888-73635135adcc-0&pdp_ext_f=%7B%22sku_id%22%3A%2212000022746806234%22%7D

Ps. Sorry, this is something new to me....

And where is R29? I couldn't find it....

RDC · « **Reply #20 on:** August 12, 2021, 06:08:07 PM »

Yes that kind of thing.

If you really looked for it, you'd have found it, on the bottom of the board pretty much where the B buttons is.

cfarl · « **Reply #21 on:** August 12, 2021, 06:23:50 PM »

Sorry, I was looking at the wrong side....

Now I found it!

So, I will try this conductive glue.

Hope it works...

Ps. Good news it that from left side of the button there is continuity to R29. Bad news is that TP41 is missing in this controller, and I have to make a jump from it to pin 15 of SOC.

bakachelera · « **Reply #22 on:** August 14, 2021, 07:39:19 AM »

Nice work so far. You're almost done, please update us when you're done with the conductive glue.

RDC · « **Reply #23 on:** August 14, 2021, 08:00:12 AM »

If TP41 is missing then that will also kill the B button. Just prep that via under TP41 and jumper wire from that to the bottom of R29.

cfarl · « **Reply #24 on:** August 15, 2021, 06:51:37 AM »

Quote from: bakachelera on August 14, 2021, 07:39:19 AM

Nice work so far. You're almost done, please update us when you're done with the conductive glue.

I'm waiting the glue from Ali Express.

cfarl · « **Reply #25 on:** August 15, 2021, 06:52:40 AM »

Quote from: RDC on August 14, 2021, 08:00:12 AM

If TP41 is missing then that will also kill the B button. Just prep that via under TP41 and jumper wire from that to the bottom of R29.

Yes, TP41 is missing. The via from R29 to TP41 must be jumped to pin 15 of POC, right?

News:

Author Topic: 1708 - Solder pads missing (Read 1807 times)