Author Topic: XBX/XBS Controller PCB Scans, Traces and Info - 1914  (Read 45544 times)

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #210 on: August 19, 2023, 08:10:36 PM »
It's just for decoupling on the 3.3v rail, anything from 1nF to 1uF would work there.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline rubs

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #211 on: August 20, 2023, 06:17:59 PM »
Thank you RDC my controller is working again!  :victory:

Just another doubt not related to this one. How did you desolder the SOC board from the MCU board?

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #212 on: August 20, 2023, 06:22:48 PM »
Hot air.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline alsina86

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #213 on: September 03, 2023, 12:26:00 PM »
Hi, what kind of diodes are those?


« Last Edit: September 03, 2023, 12:28:17 PM by alsina86 »

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #214 on: September 03, 2023, 01:41:52 PM »
Two are the missing kind, other two are the almost knocked off kind.

Toss 4 new Schottky type in there and she'll be good to go.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline wolfist

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #215 on: September 03, 2023, 04:13:09 PM »
Hello guys, first time posting here, came across this forum due to faulty controller, I have the 1914 updated with the latest firmware due to the fact that it connects and disconnects from Bluetooth, but after that, it started having issues with D pad, LB, RB, A X and Y.

You would start the controller, test its buttons and they would work fine for about two minutes, it is the same behavior if is connected via cable with no batteries to my computer or to an android phone with Bluetooth.

I had the controller opened and and re solder the socket that connects the Power Board with the MCU Board, making sure there are no shorts among lines and the controller would just behave the same, same buttons work fine for 2 to 5 minutes at much, they would have some lag when pressed and then stop working completely.

So I opened the controller again to check for shorted caps or other components around the U4 component in the Power Board, U4 in the MCU board and shorted caps in the SOC board but found almost nothing.

The only three things that got my attention was the CAP 9 in the bottom of the SOC Board that was not shorted but neither could be measured with ground so I checked the schematics but I was unable to measure it against R8, C47 and C48 at the other side of the SOC Board, second the WiFi cables and their ports would sound short with the multimeter even when the Power and MCU boards were separated, and last, the white component (I believe it is called RF transformer, but the one with 4 soldered points, two at each side) in the SOC board would sound shorted with the multimiter.

So after this description of my problem I would follow your suggestions before the ultimate one which is to buy a new one but I dont like making more garbage so I believe it is worth the try.

Thanks you in advance and hope you all do great.

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #216 on: September 03, 2023, 04:34:43 PM »
C9 doesn't connect to ground, and has nothing to do with any of those other components, so no idea what you were trying to test there.

You're continuity checking an RF antenna, that basically is a short with a bit of trace sticking out for the antenna, so there's no issue there.

You're also continuity checking a transformer and that's going to also measure 'shorted', but it's not.

Given that it works, then doesn't after a bit, I'd reflow the MCU and retest. You could poke around during current measurements and looking over the board with a thermal camera while it worked and failed, but something minute is probably warming up and causing an open somewhere, and those BGA connections can do that.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline Greendaycolt

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #217 on: October 20, 2023, 08:09:08 PM »
Check pad 12 of the SOC board, where the SOC board is soldered to the bottom board, and make sure it has continuity to J5p2. If no continuity then repair that open. If it has continuity, then the issue is on the SOC board and would have to be a bad trace, solder joint on the MCU or a bad MCU.

Hi RDC - thanks for the advice but sadly I did not have success with this, continuity was fine between pad 12 and J5p2. Ended up scrapping the board. Now on a different controller, also in close-to-new condition, I have exactly the same issue!

Is there anything else that can be done to troubleshoot? It is bizarre that the guide button still works for powering on the controller but not for the guide function. If it is a problem with the SOC MCU, is there any reasonable way to fix or replace that?

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #218 on: October 20, 2023, 08:49:00 PM »
The Guide button turns the controller on by doing things on the top board, the Guide button 'press' is done on the bottom board.

That GU trace is on an internal layer of the SOC board and goes straight to the MCU, with only 1 via in that line.

You could take a needle and jumper wire it to ground, then power up the controller and poke K1 of the BGA to see what happens.

Looking at the board how it is in the first page, the numbering of the BGA is A1 thru T1. The letters I, O, Q and S are not used in BGA pin naming, X and Z are also not used but that chip isn't that big, so that edge goes..

A1 B1 C1 D1 E1 F1 G1 H1 J1 K1 L1 M1 N1 P1 R1 T1

K1 should be connected to pad 12 of the SOC board. If you can't get Guide to activate by grounding out K1, then that solder connection is bad or the MCU has an issue.
« Last Edit: October 20, 2023, 08:51:30 PM by RDC »
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline Greendaycolt

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #219 on: October 20, 2023, 09:43:44 PM »
Thanks a lot! I now understand what to do, except for the BGA numbering - can you link the reference diagram that is showing the A1 thru T1? I checked the first page but having trouble finding such.

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #220 on: October 21, 2023, 08:20:03 AM »
You can't see any of the BGA connections looking top down, I just used that as the reference. The only ones you can kind of get at are the ones along the outside edges of the chip, and they can only be seen when holding the board almost flat level, 90 degrees from the images of it.

Pinout depends on the chip orientation, with pin A1 in the case of BGA, being in the top left corner, but the chip is on the board 90 degrees Counter Clockwise, so A1 is in the bottom left corner, again looking at it how it is in the images on here. K1 is circled in red.

Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline Ortillson

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #221 on: December 03, 2023, 11:17:11 AM »
Hello if i solder usb wire to D- D+ 5V and GND pads will it work on PC? I am asking because usb type C has more than four connections.
« Last Edit: December 03, 2023, 11:17:53 AM by Ortillson »

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #222 on: December 08, 2023, 01:29:34 AM »
It will work as long as they are soldered correctly, but there is no real benefit in doing that.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline westwest

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #223 on: December 09, 2023, 03:39:50 PM »
Hello! firstly, thanks for all the info in this post it's a treasure trove.  secondly, I have fried 2 capacitors on the MCU board backside - they're labled c322 and c22 -would you happen to know their capacitance so I can replace? thanks in advance!

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #224 on: December 09, 2023, 03:58:54 PM »
You can run it with them missing, not going to hurt anything. If you want to put something there, just toss a 10nF and a 1nF on there. The other Analog lines have a single 10nF, not sure why they went and doubled that one up.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline westwest

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #225 on: December 09, 2023, 07:52:29 PM »
fantastic lmao I'll be honest i was hoping you would say that. This has been my first electronics soldering experience and i'm tired of it, my son wants his controller and I want to be done working on it! Thanks again!  :tup:

Offline Portu40

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #226 on: January 04, 2024, 06:27:05 PM »
Hello, I have a motherboard that apparently got wet. I replaced c36 and c46 which were sulfated but still malfunctioning. Only the triggers, analogs and the power button work. the rest do not respond to any button
https://postimg.cc/dk1rDkC5
« Last Edit: January 04, 2024, 06:33:18 PM by Portu40 »

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #227 on: January 04, 2024, 06:39:55 PM »
Interesting contacts, haven't seen that layout before.

The LSC, RSC and B buttons have nothing to do with the rest of the buttons, which are all on the IO Expander (minus the Guide button), so those should work.

Test the Reset line from U4p24 to J3p9 (goes thru R4) that trace, Resistor or a via can go open and cause issues.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline Portu40

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #228 on: January 05, 2024, 11:56:59 AM »
No. Everything is correct in that area.
Are the replaced capacitors of any particular value? c36 and c46

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #229 on: January 05, 2024, 12:25:04 PM »
C36 - 47pF to 51pF
C46 - 100pF
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline Portu40

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #230 on: January 09, 2024, 06:33:52 AM »
perfect there it worked very well I changed the c46 but I only got 500 pf from a PS4 011 board
thank you very much for your help as always you are an idol

Offline Nyree

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #231 on: January 21, 2024, 02:49:48 PM »
Hello, i have an issue with a controller, the controller dpad up is pressed when its turn on some minutes and stay pressed all the time, im looking the power board and it dont have D6, in the schematics says that is a diode, but i cant find that component for replace

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #232 on: January 21, 2024, 03:03:58 PM »
It says DNI in the schematic for D6. DNI = Do Not Install, it was never there from the factory.

Either there is some corrosion under the DU contacts, a short on the DU line between the contacts and U4, or U4 has gone bad.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline huggies99

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #233 on: January 21, 2024, 08:05:10 PM »
Hello, can you tell me parameters SMD?

« Last Edit: January 21, 2024, 08:13:07 PM by huggies99 »

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #234 on: January 22, 2024, 01:56:16 AM »
No idea, and no way to accurately measure those here. Since it's part of the filtering for the wireless, I'd get them from a donor board so the values are correct.
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline LUCKINHA

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #235 on: February 06, 2024, 10:59:44 AM »
Hello everybody!

I would like to ask for help!  I was changing the right analog stick on the xbox series s/x controller and I accidentally removed capacitor C25 (next to C21) and lost it.  Could anyone tell me the value of the C25 so I can replace it?
« Last Edit: February 06, 2024, 12:29:02 PM by LUCKINHA »

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #236 on: February 06, 2024, 02:40:03 PM »
C25 is 10nF
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

Offline jazpexjones6i9

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #237 on: February 14, 2024, 09:36:04 PM »
I fried my antennae on a 1914 can I some how bypass the antenna connect and run 2 lines? VS coax?

Offline dtml

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #238 on: February 18, 2024, 01:26:14 AM »
Tried to fit Hall Effect sticks however I managed to take Capacitor 37 off by accident, It works grand for a minute then the stick drifts hard to the left until I power cycle the controller. Any idea what value capacitor C37 is?

Offline RDC

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Re: XBX/XBS Controller PCB Scans, Traces and Info - 1914
« Reply #239 on: February 18, 2024, 04:46:34 AM »
C37 is 1uF and it's just a decoupling Cap for the voltage rail of the Trigger Hall sensors, so it's not causing any issue with the sticks. Everything would work fine with it removed, and only the Triggers would be affected if it were shorted. That stick either has some issue, or they aren't great at running from 1.8v
Screwing up is one of the best learning tools, so long as the only thing you're not learning is how to screw up.

 

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