Looking for parts info (Nintendo Switch Original)

Nintendo Questions Nintendo Switch
1

I found there are 2 missing parts in the circuit. Can anyone helps to identify them?

After I reflowed the Pi3USB chip, it failed to boot (no screen no sound and no magic smoke). It was no TV output issue.

Appreciate your help!

IMG_2937
IMG_2936

2

What is the point for reflowing a pi3usb? If there is no output to the dock, from my experience the pi3usb is bad if the filters and the port are fine.

The Switch will boot without pi3usb. I would remove the pi3usb and check if the Switch is booting again.

1st pic and 2nd pic: Both 0201 100 kOhm

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3

Thx Calvin for your prompt response! I did checked the filter is fine and the USB port is able to charge before I go reflow the PI3USB chip. Actually the TV out was OK for a few seconds then off totally, TV hdmi can’t detect any signal then. That’s why I assume the chip may be malfunction.

After I reflowed the chip and went through a screening process is there anything weird, I found 2 parts are missing. I assume it might be my bad during the repair process :-p. I think missing these 2 parts is one of a key factor causing no boot issues.

4

@Calvin After replacement of these 2 100K 0201, it boots up again! Thx again!

I checked it can be recharged with Apple psu or Nintendo original psu too. Unfortunately, the TVout HDMI issue stills there. It now even has no few seconds TVout capability at all. :frowning:

May I seek for any suggestions I can have further check on TV out circuit? This is my first time reflow chip btw :sweat_smile:

IMG_3183
IMG_31833024×4032 3.07 MB

5

Here some photos for reference on my work done and USB-C port. Do u think usb-C is good?

IMG_3185
IMG_31853024×4032 3.45 MB

IMG_3184
IMG_31843024×4032 3.86 MB

IMG_3186
IMG_31861512×2016 1.13 MB

IMG_3187
IMG_31871512×2016 1.03 MB

6

I think for better diagnostic a usb c breakout board or a tester would be handy.

Both caps at the fourth filter from the top look a bit moved.

DiodeMode_PI3USB_testing
DiodeMode_PI3USB_testing978×747 33.7 KB

7

For testing the filter, I had continuity test on each pair to ensure it is fine. Am I doing this way correctly? May I ask the part no for this filter just in case I have to replace it too :stuck_out_tongue_winking_eye:

In regards USB-C breakout board, is it something likes the one as attached?

IMG_3191
IMG_31911170×1170 253 KB

8

Yes, the breakout board would do it.

If you test continuity from the breakout board pin to the coresponding pad at the cap (for SBU1/2 direct at the pi3usb) over the filter, you check the correct connection of the plug inside the port, the port connections to the board and the filters all in one measurement. The filters should not cross talk.

9

What is the part number for these filters?

10

EXC-24CE900U for the v1 pi3usb TX/RX filters

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