- Unbenannt.JPG (98.42 KiB) Viewed 286 times
Before measurement I woud say 100nF and after 400/380nF. But I really don't know.
A FULL chematic would be great.
The fondation don't help and wrote that I ask here.
Thanks for help.
Raspberry 4b 8GB Capacitor
Hi, I damaged a capacitor near to the LEDs and USB-C Port. Next to the MXL7704 Chip. I had to take out because it short cut the power. Witout is working as well but for sure I like to replace.
As I found it should be Type 0805. Is on Vin1 Vin2 for pin 28/29 on MXL7704 . I measured on a woking 4GB version unsoldered an poth are parallel and had 830nF.
Before measurement I woud say 100nF and after 400/380nF. But I really don't know.
A FULL chematic would be great.
The fondation don't help and wrote that I ask here.
Thanks for help.
Before measurement I woud say 100nF and after 400/380nF. But I really don't know.
A FULL chematic would be great.
The fondation don't help and wrote that I ask here.
Thanks for help.
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RGJ-PI
- Raspberry Pi Engineer & Forum Moderator
- Posts: 136
- Joined: Fri May 24, 2019 2:10 pm
- Location: Cambridge UK
Re: Raspberry 4b 8GB Capacitor
The part is a 22uF 6.3V X5R capacitor.
Re: Raspberry 4b 8GB Capacitor
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- IMG_20200718_110700.jpg (23.17 KiB) Viewed 264 times
Re: Raspberry 4b 8GB Capacitor
You are great! Thaks a lot! I ordered the capacitor already.
May I ask about the IC in schematics. From where I can see that the IC is the MXL7704?
May I ask about the IC in schematics. From where I can see that the IC is the MXL7704?
Re: Raspberry 4b 8GB Capacitor
It is a MxL7704-P4 which is a Raspberry Pi 4 specific variant of the MxL7704. There are some undocumented differences in the default power-on configuration from the generic MxL7704 part you can buy.