Search found 10 matches

by ChuckE
Mon Jul 15, 2019 5:21 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

Unfortunately it did not last long, must have damaged board removing USB socket. Hopefully this week for new boards.
by ChuckE
Sun Jul 14, 2019 10:16 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

My order numbers are 76041 and 83924 from Crowd Supply. ChuckE
by ChuckE
Sun Jul 14, 2019 10:11 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

I am grateful for your great customer support. I know that your second batch is expected to start shipping on the 17th as I have ordered a second Stereopi. I am happy to report that with extreme effort I was able to remove the USB port, replace PMIC and caps, and the unit has successfully booted up....
by ChuckE
Thu Jul 11, 2019 4:04 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

Now that I have removed C23, C24, and C47 I still have the same problem, short between ground and 5V. My board failed after installing a USB WiFi dongle. Should have looked there first. There are no pins to connect to the dongle as it looks like they were pushed down and bent when I inserted the don...
by ChuckE
Mon Jul 08, 2019 3:34 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

Oops, watching Wimbledon and not paying attention. Tried to open MAC files instead of Windows after extraction. No problems with files. ChuckE
by ChuckE
Mon Jul 08, 2019 1:46 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

Thanks so much, will help enormously. Interesting that when I extracted the files Adobe couldn't open them saying they were damaged or encoded wrong. But Adobe did open the files in the zipped folder. ChuckE
by ChuckE
Sun Jul 07, 2019 4:45 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

Much appreciated! Somewhere it is posted that an alternative to Altium is sought. I have the legacy software of Altium, Protel Advanced Schematic and PCB. I see no reason to pay the high price of subscription to Altium as the Protel software suits my needs. If you are the person that posted that and...
by ChuckE
Fri Jul 05, 2019 8:50 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

Well, that didn't work. I am now assuming C23 and/or C24 have failed. When 5V is applied it drops to less than 500mV, probably due to limitations of power supply. Hoping that if I remove PMIC, C23, and C24 and apply 5V that 5V LED will light up indicating no shorts. Can you share component placement...
by ChuckE
Mon Jun 24, 2019 4:20 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Re: Fried PMIC

Great, will purchase and replace. I have an additional compute module if necessary. Thanks.
by ChuckE
Sun Jun 23, 2019 8:45 pm
Forum: StereoPi hardware
Topic: Fried PMIC
Replies: 16
Views: 778

Fried PMIC

I may have fried my board by not properly shielding it from loose wires. Hopefully the PMIC on the Stereopi is not like that of the Pi 3B+ in that it cannot be replaced without the proper I2C programming. If I replace the LM26420, assuming it is the only part damaged, should the Stereopi boot?