I'm on 3rd powersupply. They keep dying, and heating up.

Discuss x0x construction and related issues

Moderators: altitude, adafruit_support_bill, adafruit, phono, hamburgers

Please be positive and constructive with your questions and comments.
Locked
User avatar
Terrakroma
 
Posts: 9
Joined: Tue Aug 19, 2014 7:38 pm

I'm on 3rd powersupply. They keep dying, and heating up.

Post by Terrakroma »

Hello,

After building the sequencer, everytime I plug in a power supply, they work for a minute or so, and then the voltage goes down to .001 volts, and I have to order another one online. What could cause this?

User avatar
antto
 
Posts: 1636
Joined: Thu Apr 15, 2010 3:21 pm

Re: I'm on 3rd powersupply. They keep dying, and heating up.

Post by antto »

what are the exact specifications written on the adaptor?

User avatar
altitude
 
Posts: 995
Joined: Wed May 11, 2005 5:17 pm

Re: I'm on 3rd powersupply. They keep dying, and heating up.

Post by altitude »

Sounds like a short on the 5V rail. Measure resistance between pin 3 and 2 of the 7805

User avatar
Terrakroma
 
Posts: 9
Joined: Tue Aug 19, 2014 7:38 pm

Re: I'm on 3rd powersupply. They keep dying, and heating up.

Post by Terrakroma »

9 vac 500 ma. How do I test i? the psu will short out after a few seconds?

User avatar
Terrakroma
 
Posts: 9
Joined: Tue Aug 19, 2014 7:38 pm

Re: I'm on 3rd powersupply. They keep dying, and heating up.

Post by Terrakroma »

Found the short on C4! Psu is ok! I am getting no lights at all though. What next?

User avatar
Terrakroma
 
Posts: 9
Joined: Tue Aug 19, 2014 7:38 pm

Re: I'm on 3rd powersupply. They keep dying, and heating up.

Post by Terrakroma »

Super tiny Short on C4! Fixed!i have sound and lights! The midi in/ thru and USB are not working at all on this willyxyz kit. I am testing the unit now in keyboard mode and random. None of the pattern modes are playing back.

Locked
Please be positive and constructive with your questions and comments.

Return to “Making x0x”