Welcome! Log In Create A New Profile

Ramps 1.4 did not wake up without USB source

masterviana

Ramps 1.4 did not wake up without USB source
August 21, 2018 07:09AM

Registered: 2 years ago
Posts: 31

I everone,

I am used to use my ramps board with rasp pi for months, today I've unmount my printer and I notice that the board not wake until I connect the Pi to the usb port.

What could cause this?

Reply Quote

VDX

Re: Ramps 1.4 did not wake up without USB source
August 21, 2018 07:24AM

Admin
Registered: 11 years ago
Posts: 11,961

... could be, the +5 regulator is wrecked ...

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org]
Call for the project "garbage-free seas" - [reprap.org]

Reply Quote

Dust

Re: Ramps 1.4 did not wake up without USB source
August 21, 2018 08:02AM

Registered: 8 years ago
Posts: 4,678

yip nearly always dead 5v regulator on the mega

Reply Quote

masterviana

Re: Ramps 1.4 did not wake up without USB source
August 21, 2018 09:51AM

Registered: 2 years ago
Posts: 31

Tks for the reply, how did it happen? Its possible to fix or should I buy new mega?

Reply Quote

Dust

Re: Ramps 1.4 did not wake up without USB source
August 21, 2018 10:43AM

Registered: 8 years ago
Posts: 4,678

normal cause it drawing to much current,

Shorting 5v to gnd via a endstop plugged in backwards is most common way to kill it.

It can be replaced, if you can solder..

Reply Quote

masterviana

Re: Ramps 1.4 did not wake up without USB source
August 21, 2018 02:20PM

Registered: 2 years ago
Posts: 31

Yes I could solder it, but I didn't know what I need to solder could you point me the image?

Reply Quote

Dust

Re: Ramps 1.4 did not wake up without USB source
August 22, 2018 12:49AM

Registered: 8 years ago
Posts: 4,678

see [www.instructables.com]

but I wouldn't use the a huge TO-220 package, that is just rubbish.

The part is normally a NCP1117ST50T3G (available on ebay)