DS1 - +24V
DS2 - + 5V
DS3 - Debug4 (PH7)
DS4 - Debug3 (PG3)
DS5 - Debug1 (PG4)
DS6 - Debug2 / EXTRA BLINK (PB7)
DS7 - USB TX
DS8 - USB RX
DS9 - Cooling fan
DS10 - Heater A
DS12 - Fan A
DS11 - Heater B
DS13 - Fan B
DS14 - HBP
On 11/02/2016 6:09 AM, Afra Hackl wrote:
>
> Hey Guys! I would be really glad if you could help me understand the
> problem! I am not a native englisch speaker and neither a tech geek but I
> ll try my best to explain.
>
> I have an rep2 from 2013 with a Mighty-board Rev G
>
> Problem description:
> 1.Power the rep2
> 2. Display shows firmware version 7.5
> 3. Red light from M button turns off
> 4.Display turns off, same moment the SD6 LED on the mighty board starts
> blinking like crazy
Sounds like corrupted firmware. DS6 is the "Debugging" LED but it won't
be blinking wildly. There's two cases where it will blink:
a. From USB a ABORT, RESET, or CLEAR_BUFFER command is received. It then
blinks on 4 times, pauses, then 4 times, pauses, repeat....
b. If a heater failure occurs, then it blinks 6 times, pauses, blinks 6 times,
pauses, repeat....
So, if it's doing 6 blinks, pause, 6 blinks, pause then it may be trying to
report a problem with a temp sensor. However, you'd see a message on the
LCD screen as well. It sounds more to me like the firmware needs to be
re-installed.
> BUT I can not update Firmware because neither MB Desktop nor Replicator G
> are detecting the Rep2, though my Mac book does…(strange!!??)
There's USB working and there's Desktop and RepG being able to connect to
the printer. They are two different things.
USB working means that the USB chip working.
Being able to talk to the bot requires (1) USB working, and (2) the bot's
printer firmware working. If the printer firmware isn't working -- is
corrupted -- then you cannot expect to be able to talk to the printer
with Desktop or RepG.
As long as the USB is working, then you should be able to load
new firmware UNLESS the bootloader on the printer is also corrupted.
And if something corrupted the printer firmware then it may well have
corrupted the bootloader as well. To put a bootloader back on just
requires A $10 - $20 AVR ISP programmer and a little knowledge.
Jetguy regularly posts the instructions. Here's a link to a recent post
of his with the directions. (They're for a WanHao printer but they are
the same for your printer.)
https://groups.google.com/d/msg/wanhao-printer-3d/DWLSyOWFbaI/15z81CJFCgAJ
Dan