Led Identification - Janome Quilt Maker Pro 18 VERSA Service Manual

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LED Identification

When you first power on the Quilt Maker Pro 18
VERSA, each of the LEDs in the control board LED
bank will briefly flash in succession. Following that
initial flash, the LED (labeled HrtBt) should flash in a
"heart beat" fashion to indicate that the processor is
running and is not locked up. If the processor is locked
up, this LED will be locked in either an "On" or an
"Off" state.
A description of each of the 8 LEDs and its function is
listed below:
• D3 "HrtBt": Flashing in a "heartbeat" fashion
indicates the processor is running .
• D6 "Speed": Flashes 100 times per revolution of the
hand wheel.
• D5 "Option": Should be on when the stitch
regulation overspeed alarm is on.
• D4 "Needle": Should be Off when the take-up lever
is all the way in the Up position. Should be On when
the take-up lever is down or anytime it is not fully in
the Up position.
• D10 "Test 4": Should flash rapidly when
communication with the handlebars is established.
• D9 "Test 3": Transmit LED should flash rapidly when
communication with the handlebars is established.
• D8 "Test 2": Should be On when stitch Regulation is
on .
• D7 "Test 1": Turns on when the "Start" button
is pressed, indicating that the motor should be
running. (Go LED)
Page 34
Control Pod Power LEDs
Near the top of the control board are two green LEDs.
The control board receives an input of +48V from
the power supply and it converts this voltage into
two different voltage levels. The left LED (closest to
the +18Vdc label) indicates that the 18V power is
functioning and the right LED (closest to the +5Vdc
label) indicates that the 5V power is functioning.
If either of these LEDs is not on, first disconnect all
cables from the control board except the red/black
power connector at the top. If the LED(s) are still
not on, then there may be an issue with the on-
board power supply. If the LEDs both begin working
again, this may indicate that one of the peripherals is
shorting out the control board.
Begin plugging the cables back in one at a time
(powering off between the connection of each cable)
until you find the cable that is causing the issue. If
it is a handlebar cable, then the issue could be the
internal cable, the external cable, or the handlebar
itself. You could then try plugging that cable back in
with the handlebar disconnected to verify whether
it is the cable or the handlebar. If it is one of the
other cables, then the problem may be related to
that particular component (needle/speed encoder or
motor driver).
However, if both LEDs are off, check to make sure the
black power cord is plugged in and the power switch
is ON. A volt meter may be used to verify that there
is 48V DC between the red/black connector on the
top of the control board. If you do not have 48V DC,
then the power supply and attached cables should be
inspected for any short circuits or wires breaking away
from connectors, both on the control board side and
power supply side. If the volt meter indicates that the
48V is present at the control board power connector
and the control board power LEDs are off, then the
C-Pod should be replaced.
Quit Maker Pro 18 VERSA

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