HQ Infinity Service Manual
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Loose or disconnected cables
•
Remove the four screws from the rear panel and
gently pull the panel out. Make sure all the AC wires
(blue, brown and green/yellow) are connected
properly. For more information, see
Section 23, 48V
Power Supply
.
•
Also check the DC wires running from the top of the
power supply to both the front distribution board
(QM23005) and the main control board (QM23004).
The main control board requires two sets of DC wires.
For more information, see
Section 25, Main Control
Board
.
Motor not running. Pressing Start or Needle
Up/Down on the handles results in the
system freezing up and the motor not
running.
Corrective Measure(s)
Loose or damaged motor wiring.
•
Check to make sure the cables from the drive motor
(two sets of wires directly from the motor and one
from the encoder on the back end of the motor) are
plugged in properly and are not damaged. Replace
the motor encoder cable if needed (QM23071).
If the motor wires are damaged, the entire drive
motor will need to be replaced (QM23001). For more
information, see
Section 30, Drive Motor
.