Dyaco XE330D, Service Manual

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S S e e r r v v i i c c e e M M a a n n u u a a l l
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Tension Motor Operation
Part Description
Display
Key signal travels to the display. The main program IC then
sends a command signal to the Tension Motor.
Tension Motor
Tension Motor receives the signal and responds by putting
out power to the motor. Level UP:+5VDC;Level
DOWN:-5VDC
Tension Motor Troubleshooting
Part Description
Display
If the key beeps when pressed, assume that the signal was
sent.
Data cable Inspect the cable and connections.
Tension Motor
Inspect Display board output to the motor. Press the Level Up
is +5VDC;Level DOWN is -5VDC.If there is power to the
motor, but the motor does not operate, replace it.If there is no
power output, inspect whether the drive board has power.
Tension Motor Voltage Test Procedure
1. Put multi-meter to the 12VDC setting. Place probes on the motor control wire (Red probe in purple wire, Black probe in white
wire) on the
10-pin cable
.
2. Turn on unit power. The display lights up.
3. Press LEVEL UP. Normal reading : +5.5~6.0VDC.Motor operates. Resistance increases.
4. Press LEVEL DOWN. Normal reading : -5.5~6.0VDC.Motor operates. Resistance decreases.