Service manual

Revision D 4-25
Troubleshooting: General Fault Isolation
Series 2000 Treadmill
409110-004
Power Supply Voltage
Checks
With the power on, remove the side panel on the electronics box to
measure the system’s supply voltages as follows:
■ On the control board, PN 800320-001, check the voltages on
pins 2, 34, and 36 in reference to digital ground (see illustration).
The control board is mounted on the power board.
■ On the power board, PN 800334-002, check for +5 V-ISO across
diode VR5.
Speaker Check
With the shroud removed, listen for the speaker output during power-
up. There should be 2 short beeps to indicate “system OK”.
Service Port
The self-diagnostic software is not available at this time.
800320-001E
Pin 2
+5 VDC
Pin 34
-7.5 VDC
Pin 36
+16.5 VDC
Pin 1
Digital Ground