Service manual

Revision D
iii
Series 2000 Treadmill
409110-004
Test #1 ............................................................................................... 3-7
Ground-Wire-Leakage-to-Ground .........................................3-7
Test #2 ............................................................................................... 3-7
Chassis-Leakage-to-Ground (Exposed Chassis) ...................3-7
Test #3 ............................................................................................... 3-8
Patient-Cable-Leakage-to-Ground .........................................3-8
Test #4 ............................................................................................... 3-8
Patient Cable-Leakage-into-Patient Leads-from 120 VAC .....3-8
Ground Continuity Test ...................................................................... 3-9
Self-Calibration ..................................................................... 3-10
When to Calibrate ............................................................................. 3-10
Activating Self-Calibration ................................................................ 3-10
Belt Tracking Adjustments ......................................................... 3-11
When to Adjust ................................................................................ 3-11
Check Treadmill Level ...................................................................... 3-11
Adjust Pulley Screws ....................................................................... 3-12
Miscellaneous Maintenance Forms ............................................... 3-13
4
Troubleshooting ........................................... 4-1
Power PCB Theory .................................................................... 4-3
General Description ............................................................................ 4-3
Power Distribution/Isolation .............................................................. 4-3
STOP Circuitry ................................................................................... 4-3
Frequency-to-Voltage Converter/Amplifier ......................................... 4-3
Start/Stop Circuitry ............................................................................ 4-4
Elevation Relays ................................................................................. 4-4
Drive Connector ................................................................................. 4-4
Hall Feedback ..................................................................................... 4-4
Power Inlet, Drive Power Outlet, and Mains ....................................... 4-4
Control Board Connector ................................................................... 4-4
Elevation Sensor ................................................................................ 4-5
Isolation Transformer ........................................................................ 4-5
Power Supplies .................................................................................. 4-5
Isolated Serial Link ............................................................................. 4-5
Debug/Serial Link ............................................................................... 4-5
ESD and EMI Compatibility ................................................................ 4-6
Power Supply Requirements .............................................................. 4-6
Precautions ...................................................................................... 4-12
Initial Board Conditions .................................................................... 4-12