Service manual

C762, C764, C764i Stairclimber
Page 28
Diagram 6.3 - Upper PCA Component Layout
Table 6.1 - Voltage Test Points (Function Keys Not Pressed)
PLACE THE POSITIVE LEAD OF THE THE VOLTMETER SHOULD
VOLTMETER ON... READ...
Pin 1 of J4 5 Vdc ± 500 mVdc
Pin 2 of J4 5 Vdc ± 500 mVdc
Pin 3 of J4 5 Vdc ± 500 mVdc
Pin 4 of J4 5 Vdc ± 500 mVdc
Pin 6 of J4 5 Vdc ± 500 mVdc
Pin 7 of J4 5 Vdc ± 500 mVdc
Pin 8 of J4 5 Vdc ± 500 mVdc
Pin 9 of J4 5 Vdc ± 500 mVdc
Pin 4 of J2 5 Vdc ± 500 mVdc
Table 6.2 - Voltage Test Points (Function Keys Pressed)
PLACE THE POSITIVE LEAD AT THE ELECTRONIC THE VOLTMETER
OF THE VOLTMETER ON... CONSOLE, PRESS... SHOULD READ
BETWEEN...
Pin 1 of J4 Left CHANGE key 0 Vdc and 350 mVdc
Pin 2 of J4 STOP key 0 Vdc and 350 mVdc
Pin 3 of J4 WORK LEVEL
▼ key 0 Vdc and 350 mVdc
Pin 4 of J4 WORK LEVEL
▲ key 0 Vdc and 350 mVdc
Pin 6 of J4 QUICK START key 0 Vdc and 350 mVdc
Pin 7 of J4 ENTER key 0 Vdc and 350 mVdc
Pin 8 of J4 Right CHANGE key 0 Vdc and 350 mVdc
Pin 9 of J4 Center CHANGE key 0 Vdc and 350 mVdc
Pin 4 of J2 RESET key 0 Vdc and 350 mVdc
7. If the voltage readings match those listed in Tables 6.1 and 6.2 and one or more keys do not
function, replace the upper PCA.