Precor EFX546 Manual de servicio descargar pdf (Pagina 35)

C546 Elliptical Fitness Crosstrainerl

Page 35

4. Set the voltmeter to a range that will conveniently read +6 Vdc.

5. Set the circuit breaker in the “on” position.

6. Use a DVM, set for DC volts, and read between pin 6 of J4 and the each of the pins in Table

6.1 (no keys pressed) and Table 6.2 (with the appropriate key pressed)...

Table 6.1. - Voltage Test Points (Function Keys Not Pressed)

PLACE THE POSITIVE LEAD OF THE THE VOLTMETER SHOULD READ...

VOLTMETER ON...

Pin 3 of J4 5.25 Vdc ± 50 mVdc

Pin 4 of J4 5.25 Vdc ± 50 mVdc

Pin 5 of J4 5.25 Vdc ± 50 mVdc

Pin 7 of J4 5.25 Vdc ± 50 mVdc

Pin 8 of J4 5.25 Vdc ± 50 mVdc

Pin 9 of J4 5.25 Vdc ± 50 mVdc

Pin 10 of J4 5.25 Vdc ± 50 mVdc

Table 6.2. - Voltage Test Points (Function Keys Pressed)

PLACE THE POSITIVE AT THE DISPLAY THE VOLTMETER SHOULD

VOLTMETER LEAD ON... ENCLOSURE, PRESS... READ BETWEEN...

Pin 3 of J4 ENTER 0 Vdc and 500 mVdc

Pin 4 of J4 CROSSRAMP

▼ 0 Vdc and 500 mVdc

Pin 5 of J4 CROSSRAMP

▲ 0 Vdc and 500 mVdc

Pin 7 of J4 PAUSE 0 Vdc and 500 mVdc

Pin 8 of J4 RESISTANCE

▼ 0 Vdc and 500 mVdc

Pin 9 of J4 RESISTANCE

▲ 0 Vdc and 500 mVdc

Pin 10 of J4 QUICK START 0 Vdc and 500 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.

8. If the voltage readings in Table 6.1 are incorrect, disconnect the keypad cable from the key

pad connector and repeat the voltage measurements in 6.1. If the voltage readings are now

correct, replace the display housing (keypad). If the voltage readings are still incorrect,

replace the upper PCA.

9. If the voltage readings in Table 6.1 are correct and one or more voltage readings in Table

6.2 are incorrect, replace the display housing (keypad).

10. Set the circuit breaker in the “off” position.

11. If necessary, carefully re-connect the keypad cable to the keypad connector.

12. Remove the ground lead of the wrist strap from the treadmill frame, then remove the wrist

strap from your arm.

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Precor EFX546 Manual de servicio Pagina 35