EFX 885, 835, 825
Service Manual 20039-166
Page 121
©2011 Precor Incorporated, Unauthorized Reproduction and Distribution Prohibited by Law
5.
If the upper PCA is not illuminating, skip to step 12.
6.
If the metrics PCA is not illuminating, continue with step 7.
7.
Remove the four screws that fasten the metrics PCA to the display face and rotate it so that the front of the
8.
With a DC voltmeter, measure between C5 (+5V) and L2 (GND) on the metric board and L27 (+5V) and
L28 (GND) of JK6 connector of the upper PCA for 5Vdc. See Diagram 6.11.3
Diagram 6.11.3 - Metrics PCA, Front View
9.
If 5 Vdc is not present on C5 and 5 Vdc is present on L27, replace the metrics cable between the upper
PCA and the metrics PCA.
10.
If 5 Vdc is present on C5 and the upper PCA is illuminating normally, replace the metrics PCA.
11.
If you have performed steps 7 - 10 and the metrics PCA still does not illuminate, contact Precor customer
support for assistance.
12.
13.
With a DC voltmeter, measure between pins 1 and 6 of JK9 (JTAG Connector) for 3.3 Vdc and between
pins 6 and 7 of JK5 (Option Cap connector) for 8 Vdc.
14.
If 3.3 Vdc is not present on JK9 and 8 Vdc is present on JK5, replace the upper PCA.
15.
If 8 Vdc is not present on JK5, temporarily replace the upper PCA to power control module cable with a
known good cable.
16.
If
the upper PCA illuminates normally, replace the upper PCA to power control module cable permanently.
If the upper PCA still does not illuminate, replace the power control module (treadmills) or Lower PCA
17.
If you have performed steps 12 - 16 and the upper PCA still does not illuminate, contact Precor customer
support for assistance.
L2 (GND)
C5 (+ 5V)
Summary of Contents for EFX 825
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