Precor C546, Service Manual

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C546 Elliptical Fitness Crosstrainer
Page 30
Procedure 6.1 - Troubleshooting the Lower and Upper
Interconnect Cables
Anti-static kits can be ordered from Precor (part number 20024-101).
Troubleshooting the Upper Interconnect Cable
Note:
There are three different interconnect cable combinations that were used on the C546. Units with
serial numbers starting with 4H or 5V manufactured prior to Feb. 8, 1999 used an upper and
lower ribbon cable. Units with serial numbers starting with 4H or 5V manufactured after
Feb. 8, 1999 used a single ribbon cable. Units with serial numbers starting with 9A, 9B, 75 or 9K
use an upper and lower telephone cable (RJ45). For units with serial numbers starting with 4H or
5V manufactured prior to Feb. 8, 1999 start with step 1. For units with serial numbers starting
with 4H or 5V manufactured after Feb. 8, 1999 start with step 22. For units with serial numbers
starting with 9A, 9B, 75 or 9K manufactured start with step 31.
Version 1 units, manufactured prior to Feb. 8, 1999
1. Set the on/off switch in the “off” position.
WARNING
Before continuing with this procedure, review the Warning and Caution statements listed in
Section One, Things You Should Know.
2. Attach the anti-static wrist strap to your arm, then connect the ground lead of the wrist strap
to the units frame.
3. Remove the interconnect cable cover. (See Diagram 7.2)
4. Remove the rear cover. For convenience the upper interconnect cable is the cable that
attaches to the upper PCA and the lower interconnect cable is the cable that connects to the
lower PCA.
5. Lay the unit on it’s side. There is an access hole in the bottom of the main frame tube that
allows access to the junction of the upper and lower interconnect cables. (See Diagram 7.6)
6. Disconnect the upper interconnect cable from the upper PCA and the lower interconnect
cable.
7. Connect a known good upper interconnect cable from the lower interconnect cable to the
upper PCA. Route the cable outside of the unit at this time.
8. Check operation as described in Section Four.
9. If the unit operated correctly when the new interconnect cable was installed, the original