Precor AMT 823, Service Manual

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20
If a particular key is not functioning, perform the keyboard test in
Accessing the P30 Diagnostic Software
(on page 13). If the test verifies
that the key is not functioning, replace the console face or the
machine controls.
21
If the console face or the machine controls has been replaced and
the same key or control is still not functioning, replace the upper
PCA.
22
If you have performed steps 18 - 22 and the same key is still not
functioning, contact Precor customer support for assistance.
23
Remove the keypad cable from the upper PCA.
24
For treadmill’s set the on/off switch in the on position for AMT’s,
EFX’s, UBK’s, RBK’s and CLM’s start pedaling.
25
If the STUCK KEY message is no longer displayed, replace the console
face.
26
Set the treadmill’s on/off switch in the off position (Treadmills
Only).
27
Remove the Machine Control cable from the upper PCA.
28
For treadmill’s set the on/off switch in the on position for AMT’s,
EFX’s, UBK’s, RBK’s and CLM’s start pedaling.
29
If the STUCK KEY message is no longer displayed, replace the machine
Controls assembly.
30
If the STUCK KEY is still being displayed with the keyboard cable
disconnected, replace the upper PCA.
31
If you have performed steps 23 - 30 and the STUCK KEY message is
still being displayed, contact Precor customer support for
assistance.
Troubleshooting the Handheld Heart Rate
Circuit Description
The hand held heart rate system is actually a dual system, that is, it
can accept a heart rate signal from either the hand held heart rate
contacts on the unit’s handlebar or from a Polar heart rate chest strap
transmitter. The PCA is configured for hand held priority. That is, if
both a chest strap and hand heart rate signal are being received, the
system will accept the hand held signal and ignore the chest strap
signal. If a hand held signal is not being received, the system will
accept the chest strap signal.