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GENERAL TROUBLESHOOTING GUIDELINES
This troubleshooting section is organized into three basic problem sections:
electrical troubleshooting, console diagnostics, and mechanical troubleshooting.
Once you have identified the problem section, perform all the tests in the same
order as written. To order a replacement part or for help with troubleshooting,
contact our Customer Service Department. Refer to the Appendix for the
appropriate phone number.
ELECTRICAL TROUBLESHOOTING
The 4600/4400 PT electrical system has three major components: the power sup-
ply, the power cables and the console. The 4600/4400 CL also has three major
components: the battery, the power cables, and the console. The console, power
supply and battery are not serviceable by the owner. If any of these parts are in-
operable, they must be replaced. Opening the console or the power supply will
void the warranty.
4600/4400 PT:
1.
Use a voltmeter set on VAC to verify that the AC wall outlet has 100
to 120 VAC (or 220 to 240 VAC, if applicable). If you do not have a
voltmeter plug in an alternate AC-powered device (a lamp, for example).
If the device does not work when plugged into the AC wall outlet,
consult an electrician for further assistance and then retest the AC wall
outlet.
2.
Plug the power supply into the wall outlet. The green Light Emitting
Diode (LED) on the power supply should be on. If the LED does not light
up, replace the power supply.
3.
Disconnect the DC cable from the left side panel. Set the voltmeter to
VDC and test for 12 - 19 VDC in pins #1 (+) and #2 (-). Replace the
power supply if the voltage reading is outside the specified range.
4.
Remove the bottom cover and connect the DC cable to the power
connector on the left side of the frame. Locate the black and white
wires on the backside of the power connector.
TROUBLESHOOTING
Page 37
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Troubleshooting
