
Troubleshooting
Introduction
7
7-3
Introduction
7-1.
This section provides troubleshooting information in three parts. First a listing of all
5725A fault codes is provided for reference in Table 7-1. Following that is a description
of 5725A automated self-diagnostics that you run from the 5700A. Finally, some manual
tests are provided that can help you isolate a fault.
5725A Fault Codes
7-2.
Table 7-1 lists all 5725A fault codes. Fault codes and descriptions appear on the 5700A
Control Display in fault conditions. The codes and descriptions can also be transferred
from the 5700A in remote control operation. Where fault messages are not self-
explanatory, additional explanation is given in the table.
Self Diagnostics
7-3.
The best way to begin looking for the source of a fault is to run self diagnostics from the
5700A diagnostics menu. To run self diagnostics, proceed as follows:
1.
Press the "Setup Menus" softkey. (If "Setup Menus" is not showing on the Control
Display, press RESET first to return to the 5700A power-up state.)
2.
Press the "Self Test & Diags" softkey.
3.
Press the "5725A Self Diags" softkey.
4.
Begin testing with the voltage function. Press the "Voltage" softkey. A sequence of
self tests is run. A brief description of each test follows:
a.
5725A ACV Sense Amp: Checks for proper operation of the high voltage sense
amplifier on the High Voltage Sense Assembly (A6).
b.
5725A ACV Standby: Puts the 5725A into voltage standby mode, and causes the
analog monitor circuit on the High Voltage Sense Assembly (A6) to cycle
through the continuous tests it does during normal operation.
c.
5725A ACV Operate: Puts the 5725A into voltage operate mode, but
disconnects the output from the 5700A binding posts. This test makes sure that
the High Voltage Amplifier (A3) works correctly, and checks the analog monitor
circuit on the High Voltage Sense Assembly (A6) for correct operation.
d.
5725A Cal Sensor: Verifies that the calibration circuitry on the High Voltage
Sense Assembly (A6) is working correctly.
5.
This completes voltage function testing. If any of the self tests fail, a fault code and
message is displayed.
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