INSTRUCTIONAL MANUAL
2750L-P/4500L-P/6000L-P
August, 2001
Rev. K
-111-
SECTION 6
MAINTENANCE AND TROUBLESHOOTING
6.1 GENERAL
This section describes the suggested maintenance and troubleshooting procedures. Table 6-1 lists the paragraph titles
and page numbers for the Troubleshooting section. If the AC Power System does not appear to function normally, use
this section to isolate the problem. If the problem cannot be found using these steps, consult the factory.
Table 6-1
TROUBLESHOOTING
PARAGRAPH PROBLEM
PAGE
6-2
Poor Voltage Accuracy
6-3
Poor Output Voltage Regulation
6-4
Overtemperature Lamp On
6-5
Overload Lamp On
6-6
Can't Program AC Power System on GPIB
6-7 Distorted
Output
6-8 No
Output
6.2
POOR VOLTAGE ACCURACY
If the power source exhibits poor programmed voltage accuracy, the following item may be at fault:
1.
The calibration is incorrect.
SOLUTION:
Calibrate the output. Refer to Paragraph 4.3.1 page 82 .
6.3
POOR OUTPUT VOLTAGE REGULATION
If the AC Power System exhibits poor voltage regulation the following item may be at fault:
1.
The External Sense lines are not connected at the same point monitored by the external voltmeter
used for load regulation check.
SOLUTION:
Connect AC voltmeter to External Sense lines.
6.4
OVERTEMPERATURE LAMP ON
If the power source OVERTEMP lamp is on, the following may be at fault:
1.
Ambient temperature is too high.
SOLUTION:
Operate power source between 0 and 35
°
C.
2.
Fan or ventilation holes are blocked.
SOLUTION:
Remove obstructions.
3.
Fan not working.
SOLUTION:
Replace fan. Consult factory.
Summary of Contents for 2750L-P Series
Page 119: ...INSTRUCTIONAL MANUAL 2750L P 4500L P 6000L P August 2001 Rev K 115 Figure 6 1 MODULE LOCATION...
Page 138: ...INSTRUCTIONAL MANUAL 2750L P 4500L P 6000L P August 2001 Rev K 134 Figure 14 EMERGENCY VOLTAGE...
Page 148: ...INSTRUCTIONAL MANUAL 2750L P 4500L P 6000L P August 2001 Rev K 144 FIGURE 2...
