Adjustments; Extender Cable Installation; Default Calibration Load - HP 54501A Service Manual

HP 54501A ADJUSTMENTS
4-10. SYSTEM BOARD ASSEMBLY ADJUSTMENTS
4-11 . Extender Cable Installation
Equipment Required:
Extender Cable . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 54503-61604
4-12. Default Calibration Load
No Equipment Required
NOTE
Use an external fan on the power supply to prevent the possibility of ther-
mal cut-out of the power supply .
Procedure :
1 .
Remove power from HP 54501 A.
2 . Remove top cover.
3.
Disconnect power supply cables from line filter and System Board Assembly .
4 .
Remove locking pins from power supply.
5.
Slide power supply out from side of HP 54501A.
6.
Connect the Extender Cable from power supply to System Board Assembly .
7.
Reconnect line filter cable to power supply.
8.
Connect power cable and apply power.
1 .
Invoke SERVICE MENU by first pressing front-panel UTIL key and then selecting service
menu .
2.
Select cal select 3 with menu softkey .
3.
Set rear panel CALIBRATION switch to UNPROTECTED position .
4.
Press start cal menu softkey . A caution message will be displayed indicating the cal RAM will
5.
Press continue softkey .
7.
Leave rear panel switch in UNPROTECTED position for self calibration procedure that is per-
formed later in this section .
be overwritten with default values .
6.
The status message at the top of the menu will indicate default cal has been loaded .