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FREQUENCY CALIBRATION | ADJUSTMENTS |
YIG Oscillator
Switched Filter
BBRAM chip on the A9 Processor PCB is replaced and the Source Calibration Data was not previously saved on disk (thus data could not be recalled from disk).
Calibration Perform the following steps:
Procedure
Equipment Required
Refer to Table
EIP Model 578B Frequency Counter, or equivalent.
RF/Microwave Cable
GPIB cable, WILTRON
NOTE
Allow the 373XXA and Frequency Counter to
Procedure
Step 1. Press the Option Menu key (Enhancement key group) to dis- play the OPTIONS menu.
Step 2. Select DIAGNOSTICS from menu; then select in se- quence: H/W CALIBRATION, and then SOURCE FREQUENCY CALIBRATION (below).
OPTIONS
TRIGGERS
REAR PANEL
OUTPUT
DIAGNOSTICS
MULTIPLE SOURCE CONTROL
PRESS <ENTER> TO
SELECT
DIAGNOSTICS
START SELF TEST
READ SERVICE LOG
INSTALLED OPTIONS
PERIPHERAL TESTS
TROUBLESHOOTING (FOR SERVICE ONLY)
H/W CALIBRATIONS (FOR SERVICE ONLY)
PRESS <ENTER> TO
SELECT
HARDWARE CALIBRATIONS (FOR SERVICE ONLY)
LO1
CALIBRATION
LO2
CALIBRATION
SOURCE FREQUENCY CALIBRATION
SOURCE ALC
CALIBRATION
DISK OPERATIONS
PREVIOUS MENU
PRESS <ENTER> TO
SELECT
HARDWARE CALIBRATIONS (FOR SERVICE ONLY)
START ALC
FREQ CALIBRATION
PREVIOUS MENU
PRESS <ENTER> TO
SELECT
373XXA MM |