Service Guide
14-35
HP 8719ET/20ET/22ET
Assembly Replacement and Post-Repair Procedures
HP 8719ES/20ES/22ES
Post-Repair Procedures
RF Network Analyzers
Post-Repair Procedures
After the replacement of an assembly, you must perform the service procedures listed in
Table 14-1
.
NOTE
Perform the procedures in the order that they are listed in the table.
Table 14-1 Related Service Procedures
Replaced Assembly
Adjustments / Correction
Constants (CC)
Verification
A1 Front Panel Keyboard
None
Internal Test 0
Internal Test 12
Internal Test 23
A2 Front Panel Processor
None
Internal Test 0
Internal Test 12
Internal Test 23
A4/A5/A6 Second
Converter
Raw Offset CC
Sampler Calibration CC (Test 51)
Frequency Accuracy Performance Test
Dynamic Range Performance Test
A52 Pulse Generator
Raw Offset CC
Sampler Calibration CC (Test 51)
Frequency Accuracy Performance Test
Dynamic Range Performance Test
A8 Post Regulator
None
Internal Test 0
Check A8 test point voltages
A7 CPU
a
a. If you have an EEPROM backup disk available, you only need to perform the first three tests
listed.
A7 Switch Positions
Load Firmware
CC Retrieval
Serial Number CC (Test 49)
Option Number CC (Test 50)
Analog Bus CC (Test 44)
Source Pretune CC (Test 43)
IF Step CC (Test 47)
Raw Offset CC
Sampler Calibration CC (Test 51)
EEPROM Backup Disk
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
Dynamic Range Performance Test
A9 Source Control
Raw Offset CC
Sampler Calibration CC (Test 51)
Frequency Accuracy Performance Test
Dynamic Range Performance Test
A10 Digital IF
A7 Switch Positions
Analog Bus CC (Test 44)
IF Amplifier CC (Test 47)
Dynamic Range Performance Test
Internal Test 17
Internal Test 18
Internal Test 19
