Service ESG-D Series Option H98 Signal Generators
Replaceable Parts
6-2 Manual Supplement
Replaceable Parts
For Option H98, the following parts change from the standard instrument:
• A7 Baseband Generator Board part number changes to E4400-60070.
• A8 Data Generator Board part number changes to E4400-60154.
Post Repair Procedures
NOTE If an assembly other than the A7 Baseband Generator Board or the A8 Data
Generator Board is repaired or replaced, refer to the ESG Family Signal
Generators Service Guide for the adjustments and performance tests required
for that assembly.
Adjustments
If the A7 Baseband Generator Board is repaired or replaced, perform the I/Q Gain/Offset
Quadrature adjustment.
No adjustments are required after the A8 Data Generator Board is repaired or replaced.
Performance Tests
NOTE Refer to the ESG Family Signal Generators Calibration Guide for information
on using the service software.
Option H98 Only
If either the A7 Baseband Generator Board or the A8 Data Generator Board is repaired or
replaced, the following three automated performance tests are required:
• Nonharmonics
• Digital Mod: Internal I/Q Quality
• Relative Power Level Accuracy
With Option H99
If the instrument also has Option H99, and the A7 Baseband Generator Board is repaired
or replaced, perform the following additional automated performance test, located in the
ESG-D Series Option H99 Signal Generators Manual Supplement:
• WCDMA ACP (H99)
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