Agilent Technologies 4395A, Service Manual

Page: 287 / 343

11
P ost Repair Procedures
INTRODUCTION
This c hapter lists the pro cedures required to v erify the analyzer op eration after an assem bly is
replaced with a new one.
POST REP AIR PROCEDURES
T able 11-1 Post R ep air Pr o c e dur es lists the required pro cedures that m ust b e p erformed after
the replacemen t of an assem bly or the EEPR OM. These are the recommended minimum
pro cedures to ensure that the analyzer is w orking prop erly follo wing the replacemen t.
When y ou replace an assem bly or the EEPR OM on the A1 CPU, p erform the adjustmen ts
and up dating correction constan ts listed in T able 11-1. Then p erform the op erational
v erications and p erformance v erications listed in T able 11-1.
F or the detailed pro cedure of the adjustmen ts and up dating correction constan ts, see the
A djustments c hapter. F or the detailed op erational v erication pro cedures, see this man ual's
c hapter sp ecied in T able 11-1 . F or the detailed p erformance v erication pro cedures, see the
Performanc e T ests c hapter.
T able 11-1. P ost Repair Procedures
Replaced
Assembly or P art
Adjustments
Correction Constants
V erication
A1 CPU Firm w are Installation.
1
INSPECT THE PO WER ON SEQUENCE
2
Internal T est 2: A1 V OLA TILE MEMOR Y
2
A1 EEPR OM Lo cal D A C Adjustmen t INSPECT THE PO WER ON SEQUENCE
2
Source P ow er Adjustmen t All P erformance T est Items
Source Flatness Adjustmen t
IF 8 dB/16 dB Gain Adjustmen t
IF Gain Error CC
T emprature Adjustmen t
Receiv er Flatness Adjustmen t
Receiv er A ttnuator Adjustmen t
IF BPF Flatness Adjustmen t
DC Bias Adjustmen t
1 See the Digital Contr ol T r oublesho oting c hapter.
2 See the T r oublesho oting c hapter.
P ost Repair Procedures 11-1