Main
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Repairing the HP/Agilent 8922
Book Organization
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6 Troubleshooting the Power Supply
7 Adjustments and Calibration
8 Assembly and Disassembly Procedures
9 Replacing a Part
10 Service Screen
11 Self-Test Error Messages
12 Module I/O Specications
13 Instrument Block Diagrams
14 Block Diagram Theory of Operation
15 Diagnostics Theory
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1-3
Localizing the Problem - Flow Chart (Power-Up)
Figure 1-1 Localizing the Problem - Flow Chart
Localizing the Problem - Flow Chart (Power-Up)
See "Power Up Checks", in this Chapter, for details of the steps given in the ow chart below.
Power-Up Checks
Power-Up Checks
If Power-Up Checks FAILED
Error Message Numbers
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If Power-Up Happened Correctly
If Power-Up Happened Correctly
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Running Memory Card or ROM Based Diagnostics
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Running Memory Card or ROM Based Diagnostics
Selecting Memory Card Diagnostic Test Execution Conditions
Loading and Running the Ram Test
Loading and Running the Ram Test
Loading the RAM Test
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Installing and Operating the Software
Using the Compatibility Switch for the HP/Agilent 8922F/H or M/S
Back Conversion
Forward Conversion
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Using the HP/Agilent 83210A Service Kit Conguring the RF Extender
Configuring the RF Extender
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Using the HP/Agilent 83210A Service Kit Extending Modules
Extending Modules
Making Measurements
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Parallel Bus
Parallel Bus
Serial Bus
Display
Display
Keyboard
Keyboard
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6-3
Power Cord Verication
Continued Over
Power Cord Verification
Use this diagram to verify that the correct line cord is being used. Table 6-1 Line Cords PlugType
Cable Agilent Part Number
C DPlug Description Length,
inches (mm)
Power Cord Verication
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Adjustments and Calibration
Timebase Adjustments
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Periodic Calibrations
Adjustments and Calibration Sum Loop Adjustment Procedure
Sum Loop Adjustment Procedure
Procedure:
First Adjustment
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Recommended Torque
Top and Bottom Cover Removal
Top and Bottom Cover Removal
SIDE VIEW
8-4
Inside Protective Covers
Inside Protective Covers
All covers can be removed with a TX-15 screw driver. Screws shown circled only require loosening.
8-5
AF, Digital and RF Assemblies Removal
AF, Digital and RF Assemblies Removal
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A1 Front Panel Removal
A1 Front Panel Removal
8-8
A1 Front Panel Removal
A1 6
7-11 (A1 Mounting Screws)
RFI Gaskets
A10 Power Supply Regulator Removal
A11 Receiver Mixer Removal
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A12 Pulse Attenuator Removal
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A21 GPIB Interface Removal
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A22 Display Removal
A22 Display Removal
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A23 Input Section Removal
A23 Input Section Removal
A24 Attenuator Removal
A24 Attenuator Removal
A28 Power Supply Removal
A28 Power Supply Removal
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Fan Removal
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Transformer Removal
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Assembly Replacements
Adjustments after Replacing Assemblies
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9-4
Table 9-2 Replaceable Parts
9-5
A1 6
7-11 (A1 Mounting Screws)
RFI Gaskets
9-6
Table 9-3 Replaceable Parts
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9-8
Table 9-4 Replaceable Parts
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9-10
Table 9-5 Replaceable Parts
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9-12
Table 9-6 Replaceable Parts
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9-14
Table 9-7 Replaceable Parts
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9-18
Table 9-8 Replaceable Parts
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9-20
Table 9-9 Replaceable Parts
9-21
9-22
Table 9-10 Replaceable Parts
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9-26
Table 9-13 Replaceable Parts
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9-28
Table 9-14 Miscellaneous Replaceable Parts
Firmware Upgrades
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11-2
Self-Test Error Messages
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A2 Audio Analyzer 2
A2 Audio Analyzer 2
A2 Audio Analyzer 2
A3 Audio Analyzer 1
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A4 Modulation Distribution
A4 Modulation Distribution
A4 Modulation Distribution
A5 Premodulation Filter and NSM
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A5 Premodulation Filter and NSM
Serial I/O
A6 Signaling Source/Analyzer
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A9 Global Test and Demod
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A11 Receiver Mixer
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A11 Receiver Mixer
A13 Output
Inputs2
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A14 Pulse Driver
A14 Pulse Driver
A15 Reference
Hop Control
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A16 Receiver
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A18 Spectrum Analyzer
A18 Spectrum Analyzer
A18 Spectrum Analyzer
A19 Measurement
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A23 Input (HP/Agilent 8922A.B,E,F,G,H) Only
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A23 Input (Agilent 8922M/S Only)
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A25 Sum Loop
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A17, A26 Step Loop
A17, A26 Step Loop
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A27 DAC/Upconverter
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A28 Power Supply
A28 Power Supply
Input
A33 Hop Controller
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Instrument Block Diagrams
Reading the Pin Numbers
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Technical Discussion
Technical Discussion
Block Diagram 1
A23 Input A24 High Power Attenuator
A17 StepLoop B
A11 Receiver Mixer
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A18 Spectrum Aanalyzer
A2 Audio Analyzer 2 A3 Audio Analyzer 1
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Block Diagram 2
A5 Premod Filter and NSM
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A26 Step Loop A
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A12 Pulse Attenuator
A23 Input A24 High Power Attenutor
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Block Diagram 3 HP/Agilent 8922B Only
Block Diagram 3 HP/Agilent 8922B Only
A35 B Reference
A36 FIFO/GPIO
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Block Diagram 4
Block Diagram 4
A31 CODEC A32 GSM Controller A34 GSM RTI
A35 Protocol Interface (HP/Agilent 8922F/HM/S Option 003 Only)
Block Diagram 5
Block Diagram 5
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AF_DIAGS
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RF_DIAGS
RF Generator Step Loop
Sum Loop
Output Section
Pulse Attenuator and Drive
Input Section
RF Analyzer Step Loop
Spectrum Analyzer
Receiver
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MS_DIAGS
GSM and DCS Diagnostic Tests
GSM and DCS Diagnostic Tests
Interpreting Results
Interpreting Results
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GSM Theory The GSM System
The GSM System
GSM Theory E-GSM, DCS1800 and PCS1900 Systems
E-GSM, DCS1800 and PCS1900 Systems
Index-1
Symbols
Numerics
A
Index-2
B
Index-3
C
D
E
F
Index-4
K
L
M
N
Index-5
S
T
V
