Assembly Replacement and Post-Repair Procedures
Post-Repair Procedures
Replaced Assembly
A11 Phase Lock
A12 Reference
A13 Fractional-N
(Analog)
A14 Fractional-N
(Digital)
A15 Preregulator
A16 Rear Panel Interface
A17 Motherboard
A18 Display
A19 Graphics System
Processor
A51 Test Set Interface
A53 Low Band Assembly
A54 YIG2 20–40 GHz
(8722ET/ES)
A55 YIG1 2.4-20 GHz
A56 LED Board
A57 Fixed Oscillator
A58 M/A/D/S
A59 Source Interface
A60/61 DC Bias Tees
14-36
Adjustments / Correction
Constants (CC)
A7 Switch Positions
Analog Bus CC (Test 44)
Source Pretune (Tests 43)
Reference Assembly VCO Tune
A7 Switch Positions
Analog Bus CC (Test 44)
Fractional-N Spur Avoidance and
F M Sideband Adjustment
A7 Switch Positions
Analog Bus CC (Test 44)
None
None
None
None
None
None
Output Power Adjustments
Power Linearity Adjustments
Source Pretune CC (Test 43)
Output Power Adjustments
Power Linearity Adjustments
Source Pretune CC (Test 43)
Output Power Adjustments
Power Linearity Adjustments
None
Output Power Adjustments
Power Linearity Adjustments
Output Power Adjustments
Power Linearity Adjustments
Output Power Adjustments
Power Linearity Adjustments
Output Power Adjustments
Power Linearity Adjustments
RF Network Analyzers
Verification
Frequency Accuracy Performance Test
Frequency Accuracy Performance Test
Internal Test 20
Frequency Accuracy Performance Test
Internal Test 20
Frequency Accuracy Performance Test
Internal Test 0
No test available
Internal Test 0
Internal Tests 62–76
Internal Tests 55−76
Op Ck Port1 (Test 21)
Op Ck Port2 (Test 22)
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
Observe LEDs when switching from
S11 to S22
Frequency Accuracy Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
Level Accuracy Performance Test
Source Linearity Performance Test
Level Accuracy Performance
Source Linearity Performance Test
8719ET/20ET/22ET
8719ES/20ES/22ES
Service Guide