Chapter 4
113
Troubleshooting
Performance test failure troubleshooting
4. T
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Adjustment failure troubleshooting
Table 4-4 represents the relationships between the failed adjustment and probably faulty
assembly. Note that this table lists some typical cases. There are possibilities that another
assembly may be faulty.
###: Most suspicious assembly
##: Suspicious assembly
#: Possible faulty assembly
Performance test failure troubleshooting
Table 4-5 represents the relationships between the failed test and probable faulty assembly.
If the performance test failure cannot be removed by a proper adjustment, replace the
assembly shown in this table.
Note that this table lists some typical cases. There are possibilities that another assembly
may be faulty.
NOTE
When RF IN Port VSWR test fails, check first whether the connections of the RF
semi-rigid cables between the suspicious assembly and others are tight or loose. Also
Table 4-4
Adjustment failure troubleshooting information
Adj
Num.
First failed adjustment
Probable faulty board assembly
A1 A2 A3
A4/5
A6
1
DC Control Voltage
###
2
DC Power Voltage
###
3
DC Power Current
###
##
4
Reference Frequency
#
###
5
Pre-LO Sampler PLL BW
###
6
Receiver DC offset
#
###
7
PM Offset
###
8
PM Linearity
###
9
PM Temp
###
10
PM Flatness
###
11
Receiver RF Flatness
#
##
#
###
12
Receiver IF Gain/Flatness
##
#
###
13
LO Sampler PLL BW
#
##
#
###
14
Phase Noise BW
#
###
#
Summary of Contents for E5052A
Page 13: ...Contents 13 M 271 N 271 O 271 P 271 R 272 S 273 T 273 U 273 ...
Page 14: ...14 Contents ...
Page 22: ...22 Chapter1 General Information Required Equipment ...
Page 46: ...46 Chapter2 Performance Tests Individual Test Description Step 17 Turn off the power of AMP2 ...
Page 82: ...82 Chapter3 Adjustment Required Adjustment after Replacing Assembly ...
Page 218: ...216 Chapter6 Replacement Procedure A51 LCD Replacement Figure 6 27 A51 LCD Removal ...
Page 222: ...220 Chapter6 Replacement Procedure BNC Connector front Replacement ...
Page 244: ...242 AppendixB System Recovery Calibration of the Touch Screen ...
Page 250: ...248 AppendixC Firmware Update Firmware Update ...
Page 261: ...259 E Power Requirement E Power Requirement ...