Keysight Technologies N5261A, Руководство пользователя и сервисное руководство

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Service Information
Test and Adjustment Procedures
The “ Test Set Operation Check ” on page 68 should be performed
whenever any active electronic part is replaced in the test set.
Additional procedures are required when certain components are
replaced. Table 2-4 indicates when additional procedures are required. The
additional procedures depend on the location of the replaced component.
The additional procedures are indicated as A, B, C, D, F, Q, R, S and Z
in Table 2-4 .
The procedures referenced above may be found on the following pages. Many
of the steps require familiarity with the “Preparation” section beginning on
page
68
.
Table 2-4 Additional Required Procedures for Assemblies Replaced
Description of the Replaced
Component
Keysight
Part Number
Location:
Ports 1 & 2
RF Section
1
Location:
Ports 3 & 4
RF Section
1
Location:
LO Section
General
Location
Millimeter Head Interface Bd N5261-60101 Z
Test Set Controller Bd N5261-60006
C
2
D
RF/LO Bias/ALC Bd N5261-60103 Q R S
Preamplifier Bias Bd N5261-60104 S
RF 4-way Divider N5262-80003 S
RF Detector 3333-80021 Q R S
Coax Cable, Sloped
Attenuator
N5262-20033 Q R
Preamplifier 5087-7750 S
RF/LO Amplifier 5087-7771 Q A D R B D S
RF Directional Coupler 0955-0148 Q A D R B D S
RF Switch, SPDT Solid State 5087-7733 Q A D R B D
1.
Refer to Figure 2-2 thru Figure 2-5 and Figure 2-8 thru Figure 2-11 to determine part location.
2. Procedure “C” must be done before removing the “old” board.
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Keysight N5261/62A User’s & Service Guide