Table of Contents
Advertisement
HP 85027A/B/C Adjustments
SECTION 5
ADJUSTMENTS
INTRODUCTION
You do not have to make any adjustments to the HP 85027 for regular calibration or
normal use. However, if you repair or replace the internal bridge microcircuit assembly
(Al) or the circuit board assembly (A2), you must make the following adjustments to
match the preamplifier to the characteristics of the microcircuit. Additionally, if the HP
85027 does not pass one of its performance tests you may need to perform the
adjustments in this section.
ADJUSTMENT PROCEDURES
POS Z BLANK
POS Z BLANK
SWEEP OUT/IN
STOP
SWEEP
PULSE
IN *
.. .~s.
aoc
§°jjjg 1
» * aa a aao caaao a
mumaa
w
o-
aaci
| q • oaaa aoc
aaao O
4° 2J
SWEEP
OSCILLATOR
RF
OUT
* ONLY REQUIRED
IF
HP
8350B HAS
SERIAL
PREFIX
2436 OR BELOW.
8757A SYSTEM
INTERFACE
RF
PLUG-IN
STEP ATTENUATOR
u
SWEEP
IN 0-10V
STOP SWEEP
MODULATOR
POWER SENSOR
h—-ot
NOT
TERMINATED
BRIDGE
NETWORK
ANALYZER
POWER METER
o
aoa a a
§
a
®
• ®
O
n □ o c
□ aoc
o o o
Figure 5-1. Adjustment Setup
Note: to perform the following adjustments refer to Figure 5-2 for the locations of the
adjustment potentiometers.
5-1
Advertisement
Table of Contents
