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Measuring Instruments
4328A
HP 4328A Service Manual
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Model
4328A
Reference
Desi!mation
A3CR315
A3CR316
A3CR317
A.3CR318
A.3CR319
A.3CR320
A.3CR321
A.3CR322
A.3CR323
A.3Q1-
A3Q300
A.3Q301
A.3Q302
A.3Q303
A.3Q304
A3Q305
A3Q306
A3Q307
A3Q308
A3Q309
A3Q310
A3Q311
A3Q312
A3Q313
A3Q314
A3Q315
A3Q316
A3Q317
A3Q318
A3Q319
A3R1-
A3R300
A3R301
A3R302
A3R303
A3R304
A3R305
A3R306
A3R307
A3R308
A3R309
I
I
A3R310
A3R311
A3R312
•
A3R313
A3R314
L,,
Table
6-2,
Reference
Designation
Index
(Cont'd)
Stock
No.
Description
1910-0016
SEMICON
DEVICE:
DIODE
GERMANIUM
HH0-0016
SEMICON
DEVICE:
DIODE
GERMANIUM
1910-0016
SEMICON
DEVICE:
DIODE
GERMANIUM
1910-0016
SEMICON
DEVICE:
DIODE
GERMANIUM
1910-0016
SEMICON
DEVICE:
DIODE
GERMANIUM
1902-3129
SEMICON
DEVICE:
DIODE
BREAKDOWN
7.
5V
200
400mW
1902-3150
SEMICON
DEVICE:
DIODE
BREAKDOWN
9.
09V
2o;'J
400mW
1902-0559
SEMICON
DEVICE:
DIODE
BREAKDOWN
6.
19V
2%
1
W
1902-0559
SEMICON
DEVICE:
DIODE
BREAKDOWN
6.
19V
2%
1
W
NOT
ASSIGNED
1854-0854
TRANSISTOR:
SILICON
1853-001C
TRANSISTOR:
PNP
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR:
SILICON
1853-0010
TRANSISTOR::
PNP
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR:
SILICON
1853-0071
TRANSISTOR:
SILICON'
1853-0071
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR:
SILICON
1854-0854
TRANSISTOR:
SILICON
NOT
ASSIGNED
0683-2735
R:
FXD
COMP
27kr.l
5':1Q
1
/4W
0683-3045
R:
FXD
COMP
300k0
500
1/4W
0683-1045
R:
FXD
COMP
100kn
500
1/4W
0683-1035
R
FXD
COMP
10kr.l
5':1Q
1/4W
0683-6225
R:
FXD
COMP
6.
2k0
5%
1/4W
2100-3212
R:
VAR
20011
10%
1
/2W
0698-3441
R:
FXD
MET
FLM
215r.l
100
1,'8W
04328-8613
R:
FXD
W.
W.
750mr.l
200
0683-5625
R
FXD
COMP
56000
5%
1/4W
0683-6225
R:
FXD
COMP
6.
2kr.!
5%
1/4W
0683-6225
R
FXD
COMP
6.
2kr.!
5%
1/4W
0683-2735
R:
FXD
COJYIP
27kr.l
5':7[,
1./4W
0683-1235
R:
FXD
COMP
12kr.l
500
1/4W
0683-5125
R:
FXD
COMP
5.1kn
500
1/4W
See
hst
of
abbreviations
in
introduction
to
this
section
Section
VI
Table
6-2
6-7
46
48
Table of Contents
Table of Contents
10
General Information
12
Description
12
Accessories Furnished
12
Instrument Identification
13
Manual Changes
13
Installation
14
Introduction
14
Unpacking and Inspection
14
Environment
14
Combining Case
14
Adapter Frame
14
Power Connection
14
Line Voltage
14
Power Cable
14
Operation
15
Introduction
15
Battery Operation
15
Instrument Temperature Range
15
Measurement
15
Operating Procedure
15
Measuring Voltage on Samples
15
Front Panel Controls and Connectors
16
Rear Panel Controls and Connectors
17
Operating Procedure
18
Samples
19
DC Bias Superimposed
19
Recorder Output
19
Probe Connection
19
General
19
On Samples and Maximum Power
19
Probe Installation
20
16005A Clip-Type Probe
20
16006A Pin-Type Probe
20
16007A B Test Leads
20
Notes on Operation
20
In Using the 1 and 3M Ohm
20
Positive Contact
20
16005A Clip-Type Probes
20
16006A Pin-Type Probes
20
Changing Test Lead Length
21
4-Terminal Device Measurement
21
Theory of Operation
22
Introduction
22
Simplified Functional Description
22
20Mv Peak Limiter
23
Phase Sensitive Voltmeter
23
Operation of Phase Detector
23
Model 4328A Oscillator Talking Schematic
26
Model 4328A Phase-Sensitive
28
Model 4328A Power Supply Talking Schematic
30
Talking Schematic
32
Maintenance
33
Contents
33
Performance Checks
33
Adjustments
33
Test Equipment
33
Maintenance
34
4328A Performance Checks
34
Mechamcal Meter Zero
34
Linearity Check
34
Full Scale Check
34
Cover Removal and Replacement
34
Top Cover Removal
34
Top Cover Replacement
34
Linearity Test
34
Bottom Cover Removal
35
Bottom Cover Replacement
35
Adjustment Procedures
35
Mechanical Meter Adjustment
35
DC Power Supply Check
35
Bias Adjustment
35
T302 Adjustment
35
Oscillator Output Adjustment
35
Electrical Zero Adjustment
35
Power Supply Test
35
Full Scale Adjustment
36
Recorder Output Adjustment
36
Reactance Component Offset Adjustment
36
Transistor Biasing Characteristlcs
36
Isolating Trouble in Transistor Circuits
37
General
37
In Circuit Testing
37
Out-Of-Circuit Testing
37
Component Replacement M Etched Circuits
37
Axial-Lead Components
37
Other Components
37
Out-Of-Circuit Transistor Resistance
38
Resistance Measurements
38
Etched Circuit Soldering Equipment
39
Impedance
39
Replaceable Parts
41
Introduction
41
Reference Designation Index
42
Manual Changes and Options
53
Options
53
Manual Changes
53
Later Instruments
53
Earlier Instruments
53
Partial Schematic of A2 Ass'y
54
Diagrams
61
Introduction
61
Troubleshooting
61
Schematics
61
Schematic Diagram Notes
62
Overall Block Diagram
67
Model 4328A Waveforms
68
4328A Overall Troubleshootmg
70
Model 4328A Left Internal View
74
Schmitt Trigger P,'O A3 Troubleshooting
76
Flip-Flop P/0 A3 Troubleshooting
81
Troubleshooting
85
Model 4328A Right Internal View
86
Model 4328A Top Lnternal View
86
AC Amplifier P/0 A2
87
Phase Detector and DC Amplifier P/0 A2 Troubleshooting
87
Model 4328A Power Supply PC Board
92
Power Supply Troubleshooting
93
Model 4328A Ni-CD Power Supply PC Board
98
Ni-CD Power Supply Troubleshooting
100
Oscillator Assembly A3 Component Locations
103
Range Switch Assembly A4
103
Component Locations
109
A2 Component Locations
109
Mother Board Assembly A5
109
Phase Sensitive Amplifier Assembly
109
Power Supply Assembly al
115
Ni-CD Power Supply Assembly A6 Component Locations
121
5
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HP 4328A Specifications
General
Brand
HP
Model
4328A
Category
Measuring Instruments
Language
English
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