Table of Contents
Advertisement
LIST
OF ILLUSTRATIONS
Figure
Title
Page
1.1
Model 1994
Universal
Timer/Counter
ix
2.1
Fixed-Mount Angle-Bracket
Detail
.2-2
2.2
Rear Corner
Foot, Side Panel,
and Handle DetaiF
2-4
2.3
Loading
the
Alignment
Blocks
2-4
2.4A/B
Slide-Mount and Bracket Assembly
2-6
2.5
Rear End Slide-Mount Rack Dimensions
2-8
2.6
Slide
Mount
and Instrument
Assembly
(with
inset)
2-10
2.7
Options
04A/04Eand
10
Installation
2-13
2.8
Option
41
Installation
2-15
2.9
AC
Line Voltage Selection
2-16
3.1
Trigger Level Setting
3-35
3.2
Use of Stop
Arm
Delay
3-39
3.3
Special Function Register Display
3-41
4.1
GPIB
Connector (Rear
Panel)
4-1
4.2
Interface Signal Pin
Assignments
4-2
4.3
Handshake Sequence
,,...4-6
4.4
Handshake Flow
Chart
4-7
5.1
Simplified Overall Block
Diagram
5-2
5.2
Channel
A/B
Block
Diagram
5-3
5.3
Channel
C
Block
Diagram
5-5
5.4
Measurement
-
Block
Diagram
5-7
5.5
Basic
Recipromatic Counting Technique
5-8
5.6
Display
-
Block
Diagram
5-11
5.7
Keyboard
-
Block
Diagram
5-13
5.8
Microprocessor
-
Block
Diagram
5-14
5.9
Standby and
IRQ
Block
Diagram
.5-16
5.10
Power-Supply
-
Block
Diagram
5-19
5.11
Internal
Frequency
Standard Block
Diagram
5-20
6.1
A
Fault Finding
Flowchart
6-8
6.2
GPIB
Troubleshooting Flowchart
6-16
6.3
Location
of
R149
and
R192
6-20
6.4
Connections
for
Input
A
System Adjustment
6-21
6.5
Location
of
R150
and
R193
6-22
6.6
Connections
for
Input
B System Adjustment
6-22
6.7
Connections
for
Input
C
Assembly Adjustment
6-23
6.8
Connections
for
Internal
Frequency Standard Adjustment
6-24
6.
9
A
Connections
for
Input
A
Sensitivity
PVP
(D
6-26
6.9B
Connections
for
Input
A
Sensitivity
PVP
(II)
6-27
6.
10
A
Connections
for
Input
B
Sensitivity
PVP
(I)
6-28
6.10B
Connections
for
Input
B
Sensitivity
PVP
(EL)
6-28
6.11
Connections
for
Input
C
Sensitivity
PVP
6-29
6.12
Connections
for
10
MHz
Standard
Output
Level
PVP
6-31
6.13
Connections
for
Minimum
Time
Interval
PVP
6-31
6.14
Connections
for
External
Arming
PVP
6-32
6.15
Connections
for
Trigger Level
PVP
(I)
6-33
6.16
Trigger Level
Waveform
6-33
6.17
Connections
for
Trigger Level
PVP
(n)
6-34
6.18
Connections
for
Internal
Frequency Standard
PVP
6-35
vii
Advertisement
Table of Contents
