Motorola R-2001A Service Manual page 5

Communications system analyzer
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Paragraph
7-1
General .................................................................................. 7-1
7-2
Input Power Control ...................................................................... 7-1
7-6
DC Output Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7-9
Protection C i r c u i t r y
7-13 High Voltage Supply Control .............................................................. 7-2
8-1
General .................................................................................. 8-1
8-2
Deflection Amplifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8-3
Horizontal Timebase Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8-5
Horizontal S w i t c h i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
8-6
Intensity Control ......................................................................
8-8
Focus Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8-9
Astigmatism, Geometry, and Trace Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1
9-1
General
................................................................................. 9-1
9-4
Scope Vertical C o n t r o l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9-7 SSB D e t e c t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9-8
455 kHz PLL ............................................................................ 9-2
9-9
Scope Horizontal Control ................................................................. 9-2
9-11 Synthesizer Sweep C o n t r o l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
9-12 Scope Z-Axis C o n t r o l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
9-13 Modulation Display Control .............................................................. 9-2
9-17 Peak Detector ............................................................................ 9-3
9-18 DVM Control ............................................................................. 9-3
9-21 SINAD Detection ....................................:.................................... 9-4
9-22 Module
C o n t r o l
10-1 General ................................................................................ 10-1
10-2 Down C o n v e r t e r
10-4 Linear IF Amplifier and Detectors ............................................................. 10-1
10-8 Audio Switching and Filtering .......................................................... 10-1
10-10 Logarithmic Amplifier and
10-11 Alarm Generator and Audio
10-12 Module
C o n t r o l
11-1
General ................................................................................. 11-1
11-2 Frequency Synthesis Scheme ........................................................... 11-1
TABLE OF CONTENTS (CONT)
SECTION 7 - LOW VOLTAGE POWER SUPPLY (A1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 8 - SCOPE AMPLIFIER (A2)
SECTION 9 - SCOPE/DVM CONTROL MODULE (A3)
.......................................................................... 9-4
SECTION 10 - RECEIVER (A4)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
...................................................... 10-2
D e t e c t o r
A m p l i f i e r .
......................................................................... 10-2
SECTION 11 - RF SYNTHESIZER (A5)
.................................................... 10-2
iii
Page
7-1
7-1
8-1
8-1
10-1

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