Raymarine R20 - Page 8

Telep.
3.7.2
3.7.3
3.7.4
3.7.5
3.7.6
3.7.7
SECTION 4
4.1
4.2
4.2.1
4.2.2
4.2.3
4.2.4
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.4
4.5
4.6
4.6.1
4.6.2
4.6.2.1
4.6.2.2
4.6.2.3
4.6.2.4
4.6.2.5
4.6.2.6
4.6.2.7
4.6.2.8
4.6.2.9
4.6.2.10
4.6.3
4.6.4
4.6.5
SECTION 5
5.1
5.1.1
5.2
5.2.1
5.2.2 .
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
TABLE OF CONTENTS (cant.)
ACQUISITION OF TARGETS 3-48
CANCELLING THE TARGET 3-48
MARPA READOUT PANEL 3-49
MARPA DEFAULT
SETIINGS 3-49
MARPA SYMBOLS 3-50
MARPA ALARMS 3-51
TECHNICAL DESCRIPTION
GENERAL 4-1
RADOME ANTENNA UNIT 4-1
RADIATOR 4-1
RADIATOR ROTATING MECHANISM 4-3
MOTOR-ENCODER 4-3
BEARING RESET SWITCH 4-3
OPEN ARRAY ANTENNA UNIT 4-3
RADIATOR 4-3
RADIATOR ROTATING MECHANISM 4-4
MOTOR-ENCODER 4-4
BEARING RESET CIRCUIT 4-4
TRANSMITIER UNIT 4-6
RECEIVER UNIT
;· 4-7
DISPLAY UNIT 4-11
SIMPLIFIED BLOCK DIAGRAM 4-11
MAIN CONTROL PCB 4-11
VIDEO INPUT CIRCUITRY 4-11
AID CONVERTER 4-11
MAIN LSINIDEO PROCESSOR 4-11
SAMPLE CLOCK GENERATOR .4-11
BUFFER MEMORY 4-12
VIDEO MEMORY 4-12
CONTROL PCBS 4-12
GCM (GRAPHIC CONTROL MEMORY) 4-13
VIDEO OUTPUT 4-13
DISPLAY MONITOR 4-13
OPTIONAL INPUTS 4-14
POWER SUPPLY (CBD-1167) 4·15
MARPA PCB (CDC-780) [Optional] 4-15
MAINTENANCE
GENERAL 5-1
PRODUCT AND CUSTOMER SERVICE 5-1
PREVENTIVE MAINTENANCE 5-2
HIGH VOLTAGE ARC PREVENTION 5-2
INSPECTION (MONTHLY INTERVALS) 5-2
CLEANING (MONTHLY INTERVALS) 5-2
LUBRICATION 5-3
CONNECTOR MAINTENANCE (ANNUAL INTERVALS) 5-4
GASKET MAINTENANCE (ANNUAL INTERVALS) 5-5
ANT. PED. BRUSHES REPLACEMENT (ANNUAL) 5-6
BATIERY REPL. (CMC-739) (EVERY 2 YEARS) 5-8
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