RT2047 DSC - PART II
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CONTENTS
1 GENERAL INFORMATION 1-1
1.1 GENERAL DESCRIPTION 1-1
1.2 TECHNICAL DATA 1-2
1.3 CONTROLS 1-3
1.4 PRINCIPLE OF OPERATION 1-5
1.5 BLOCKDIAGRAM 1-7
2 CIRCUIT DESCRIPTION 2-1
2.1 RECEIVER UNIT MODULE 100 2-1
2.2 RX-SYNTHESIZER UNIT MODULE 200 2-4
2.3 TX-EXCITER UNIT MODULE 300 2-8
2.4 TX-POWER AMPLIFIER MODULE 400 2-13
2.5 ANTENNA RELAY (500) 2-13
2.6 INTERFACE UNIT MODULE 6/600 2-17
2.7 KEYBOARD UNIT MODULE 7/700 2-24
2.8 DUPLEX FILTER MODULE 800 2-28
2.9 FILTER UNIT MODULE 9/900 2-29
2.10 MAIN DIAGRAM 2-32
2.11 MICROTELEPHONE INSTALLATION 2-34
2.12 SPECIAL INSTALLATION WITH 2 MICROTELEPHONES 2-35
2.13 SPECIAL INSTALLATION WITH 3 MICROTELEPHONES 2-36
2.14 MECHANICAL DIMENSIONS FOR HANDSET 2-37
2.15 DC POWER SUPPLY N418 2-39
2.16 N420 24V/12V REGULATOR 2-42
3 MECHANICAL DISASSEMBLING AND MODULE LOCATION 3-1
3.1 MECHANICAL DISASSEMBLING 3-1
3.2 MODULE LOCATION 3-3
4 SERVICE 4-1
4.1 MAINTENANCE 4-1
4.2 ADJUSTMENT INSTRUCTIONS 4-1
4.3 PROPOSAL FOR NECESSARY MEASURING INSTRUMENTS 4-1
4.4 CALIBRATION OF THE TEST PROBE 4-2
4.5 PROCEDURE FOR CALIBRATION 4-2
4.6 ADJUSTMENT PROCEDURE 4-3
4.7 TROUBLE-SHOOTING 4-6
4.8 REPLACEMENT OF COMPONENTS 4-6
4.9 REPLACEMENT OF MODULES 4-6
4.10 NECESSARY ADJUSTMENTS AFTER REPLACEMENT OF
A MODULE 4-7
4.11 PIN CONFIGURATION 4-9
4.12 PIN CONFIGURATIONS, BLOCK & SCHEMATIC
DIAGRAMS FOR IC’S 4-10
5 PARTS LIST 5-1
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