TECHNICAL MANUAL FOR COMPACT VHF DSC RM2042

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3 SERVICE <strong>RM2042</strong>3.10 PIN CONFIGURATIONSDIODE:BAT54S (SOT-23 CASE)23 2113TRANSISTOR:BC848B, BC858B, BFR92A (SOT-23 CASE)BF996SB (SOT-143 CASE)BCP52-16, BCP55-16 (SOT-223 CASE)CCDCCCEBBNPNEBPNPEG2G1DSG2G1SCECBBNPNEBPNPETIS88 (SOT-23 CASE)Source 1Gate 2Drain 3Top view213VOLTAGE REGULATOR and CONVERTER:7805 (TO-220 CASE)78M05 (DPAK PACKAGE)78L05 (SO-8 PACKAGE)4OUTPUT18INPUTinputGNDoutput1 2 31input output3GND2, 4COMMONCOMMONNC2 73 64 5COMMONCOMMONNC1output input3GND2, 3, 6, 7inputGNDoutputLP2951 (SO-8 PACKAGE)OUTPUT18INPUTSENSE27FEED BACKSHUTDOWN365V TAPGND45ERRORLTC1044 (SO-8 PACKAGE)BOOSTCAP+GNDCAP-1 82 73 64 5VDDOSCLVVDPAGE 3-129403
3 SERVICE <strong>RM2042</strong>INTEGREATED CIRCUIT, ANALOG:LM324 (SO-8 PACKAGE)LM339 (SO-8 PACKAGE)MC3372 (SO-16 CASE)OUTPUT 41441INPUT 4 --++-INPUT 4 +GNDINPUT 3 +INPUT 3 --+3+ 2 -OUTPUT 313 12 11 10 9 81 2 3 4 5 6 71 2 3 4 5 6 7OUTPUT 314OUTPUT 413GND4112+-+ -INPUT 4 +11INPUT 4 -1032INPUT 3 ++ - +-9INPUT 3 -8IF INPUT16GND1514Squelch Triggerwith HysteresisOscillatorMUTEMixerMETER13SQUELCH12LimiterAmpFILTER OUT11FilterAmpFILTER IN1 2 3 4 5 6 7+-109AFAmpDemodulator10pF53kAF OUT8OUTPUT 1INPUT 1 -INPUT 1 +V CCINPUT 2 +INPUT 2 -OUTPUT 2OUTPUT 2OUTPUT 1V CCINPUT 1 -INPUT 1 +INPUT 2 -INPUT 2 +X-TALX-TALIF OUTPUTVCCLIMITER INDECOUPLIMITER OUTQUAD INTDA7052 (DIL-8 PACKAGE)VDD1VDD 1 8INPUTGROUNDNC2 73 64 5OUTPUT 2NCGROUNDOUTPUT 1INPUTGROUND2358OUTPUT 1OUTPUT 26GNDMSM6927 (24-LEAD FLAT-PACK)9403PAGE 3-13
Page 1: TECHNICAL MANUALFORCOMPACT VHF DSC
Page 5: RM2042CONTENTS1 INTRODUCTION1.1 GEN
Page 9 and 10: RM20421 INTRODUCTIONThe RM2042 VHF
Page 11 and 12: 1 INTRODUCTION RM20421.2 TECHNICAL
Page 13 and 14: 1 INTRODUCTION RM2042LASTThis butto
Page 15: 1 INTRODUCTION RM2042MICROPROCESSOR
Page 19: RM2042CONTENTS2 INSTALLATION2.1 MOU
Page 22 and 23: 2 INSTALLATION RM2042H2067 MOUNTING
Page 24 and 25: 2 INSTALLATION RM2042This mounting
Page 27 and 28: 2 INSTALLATION RM20422.5 ELECTRICAL
Page 29: RM2042CONTENTS3 SERVICE3.1 MAINTENA
Page 32 and 33: 3 SERVICE RM20423.3 PROPOSAL FOR NE
Page 34 and 35: 3 SERVICE RM2042CHECK OF RECEIVER S
Page 36 and 37: 3 SERVICE RM2042CHECK OF TX AF DIST
Page 38 and 39: 3 SERVICE RM20423.6.3 ADJUSTMENT OF
Page 40 and 41: 3 SERVICE RM20423.9 NECESSARY ADJUS
Page 44 and 45: 3 SERVICE RM2042INTEGREATED CIRCUIT
Page 46 and 47: 3 SERVICE RM204271055/NEC & 82C55/O
Page 48 and 49: 3 SERVICE RM204274HC32 (SO-14 PACKA
Page 51: RM2042CONTENTS4 MECHANICAL DESCRIPT
Page 55: RM2042CONTENTS5 CIRCUIT DESCRIPTION
Page 58 and 59: 5 CIRCUIT DESCRIPTION AND SCHEMATIC
Page 85: RM2042CONTENTS6 MICROTELEPHONE INST
Page 88 and 89: 6 MICROTELEPHONE INSTALLATION RM204
Page 90 and 91: 6 MICROTELEPHONE INSTALLATION RM204
Page 92 and 93:
6 MICROTELEPHONE INSTALLATION RM204
Page 95 and 96:
RM20427 PARTS LISTVHF DSC RM2042 SA
Page 97 and 98:
7 PARTSLIST RM2042POSITION DESCRIPT
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