Printed in U. S. A. Maintenance Manual LBI-38557 LBI-38557 TABLE OF CONTENTS Page INTRODUCTION... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . . 1 DISASSEMBLY PROCEDURE . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . ... . . 1 TOOLS NEEDED. ... . ... .

. . . . . . . . . . . . . . . LBI- 38849 SYSTEM BOARD . . . . . . . . . . . . . LBI- 38842 AUDIO/LOGIC BOARD . . . . . . . . . . LBI- 38843 AUDIO AMPLIFIER BOARD . . . . . . . LBI- 38844 FRONT CAP ASSEMBLY . . . . . . . . . LBI- 38850 LBI- 38974 PA BOARD . . . . . . . . . . . . . . . . . LBI- 38302 SERVICE SECTION . . . . . . . . . . . . LBI- 38851 DUAL FORMAT MDXO RADIO ASSEMBLY ISSUE 1 SYMBOL PART NUMBER DESCRIPTION APPLICATION ASSEMBLY 19D904183 — — — — ASSEMBLIES — — — A1 19D902123G22 RF BOA

This operator’s manual contains detailed operating procedures for the Select, Scan and System model radios. OPERATING TIPS Antenna location and condition is important when using a VHF radio. Operating the radio in low areas of terrain, under power lines or bridges, inside of a vehicle or in a metal or steel framed building can severely reduce the range of the unit Mountains and buildings can also reduce the range of the unit. In areas where transmission or reception is poor, some improvement may

Proper operation of this radio will result in user exposure far below the Occupational Safety and Health Act and Federal Communication Commission limits. DO NOT hold the radio in such a manner that the antenna is close to, or touching, exposed parts of the body -- especially the eyes or face --while the radio is transmitting. DO NOT operate the radio near unshielded electrical blasting caps or in an explosive atmosphere, unless it is a type specifically designed and qualified for such use. DO NO

17 Page Volume Adjust .............................. 17 IMPORTANT SAFETY EDACS OPERATION........................... 17 INFORMATION ........................................ 4 System Selection- SAFETY INFORMATION ......................... 5 Ramping Names ......................... 17 System Selection- OPERATING PROCEDURES.................. 6 Direct Number Entry ............................................ 18 INTRODUCTION...................................... 8 Group Selection- Ramping Names .......

NOTICE! This manual covers Ericsson and General Electric products manufactured and sold by Ericsson Inc. NOTICE! The software contained in this device is copyrighted by Ericsson Inc. Unpublished rights are reserved under the copyright laws of the United States. This manual is published by Ericsson Inc., without any warranty. Improvements and changes to this manual necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made

Messages cannot be received when the PTT bar is pressed. 32 6. When the call is complete, double click the SHIFT/CLR button to exit the Special Call mode and return to the normal system/group display. Storing Individual And Interconnect Numbers 1. Press the SPC key to put the radio into Special Call mode. The SYStem field will display "SP" and the GRP (Group) field will display the last accessed call number from the preprogrammed Special Call list. The "S" and "PC" icons will also be illuminated

NOTICE! Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any repairs, alterations or substitution of recommended parts made by the user to this equipment not approved by the manufacturer could void the user’s authority to operate the equipment in addition to the manufacturer’s warranty. NOTICE! The software contained in this device is copyrighted by Ericsson Inc. Unpublished rights are reserved under the copyright laws of t

EXTENDED OPERATIONS When operating in "Fringe Areas" at some distance from the System, the other party may not receive your transmission clearly. Also, you may notice that the background noise will increase on received signals. Moving to higher ground or moving closer to the System will help alleviate these problems. If moving closer to the System is not practical, communication may be improved by moving away from shielding structures. If you are in a building interior, move closer to a window (

. . . . . . . . . . . LBI- 30032 (DF1107) OSCILLATOR/MULTIPLIER BOARD . . . . . . . . . . . . . . . . . . . . LBI- 30029 (DF1106) IF AUDIO AND SQUELCH BOARD . . . . . . . . . . . . . . . . . . . . LBI- 38507 Ericsson Inc. Private Radio Systems Mountain View Road Lynchburg, Virginia 24502 ericsson . 1- 800- 528- 7711 (Outside USA, 804-528-7711) Printed in U. S.A. LBI- 38505 LBI- 38505 TABLE OF CONTENTS Page SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .