JRC JHS-7 - Default Chapter; Table of Contents

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TABLE OF CONTENTS
1. GENERAL ····································· 1
1.1 General ································ 1
1.2 Features ······························· 1
1.3 Composition ·························· 1
1.3.1 Standard Components ··········· 1
1.3.2 Option ······························· 1
1.3.3
Optional channel programming ··· 1
2. SPECIFICATIONS ·························· 2
2.1 General ································ 2
2.2 Transmitter ·························· 2
2.3 Receiver ······························· 2
3. OPERATION ·································· 3
3.1 Description ··························· 3
3.2 Operating Procedure ··············· 4
3.2.1 Preparation························· 4
3.2.2 Call ··································· 4
3.2.3 Closing down ······················· 5
3.3
Replacement of Battery Pack
NBB-248/248A and NBB-389 ···· 5
3.4 Handling of Battery Charger
NBA-4141/NBA4141A(Optional) 6
3.4.1 Installation ························· 6
3.4.2 Replacement of Fuse ············· 7
3.4.3
Change of Power Supply Voltage ····· 7
3.4.4
Parallel Wiring of Power Cables ····· 7
3.5 Handling of the Accessories ······ 8
3.5.1 Carrying Strap ···················· 8
3.5.2 Belt Clip ···························· 8
3.5.3
Connecting of the Earphone and
External Speaker/Microphone ···· 8
3.5.4 Lithium Primary Battery ······· 8
4. BATTERY CHARGING ····················· 9
4.1 Period of time to charge ··········· 9
4.2 Precautions on Charging ·········· 9
4.3 Charging Procedure ················ 9
5. MAINTENANCE AND INSPECTION · 10
5.1 Daily Maintenance ················ 10
5.2 Regular Inspection ················ 10
6. TROUBLESHOOTING ···················· 11
6.1 Precautions ·························· 11
6.2 Troubleshooting Guide ············ 11
6.3 Simple Adjustment ··············· 12
6.3.1 Checking of Voltages ··········· 12
6.3.2
Adjustment of the Synthesizer ··· 12
6.3.3 Frequency Adjustment ········· 12
6.3.4 Transmit output Adjustment · 12
6.3.5 Tuning of the Receiver ········· 12
7. OPTIONS ···································· 13
7.1 Battery Charger
NBA-4141/NBA4141A ··········· 13
7.2
Primary Battery Pack NBB-389 ·· 13
7.3 Battery Pack NBB-248 ·········· 13
7.4 Battery Pack NBB-248A ········ 13
7.5 Earphone 6UMJD00004 ········· 13
7.6 External Speaker/Microphone
6UMJD00029 ······················· 13
7.7 Carrying Case MPXP02368 ····· 13
Appended Drawings
Block Diagram
Outline Drawing
Appended Drawing (Optional)
NBA-4141/NBA-4141A
Battery Charger Outline Drawing
6UMJD00004 Earphone Outline Drawing
6UMJD00029 External Speaker/Microphone
Outline Drawing