Motorola HT 1000 Series - Ntn7620 B Controller Board Schematic Diagram

Motorola HT 1000 Series

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NTN7620B CONTROLLER BOARD SCHEMATIC DIAGRAM 43

INSERT SCHEMATIC

63D81200C44-O (100% BLK.)

SHOOT AT 100%

Table of Contents

Table of Contents2
Model Numbering System5
List of Models6
List of Antennas and Batteries7
Maintenance Specifications for Vhf Radios8
Maintenance Specifications for Uhf Radios8
MAINTENANCE SPECIFICATIONS for 800Mhz RADIOS9
MAINTENANCE SPECIFICATIONS for 900Mhz RADIOS9
Section I. Introduction10
Service Aids11
Recommended and Required Test Equipment, Service Aids, and Tools Lists11
- Recommended Test Equipment11
- Service Aids and Recommended Tools11
- Field Programming11
Recommended Service Tools13
Initial Equipment Control Settings14
Test Environments, HT 1000 Radios14
Section III. Transceiver Performance Testing14
- General14
- Setup14
- Test Mode14
Test Frequencies, HT 1000 Radios15
Test Environments, MT 2000, MTS 2000, and MTX Series Radios16
Receiver Performance Checks17
Transmitter Performance Checks18
Error Code Displays19
- Power-Up Display Codes19
- Operational Display Codes19
Section V. Radio Alignment Procedure20
- General20
- Reference Oscillator Alignment22
- Front-End Pre-Selector (VHF/UHF Only)22
- Rated Audio22
- Squelch22
Standard Test Modulation (1Khz Tone)22
- Transmitter Power23
- Transmit Deviation Balance (Compensation)23
- Transmit Deviation Limit23
Transmit Power Setting23
- Transmit Deviation Limit Reference24
- VCO Crossover Frequency24
- Signalling Deviation24
Transmit Deviation Limit24
Section VI. Disassembly and Reassembly26
- General26
- Disassembly to Board Level26
- Disassembly of Control Top28
- Disassembly of Front Cover Assembly29
- Reassembly30
Section VII. Maintenance32
- Introduction32
- Preventive Maintenance32
- Safe Handling of CMOS Devices32
- Repair Procedures and Techniques32
Nud7070A, Nud7070B, Nud7085A, and Nud7085B Vhf Transceiver Boards' Component Location Diagrams and Schematic Diagram38
- Transceiver Boards' Component Location Diagrams39
NUE7213A, NUE7213B, NUE7231A, NUE7231B, NUE7240A, and NUE7240B UHF (403-470Mhz) TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM40
NUE7213A, NUE7213B, NUE7231A, NUE7231B, NUE7240A, and NUE7240B UHF (403-470Mhz)41
- NUE7241B UHF (450-520Mhz) TRANSCEIVER BOARD COMPONENT LOCATION DIAGRAMS41
NUE7214A, NUE7214B, NUE7232A, NUE7232B, NUE7241A, and NUE7241B UHF (450-520Mhz) TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM42
NUE7214A, NUE7214B, NUE7232A, NUE7232B, NUE7241A, and NUE7241B UHF (450-520Mhz)43
- 800Mhz TRANSCEIVER BOARDS' COMPONENT LOCATION DIAGRAMS43
NUF6394A, NUF6394B, NUF6410A, NUF6410B, NUF6423A, and NUF6423B 800Mhz TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM44
NUF6394A, NUF6394B, NUF6410A, NUF6410B, NUF6423A, and NUF6423B 800Mhz TRANSCEIVER BOARDS44
- Component Location Diagrams45
NUF6395B, NUF6395C, NUF6424A, and NUF6424B 900Mhz TRANSCEIVER BOARDS' SCHEMATIC DIAGRAM46
NUF6395B, NUF6395C, NUF6424A, and NUF6424B 900Mhz TRANSCEIVER BOARDS' PARTS LIST, and NTN7089A/NTN7092A CONTROLLER BOARDS' (JT 1000/HT 1000 MODELS ONLY) COMPONENT LOCATION DIAGRAMS47
Ntn7089A/Ntn7092A Controller Boards' (Jt 1000/Ht 1000 Models Only) Schematic Diagram48
- And Ntn7091A/Ntn7093A Controller Boards' Component Location Diagrams49
Ntn7091A/Ntn7093A Controller Boards' Schematic Diagram50
- Universal (Accessory) Connector Pin Numbers and Signal Assignments, and51
- Ntn7620B Controller Board Component Location Diagrams51
Ntn7620B Controller Board Schematic Diagram52
Ntn7620B Controller Board Parts List, and Ntn7512A, Ntn7513A, Ntn7857A, and Ntn7858A Controller Boards' Component Location Diagrams53
Ntn7512A, Ntn7513A, Ntn7857A, and Ntn7858A Controller Boards' Schematic Diagram54
Ntn7512A, Ntn7513A, Ntn7857A, and Ntn7858A Controller Boards' Parts List, Basic Radio Exploded View Diagram, Top-Display Exploded View Diagram, and Parts List55
Keypad Radio Exploded View Diagram and Parts List56
Integrated Circuits with Pin-Out Names57
Appendix60

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