TABLE OF CONTENTS (CONT’D)
iv
Revised July 1999
Part No. 001-7500-002
LIST OF FIGURES
1-1
Option Unit Installation . . . . . . . . . . . . . . . . . . . 1-3
1-2
Two-Tone Decoder Adjustment Points . . . . . . . 1-4
1-3
Chassis Removal . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1-4
Main Unit Removal From Chassis . . . . . . . . . . . 1-6
3-1
Programming Setup . . . . . . . . . . . . . . . . . . . . . . 3-1
3-2
Memory Channel Screen (PMR Models) . . . . . 3-15
4-1
Second IF and Demodulator Circuits . . . . . . . . . 4-2
4-2
APC Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4-3
PLL Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
5-1
Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2
Screen Display Example . . . . . . . . . . . . . . . . . . . 5-2
5-3
VHF Adjustment Points . . . . . . . . . . . . . . . . . . . 5-4
5-4
UHF PLL Adjustment Points . . . . . . . . . . . . . . . 5-7
5-5
UHF Adjustment Points . . . . . . . . . . . . . . . . . . . 5-9
7-1
7510 (VHF) Block Diagram . . . . . . . . . . . . . . . . 7-2
7-2
7540 (UHF) Block Diagram . . . . . . . . . . . . . . . . 7-3
LIST OF TABLES
1-1
75xx Accessories. . . . . . . . . . . . . . . . . . . . . . . . . 1-2
3-1
Memory Channel Screen Description
(LMR Models) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-2
Key and Display Assign Screen Description . . . 3-6
3-3
DTMF Autodial Screen Description . . . . . . . . . . 3-9
3-4
Continuous Tone Screen Description . . . . . . . . . 3-9
3-5
Scan Function Screen Description . . . . . . . . . . 3-10
3-6
2-Tone Code Channel Screen Description . . . . 3-11
3-7
Common Screen Description . . . . . . . . . . . . . . 3-12
3-8
Expert Screen Description. . . . . . . . . . . . . . . . . 3-13
5-1
Test Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
6-1
Transistor Information. . . . . . . . . . . . . . . . . . . . . 7-1
6-2
Diode Information . . . . . . . . . . . . . . . . . . . . . . . . 7-1