TP660 Service Manual
Contents
1. Overview ...................................................................................................................................................... 1
1.1. Scope ............................................................................................................................................................... 1
1.2. Safety Precaution ............................................................................................................................................. 1
2. Introduction ................................................................................................................................................. 2
2.1. External Views and Functional Keys................................................................................................................ 2
2.2. LED Indicator ................................................................................................................................................... 2
3. Circuit Description ...................................................................................................................................... 3
3.1. Tx/Rx Signal Procedure ................................................................................................................................... 3
3.1.1.
Tx Circuit ....................................................................................................................................................... 3
3.1.2.
Rx Circuit ....................................................................................................................................................... 4
3.1.3.
Frequency Synthesizer Circuit ...................................................................................................................... 6
3.2. Power Section .................................................................................................................................................. 6
4. Function Description and Parameter Settings ........................................................................................ 8
4.1. Conventional Functions ................................................................................................................................... 8
4.2. Function Parameter Settings ........................................................................................................................... 8
5. Assemble and Disassemble Instructions ............................................................................................... 11
5.1. Attaching and Detaching the Battery ............................................................................................................. 12
5.2. Attaching the Antenna .................................................................................................................................... 12
5.3. Attaching the Belt Clip .................................................................................................................................... 13
5.4. Separating the Shell from the Chassis .......................................................................................................... 13
5.5. Disassemble the Main Board from the Chassis ............................................................................................. 14
5.6. Separating the Keyboard from the Front Cover ............................................................................................. 15
5.7. Exploded View ............................................................................................................................................... 16
6. Adjustment ................................................................................................................................................ 18
6.1. Components for Adjustment ........................................................................................................................... 18
6.2. Adjustment Test Method ................................................................................................................................ 19
6.2.1.
Frequency Description ................................................................................................................................ 19
6.2.2.
Test Tools .................................................................................................................................................... 19
6.2.3.
Tx Test and Modulation ............................................................................................................................... 19
6.2.4.
Rx Test and Modulation ............................................................................................................................... 21
7. Technical Functions and Index ............................................................................................................... 22
8. Maintenance and Test Equipment ........................................................................................................... 24
9. Troubleshooting ........................................................................................................................................ 25
Appendix ....................................................................................................................................................... 26
List 1 Material List
（
Electronic Section 400-470MHz
）
...................................................................................... 26
List 2 Material List
（
Electronic Section 136-174MHz
）
...................................................................................... 37
List 3 Material List (structure material) .................................................................................................................... 47
Figure 1 TP660 Main Board Top Side PCB View (400-470MHz) ........................................................................... 50
Figure 2 TP660 Main Board Bottom Side PCB View (400-470MHz) ...................................................................... 50
Figure 3 TP660 Main Board Top Side PCB View (136-174MHz) ........................................................................... 51
Figure 4 TP660 Main Board Bottom Side PCB View (136-174MHz) ...................................................................... 51
Figure 3 TP660 keypad Top Side PCB View .......................................................................................................... 52
Figure 4 TP660 keypad Bottom Side PCB View ..................................................................................................... 52
Figure 5 TP660 Mainboard Schematic Diagram(400-470MHz) ............................................................................. 53
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Summary of Contents for TP660
Page 1: ...TP660 Service Manual ...
