DR600 Service Manual
6.1 Preparation .......................................................................................................................................... 40
6.2 Method of Modulation and Test ........................................................................................................... 40
6.2.1 Local Oscillator Adjustment............................................................................................................... 40
6.2.2 Tx Adjustment ................................................................................................................................... 41
6.2.3 Rx Adjustment ................................................................................................................................... 42
7. Main Technical Functions and Specifications ................................................................................... 44
8. M
aintenance and Test Equipment ....................................................................................................... 46
9. Troubleshooting .................................................................................................................................... 47
Appendix 1 Band Spare Part List ................................................................................................................ 50
Table 1 400-470 Parts List (Rx Module Section) ............................................................................................ 50
Table 2 400-470 Parts List (Tx Module Section) ............................................................................................ 60
Table 3 400-470 Parts List (Power Amplification Section) ............................................................................. 66
Table 4 136-174 Part List(RX Module Section) .............................................................................................. 70
Table 5 136-174 Part List(TX Module Section) .............................................................................................. 85
Table 6 136-174 Part List(Power Amplification Module Section) ................................................................... 91
Table 7 Parts List (Baseband Mainboard) ...................................................................................................... 95
Table 8 Parts List (Front Panel) .................................................................................................................... 102
Table 9 Parts List (Power Board) .................................................................................................................. 103
Table 10 Parts List (Accessory Board) ......................................................................................................... 103
Table 11 Parts List (Enternet Board) ............................................................................................................ 104
Appendix 2 PCB View and Schematic Diagram ...................................................................................... 105
Figure 1 Rx Module Top Board PCB View ................................................................................................... 105
Figure 2 Rx Module Bottom Board PCB View .............................................................................................. 106
Figure 3 Tx Module Top Board PCB View .................................................................................................... 107
Figure 4 Power Amplifier Module Top Board PCB View .............................................................................. 108
Figure 5 Power Amplifier Module Bottom Board PCB View ......................................................................... 108
Figure 6 Baseband Mainboard Top Board PCB View .................................................................................. 109
Figure 7 Baseband Mainboard Bottom Board PCB View ............................................................................ 110
Figure 8 F
ront Panel Top Board PCB View ................................................................................................... 111
Figure 9 Front Panel Bottom Board PCB View ............................................................................................. 111
Figure 10 Power Board Top Board PCB View .............................................................................................. 112
Figure 11 Accessory Board Top Board PCB View ........................................................................................ 113
Figure 12 Accessory Board Bottom Board PCB View .................................................................................. 113
Figure 13 Enternet Board Top Board PCB View .......................................................................................... 114
Figure 14 Enternet Board Bop Board PCB View.......................................................................................... 115
Figure 15 400-470 Rx Module Schematic Diagram ..................................................................................... 116
Figure 16 400-470 Tx Module Schematic Diagram ..................................................................................... 123
Figure 17 400-470 Power Amplifier Module Schematic Diagram ................................................................ 128
Figure 18 136-174 Rx module schematic Diagram ...................................................................................... 131
Figure 19 136-174 Tx Module Schematic Diagram ..................................................................................... 138
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