Motorola R-20010 Maintenance Manual page 12

Table
1-1
1-2
1-3
1-4
2-1
2-2
2-3
2-4
2-5
2-6
3-1
3-2
LIST OF TABLES
SECTION 1. INTRODUCTION
Physical Characteristics ............. . .... .. .. ... ... ... .. . . .. . .. . ... .. . ... . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input/Output Characteristics .... ..... . . . .. .. . . . .. . . ... .. .. .... . .. .. . . ....... .
List of Subassemblies ........ . ..... . ...... ..... . . . . . . . . . . . .. . .. . . ..... . .. . .
SECTION 2. SYSTEM THEORY OF OPERATION
AF BUS Control .... ..... ... . . .. ... .... . .. ........ . .. ........ . ... . . . . ... . .
RF BUS Control . . . . ... .... . .... .. ... . ... . . . ..... .. .. .. .. . . .. . ... .. ... . .. .
MOD Control . . . ...... . ... .. .... .. . . .... . . . .. .. .. ...... . . . .. ... . .. .... .. .
Receiver Control . . ................. . .. . ... .. ..... . . . ... . . . . . . . . ... . .. . ... .
Duplex Control ... . . .... ....... .... .... . . .. . . ....... .. . . . . . .. ............ .
Receiver Filters ......... . ....... . .. . ..... . .. . . .. . . . .. ... .. . .. . ... . . . .. ... .
SECTION 3. ALIGNMENT PROCEDURE
Basic Test Equipment Required ........ ... . . . ... ... . ... . . . . .... ... ..... .... . . .
Extended Test Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 4. SYSTEM CHECKOUT AND TROUBLESHOOTING
Page
1-1
1-1
1-7
1-8
2-2
2-3
2-3
2-3
2-3
2-3
3-1
3-1
4-1 Test Equipment for Checkout and Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1
4-2 System Checkout and Troubleshooting Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-3 Test-Point Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-14
SECTION 5. SYSTEM WIRELIST AND PARTS LIST- SYSTEM MOTHERBOARD (A19)
5-1 System Motherboard Wirelist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5-2 a-r System Wirelist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-59
6-1
8-1
8-2
9-1
SECTION 6. HIGH-VOLTAGE POWER SUPPLY (A1)
Wirelist tor the High-Voltage Power Supply ...... . .... . ........... . . . . .... . ...... .
SECTION 8. LOW-VOLTAGE POWER SUPPLY (A3-A6)
Control Logic Functions . . .... . ... . ... . .. . ... . .... ... . .. . ..... ....... . ...... .
Output Voltages . .. .. . .... . . ... . . . . . . . ... . .. . ..... . . .. . . ... . .. .. . . ... .... .
SECTION 9. SCOPE/DVM CONTROL BOARD (A7)
Internal DVM Inputs . .. . . . . ............ . . ............ . .. . ....... .. .. . ..... .
SECTION 10. RECEIVER BOARD (AB)
6-2
8-3
8-4
9-3
1 0-1
Functions of Digital Control Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 0-5
1 0-2
Low-Pass Filter - Control-Bit Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 0-5
1 0-3
High-Pass Filter - Control-Bit Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0-5
1 0-4 Modulation-Select - Control-Bit Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0-5
SECTION
15.
FRONT-PANEL INTERFACE BOARD (A15)
15-1 AF ADD and DATA BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2
15-2 Decoding tor Display, Function, and Modulation LEOs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-2
15-3 Range-Attenuator Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
15-4 Input Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
15-5 RF-Attenuator Encoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-3
15-6 Functions of Miscellaneous Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
15-7 Sweep-Select Encoding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-4
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