Motorola R-20010 Maintenance Manual page 9

Figure
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7-2 a,b
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LIST OF ILLUSTRATIONS (Cont)
SECTION 7. SCOPE AMPLIFIER BOARD (A2)
Block Diagram ......... .. ... .... .. ... . ...... · .......... .. . ............... .
Schematic (Sheets 1 and 2) ................................................. .
Printed Wiring Board Assembly and Parts List ........... ... ..... . ....... .. ....... .
SECTION 8. LOW-VOLTAGE POWER SUPPLY (A3-A6)
Page
7-3
7-4
7-7
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-S
Battery Charger Board (A3) - Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Battery Charger Board (A3)- Printed Wiring Board Assembly and Parts List . . . . . . . . . . . . . . 8-7
Battery Charger Board (A3) - Assembly and Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Control Board (A4) - Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Control Board (A4) - Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 0
Control Board (A4) - Printed Wiring Board Assembly and Parts List .............. ·. . . . . . 8-11
Output Board (AS)- Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13
Output Board (AS) - Printed Wiring Board Assembly and Parts list (Sheets 1 and 2) . . . . . . . . 8-15
Switcher Board (A6) - Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
Switcher Board (A6) - Printed Wiring Board Assembly and Parts list . . . . . . . . . . . . . . . . . . . 8-19
Switcher Board (A6) - Assembly and Parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
SECTION 9. SCOPE/DVM CONTROL BOARD (A7)
Block Diagram (Sheets 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Schematic (Sheets 1 thru 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
Printed Wiring Board Assembly and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
SECTION 10. RECEIVER BOARD (AS)
Receiver Board (AS) - Block Diagram ............... . .......... . ........ . .... . .
Linear IF Amplifier- Block Diagram .................... . ......... ........... . .
Logarithmic Amplifier - Block Diagram .. . ... . .. .. ......... .. .... . . ...... .. . ... .
FM/SSB/WB Signal-Present Detectors - Block Diagram .......................... . .
Baseband Audio-Processing Circuits - Block Diagram ....... .. .................... .
Schematic (Sheets 1 thru 5) . .. ....... ... ........................ . ........... .
Printed Wiring Board Assembly and Parts list (Sheets 1 thru 4) ... .... ...... . ..... . .. . .
SECTION 11. RF SYNTHESIZER MODULE (A9)
RF Synthesizer Module (A9) - Block Diagram ... . .................... . ...... .. .. .
RF Synthesizer Module (A9) - Assembly and Parts list ........... . . . . ...... ....... .
Reference and Control Board (A9A 1) - Block Diagram ........ . ........ . ....... .. .. .
Reference and Control Board (A9A 1) - Schematic .............. ... . ...... . .. ..... .
Reference and Control Board (A9A 1) - Printed Wiring Board Assembly and Parts list .. .. .. .
310 to 440-MHz Loop Board (A9A2) - Block Diagram ................... . ......... .
310 to 440-MHz Loop Board (A9A2)- Schematic ...................... . ..... . .. . .
310 to 440-MHz Loop Board (A9A2)- Printed Wiring Board Assembly and Parts List. ... ... .
Synthesizer Output Board (A9A3) - Block Diagram .. .... . ........... . .... ........ .
Synthesizer Output Board (A9A3) - Schematic ......... .... .................. . .. .
Synthesizer Output Board (A9A3) - Printed Wiring Board Assembly and Parts list ........ .
60.5-MHz Loop Board (A9A4)- Block Diagram ... . .............................. .
60.5-MHz Loop Board (A9A4)- Schematic (Sheets 1 and 2) . . ....... . ...... . ....... .
60.5-MHz Loop Board (A9A4) - Printed Wiring Board Assembly and Parts List ........... .
GHz Loop Board (A9A5) - Block Diagram .............. . .. . .. . ....... .. .... . . . . .
GHz Loop Board (A9A5) - Schematic .................. . ...... . ............ .. . .
GHz Loop Board (A9A5) - Printed Wiring Board Assembly and Parts list (Sheets 1 and 2) . .. .
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