Ericsson EDACS PRISM HP Spezifikationen PDF herunterladen (Seite 3)

AE/LZB 119 1641 R1B

SPECIFICATIONS......................................................................................................................................................................4

GENERAL...............................................................................................................................................................................4

DIGITAL.................................................................................................................................................................................5

RECEIVE ................................................................................................................................................................................5

TRANSMIT.............................................................................................................................................................................5

DESCRIPTION ...........................................................................................................................................................................6

MECHANICAL.......................................................................................................................................................................7

OPTIONS AND ACCESSORIES................................................................................................................................................7

OPERATION...............................................................................................................................................................................8

CONTROLS ............................................................................................................................................................................8

KEYPAD SCAN/SYSTEM FUNCTIONS..............................................................................................................................9

CIRCUIT ANALYSIS...............................................................................................................................................................10

SOFTWARE..........................................................................................................................................................................10

RECEIVER............................................................................................................................................................................10

RX Front End.....................................................................................................................................................................10

Rx Back End......................................................................................................................................................................11

TRANSMITTER ...................................................................................................................................................................13

Transmit Frequency Generation.........................................................................................................................................13

TX/Converter/Modulator (N150).......................................................................................................................................13

Transmit Band Pass Filter..................................................................................................................................................14

Buffer Amplifier (V104)....................................................................................................................................................14

Power Amplifier (N101)....................................................................................................................................................14

Directional Coupler (W100)..............................................................................................................................................14

Power Sensor Circuit (N102-A).........................................................................................................................................14

Power Control Buffer (N102-B)........................................................................................................................................15

Transmit Low-Pass Filter/Antenna Switch.........................................................................................................................15

Transmit Modulation .........................................................................................................................................................15

SYNTHESIZER.....................................................................................................................................................................15

Dual Synthesizers (N203/N204)........................................................................................................................................15

Bilateral Switch (N201).....................................................................................................................................................16

Main Voltage Controlled Oscillator (U200)......................................................................................................................16

Main Synthesizer (N203)...................................................................................................................................................16

Auxiliary Synthesizer (N204) ............................................................................................................................................16

Reference Oscillator (U201)..............................................................................................................................................16

DC POWER DISTRIBUTION..............................................................................................................................................16

Synthesizer Regulator (N290)............................................................................................................................................16

Receiver Regulator (N490)................................................................................................................................................16

Transmit Regulator (N190)................................................................................................................................................17

Tx Switch (V192) ..............................................................................................................................................................17

B+ Switch (V191)..............................................................................................................................................................17

Analog Regulator (N900)...................................................................................................................................................17

+5V-D Switching Regulator (N902)..................................................................................................................................17

LCD NEGATIVE BIAS GENERATOR ...............................................................................................................................18

SERVICE...................................................................................................................................................................................18

EQUIPMENT REQUIRED...................................................................................................................................................18

PROGRAMMING.................................................................................................................................................................18

Personality Programming...................................................................................................................................................18

Flash Programming............................................................................................................................................................19

Programming Mode ...........................................................................................................................................................19

BASIC TROUBLESHOOTING............................................................................................................................................19

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