Motorola MCS 2000 Service Instructions Manual page 71

Signal Name Node No. Schematic Diagram
Title
SQUELCH Receiver Back End
DISC Receiver Back End
2.1MHZ Receiver Back End
ZIF_SEL Receiver Back End
CLK Receiver Back End
SPI_TX_DATA Receiver Back End
RSSI Receiver Back End
PA_CNTL Power Amplifier
TX_INJ Power Amplifier
K9.1 Power Amplifier
Table 2: Schematic Diagrams Interconnection List
From
Publication
No.
68P81080C44-B
68P81080C44-B
68P81080C44-B
68P81080C44-B
68P81080C44-B
68P81080C44-B
68P81080C44-B
68P81080C44-B
68P81080C44-B
68P81080C44-B
Signal Name Node No. Schematic Diagram Title
SQUELCH IF1-2-17 Receiver IF
SQUELCH IF3-2-16 Receiver IF
SQUELCH_IN Controller, ASFIC/Audio Block
Diagram/Main Controller
DISC Controller, Hear Clear/audio Block
Diagram/Main Controller
DISC IF1-3-2 Receiver IF
DISC IF3-3-4 Receiver IF
DISC Controller, ASFIC/Audio Block
Diagram/Main Controller
See List of Common Voltages and
Signals at End of This Table
ZIF_SEL Controller/Main Controller
ZIF_SEL IF1-2-18 Receiver IF
ZIF_SEL IF3-2-1 Receiver IF
See List of Common Voltages and
Signals at End of This Table
See List of Common Voltages and
Signals at End of This Table
See List of Common Voltages and
Signals at End of This Table
PA_CNTL Controller, Power Control/Main
Controller
TX_INJ Synthesizer
See List of Common Voltages and
Signals at End of This Table
To
Publication
No.
68P81080C44-B
68P81080C44-B
68P81083C20-B
68P81083C20-B
68P81080C44-B
68P81080C44-B
68P81083C20-B
68P81083C20-B
68P81080C44-B
68P81080C44-B
68P81083C20-B
68P81080C44-B