Motorola MCS 2000 Service Instructions

68P81083C20-D December 6, 2004
Diagrams and Parts Lists: Schematic Diagram Hierarchy 10-3
Figure 10-2. Example of Transceiver Board Block Connection Diagram (110 Watt Radio)
MAIN BOARD
PA BOARD
MAEPF-25516-A
BATTERY
ANTENNA
+
-
GND
VSUM
VFWD BUF
SPK -
SPK +
CL UNSW 5V
UNSW 5V
Vaud
Vdd
+5V
PWR RST
SWB+
A+
B+ ON/OFF
CLEAR
AUPA EN
B+ IGNITION
RX AUDIO
GND
GNDD
A+ CNTL
PA CNTL
CURR SENSE +
CURR SENSE -
PA TEMP
K 9.1V
V FORWARD
V CNTL
GND GNDD A+ PA CNTL CURR SENSE + CURR SENSE - PA TEMP K 9.1V V FORWARD V DRIVE
AUDIO MOD
SYN SEL
LOCK DET
ROSC SEL
9.3
CLK
SPI TX DATA
2.1 MHz
RF REG 5V
GND
AUD MOD
SYN SEL
LOCK DET
ROSC SEL
9.3
CLK
SPI TX DATA
2.1MHz
RX CNTL SRC
ZIF SEL
DISC
SQUELCH
RSSI
LO INJ
AUDIO AND POWER
REGULATION
SECTION
(REFER TO VOLUME I)
SYNTHESIZER
SECTION
RECEIVER FRONT END
RECEIVER
BACK END
RECEIVER IF
CONTROLLER
COMMON
(LOGIC)
SECTION
(REFER TO
VOLUME I)
INTERCONNECT 5
INT 8
IF IN
RX IN
GND
TX INJ
67
77
281 9 11 1210543
INTERCONNECT 7
INTERCONNECT 2
J9601
J3500
J9500
J3501
9.3
INTERCON 3
INTERCONNECT 1
INTERCON 4
6
12
12
281
9
11
12
10
543
7
Block
Interconnect
Physical
Connector

Motorola MCS 2000 Specifications

General

Brand	Motorola
Model	MCS 2000
Category	Radio
Language	English