Motorola MCS 2000 Service Instructions

December 6, 2004 68P81083C20-D
9-8 Troubleshooting TX Audio Routing, Simplified Schematic for Chart 1-4
TX Audio Routing, Simplified Schematic for Chart 1-4
VR0411
14V
C0427
470pF
C0219
10µF
C0218
0.1µF
C0221
0.1µF
C0224
0.022µF
R0222
100
R0223
1K
R0224
470
VR0412
14V
C0254
10nF
C0251
0.1µF
C0257
10nF
C0222
10µF
C0223
0.022µF
C0421
470pF
R0230
1K
R0252
47.5K
R0231
100
R0229
470
EXT MIC
INT MIC
J0405-9
J0403-13
MIC
VOLTAGE
MIC
VOLTAGE
C0243
10nF
COMP
OUT
COMP
BUF OUT
COMP
BUF IN
HEAR CLEAR i
U0250
EXT
MIC
IN
MIC AMP
OUT
TX
IN
PREMP
LIM
IN
VCO MOD
INT
MIC
IN
ASFIC
U0200
VCO
ATTN
PLACED
900 MHz
ONLY
D3 F2 F3
C7A6
A7
C8
E8
B8
H8
25KHz, 80mVrms, 1KHz tone
2.5Vdc
45mVrms
145mVpp
1.5Vdc
46mVrms
152mVpp
2.5Vdc
45mVrms
145mVpp
1.5Vdc
46mVrms
152mVpp
2.5Vdc
45mVrms
139mVpp
1.5Vdc
46mVrms
152mVpp
2.5Vdc
45mVrms
139mVpp
1.5Vdc
46mVrms
152mVpp
2.5Vdc
114mVrms
372mVpp
1.5Vdc
57mVrms
172mVpp
45mVrms
145mVpp
46mVrms
152mVpp
45mVrms
145mVpp
46mVrms
152mVpp
12.5KHz, 80mVrms, 1KHz tone
9.3V
MAEPF-25959-O

Motorola MCS 2000 Specifications

General

Brand	Motorola
Model	MCS 2000
Category	Radio
Language	English