Motorola MCS 2000 Service Instructions

68P81083C20-D December 6, 2004
Troubleshooting Troubleshooting Chart 1-4, TX Audio 9-7
Troubleshooting Chart 1-4, TX Audio
1KHz
45mVrms on
U0200-B8
TP5800 has
1KHz ~114mVrms
AC with ~2.5VDC
offset
GOTO Band Specific
RF Transmitter
Chart
Check for solder defects
on U0200, C0218,
R0224, R0233
SPI lines
activity at
U0200-E3, F1
Check
U0103
Check
U0200 all bands,
U0250 for 900MHz
Ye s
Ye s
Ye s
No
No
No
Inj: 1KHz Tone, 80mVrms
at the Internal Microphone
Ref: TX Audio Simplified Schematic
~ = Approximately
Check
R0403, R0404,
R0405
SPI activity
on pins 66, 67
of U0103
No
Ye s
START
MAEPF-25950-O

Motorola MCS 2000 Specifications

General

Brand	Motorola
Model	MCS 2000
Category	Radio
Language	English