Motorola MCS 2000 Service Instructions

68P81083C20-D December 6, 2004
Troubleshooting Troubleshooting Chart 1-5, RX Audio 9-9
Troubleshooting Chart 1-5, RX Audio
~800mVpp
on U0200-J7
Ye s
Ye s
Ye s
Ye s
Ye s
No
No
No
No
No
Check speakers
Check
U0203
Check R0234,
C0240, R0239
SPI activity
on pins 66, 67
of U0103
Check
U0103
Inj: 1kHz Tone, 3kHz deviation at the appropriate
RX frequency into the antenna connector.
Volume set to ~7.5 Vrms
Ref: RX Audio Simplified Schematic
~ = Approximately
Check
U0200
GOTO Band Specific
IF Receiver Chart
~375mVpp
on U0200-J4
SPI activity at
U0200-E3, F1
~68mVpp
on U0203-J9
~5.4 Vpp
on
U0203-6, 4
No
Ye s
Check
R0403, R0404,
R0405
START
MAEPF-25951-O

Motorola MCS 2000 Specifications

General

Brand	Motorola
Model	MCS 2000
Category	Radio
Language	English