Motorola TDMA M3090 Service Manual page 120

TDMA M3090/M3097:
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Channel: 333
Cellular RX Input Freq: 879.99MHz
PCS RX Input Freq:
RX Input: -20dBm
TX AUDIO SIGNAL
RX AUDIO SIGNAL
VOLTAGE SUPPLIES
Colored boxes represent the area in
which the components are placed.
MICIN-
U1500
page B27
MIC_BIAS
page B27
Headset/MIC
1940.01MHz
C1587
C1585
A
Q1560
C1560
J8
B
BOOM_MIC_DET
R1560
Headset On
A 0V 1.74V
2.79V
B
1.2Vpp
HDST_SPKR
R1561
R1563
AUX_MIC-
AUX_OUT
MICIN+
C1589
MIC_OUT
U1000
page B43
2.75V
page B27
Off
0V
U1500
page B27
MIC_BIAS
page B27
U1500
page B27
U1500
page B27
U1500
page B27
VAG
page B27
U1500
page B27