Motorola StarTAC 3000 Service Manual page 58

StarTAC 3000 :
Motorola Confidential Proprietary
4.2MHz
page B-7
REF 2.75
page B-12
109.65MHz
-14dBm
FL201
L108
Q101
page B-5
C106
J800
A
RSSI
U800-15
20
page B-19
RX_DISABLE
U700-18
17
page B-18
FREQ_ERROR
U800-16 25
page B-19
HVCC
U401-4
page B-7
REF_2.75
page B-12
219.6MHz
-18.3dBm
RX Ant Input(dBm)
- 1 0 0 - 5 0 - 3 0
A
.51V 1.7V 2.7V
Channel: 385
RX Input Freq: 881.55MHz
RX Input: -20dBm
RX SIGNAL
VOLTAGE SUPPLIES
Colored boxes represent the area in
which the components are placed.
U201 LVZIF IC
This manual is Motorola property. Copying or
distribution strictly prohibited without prior written
consent from Motorola and must be returned upon
Motorola's request.
L204
109.65MHz
-15.5dBm
C229
L202
C201
C203
NC
C206
C207
R212
L205
CR201
C231
C227
C225
48 47 46 45 44 43 42 41 40 39 38 37
2.78V
1
0V
2
.8V
3
2.7V 4
MIX
1.37V
5
U201
0V
6 UP_MIXER
90º
0.0V 7
ZIF
Ø SHFT
8
4.56V 9
2.71V 2nd LO
10
1.40V
11
PH DET
2.17V
12
13 14 15 16 17 18 19 20 21 22 23 24
C208
R201
S1
J1
C221
C223
C222
1.36V
36
35 1.36V
C220
1.36V
34
1.36V
33
1.38V
32
1.41V
31
2.77V
30
0V
29
C219
1.58V
28
1.30V
27
1.34V
26
1.35V
25
DEM AUDIO
R210
R211
ZIF_ ENABLE
RF_SPI_CLOCK
RF_SPI_DATA
REF 2.75V
page B-12
J800
33
U700-46
page B-18
U700-24
13
page B-18
4 U800-18
page B-19
2
U800-19
page B-19