Sharp GX20 Service Manual page 127

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C860
R853
22P(CH)
47
R851
47
61
BEADS
R855
R856
68
68
C857
10P(CH)
R858
R857
R859
180
56
56
VCO851
Pin 3 Pin 7
GSM
LOW LOW
DCS
HIGH
LOW
PCS
HIGH HIGH
L901
8.2nH
L902
FL901
8.2nH
SAW FILTER
L903
2.7nH
L904
2.7nH
FL902
SAW FILTER
L905
2.2nH
FL903
SAW FILTER
L906
2.2nH
(
) : Not Mount
7
CONFIDENTIAL
+B
+B
+B
C836
100P(CH)
+B
C834
C833
22P
100P
(CH)
(CH)
DCS/PCS TX
DCS/PCS TX
8
7
6
5
IC831
9
PF08123B
1 2 3 4
RF POWER AMP.
GSM TX
+B
GSM Tx
IC831
Pin 7
GSM
HIGH
DCS
LOW
PCS
LOW
C906
47P(CH)
GSM Rx
C802
47P(CH)
C907
C803
22P(CH)
47P(CH)
DCS Rx
C908
22P(CH)
PCS Rx
The numbers
8
9
IC991
NL27WZ08
LOGIC
IC881
C885
Pin 8
+B
0.01
GSM
HIGH
DCS
LOW
12
11
10
9
PCS
LOW
13
8
14
7
15
6
16
5
1 2 3 4
+B
R885
C882
10K
100P(CH)
6
5
4
1
4
R816
10dB
1 2
3
2
3
FL816
DIRECTIONAL
COUPLER
1
4
3
2
1
FL811
DIRECTIONAL
COUPLER
2
3
4 5 6
R811
10dB
6
5
4
FL817
C801
ESD DEVICE
47P(CH)
1 2 3
FL801
Tx
GSM
Rx
Tx
DCS
Rx
Tx
PCS
Rx
4
to
20
are waveform numbers shown in pages 5-2, 5-3, 5-4.
10
1
2
3
4
C801A
J801
0.5P(CH)
RF
CONNECTOR
Pin 2
Pin 4
Pin8
LOW
LOW
HIGH
LOW
LOW
LOW
HIGH
LOW
LOW
LOW
LOW
LOW
HIGH
LOW
LOW
LOW
HIGH
LOW
11
12
AERIAL
ANT801
AERIAL
TERMINAL

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