Motorola 38C V100 Service Manual page 75

B C
A
1
2
C
3
D
4
SH4
SAW Filter
5 400MHz
6
E
7
SH5
8
9
35
26 24 22
72 PIN CONN
70
10
from Magic
RVCO_275 GP04
11
A B C
V100 - SIGNAL FLOW - PAGE 1/2
D E F
ANT
CONN
1st GSM
Filter
B
A
942,5MHz
G
H
SH7
14 13 12 11
16 9
PA
1 2 4 8
7
K
SH6
I
F
MAGIC_13MHz
BFSR
BDR
L
BCLKR
BCLKX
BDX
1
20 18
46
36
SF_OUT *DCS_SEL RX275 RX275 RX_EN RF_V2
D E F
G H I J
RVCO_PCS RX275_DPCS RVCO_DCS
B
1st PCS Filter
A
10 7 6
1 4 5 1st DCS Filter
G
H
1
14
2
PAC IC
7 8
I
K
TX VCO IC
3
2
SH3
L
F TX VCO SIGNAL
A RX/TX ANTENNA SIGNAL G FILTERED PA OUTPUT SIGNAL
B GSM RX ANTENNA SIGNAL PA DETECT LINE
H
C FILTERED GSM RX ANTENNA SIGNAL I PA TUNING VOLTAGE
D UNFILTERED IF 400MHz PA TUNING VOLTAGE
K
E AMPLIFIED IF 400MHz RX/TX SPI BUS
L
G H I J
K L
M
RVCO_PCS RX275_GSM RX275_DPCS RX275_GSM RX275
C
SH1
2nd GSM
Filter
942,5MHz
1960MHz
DCS/PCS
Filter
1842,8MHz
1897MHz
D
6
5
RX VCO IC
4
1
3 2
E
SDTX J2
TX_CLK G7
SCLK_OUT F7
BDR
SDRX G8
MAGIC IC
4 BFSR
SDFS G9
5
6
1
26MHz
SH2
F
MAGIC_13MHz
BFSR
BFSR
BDR
BDR
BCLKR
BCLKR
BCLKX
BCLKX
BDX
BDX
TX275_DPCS SF_OUT TX275_DPCS RF_V2 RF_V1
K L M
N
1
RVCO_275
2
3
4
5
6
BDX
BCLKX
BCLKR
7
8
9
10
11
N