Motorola L7082, Service Manual

Page: 55 / 56

SH4
SH1
B
L7082 / L7089 - SIGNAL FLOW
RX275_GSM RX275 RVCO_PCS RVCO_275 SF_OUT TX275_DPCS V1_SW RF_V2 V1_SW -5V -10V TX_EN V_BOOST1 VREF V2
RX275_GSM_PCS RX275_DCS TX275 TX275_GSM PA_B+ TX275_GSM SF_OUT STBY_DL B+ VSIM1 V1 V3
TX_DCS TX275 TX_GSM PA_B+ TX_DCS RX275_DPCS RVCO_PCS B+ TX275 RX275_GSM_PCS RX_EN RX275 RVCO_275
RVCO_DCS *PCS_SEL SW_VCC *DCS_SEL *GSM_SEL RX275_GSM RX275_DCS V1_SW STBY_DL V1
10
5 6
1
3
1
2
3
1
5 6 4
1 2
A
A
2
5
B
2 5
C
C
1
5
D
A7
A1
5
1
A3
B1
4
1
H
H
7
11
12
13
14
1
8 9
16
I
I
J
J
2 1
7
8 14
K
K
2
L
L
J6
H10
H9
J9
E1 E2
E
F
E
F
H6
H7
K1
G
G
1960MHz
PCS
1842,8MHz
DCS
1897MHz
DCS/PCS
942,5MHz
GSM
RX_VCO_IC
MAGIC
26MHz
TX_VCO_IC
PAC
WHITE_CAP
SRAM
FLASH
EPROM
SIM_CONN
GCAP II
3
2
,7
6
8
M
H
z
E
X
T
_
C
O
N
N
B
A
T
T
_
C
O
N
N
D
IS
P
L
A
Y
_
C
O
N
N
SAW FILTER
IP
A
400MHz
RTC_BATT_CONN
H
E
A
D
S
E
T
J
A
C
K
D
GSM RX ANTENNA SIGNAL
FILTERED GSM RX ANTENNA SIGNAL
UNFILTERED IF 400MHz
AMPLIFIED IF 400MHz
RX SPEAKER LINE -
RX SPEAKER LINE +
TX MIC LINE +
TX VCO SIGNAL
FILTERED PA OUTPUT SIGNAL
PA DETECT LINE
PA TUNING VOLTAGE
PA TUNING VOLTAGE
RX LOCAL OSC TUNING VOLTAGE
RX LOCAL OSC 800MHz
A
B
C
D
E
F
G
H
I
J
K
L
J600 EXT CONN
1 NC
2 SW_RF
3 GND
4 BATT_FDBK
5 MAN_TEST_AD
6 RS232_TX
7 RS232_RX
8 RX_CHRG_EN
9 ON_2
10 GND
11 UPLINK
12 DOWNLINK
13 DSC_EN
14 EXT_B+
15 GND
MIC
1
2
3
4
GND
BATT_THERM_AD
BATT_SER_DATA
BATT+
PRE_IN
PRSC_IN
CP_RX
CP_TX
X
T
A
L
_
E
M
IT
X
T
A
L
_
B
A
S
E
CLK-OUT
J7
PLL_BASE
PLL_EMIT
PLL_CP
K9
SPKR+
SPKR-
ALRTOUT
M
IC
_
O
U
T
1
GND
2
3
4
5
6
VPP
SIM_I/O
SIM_Vcc
RESET
CLK
4
6
6
4
4
7
3
5
3
R
V
C
O
_
P
C
S
R
X
2
7
5
_
D
P
C
S
T
X
_
E
N
R
F
_
V
2
T
X
_
G
S
M
R
V
C
O
_
D
C
S
1
4 5
6
7
8
SH2
SH3
SH5
SH7
S
H
6
942,5MHz
GSM
J902
DISPLAY
CONN
1 /CS1
2 /RES
3 Data/Command
4 R_W
5 D0
6 D1
7 D2
8 D3
9 D4
10 D5
11 D6
12 D7
13 Vop
14 VSS
15 VOUT
16 V1
17 V2
18 V3
19 V4
20 V5
21 VR*
22 IRS*
23 NC
24 NC
25 NC
26 NC
27 NC
M
N
M
N
A9
LO2_CP
D9
LO2_EMIT
M
N
RX Local Osc.