Motorola L7082 Service Manual page 55

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