- 88 -
NA
C402
C421
1.2p
PA_ON
APC
BT_26MHZ
ANT_SW1
ANT_SW2
DCS_PCS_TX
GSM_TX
DCS_PCS_TX
GSM_TX
4dB Atten
0603
0603
2
Name
0603
5
Notice No.
2
L
0603 0603
S.J.Kwon
C.B.Hong
Date
L
MODEL
GSM850_EGSM RX
CTRL1
9
7
10
H
H
LG Electronics Inc.
Sheet/
1
DCS/PCS RX
CTRL2
LG Electronics Inc.
6
B
0603
0603
D
4
3
PIN 18
Date
PIN 21
Approved
33dBm
A
Iss.
3dB Atten
1
0603
H
22K Thermistor
35dBm
C
Rev 1.0
DCS/PCS TX
0603
B
H
LGIC(42)-A-5505-10:01
0603
5
NO.
GSM850_EGSM TX
0603
0603
D
3
8
Coil Type
0603
0603
MG810c
C
DRAWING
B
A
4/5
Section
L
Sign & Name
E
4
Sheets
RF
DRAWING
L
A
NAME
Checked
Designer
NA
C518
NA
C517
220
R416
C403
22nH
L403
27nH
RF2.85V
ANT403
C417
1.2p
R402
24
390p
C419
26MHz
X401
2
GND
3
OUT
VCC
4
VCONT
1
100p
C422
680
R421
R419
820
ANT402
1.2p
C424
ANT401
1000p
220
R408
C416
820
R418
220
R423
R413
0
1.8nH
R409
R411
18
R403
220
0
R422
RF2.85V
6.8nH
L404
C405
27p
C425
680
R428
0.1u
RF2.85V
C414
C420
100p
ANT
G1
G2
RF
27p
KMS-512
SW401
C427
1.2p
220
R405
10p
R406
C428
1000p
RF2.85V
R550
100K
27p
C401
C413
100p
C404
NA
820
R420
RF2.85V
1000p
R401
220
C999
4.7K
R429
220
R407
220
R424
10p
R404
6.8nH
L401
C430
1u
220
R415
220
R414
VDD2
13
28
VDD3
VDD4
29
VIO
11
XDIV
26
XEN
32
25
XMODE
8
XOUT
31
XTAL1
XTAL2
30
9
_PDN
_RESET
10
_SEN
2
5
BQP
14
GND
33
PGND
24
RFIAN
23
RFIAP
20
RFIDN
19
RFIDP
22
RFIEN
21
RFIEP
RFIPN
18
17
RFIPP
RFOH
16
15
RFOL
1
SCLK
SDIO
3
12
VDD1
U402
SI4210D
AFC
27
6
BIN
7
BIP
4
BQN
1p
C409
5.6nH
L405
270K
R427
C407
1p
1.2p
C410
1000p
C429
1.2p
C418
27nH
L402
22K
R426
0.1u
27p
C426
GND9
7
GSM_IN
8
GSM_OUT
TX_ENABLE
3
VBATT
4
6
VRAMP
V_IO
C415
GND15
25
GND16
GND17
26
27
GND18
GND19
28
11
GND2
GND20
29
30
GND21
GND22
31
32
GND23
GND3
12
GND4
13
GND5
14
15
GND6
GND7
16
GND8
17
18
2
BAND_SELECT
DCS_PCS_IN
1
DCS_PCS_OUT
9
5
GND
10
GND1
GND10
19
20
GND11
21
GND12
GND13
22
GND14
23
24
VBAT
U401
RF3166
C408
33u
0.1u
C411
11
R417
820
9
GND2
13
GND3
16
18
GND4
19
GND5
20
GND6
10
GSM1800_1900_TX
GSM1800_RX1
5
6
GSM1800_RX2
GSM1900_RX1
7
8
GSM1900_RX2
12
GSM850_900_TX
GSM850_RX1
1
2
GSM850_RX2
3
GSM900_RX1
GSM900_RX2
4
VDD
DGM081
FL401
ANT
17
CTRL1
15
CTRL2
14
GND1
15K
R425
1.2p
C412
R410
300
C423
RF2.85V
C406
390p
1p
C431
1000p
R412
300
TEMPSENSE
TCXO_OUT
RFOH
RFOL
TCXO_OUT
AFC
RXQN
RXIP
RXIN
TXQP
TXIN
TXQN
TXIP
SCLK
SENB
PDNB
26MHz
SDI
RFOL
RFOH
RXQP
PA_BAND
7. CIRCUIT DIAGRAM
Summary of Contents for MG810c
Page 1: ...Date May 2006 Issue 1 0 Service Manual MG810c MG810d Service Manual Model MG810c MG810d ...
Page 3: ... 2 ...
Page 5: ......
Page 46: ...4 TROUBLE SHOOTING 45 WR CS ADSSSSS CS ADSSSSS WR ...
Page 52: ...4 TROUBLE SHOOTING 51 G 1 Speaker Receiver Trouble Shooting Common Path ...
Page 53: ...4 TROUBLE SHOOTING 52 G 2 Speaker Receiver Trouble Shooting Acoustic Path ...
Page 54: ...4 TROUBLE SHOOTING 53 G 3 Speaker Receiver Trouble Shooting MP3 AAC Path ...
Page 55: ...4 TROUBLE SHOOTING 54 G 4 Speaker Receiver Trouble Shooting FM Radio Path ...
Page 56: ...4 TROUBLE SHOOTING 55 G 5 Main Mic Path Trouble Shooting ...
Page 57: ...4 TROUBLE SHOOTING 56 G 6 Ear Mic Receiver Path Trouble Shooting ...
Page 58: ...4 TROUBLE SHOOTING 57 G 7 Ear Mic Mic Path Trouble Shooting ...
Page 59: ...4 TROUBLE SHOOTING 58 G 8 Vibrator Trouble Shooting ...
Page 60: ...4 TROUBLE SHOOTING 59 4 2 RF Part Troubleshooting A RF Receiving Path Trouble Shooting ...
Page 64: ...4 TROUBLE SHOOTING 63 E RF Receiving Path Trouble Shooting FEM 1 ...
Page 65: ...4 TROUBLE SHOOTING 64 F RF Receiving Path Trouble Shooting FEM 2 ...
Page 67: ...4 TROUBLE SHOOTING 66 H RF Transmitter Path Trouble Shooting ...
Page 73: ...4 TROUBLE SHOOTING 72 N RF Transmitter Path Trouble Shooting FEM 1 ...
Page 74: ...4 TROUBLE SHOOTING 73 O RF Transmitter Path Trouble Shooting FEM 2 ...
Page 84: ...6 Block Diagram 83 6 Block Diagram ...
Page 85: ... 84 ...
Page 96: ... 95 8 PCB LAYOUT ...
Page 97: ... 96 8 PCB LAYOUT ...
Page 98: ... 97 8 PCB LAYOUT ...
Page 99: ... 98 8 PCB LAYOUT ...
Page 100: ... 99 8 PCB LAYOUT ...
Page 101: ... 100 8 PCB LAYOUT ...
Page 111: ... 110 ...
Page 113: ... 112 ...
Page 133: ...Note ...
Page 134: ...Note ...