- 91 -
Date
Name
8
D
Approved
Checked
Sign & Name
LG Electronics Inc.
1
NO.
6
Section
RF
B
5
3
5dB
Sheet/Sheets
DRAWING
Date
LGIC(42)-A-5505-10:01
A
LG Electronics Inc.
9
2
3
5
10
NAME
DRAWING
7
4dB
4
E
VER-1.1
Designer
4
MODEL
A
Iss.
4.7u
5 / 6
BUTTERFLY(KG225)
2
Notice No.
1
27p
C516
C547
C515
22p
22
GND11
GND12
23
24
GND13
4
GND2
6
GND3
GND4
7
16
GND5
GND6
17
18
GND7
GND8
19
20
GND9
14
PCS_RX1
PCS_RX2
15
VC_DCSPCS
3
VC_EGSM
9
HWXQ511
ANT
1
DCSPCS_TX
5
12
DCS_RX1
DCS_RX2
13
10
EGSM_RX1
EGSM_RX2
11
8
EGSM_TX
2
GND1
GND10
21
220
R507
2V75_VVCXO
FL500
1M
R519
39p
C523
1000p
C538
R505
24
30
R509
L500
5.6nH
1000p
C543
R560
0
100
R520
R521
C534
15K
22p
22p
C510
4
BYP
EN
3
GND
2
1
IN
5
OUT
VBAT
RF2V85
TP501
MIC5255-2.85BM5
U503
10p
C514
0.01u
C546
27p
C525
C505
1.8p
C531
27p
C528
1.5p
C535
0.1u
C529
1.5p
0
R516
2V75_VVCXO
2V8_VEXT
C537
1000p
NA
R512
C527
1.5p
L502
RF2V85
27nH
R522
0
100p
C512
C511
0.1u
C545
12
VDD1
VDD2
13
28
VDD3
VDD4
29
VIO
11
XDIV
26
XEN
32
25
XMODE
8
XOUT
31
XTAL1
30
XTAL2
9
_PDN
_RESET
10
_SEN
2
1u
4
BQN
5
BQP
14
GND
33
PGND
24
RFIAN
23
RFIAP
20
RFIDN
19
RFIDP
22
RFIEN
21
RFIEP
18
RFIPN
17
RFIPP
RFOH
16
15
RFOL
1
SCLK
SDIO
3
U501
SI4210
AFC
27
6
BIN
7
BIP
TP500
R561
0
2.2u
C536
NA
C517
L599
TP502
12nH
VBAT
39p
C526
U502
SN74AHC1GU04DCKR
R500
100
C542
NA
R503
0
R523
100K
R502
5.6nH
C519
0.01u
0.01u
C520
12p
C502
C501
RF2V85
0.01u
33p
C504
C503
18p
C500
22u
C518
NA
27p
C506
C524
27p
C532
2p
R501
100
R514
NA
R518
270p
C541
0
0
R511
180
R508
1.5p
6.8nH
C533
GND
2
OUT
3
4
VCC
1
VCONT
L501
39p
X500
26MHz
C522
2
VCC1A
6
VCC1B
R513
1K
ENABLE
18
GND1
5
GND2
7
8
GND3
GND4
9
10
GND5
GND6
12
13
GND7
GND8
14
GND9
16
4
GSM_IN
11
GSM_OUT
21
PGND
19
RSVD_GND
VAPC
20
17
VBATT
SKY77328
U500
BS
1
DCS_PCS_IN
3
15
DCS_PCS_OUT
C507
10p
33p
C508
R588
2.2nH
C521
27p
C509
NA
0
R515
270p
C540
KMS-506
SW500
ANT
G1
G2
RF
R510
180
R506
220
1.5p
C588
27p
C530
26M_CAM
C544
2.2u
PA_EN
26M_MIDI
26M_DBB
RF_RST
CLKON
26M_DBB
PA_BAND
TX_RAMP
ANT_SW2
S_DATA
ANT_SW1
S_EN
S_CLK
IN
IP
QN
QP
AFC
RF_PWR_DWN
7. CIRCUIT DIAGRAM
Summary of Contents for KG225
Page 1: ...Date April 2006 Issue 1 0 Service Manual Model KG225 Service Manual KG225 M O B ILE CAM E R A ...
Page 3: ... 4 ...
Page 19: ...3 TECHNICAL BRIEF 20 Figure 3 4 SYSTEM INTERCONECTION OF AD6720 EXTERNAL INTERFACE ...
Page 66: ...4 TROUBLE SHOOTING 67 4 12 KEY backlight Trouble Q300 R359 TEST POINT Figure 21 ...
Page 79: ... 80 5 DOWNLOAD B Multi Download Procedure 1 Run GSM Multi Download program and select Setting ...
Page 84: ... 85 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM ...
Page 85: ... 86 ...
Page 92: ... 93 KG225 8 PCB LAYOUT ...
Page 93: ... 94 KG225 8 PCB LAYOUT ...
Page 101: ... 102 10 STAND ALONE TEST Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
Page 109: ... 110 ...
Page 125: ...Note ...
Page 126: ...Note ...