LG KG245 Service Manual page 103

7. CIRCUIT DIAGRAM
1 2
2V5_JACK
CLOSE TO EARJACK
R201
1K
A
R204
C203
1.5K
AUXIN
0.1u
C206
22u
C209
NA
JACK_DETECT
L INSERT
H REMOVE
C214
AUXOP
JACK_DETECT
(GPIO_45) AUXIP
C216 0.1u
C219
39p
B
64 POLY MIDI IC(MP3 Ringtone)
1V8_MIDI_CORE 2V85_VCAM
FB201
C223 C224 C225 C226
0.1u 4.7u 4.7u 0.1u
D3
_MIDI_RST _RST
R229 0
C E2
26MHz CLKI
D2
PLLC
H4
_MIDI_CS _CS__SS
F1
ADD00 A0
E3
R230
ADD01 A1
J5
6.8K _WR _WR_SCK
G4
_RD _RD_SI
G3
DATA00 D0
J2
C235 C250
DATA01 D1
H2
2200p 100p
DATA02 D2
G2
DATA03 D3
H1
DATA04 D4
J1
D4_H1
F3
DATA05 D5
G1
DATA06 D6
F2
DATA07 D7
J6
SO
H5
SMODE
G5 U207
IFSEL
G7
MTR YMU792
J8
MTR_G7
D
(EUSY0291001)
H8
LED0
H7
LED1
J7
LED2
E7
_MIDI_IRQ _IRQ
H6
GPIO
G8
BCLK
F7
LRCK
F8
SDIN SPOUT1_B7
E6
MCLK
D6
TESTI0
F6
TESTI1
G6
TESTI2
C7
TESTI3
E
1 2
LGIC(42)-A-5505-10:01
3 4 5
2V8_VEXT 2V5_JACK
U201
1 4
GND NC
2 3
Vin VOUT
NCP563Q25T1
C201 C202
HOOK_DETECT 0.1u 10u
(1608)
(GPIO_39)
J201
33u
ONNOFF
7502-2.5G-SB1-A
(3 pole, ENJE0003501)
R225 C220
1M 39p
VBAT
VBAT
U204
MAX4684EBC_T
C221 C222
C4 C2
4.7u 0.1u SPK_P NO1 IN1
A4 A2
SPK_N
NO2 IN2
C1 C3
RCV_P NC1 COM1
A1 A3
C227 C228 RCV_N NC2 COM2
0.1u 0.1u
C229
1u
C2
TXOUT
A2
EXC
SPK_RCV_SEL
C6
EXTOUT L
RECEIVER
H
SPEAKER
B5
BBL
B6
HPOUTL
C251
C5
BBR SPKP_P
0.1u
A6
R242
HPOUTR
20K
B3
HPC
R234 C241
B4
EQ1
24K 0.01u
A3
EQ2
R239 C242
A4
82K
EQ3 390p
A7
SPOUT2 SPK_N
B7
SPOUT1 SPK_P
A8
C243
R241
C3
RXIN SPKP_P
A1
RXIN_C3 22n NA
C4
EXTIN
D4
INDEX
C244 C245 C246 C247
47p 47p 47p 0.033u
Iss.
3 4 5
6 7
VCHARGE VBAT
C210 R209 ERHY0007007
1u 15 (1%,1/8W)
VINNORP
R216
Q201
1K
6 1
3
Q202 VINNORN
R215 R220
5 2 2
2SC5585
10K 7.5K
4 3 1
R223 R226
UMX1NTN
10K 20
BLUETOOTH
VBAT
SPK_RCV_SEL
U203
SPK_RCV_P
VIN VOUT
R228 3
SPK_RCV_N GND BGND
330 2
BT_EN STBY
1
BH28FB1WHFV
C232 C231 C230
0.1u 2.2u 15p
2V8_VBT
2V8_VMEM
C236
0.1u
5
1
PCM_TX VCC
4
PCM_SYNC8
3
USC3
GND
U205
2
TC7SH08FS
C2
PCM_EN
IN1 NO1
A2
IN2 NO2
C3
USC1 COM1 NC1
A3
USC2
COM2 NC2
R240
10K
Section Date
Designer
Checked
Approved
Notice No. Date Name
LG Electronics Inc.
- 104 -
8 9 10
2V5_VMIC
R202
1K
R206 C208 C204
10u
2.2K 39p
R210 100
C211
C212
39p
39p
C215 0.1u
R217 100
R221
C217 C218
2.2K 39p 39p
CLOSE TO MIC
2V8_VBT
ANT201
GND1
R227
FEED GND2
0
AMAN542015LG02
4
L201 C248 (SNGF0008801)
6
NC NA NA
5
C233 C234
2.2u 15p
2V8_VBT
16 22
_BT_RST RESETB VDD_1_8V
21
VDD_DIG
3
C237 VDD_VREGIN
1
L202
NA PIO0 C249
2 4
22nH
PIO1 GND1 15p
7 6
C240 PIO2 GND2
8 11
0.1u
PIO3 GND3
9 25
PIO4 GND4
10
PIO5
27 R232 47
UART_TX DEBUG_RX
24 R233 47
C4
PCM_RX UART_RX DEBUG_TX
28 23
NC UART_RTS
26
A4
PCM_TX UART_CTS
C1 13 19 R235 47
USC_1 SPI_CLK PCM_IN PCM_TX
14 17 R236 47
SPI_CSB PCM_OUT PCM_RX
12 18 R237 47
A1
USC_2 SPI_MOSI PCM_SYNC PCM_SYNC8
15 20
R238 47
SPI_MISO PCM_CLK USC0
U206
M201
MAX4717EBC-T
LBMA-2C67B2
Sign & Name
Sheet/Sheets
BEETLE
MODEL
(KG245)
DRAWING AUDIO / BLUETOOTH
NAME
/ PRECHARGE
DRAWING
REV.1.0
NO.
A
A
MIC
(BSE, -42dB, FPCB Type)
B
B
C
C238 C239
2.2u 2.2u
D
2/6
LG Electronics Inc.