Memory & Mmi - LG G5300 Service Manual

8. CIRCUIT DIAGRAM
8.2 MEMORY & MMI
1 2
R201 0
13MHz
_MIDI_RST
2V8_VMEM
ADD0
_RD
_MIDI_CS
A
R244 10K
_WR
_MIDI_IRQ
R244 R212
DATA8
16POLY 10K 10K
DATA9
DATA10
40POLY NC 0
DATA11
DATA12
DATA13
DATA14
DATA15
C212
2V8_VMEM R210 3.3K
1000p
C214 0.1u
R214 R212
0
10K
R215
C218 0
0.1u
B
VBAT 3V3_VMIDI
U202 LP3981ILD-3.3
1 6
VOUT VEN
2 5
VIN BYPASS
C220
3 4
2.2u VOUT_SE GND1
(2012)
GND2
C222
4.7uF_2012
C
C224
NC
HEADSET_MIC_P
3V0_VLCD
U205
MAX4695EGC
D
10
N_C2
AUXIP GOM1 GOM2
11
IN1
12
HFK_EAR
HFK_EAR CONNECTION
0 HEADSET
1 HFK
HEADSET_SPK_P
JACK_DETECT
E
HEADSET_MIC_P
C235
47p
1 2
LGIC(42)-A-5505-10:01
3 4
1
11
CLK1 HPOUT_R
4
10
_RST C201
30 HPOUT_L R203
0.01u
A0 VOUTNORP
33K
31 12
EQ1
_RD
29
_CS
5
13
EQ2
NC
VOUTNORN
28
_WR R205
3
82K
_IRQ
C205
390p
27 14
EQ3
D0
26
2
D1 LED
25
19
D2 MTR
24
D3
U207
23
D4
YMU762
22 CN201
17
D5
SPOUT1
21 R207 0 SPK+
D6
20
D7
R209 0
SPK-
PLLC SPOUT2
6
18
Speaker
3V3_VMIDI
VREF
9
SPVDD C215 C216
15
47p 47p
IOVDD
32
VDD
7
C217
0.1u
16
VSS SPVSS
8 3V0_VLCD
U203 MAX4624EUT-T
1 6
HFK_EAR IN NO
2 5
VCC COM
VMIDI_CTL
3 4
GND NC
3V0_VLCD
C221
HFK_EAR CONNECTION
0.1u
U204 MAX4624EUT-T
0 HEADSET
1 6
1 HFK
HFK_EAR IN NO
2 5
VCC COM
3 4
GND NC
C223
0.1u
3V0_VLCD
R220
2.2K
3V0_VLCD
C225
3V0_VLCD
R221
10uF
3.3K
(2012) R222
1M
U206 MAX9075EXK-T
5
VIN- 4
C227 C228 C229
VCC 1
HOOK_DETECT 27p 27p 27p
VIN+ 3 OUT
GND
2
R233
510K
C232
0.1u
R234
C233 KEY_BACKLIGHT
6 R235
N_C1 0.1u
1.5K
0
AUXIN
5
IN2
R237
4
2.2K
HFK_AUXIN
HFK_AUXIP
(2012)
R240 Headset jack
C234 10uF 4.7
5
1
3
4 J201
L201
100nH
C236 C237
R241
47p 47p
1M
3 4
5 6 7
CN202
1
C203
39p
2
C206 C207
39p 39p
CLOSE TO RECEIVER
1
2
HFK_AUXOP C219
AUXOP
HEADSET_SPK_P
R218
VIBRATOR
1.5K
HFK_AUXON R219
100K
AUXON
VBAT
KEY BACKLIGHT
VBAT
C230 C231
27p 27p
LD201 LD202 LD203 LD204 LD205 LD206
C238 C239 C240 C241 C226
27p 27p 27p 27p 27p
Q202 IMX9T110
1 6
2 5
R236
100K
3 4
R238 R239 SP207
10 10
Iss. Notice No. Date Name
5
- 114 -
8 9
2V45_VAN
R202
1K
C202 C204
10u 10u
R204
(2012) (2012)
2.2K
C208 0.1u
R206
VINNORP
C209 L202 100nH
100
C210
39p
39p
C211 0.1u
R208
VINNORN
L203 100nH
100 C213
R211
39p
2.2K
3
R213
Q203
2
MIC_ONOFF
2SC5585
1.5K
1
CLOSE TO MIC
VIBRATOR
VBAT
CN203
1
0.1u
2
R217
15
3
2
Q201
2SC5585
1
VBAT
C242
0.1u
U201
MAX4599EXT-T
Q204
NO 6 R252
IMX9T110
R253
5 COM
6 1
R254
NC 4
1.5K
5 2
4 3
R250
RPWRON
0
R251
ONNOFF
NC
Section Date Sign & Name
MODEL
12/02
Designer SW KIM
2002
YK KIM
Checked
DRAWING
NAME
Approved NS KIM
DRAWING
LG Electronics Inc.
NO.
10
A
MIC201
1
2
mic
B
C
LCD BACKLIGHT
0
KEY_BACKLIGHT
10K
VCHARGE
C243
0.1u
D
Sheet/
Sheets
2/4
BB
VER 1.4
LG Electronics Inc.