LG F7100 Service Manual page 92

8. CIRCUIT DIAGRAM
1 2
BOARD CONNECTOR
2V8_VMEM
A
2V55_VAN
VBAT
CN302
1
2
MIC_N
3
MIC_P
4
5
KEY_COL2
6
KEY_COL1
7
KEY_COL0
8
KEY_BL1
9
10
11
12
13
14
15
C304 C305
VA301 VA302 VA303 VA304
1u 1u
B
C306
1u
C
LCD_BL
LCD_CS
ADD01
DATA00
DATA02
DATA04
DATA06
DATA08
DATA10
DATA12
DATA14
DIM_CNTL
C313 C314 C315 C316 C317 C318 C319 C320 C321
27p 27p 27p
27p 27p 27p 27p 27p 27p
D
AICHI STEEL COMPASS
2V8_VMEM
U304
1
GND1
R361
2
COMPASS_CS CS
C355 1K C356
3
27p 27p
VDD
AMI201
C358
E 10u
1 2
LGIC(42)-A-5505-10:01
3 4 5
VBAT
C352 C353
47p 1uF
<- TO KEYPAD
R305
BAT_TEMP
0
C354
27
1uF
30
29
KEY_COL4
28
KEY_COL3
27
KEY_ROW4
26
KEY_ROW3
25
KEY_ROW2
24
KEY_ROW1
23
KEY_ROW0
22
SLIDE
21
POWERKEY
20
KEY_BL2
19
18
17
VA305
16
VA306 VA308 VA310 VA312
VA307 VA309 VA311 VA313
25
I/O CONNECTOR
128 x 160 LCD CONNECTOR 2V8_VMEM
CN303
1
R328 1K 2
R329 1K 3
R333 1K 4
R335 1K 5
R337 1K 6
R340 1K 7
R342 1K 8
R344 1K
9
R346 1K 10
R348 1K 11
12
13
C322 C323 C324 C325 C326 C327 C328 C329 C330 C331 C332
C333
27p 27p 27p 27p 27p 27p 27p 27p 27p 27p 27p 27p
6
GND2
R363 R364
5
OUT COMPASS_OUT
1K 1K C357
4 R500
(1%) (1%)
0.1u
XYIN
3.9K
(1%)
R365
COMPASS_XYIN
C359 1K C360
27p 27p
3 4 5
6 7
INDICATOR LED
TP301
2V8_VMEM
CN310
28 VCHARGE
R301 R302 R303 R304
26
100K 100K 100K 100K
24
R306 47
23 USC4
C309
22
21
0.1u
R307 47
20 USC5
19
R308 47
18 USC6 INDLED_R1
R355 47
17 USC3
16
R311 47
15 MON_TX
R312 47
C311
14 USC2
R313 47
13 USC1
0.1u
12
11
R314 47
10 MON_RX
9
R315 47
8 USC0 RPWRON
7
R316 47
6 RPWRON
5
4
R317 47
3 DSR
2
C307
1
39p
29
INDLED_R2
RPWRON
VBAT
26
25
24 R330 1K
23 R334 1K
22 R336 1K
21 R338 1K
20 R341 1K
19 R343 1K
R345 1K
18
17 R347 1K
16 R349 1K
15
14
C334 C335 C336 C337 C338 C339 C340 C341 C342 C343 C344
27p 27p 27p 27p 27p 27p 27p 27p 27p 27p 27p
SP304
Section
Designer
Checked
Approved
Iss. Notice No. Date Name
LG Electronics Inc.
- 93 -
8 9 10
VBAT
C308
R318 R319
100 270 27p
3 1
SML-521MUWT86
4 2 LED301
VCHARGE VBAT
SP302 SP303
C310
2
R324
0.1u
VCC
10K
6 1
6 NO
R326 R327
COM 5 5 2
INDLED_G1
4 NC
10K 10K
4 3
R332
R331
R339
47K 47K
GND IN
IMX9T110 Q301
4.7K
3 1 Q302
MAX4599EXT-T
VBAT
R350 0
R351 R352 C312
27p
100 270
3 1
VCHARGE VBAT
SML-521MUWT86
4 2 LED302
R370
C370 C371
10K
0.1u 0.1u
VCC
6 NO
R371
COM 5
4 NC 6 1
10K
R372
C372
R353
5 2
4.7K
0.1u INDLED_G2
GND IN
10K
Q304 4 3
R373 R354
MAX4599EXT-T
47K 47K
IMX9T110 Q303
R374
0
LCD_RST
WR
DATA01
DATA03
DATA05
DATA07
DATA09
DATA11
DATA13
DATA15
LCD_ID
C345 C346 C347 C348 C349 C350 C351
27p 27p 27p 27p 27p 27p 27p
Date Sign & Name
MODEL F7100
05/21
LEE S.Y.
2004
05/21 KIM B.Y.
2004 YOUN K.J. DRAWING
I/O conn,LCD conn
NAME
05/21
CHO J.G.
2004
DRAWING
V1.1
NO.
LG Electronics Inc.
A
B
C
D
Sheet/
Sheets
3/4