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_8.4 SCHEMATICS INTERFACE_BD_MCU AND FUNCTION KEYACER_LCD_G24_
PCB No.
LED B ACTIVE LOW_
LED A ACTIVE LOW_
PLUS
MINUS
SELECT
POWER
MENU
GND
A12
A13
A14
WE
PSEN
A1
A2
A3
A4
A5
A6
A7
MALE
MALE
PSEN
LED A_
MSDA
MSCL
UP
DOWN
MENU
SELECT
ISP
A14
A8
A3
A0
A7
A13
A2
A6
A12
A1
A18
A10
A15
A11
A16
A9
A17
A5
A4
WE
MAD0
MAD1
MAD2
MAD3
MAD4
MAD5
MAD6
MAD0
MAD1
MAD2
MAD3
MAD4
MAD5
MAD6
MAD7
MAD7
A0
RST
E
SELECT
AD2
AD0
A10
A9
AD3
A11
A8
AD1
SDA1
SDA2
SCL2
SCL1
A17
A16
A18
A15
SCL1
SDA1
SCL2
SDA2
TRST
TDO
TD
TMS
TCK
LED B_
DVI SDA 3V__
VGA SCL 3V__
DVI SCL 3V__
DVI SDA 3V__
DVI SCL 3V__
VGA SDA 3V__
VGA SCL 3V__
MAD4
MAD5
MAD6
MAD2
MAD0
MAD1
MAD3
MAD7
VGA SDA 3V__
VGA SDA 3V_ _ TXD
RXDVGA SCL 3V__
MSCL
MSDA
WP
TXD
RXD
ISP
TD
INT
TCK
TMS
HP DET DVI__
HWRESET
TDO
ALE
TRST
WP
DVI DET_
POWER
DSUB DET_
DVI HDMI SW__
LED A_
LED B_ LED BLUE_
LED AMBER_
DOWN
EXE
LED BLUE_
POWER
LED AMBER_
MENU
UP
SELECT
BKLT EN_2
HWRESET6
INT6
LCD EN_2
DSUB DET_4
WR 6
ALE6
USB EN_8
WP EN_4
USB DET_8
RD6
AUDIO DET_2
AUDIO EN_2
OFF 2
DVI SCL_56,
VGA SCL_4
DVI DET_5
DVI HDMI SW__5
HP DET DVI__5
CAM MIC DIAG__8
GND
+3V3
GND
GND
+_3V3 VDD
GND
GND
+_3V3 VDD
GND
GND
+_3V3 VDD
+_3V3 VDD
+_3V3 VDD
+_3V3 VDD
+_3V3 VDD
GND
+_3V3 VDD
GNDGND
+_3V3 VDD
+_3V3 VDD
+3V3
GND
+_3V3 VDD +3V3
GND
+_3V3 AVDD
+_3V3 AVDD
+_3V3 VDD
GND
+_3V3 VDD
+5V
+5V
+_3V3 VDD +_3V3 VDD
+_3V3 VDD
+5V
+5V
GND
+_3V3 VDD
GND
+_3V3 VDD
+_3V3 VDD
+3V3
GND
GND
+5V
+3V3
+5V
+3V3
GNDGND GND
GND
GNDGND
+_3V3 VDD
GND
R344 0
R481 0NC()
I306
W79L659A25FL
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
68
69
70
71
72
73
74
75
76
77
78
79
80
98
99
100
P02AD2./
P0 1 AD1./
P0 0 AD0./
VDD
VDD
AVDD
P7 4.
P7 5.
P7 6.
P7 7.
TCK
TMS
TD
TDO
TRST
P4 2.
P1 0 PWM0./
P1 4.
NC
NC
NC
NC
P1 5.
P1 6.
P1 7.
P5 0.
P5 1.
P5 2.
P5 3.
RST
P5 4.
P5 5.
P5 6.
P5 7.
P6 5 SDA1./
P6 4 SCL1./
EA
/EA
P4 1.
ALE
/PSTN
P2 7 A15./
P2 6 A14./
P2 5 A13./
P2 4 A12./
NC
NC
NC
NC
NC
P2 3 A11./
P3 0 RXD./
P4 3.
P3 1 TXD./
P3 2 INT0./
P3 3 INT1./
P3 4T0.
P35T1./
P36WR./
NC
NC
NC
NC
NC
P37RD./
XTAL2
XTAL1
NC
AVSS
VSS
VSS
NC
P4 0.
P7 0.
P7 1.
P7 2.
P7 3.
P6 0.
P6 1.
P6 2.
P6 3.
P20A8./
P2 1 A9./
P2 2 A10./
P6 6 SCL2./
P6 7 SDA2./
P0 7 AD7./
P0 6 AD6./
P0 5 AD5./
P0 4 AD4./
NC
NC
NC
NC
NC
NC
P0 3 AD3./
P1 1 PWM1./
P1 2 PWM2./
P1 3 PWM3./
R311 47K NC.()
TP53
R522 47K NC.()
R524 0
TP90
TP29
TP105
R324 0R
R337
10K
R330
10K
TP96
TP80
TP87
TP73
R525 47K NC()
TP62
TP601
R470 47K NC.()
TP33
Q317
MMBT3904
R313 47K NC.()
TP109
P302
JWT A2001WV2 4--
1
2
3
4
1
2
3
4
TP500
TP99
TP91
R482 0NC()
TP25
C321 22p
TP67
R323 0R
TP88
TP30
Q318
2SK3018
2
3
1
TP83
TP64
TP78
TP42
R510 X47K.
TP92
R341
10K
R345 0
TP54
C317
01u.
TP117
C330
01u.
TP468
R314 47K NC.()
R471 47K NC.()
TP81
R483 0NC()
TP49
R478 47K NC.()
FB304
PBY201209T 300Y S--
TP501
TP102
TP31
C320
01u.
I305
STL8110PCH300
3
2
1
VCC
OUT
GND
R325 100
TP93
C487
01u.
R512
47KNC.()
C328
01u.
TP66
TP63
TP43
R509 X47K.
TP82
FB339
PBY201209T 300Y S--
C322 22p
TP71
TP540
Q303
MMBT3906
R484 0NC()
R479 47K NC.()TP89
R315 47K NC.()
R526
10K NC()
TP94
R351 1K
C319
01u.
TP442
R476 47K NC.()
TP502
TP103
TP65
TP74
TP72
TP69
I307
W39L040AP70Z
12
11
10
9
8
7
6
5
27
26
23
25
4
28
29
3
2
13
14
15
17
18
19
20
21
24
31
16
32
30 22
1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
IO1
IO2
IO3
IO4
IO5
IO6
IO7
IO8
OE
WE
VSS
VCC
A17 CE
A18
R339
10K
R347 1K
R331
10K
R511 X47K.
TP44
TP463
TC7SU04FU
I308
2 4
5
3
R357 10K
TP439
C323
01u.
P303 JWT A2001WV2 10p--
1
2
3
4
5
6
7
8
9
10
TP46
Q321
2SK3018
2
3
1
TP110
C326
01u.
TP100
R336
10K
R316 47K NC.()
I309
24LC16B
1
2
3
4 5
6
7
8
A0
A1
A2
VSS SDA
SCL
WP
VCC
TP116
TP68
TP55
TP503
R342
10K
TP429
TP77
R348 1K
TP108
R346 1K
TP431
R473 47K NC.()
TP101
TP438
R361 10K
TP57
TP84
TP75
TP469
R485 0NC()
TP56
R354 4 7K.
Q320
2SK3018
2
3
1
C324
01u.
R508 X47K.
R506 4 7K.
TP97
TP600
C332
01u.
R317 47K NC.()
C318
10u 50V NC/()
TP432
TP465
R513
47KNC.()
TP440
TP26
TP467
R349 1K
R474 47K NC.()
X301
24MHz
R468 47K NC.()
TP85
R477 47K NC.()
I304
74LVC373A
3 2
4 5
7 6
8 9
13 12
14 15
17 16
18 19
1
11
20
10
D0 Q0
D1 Q1
D2 Q2
D3 Q3
D4 Q4
D5 Q5
D6 Q6
D7 Q7
OC
G
VCCGND
C329
01u.
TP60
C331
01u.
TP59
R328 0
R360 4 7K.
R320 0RR523 0
TP433
TP51
R472 47K NC.()
R352
10K
R333
47KNC.()
R332
10K
R329
10K
TP27
R340
10K
R475 47K NC.()
R507 4 7K.
R318 47K NC.()
R327 100
TP441
Q319
2SK3018
2
3
1
TP95
R469 47K NC.()
TP434
TP61
TP47
Q304
MMBT3906
Q316
MMBT3904
TP50
R514
47KNC.()
C316
01u.
TP70
Q324
MMBT3904 NC()
R515
47KNC.()
C325
01u.
R350 1K
R319 0R
TP48
TP24
TP28
R335
47K.
R467 0
TP79
R343
10K
C327
01u.
R338
10K
R312 47K NC.()
R334
47KNC.()
TP52
TP113
TP58
TP76
R322
47KNC.()
TP32
R321
47K.
TP98
TP435
TP86
R520
10K
C488
01u.
AD 0 3[..] 6
DVI SDA_56,
VGA SDA_4
6832194600P0
1234567 8910111213
1234567 8910111213
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38
ACER G24