62
U310
AT29LV040A-15JC
5
6
7
8
9
10
11
12
13
14 15 16 17
18 19 20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
A7
A6
A5
A4
A3
A2
A1
A0
IO0
IO
1
IO
2
GN
D
IO
3
IO
4
IO
5
IO
6
IO7
CE
A10
OE
A11
A9
A8
A13
A14
A17
WE
VC
C
A18
A16
A15
A12
U302
GTL540L16
18
17
28
41
38
37
39
54
23
24
25
26
29
30
31
32
33
34
22
35
2
4
5
7
21
20
16
19
1
14
27
3
9
43
49
6
12
46
52
8
10
11
13
42
44
45
47
48
50
51
53
15
36
RAS
CAS
GND
GND
CLK
CKE
DQMU
GND
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
DQ0
DQ1
DQ2
DQ3
BS1/A12
BS0/BA
WE
CS
VCC
VCC
VCC
VCCQ
VCCQ
VCCQ
VCCQ VSSQ
VSSQ
VSSQ
VSSQ
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQML
NC
3.3VM
MD28
MD13
MRASNN
MD23
MA12
Note: for ISP function
MD9
TP313
CPUP25
MDR27
MDR24
CPUP17
SDA
3,4,6,9,11,14,15
CPUP07
MRASNN
MDQMH1
MAR12
R341
100K 1/16W
R355 22 1/16W
CPUP00
WP
MAR13
3.3VM
Remote
1
ROMA3
TESTMODE
MD18
DQMH0
RN31022 1/16W
1
2
3
4
8
7
6
5
CPUP24
MRASNN
MDR17
MAR5
R326
0 1/16W
R338
10K 1/16W
PWR_ON
12
CPUP23
MD15
CPUP10
RN31722 1/16W
1
2
3
4
8
7
6
5
CP
UP
0
3
MA2
MD12
MCSNN
MDR20
MDR18
MD30
MD24
R357
10K 1/16W
1
3.3VM
CP
UP
0
4
MWENN
MA8
MWENN
MAR11
MDR14
WENN
XTALIRTC
MDR26
R345 22 1/16W
CP
UP
0
2
RO
MWRZ
MD7
MDR3
MAR2
R354
75 1/16W
R350
4.7K 1/16W
SDCLK
MD31
MCSNN
R353
75 1/16W
MAR10
C372
0.1uF
3.3VM
CPUP22
R334
1M 1/16W
MD19
MD22
MDR4
MAR10
MA3
R333
0 1/16W
CPUP21
MDR23
RN31422 1/16W
1
2
3
4
8
7
6
5
MDQML0
VD_RST
MAR14
CP
UP
2
4
CPUP22
PANPWR_ON
MDR3
MDR18
43
CASNN
MA14
Q300
AO4403
1
2
3
4
8
7
6
5
S1
S1
S1
G1
D1
D1
D1
D1
3.3VM
PAN_PWR
1,13
CPUP20
MDR29
MD10
+
C371
1uF/50V
PANPWR_ON
MDR14
MAR3
MDR31
MD8
MA4
BL_ADJ
1
MD29
MDQMH0
CKER
R336
10K 1/16W
PSENZ
CPUA17
MA9
MWENN
RN31622 1/16W
1
2
3
4
8
7
6
5
MD20
MD13
3.3VM
CPUP00
DQML1
ROMA3
DQML1
C381
0.1uF
49
12VS
CP
UP
0
5
MDR10
MD1
R374
100 1/16W
ROMA2
CKER
MAR0
CPUP12
L300
NC
RN30022 1/16W
1
2
3
4
8
7
6
5
MD26
MD30
MDR30
MAR11
C374
0.1uF
Misc
U300B
SPV301A
J3
H1
L3
J1
K3
J2
K2
K1
L2
L1
M1
M3
M2
N1
N2
N3
AE3
AC7
AD5
AD7
AF3
AD6
AE4
AF4
AE5
AF5
AE6
AF6
H4
F1
G3
G2
J4
G1
H3
H2
P1
P2
P3
P4
R1
R2
R3
R4
F3
AC21
A5
E2
T2
C5
D5
C2
D2
F4
G4
T1
E1
F2
D3
E3
P00
P01
P02
P03
P04
P05
P06
P07
P20
P21
P22
P23
P24
P25
P26
P27
ROMA0
ROMA1
ROMA2
ROMA3
ROMA4
ROMA5
ROMA6
ROMA7
ROMA16
ROMA17
ROMA18
ROMWRnn
P10
P11
P12
P13
P14
P15
P16
P17
P30-RXD
P31-TXD
P32-INT0nn
P33
P34-T0
P35-T1
P36-WRnn
P37-RDnn
HWRST
EXTMCLK
EXTDCLK
EOSDCLK
IRRECV
ADC0
ADC1
USB-DP
USB-DM
ALE_SCL
PSEN_SDA
TESTMODE
XTALI
XTALO
XTALIRTC
XTALORTC
C384
0.1uF
CP
UP
0
1
MDR6
MA8
R340
NC
C373
0.1uF
MAR6
MDR8
MDR25
TP314
CPUP04
MD2
R329
100 1/16W
C385
0.1uF
PSENZ
MD4
MA4
9
MDR11
L309
600 OHM
CP
UA
1
7
CPUA16
ROMWRZ
MDR21
MDR26
R330
100 1/16W
C370
15pF
3.3VM
ROMA6
MDR24
MAR9
RN30922 1/16W
1
2
3
4
8
7
6
5
MD8
MAR0
MDR5
MDR2
R322
4.7K 1/16W
ISP
9
MA9
RN31122 1/16W
1
2
3
4
8
7
6
5
RX
9
MDR6
C375
0.1uF
14
MD16
MA5
SW300
SW
CP
UP
2
7
ROMA7
MDR15
MA14
MDR27
MD23
C383
0.1uF
CPUP27
MD19
X301
32.768KHZ
3.3VM
ROMA7
MD12
RN31322 1/16W
1
2
3
4
8
7
6
5
MA7
MD25
RN31522 1/16W
1
2
3
4
8
7
6
5
SDRAM Port
U300D
SPV301A
L26
L25
L24
K26
K25
K24
J26
J25
H26
H25
J24
J23
G26
H24
H23
N24
M26
M25
M24
AF25
AC22
AD23
AF26
AE24
AC23
AD24
AE25
AB24
AC25
AD26
AA24
AB25
AC26
AB26
Y24
W23
AA25
AA26
Y25
W24
Y26
W25
V24
W26
V25
U24
V26
U25
U26
T24
T25
AC24
AB23
AD25
AE26
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
MA10
MA11
MA12
MA13
MA14
DQM0L
DQM0H
DQM1L
DQM1H
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MD16
MD17
MD18
MD19
MD20
MD21
MD22
MD23
MD24
MD25
MD26
MD27
MD28
MD29
MD30
MD31
WEnn
SDCLK
RASnn
CASnn
MDR1
R344
100K 1/16W
WENN
MD3
27
CP
UP
0
6
ROMA5
MDQMH1
MD29
CPUP02
MAR8
MCSNN
MDR23
CPUP25
DQML0
R339
10K 1/16W
R337
10K 1/16W
SCL
3,4,6,9,11,14,15
MD5
SDA
CPUP17
MD25
MDR20
MA10
CS
3.3VM
MD27
MCASNN
U303
GTL540L16
18
17
28
41
38
37
39
54
23
24
25
26
29
30
31
32
33
34
22
35
2
4
5
7
21
20
16
19
1
14
27
3
9
43
49
6
12
46
52
8
10
11
13
42
44
45
47
48
50
51
53
15
36
RAS
CAS
GND
GND
CLK
CKE
DQMU
GND
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
DQ0
DQ1
DQ2
DQ3
BS1/A12
BS0/BA
WE
CS
VCC
VCC
VCC
VCCQ
VCCQ
VCCQ
VCCQ VSSQ
VSSQ
VSSQ
VSSQ
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQML
NC
R360
10K 1/16W
TP312
3
COMP_SEL
1
ROMA0
CPUP26
MD21
MAR14
MAR12
MA12
LVDS_EN
13
MA13
MAR10
MDR25
DQML0
CPUP03
R323
100 1/16W
SCL
ROMA2
MD14
SDCLKR
R348 22 1/16W
MAR4
MD26
MAR14
MD7
MD11
R328
100 1/16W
ROMA5
MAR3
MD6
512KB
MAR13
MAR1
MAR7
MDR19
MDR16
R335
0 1/16W
X300
12MHz
CASNN
MD11
MAR7
MDR13
MDR12
R300
0 1/16W
ROMA0
SDA
MAR12
MA6
KEY_AD
1
SDCLK
MDR21
MDR7
CPUP32
+
C366
100uF/16V
MAR11
MD31
MDR31
CPUP20
ROMA1
MCASNN
MAR13
MD9
MDR1
DQMH1
R358
100K 1/16W
WP
MDQML0
MAR4
MDR16
MD17
MAR4
R324
33 1/16W
3.3VM
MDR0
MA11
C376
0.1uF
SCL
3,4,6,9,11,14,15
MD24
MAR6
MD3
MA13
MA11
C386
0.1uF
CPUP01
MDR29
MAR5
MAR3
3.3VM
DQMH0
MDR22
R347 22 1/16W
MDQMH0
MDR17
MD21
R356 22 1/16W
CPUP06
MDR8
MAR2
MD14
C367
15pF
CPUP07
MAR9
MDR2
5VP
SDCLKR
MD1
RASNN
MA0
MDR19
MA3
MA7
R346 22 1/16W
C369
15pF
MDQML1
CPUP23
MA0
C300
0.1uF
CKE
MAR2
MD18
TX
9
MDR30
MA10
MA5
R349
4.7K 1/16W
CPUP05
MDR0
MD0
R351 22 1/16W
CPUP10
MDR9
VD_RST
C377
0.1uF
C378
0.1uF
MAR9
MD22
CPUP15
TP300
R359
100K 1/16W
MDR10
WP
R352 22 1/16W
SDA
3,4,6,9,11,14,15
CPUP21
CPUA18
MA2
MD0
CKER
MAR7
MDQML1
MDR15
CPUP15
R343
100K 1/16W
C382
0.1uF
SCL
MD28
MAR6
MD17
3.3VM
MA1
ROMA4
RN30722 1/16W
1
2
3
4
8
7
6
5
External ROM: CPUP16 pull HIGH
VD_RST
4
MDR7
MD2
MD10
C380
0.1uF
C368
15pF
ROMA4
MDR28
C391
330pF
Code Flash
3.3VM
CP
UA
1
8
DQMH1
ROMA6
CPUP12
MAR8
MD4
MD16
XTALI
MA6
MDR11
MDR28
RN31222 1/16W
1
2
3
4
8
7
6
5
MDR13
MD27
MDR5
MD6
U304
M24C16-MN6T
4
8
5
6
1
2
3
7
GN
D
VCC
SDA
SCL
A0
A1
A2
WP
Q301
PMBS3904
3
2
1
MAR5
MD5
MAR8
RN30822 1/16W
1
2
3
4
8
7
6
5
MAR1
MDR9
R325
NC
Internal ROM: CPUP16 pull LOW
MCASNN
MDR12
MD15
R342
100K 1/16W
ROMA1
MDR22
R362
NC
CPUP26
SDCLKR
RASNN
CPUP32
MAR1
MAR0
MDR4
+
C364
10uF/16V
R327
100 1/16W
CP
UA
1
6
XTALO
MD20
PANPWR_ON
MA1
R321
100 1/16W
Summary of Contents for A20E221 Series
Page 13: ...AOC A20E221 13 The color temp is for you to adjust the color temperature to one you prefer ...
Page 15: ...AOC A20E221 15 4 2 Main Board Power Circuit 4 3 Remote Control Block ...
Page 16: ...AOC A20E221 16 4 4 Key Board Control Block ...
Page 17: ...AOC A20E221 17 4 5 PC Control Block ...
Page 18: ...AOC A20E221 18 ...
Page 19: ...AOC A20E221 19 4 6 Audio Control Block ...
Page 23: ...AOC A20E221 23 ...
Page 24: ...AOC A20E221 24 ...
Page 25: ...AOC A20E221 25 ...
Page 26: ...AOC A20E221 26 7 MECHANICAL OF CABINET FRONT DIS ASSEMBLY ...
Page 54: ...AOC A20E221 54 9 PCB LAYOUT 9 1 Main Board PCB Layout ...