ViewSonic VS12335-2M, Service Manual

Page: 86 / 102

8 . 16 . DECODER
CLOSE TO AML7228
debug
Power_on
Configuration
USB
REXT1
REXT2
TDO
ID2
M2_D10
M2_D6
M1_BA1
M1_A11 M1_A7
TDO
M2_SCS0_n
DP
2
I2
C_
CL
K
M1_BA0 M1_C
LK
M1_A9
M2_BA0
M2_A0
M2_D12
M1_A1 M1_A0 M1_D
4
M2_A4
M2_D5
M2_D3
R
EXT2
M1_D
0
RESET_N
M2_A5
M1_SC
S
0_N
M1_D
3
M2_A10
M2_A7
M2_D4
M2_CAS_n
M2_D1
IR
M1_R
AS_N
M1_D
11
TMS
M2_RAS_n
M2_D15
M2_D2
M1_D
Q
M
1
M1_A6 M1_A2
I2C_DATA
TCK
M2_CLKO
M2_A2
M2_A1
M1_A10
TDI
M2_DQM0
M2_WE_n
M2_A11
M2_D14
M2_D7
F_nCS
M1_A4 M1_D
2
TCK
M2_A9
M2_D8
M1_D
9
M1_D
5
RESET_N
I2C_CLK
TEST_N
M1_D
Q
M
0
M2_A8
M1_D
7
M1_D
6
M1_D
1
TDI
TEST_N
M2_BA1
M2_DQM1
M2_D13
M2_D11
M2_D0
R
EXT1
I2
C_
DA
TA
M1_A5 M1_D
15
M1_D
13
M2_A6
M2_A3
DM
2
M1_C
AS_N
M1_D
12
TMS
F_nOE
M1_D
14
M1_D
8
M2_D9
VBU
S2
M1_W
E_N
M1_A8 M1_A3 M1_D
10
AVDD_DAC
K2
DP
F_
K
1
DP
F_
K
0
DP
F_
K
2
DPF_Card_dect-
DPF_Enable-
AMCLK
ASCLK
DPF_RST-
D2+
D2- DM2
DP2
DPF_IR
AMCLK
ALRCLK
ASCLK
ADATA1/AR
ADATA0/AL
ADATA0/AL
ADATA1/AR
M1_D[15..0] M1_A[11..0]
M1_A[11..0] 4
M1_D[15..0] 4
M1_D
Q
M
1 4
M1_D
Q
M
0 4
M1_BA1
4
M1_BA0
4
M1_C
LK
4
M1_SC
S
0_N
4
M1_R
AS_N
4
M1_W
E_N
4
M1_C
AS_N
4
F_nCS 4
F_nOE 4
M2_D[0..15] 4
M2_WE_n 4
RESET_n 4
M2_A[0..11] 4
M2_BA1 4
M2_BA0 4
M2_CAS_n 4
M2_RAS_n 4
M2_SCS0_n 4
M2_CLKO 4
M2_DQM1 4
M2_DQM0 4
R/Cr/Pr 5
G/Y/Y 5
B/Cb/Pb 5
DPF_Card_dect- 5
DP
F_
K
1
5
DP
F_
K
2
5
DP
F_
K
0
5
DPF_Enable- 5
DPF_RST- 5
DPF_IR 5
ALRCLK
AMCLK
ASCLK
ADATA0/AL
DGND DGND
DGND
DGND
DGND
DGND DGND
AVDD1
Core3.3V Core1.2V
Core1.2V DVDD
AVDD2
DAC_3.3V AVDD_DAC
Core1.2V
Core3.3V
Core3.3V
VCC1.2V
AVDD3
AVDD1
USB1.2V VCC1.2V
USB3.3V DAC_3.3V
DGND
Core3.3V
Core3.3V
Core3.3V
USBGND
USB3.3V
USB1.2V
USBGND
USBGND
AVDD_DAC
DAC_3.3V
Core3.3V
AVDD_DAC
Core3.3V
USBGND
DGND
Core3.3V
USBGND
USBGND
AVDD2
AVDD3
DVDD
DGND
Core3.3V
USB5V
DGND
Core3.3V
USBGND
USB5V
USB5V
USBGND
VCC
DGND
C426
27p
C455
100nF
+
CF11
100u/16V
R4
2
6
100
R415
10K
R428
4.7K
+
C474
100u/16V
C415
NC/100nF
C459
100nF
+
C475
100u/16V
CF12
100nF
C476
100nF
C416
10nF
C456
100nF
L412
600R/1.5A 0805
C473
100nF
L419
NC/CHOKE_CM14
1
4
2
3
C447
100nF
L408
600R/1.5A 0805
R
438
4.
7K
C437
100nF
C453
100nF C460
100nF
C448
100nF
C418 10nF
C439
100nF
R488 0R 0603
C457
100nF
+
C432
100u/16V
+
C441
47u/16V
D4
0
2
N
C
(EGA 0.
2P)
1
2
C446
100nF
C454
100nF CF28
4.7uF/0805
Memory #1
Memory #2
CLOCKS & PLL
TEST GPIO USB TWO OTG PORTS
P O W E R
Audio
Video DAC
ATAPI
SD/MS
AML7228
TS-DEMUX NC
I404
NC1
82 103 149 173 217 239 148 147 146 145 142 141 140 139 129 130 131 134 135 136 137 138 101 100 99 98 102 107 108 109 110 111 114 115
66
68
70
72
25
256
17 16 24 38 39
65
69
73
67
71
75
56 84
74
48 55
76
83 93 106 118 133 143 159 174 187 223 49
79
81 104 150 172 218 238 244 233
228 227 226 225 222 219 220 221 128 64 255 249 251 252 250
216
215
62
92 105 117 132 144 160 175 188 224 234 245
63
127 126 125 124 123 122 121 120 119 116
235 236 237
248
247
246
232 231 230 229
1
3
8
11
14
2
7
10
13
4
5
6
9
12
15
151
152
153
154
155
156
157
158
161
162
163
164
165
166
167
168
97
96
95
94
91
90
89
88
87
86
85
80
169 170 171 176 177 178 185 186 189 190 191 192 179 180 181 182 183 184 193 194 198 199 201 196 195 200 202 197 203 204 205 209 210 212 207 206 211 213 214 208 253 254
112
113
18
19
20
21
22
23
26
27
35
34
33
32
31
30
29
28
60
61
77
78
59
58
57
54
53
52
51
50
36
37
40
41
42
43
44
45
46
47
243
242
241
240
NC1
VSS12 VSS12 VSS12 VSS12 VSS12 VSS12
M1_D
_0
M1_D
_1
M1_D
_2
M1_D
_3
M1_D
_4
M1_D
_5
M1_D
_6
M1_D
_7
M1_D
_8
M1_D
_9
M1_D
_10
M1_D
_11
M1_D
_12
M1_D
_13
M1_D
_14
M1_D
_15
M1_A_0 M1_A_1 M1_A_2 M1_A_3 M1_A_4 M1_A_5 M1_A_6 M1_A_7 M1_A_8 M1_A_9
M1_A_10 M1_A_11
DVSS12_PLL3
AVSS33_PLL3
DVSS12_PLL2
AVSS33_PLL2
V
DD3
3
NC
V
DD1
2
VSS12 VSS33 VSS33 V
DD3
3
DVDD12_PLL3
DVDD12_PLL2
DVDD12_PLL1
AVDD33_PLL3
AVDD33_PLL2
AVDD33_PLL1
VSS33 VSS33
DVSS12_PLL1
VSS12 V
DD3
3
AVSS33_PLL1
V
DD3
3
V
DD3
3
V
DD3
3
V
DD3
3
V
DD3
3
V
DD3
3
V
DD3
3
V
DD3
3
V
DD3
3
V
DD3
3
V
DD1
2
MIO5/HD_CLK/T_CPH1
V
DD1
2
V
DD1
2
V
DD1
2
V
DD1
2
V
DD1
2
V
DD1
2
V
DD3
3
V
DD3
3
FE
C_
D4
/UA
R
T_
RX
FEC_
D5
/UART_
TX
FE
C_
D6
/M
IC_
in
FE
C_
D7
/S
P
D
IF_
O
FEC_
FAIL
/VFD_
D
O
FE
C_
CL
K
/V
F
D_
S
T
B
FEC
_
SOP/
VFD
_
D
IN
FE
C_
V
A
L
ID/V
FD_
C
L
K
NC NC NC TM
S
TCK TDO TDI
USB_XOUT
USB_XIN
SCLK_XIN
VSS33 VSS33 VSS33 VSS33 VSS33 VSS33 VSS33 VSS33 VSS33 VSS33 VSS33
SCLK_XOUT
M1_W
E_n
M1_C
AS_n
M1_R
AS_n
M1_SC
S
0_n
M1_SC
S
1_n
M1_D
Q
M
0
M1_D
Q
M
1
M1_C
LKO
M1_BA0 M1_BA1
M
IO4
/IR
M
IO
3
/UA
R
T_
RX
/I2
C_
D/M
IC_
in
M
IO2
/UA
R
T_
TX
/I2
C_
C
AMCLK
AOCLK
ALRCLK
FE
C_
D0
/I2
C_
M
_
C
FE
C_
D1
/I2
C_
M
_
D
FE
C_
D2
/I2
C_
S
_
CL
K
FE
C_
D3
/I2
C_
S
_
D
VDD_DAC
AVDD_DAC
AVDD_R
AVDD_G
AVDD_B
VSS_DAC
AVSS_R
AVSS_G
AVSS_B
REXT_DAC
VREF_DAC
COMP
DAC_R
DAC_G
DAC_B
AT_D_0
AT_D_1
AT_D_2
AT_D_3
AT_D_4
AT_D_5
AT_D_6
AT_D_7
AT_D_8
AT_D_9
AT_D_10
AT_D_11
AT_D_12
AT_D_13
AT_D_14
AT_D_15
AT_DA2
AT_DA1
AT_DA0
AT_IRQ14
AT_CS0
AT_CS1
AT_DMARQ
AT_DMACK_n
AT_DIORDY
AT_DIOW
AT_DIOR
AT_CSEL/HD_DE/T_CPH2
EGPI
O0/
F
EC
_C
LK
EGPI
O1/
F
EC
_SOP
EGPI
O2/
F
EC
_VAL
EGPI
O3/
F
EC
_FAI
L
EGPI
O4/
F
EC
_D
0
EGPI
O5/
F
EC
_D
1
EGPI
O12/
FEC
_
D
2
EGPI
O13/
FEC
_
D
3
EGPI
O14/
FEC
_
D
4
EGPI
O15/
FEC
_
D
5
EGPI
O16/
FEC
_
D
6
EGPI
O17/
FEC
_
D
7
SD
/M
S_C
L
K/
EGPI
O6
SD
/M
S_C
M
D
/EGPI
O7
S
D
/M
S
_
D0
/E
GP
IO8
S
D
/M
S
_
D1
/E
GP
IO9
S
D
/M
S
_
D2
/E
GP
IO1
0
S
D
/M
S
_
D3
/E
GP
IO1
1
ID
_U
SBB
VBU
S_U
SBB
D
P
_U
SBB
D
M_U
SBB
R
EXT_U
SBB
VSS12_U
SB2
VD
D
12_U
SB2
VD
D
33T
_U
SB2
VD
D
33C
_U
SB2
VSS33T_U
SB2
VSS33C
_U
SB2
ID
_U
SBA
VBU
S_U
SBA
D
P
_U
SBA
D
M_U
SBA
R
EXT_U
SBA
VSS12_U
SB1
VD
D
12_U
SB1
VD
D
33T
_U
SB1
VD
D
33C
_U
SB1
VSS33C
_U
SB1
VSS33T_U
SB1
TEST_N R
ESET_N
FLASH_CS_n
FLASH_OE_n
M2_D_0/HD_0
M2_D_1/HD_1
M2_D_2/HD_2
M2_D_3/HD_3
M2_D_4/HD_4
M2_D_5/HD_5
M2_D_6/HD_6
M2_D_7HD_7
M2_D_8/HD_15
M2_D_9/HD_14
M2_D_10/HD_13
M2_D_11/HD_12
M2_D_12/HD_11
M2_D_13/HD_10
M2_D_14/HD_9
M2_D_15/HD_8
M2_A_0/PWM2
M2_A_1/PWM3
M2_A_2/HD_HS/PWM0
M2_A_3/HD_VS/PWM1
M2_A_4/T_CPH3
M2_A_5/T_CPV1
M2_A_6/T_CPV2
M2_A_7/T_STV1
M2_A_8/T_STV2
M2_A_9/T_OEV1
M2_A_10/T_OEV2
M2_A_11/T_OEV3
M2_WE_n/HD_16
M2_CAS_n/HD_17
M2_RAS_n/HD_18
M2_SCS0_n/HD_19
M2_SCS1_n/HD_20
M2_DQM0/HD_21
M2_DQM1/HD_22
M2_CLKO/HD_23
M2_BA0/T_STH2
M2_BA1/T_STH1
ADATA0/AL
ADATA1/AR
MIO0/ADATA2/U_TX/I2C_M_C
MIO1/ADATA3/U_RX/I2C_M_D
NC1
R4
2
5
100
C438
100nF
C467
100nF
D405 1N4148
1 2
I405
NC/MAX809TEUR
3
1
2
VIN
GN
D
RESET_n
C451
100nF
C435
100nF
R
437
3.
48K
L406
600R/1.5A 0805
C429
100nF
R430
4.7K
+
C442
100u/16V
C468
100nF
L407
600R/1.5A 0805
R417 100R
R412 4.7K
C444
100nF
C423
100nF
C472
100nF
L420
600R/1.5A 0805
C
434
100nF
L413
80R/6A 0805
C428
100nF
R411 NC
C419
100nF
L410
600R/1.5A 0805
L405 0R
R435
10K
L414
600R/1.5A 0805
C436
100nF
X401
27M
+
C417
10u/16V
C430
100nF + C427
47u/16V
P401
6pin/2.5mm_JTAG
1
2
3
4
5
6
+3.3V
GND
TMS
TCK
TDO
TDI
C470
100nF
1:GND
2:D+
3:D-
4:VCC 1
3
2
4
P404
USB TYPEA
USB1
2
3
4
1
5
6
R420 62R
R4
2
4
100
C420
100nF
R4
2
3
100
C463
100nF
L409
600R/1.5A 0805
C433
8.2P
R
436
3.
48K
I406
24C02
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCLK
WP
VCC
C465
100nF
R408
100K
C440
100nF
R429
4.7K
C
450
100nF
+
C422
100u/16V
L411
600R/1.5A 0805
C469
100nF
R487 0R 0603
R419 200R
C466
100nF
+
C449
47u/16V
R414 NC
C431
100nF
C458
100nF C477
100nF
R422
0R
R418 100R
+
C443
100u/16V
+ CF27
47u/16V
C425
27p
R
439
4.
7K
R410 4.7K
C462
100nF
C424
100nF
C461
100nF C452
100nF
R416
10K
C445
100nF
R413 10K
L404 0R
D4
0
1
N
C
(EGA 0.
2P)
1
2
R427
4.7K
C421
100nF
C464
100nF
R
431
3.
3k
R409 4.7K
L421
600R/1.5A 0805
R421
100K
C471
100nF
ViewSonic Corporation
Confidential - Do Not Copy VTMS2431
83