ViewSonic VS12335-1M, Service Manual

Page: 72 / 95

8 . 5 . MSD2248AL_256_IC
HDMI Block
RGB Block
CVBS Block
Audio Block
DDR-SDRAM Block
I2C / UART
USB Block
SAR
GPIO
Mode Selection
Using power plane
EEPROM
I2C address
at A0.
I2C address
at A4
CL=20pF ; C0max=5pF
System Crystal
Close to IC
with width trace
*100MHz, No any VIA hole!
Boot Loader SPI Flash
PWM
System Reset
Close to IC
as close
as possible
with width trace
1
13
0V
0V 3V 2V 1V
1V 3V 2V
R295 , R309 ------ JEAN STD
R291 , R306 ------ CUSTOMER
LED Driver
4M
PA
N
EL
IN
TE
RF
A
CE
Transport Stream
Debug port
Close to Scaler
modify circuit 080710
in order to reduce power comsumption add GPIO to control AMP sleep mode 080901
modify Res value from 5K6 to 6K8 080910
relayout bypass cap link GND position from via to board side GND 081014
HDMI-CLKN
HDMI-CLKP
HDMI-RX0N
HDMI-RX2P
HDMI-RX1N
HDMI-RX2N
HDMI-RX1P
HPD_CTRL
HDMI-SDA
HDMI-SCL
R
RGB1-SOG
R
R
VGA_VSYNC1
VGA_HSYNC1
RGB0_Y-
RGB0_PB-
RGB0_PR-
YIN_0+
CIN_0+
CVBS1_IN
VCOM1
TV_IN+
TV_IN-
SIF_IN-
AUR0
AUL2
AUR2
AUL0
I2C-SDA
I2C-SCL
UART-TX
UART-RX
USB_DP
USB_DM
AU_DACO_1L
AU_DACO_1R
TUNER-SAR2
BRI_ADJ-PWM2
PWM0
24C04_I2C-SCL
24C04_I2C-SDA
24C32_I2C-SCL I2C-SCL
24C32_I2C-SDA
SPI_CSN0
SP_SDO
SPI_SCK
SPI_SDI
MUTE_S/GPIO124
PANEL-ON/OFF-GPIO11
RGB0-SOG
BRI_ADJ-PWM2
LED_B-GPIO100
SYS_RST System-RST
VBLCTRL-GPIO12
SYS_RST
OSDENTER
LEDR
LEDB
SAR1
OSDINC
LEDR
OSDDOWNJEAN OSDDOWN
LEDB
OSDDOWN
OSDINCJEAN
OSDINC
OSDUP
OSDDEC
OSDDOWN
OSDENTER GPIODOWN
GPIOMENU
POWER-ON/OFF-GPIO44
SHUT_DOWN_AU
AUVRM
Y_CC
GPIODEC
GPIOINC
GPIOENTER
GPIOUP
SPI_SCK
SPI_SDI
SP_SDO
SPI_CSN0
XTALO
I2C-SDA
XTALI
FLASH0_WPN-SAR3
SAR0
EEPROM_WPN-GPIO13
EEPROM_WPN-GPIO13
AUL1
AUR1
IR-SYNC
OSDINCJEAN
OSDDEC
OSD-POWER-KEY
OSDUP
OSDDOWNJEAN
AUVRP
AUVAG
TS_CLK
TS_SYNC
TS_VALID
TS_D[7:0]
GP
IOINC
GP
IOD
E
C
GP
IOU
P
GP
IOD
OWN
GP
IOM
E
N
U
UART-RX
UART-TX
T
S_
SYN
C
SPI-SDI
F
L
ASH
0
_
W
PN
-SAR
3
SAR
1
R
VCLP
HDMI-RX2P
I2C-
S
DA
V
DDC
TS
_
D
2
UA
RT
-RX
VGA_HSYNC1
HDMI-CLKN
SPI-SDO
TV_IN+
AVDD_ADC
VGA_VSYNC1
HDMI-REXT
VDDC
Y_CC
REFP
TS
_
D
3
AVDD_ADC
SAR
0
AU
VR
P
IR
-SYN
C
P
OWE
R
-ON
/OFF-GP
IO4
4
BR
I_
AD
J-PWM2
AUR0
CVBS1_IN
R
V
DDC
T
UNE
R-
S
A
R2
R
HPD_CTRL
T
S
_CLK
V
DDP
AVD
D
_
AU
VCOM1
REFM
AUCOM
CIN_0+
TS
_
D
6
TV_IN-
RGB0_PR-
RGB0-SOG
I2C-
S
CL
RGB0_Y-
HDMI-SDA
O
S
D
-P
O
WER
-KEY
V
DDP
T
S_
VAL
ID
HDMI-RX1P
SIF_IN-
RGB0_PB-
EEPR
O
M
_
W
PN
-G
PI
O
1
3
TS
_
D
5
UA
RT
-T
X
A
U
_DA
C
O
_0L
TS
_
D
7
TS
_
D
4
HDMI-RX0P
AUR2
AUL2
AUR1
AVDD_SIF
HDMI-RX2N
A
U
_DA
C
O
_0R
YIN_0+
TS
_
D
0
HDMI-RX1N
AU
VAG
AUL1
AVDD_ADC
HDMI-SCL
HDMI-CLKP
TS
_
D
1
A
V
DD_DDR
HDMI-RX0N
PWM0
AUL0
AU
VR
M
DQ
S
0
Syst
e
m
-R
ST
RGB1-SOG
USB_OCD_N-GPIO123
RXEC+
RXO3+
RXO2+
VDDC
LED_R-GPIO99
LED_B-GPIO100
AVDD_DDR
MDDR_VREF
DQS2
DQS3
MDATA30
MDATA31
MDATA26
MDATA27
MDATA24
DQM3
MDATA25
MDATA28
MDATA29
AVDD_DDR
MDATA18
MDATA20
MDATA19
MDATA23
MDATA22
MDATA21
DQM2
MDATA16
MDATA17
AVDD_DDR
V
DDC
M
DDR_V
RE
F
AVD
D
_
MEMPL
L
A
V
DD_DDR
MC
L
K
-
MC
L
K
+
CK
E
M
A
DR8
M
A
DR7
M
A
DR5
M
A
DR6
M
A
DR3
M
A
DR4
M
A
DR1
M
A
DR2
M
A
DR0
M
A
DR12
M
A
DR11
M
A
DR10
M
A
DR9
CA
S
WEZ RA
S
BA0 BA1 A
V
DD_DDR
CAS
WEZ
RAS
BA0
BA1
MCLK-
CKE
MCLK+
MDATA5
MDATA11
MDATA6
MDATA12
MDATA9
MDATA13
MDATA7
MDATA14
MDATA10
MDATA0
MDATA15
MDATA8
MDATA2
MDATA3
MDATA4
MDATA1
MDATA24
MDATA30
MDATA19
MDATA25
MDATA20
MDATA28
MDATA23
MDATA18
MDATA16
MDATA29
MDATA22
MDATA17
MDATA21
MDATA26
MDATA27
MDATA31
MADR3
MADR7
MADR8
MADR4
MADR5
MADR6
MADR1
MADR11
MADR2
MADR12
MADR0
MADR10
MADR9
DQ
S
1
DQ
M
1
A
V
DD_DDR
V
DDC
XT
AL
O
XT
AL
I
A
V
DD_M
P
LL
U
SB_
D
P
U
SB_
D
M
A
V
DD_O
T
G
OTG_
R
E
X
T
AVD
D
L
_
D
VI
V
DDC
MD
AT
A1
5
MD
AT
A1
4
MD
AT
A1
3
MD
AT
A1
2
MD
AT
A1
1
MD
AT
A1
0
MD
AT
A8
MD
AT
A9
MD
AT
A7
MD
AT
A6
MD
AT
A5
MD
AT
A4
MD
AT
A3
MD
AT
A2
MD
AT
A1
MD
AT
A0
AVDD_LPLL
RXOC-
RXO1+
RXE2-
RXE3-
RXE0+
RXEC-
RXO0-
RXO3-
RXE3+
VDDP
SPI-SCK
RXE2+
SPI-CSN0
RXOC+
RXO1-
RXO2-
PANEL-ON/OFF-GPIO11
RXO0+
VDDP
RXE0-
VBLCTRL-GPIO12
RXE1-
RXE1+
LED_R-GPIO99
S
HUT
_DO
W
N_A
U
GP
IOE
N
TE
R
PWM1
PWM1
HDMI-RX0P
D
T
VR
ESET
MDDR_VREF
MUTE_S/GPIO124
USB_OCD_N-GPIO123
VBLCTRL-GPIO12
HDMI-CEC
HDMI-CEC
OSDDOWN
OSDENTER
OSDUP
OSDMENU
OSDINC
OSDMENU
OSDDEC
OSDMENU
OSDINC
POWER-SAVING-GPIO98
A
U
_DA
C
O
_1L
A
U
_DA
C
O
_1R
AU_DACO_0L
AU_DACO_0R
POWER-SAVING-GPIO98
VCC3.3V-ST
VCC3.3V-ST
AVDD_DDR
AVDD_LPLL
AVDD_MEMPLL
AVDD_OTG AVDD_MPLL
AVDD_SIF AVDD_AU
VCC3.3V-ST
AVDD_MEMPLL
VCC3.3V-ST
AVDD_LPLL
VCC3.3V-ST VDDP
AVDD_ADC AVDD_DVI
VCC1.2V-ST
VCC2.5V-ST
VCC3.3V-ST VCC3.3V-ST
VCC3.3V-ST
VCC3.3V-ST
VCC3.3V-ST
AVDD_MPLL
AVDD_SIF
AVDD_AU
VCC3.3V-ST
AVDD_OTG
AVDD_ADC
AVDD_DVI
AVDD_ADC
VCC3.3V-ST
VCC3.3V-ST
VCC5V-ST
VCC5V-ST
VCC5V-ST
VCC5V-ST
VCC5V-ST
VCC3.3V-ST
VCC3.3V-ST
VCC3.3V-ST
VCC3.3V-ST
VCC3.3V-ST
VCC3.3V-ST
VCC5V-ST
VCC3.3V-ST
VCC3.3V-ST
VDDC
AVDD_DDR
VCC3.3V-ST
VCC3.3V-ST
VCC3.3V-ST
AVDDL_DVI
C273
100nF
R701 NC
R301
NC
C3291nF
C293
100nF
R280
220R 0603
C268
100nF
C299
100nF
R332
NC
R299
1K
R311
10K R339
100R
C3271nF
R713
10K
R266
NC/4.7K
L208
0R 0805
P203
2.0mm/Male_wafer
SIP4
1 2 3 4
R360 4.7K
C285
NC
R287
4.7K
C266
100nF
C301
100nF
R260 4.7K
C265
100nF
R284
2.4K
C333
1nF
C274
100nF
C280
100nF
R279
1K
R702 NC
L207
600R/1.5A 0805
C312 NC/10u/16V
R286
4.7K
R317
10K
R277 3K9
R271
NC/1K
C286
100nF
C267
100nF
E
B
C
SOT
23
Q201
MMBT3906
1
3
2
R264
1K 1%
C294
100nF
C300
100nF
R338
100R
C283
100nF
R258
1M
R309 NC/0 0603
R293 100R
R714
10K
R333
NC
C297
100nF
C309
100nF
R313 100R
R276 470R 0603
R336
4.7K
L205
600R/1.5A 0805
+
C262
10u/16V
C264
100nF
C289
100nF
R725 NC/4K7
R703 NC
R334
NC
R151
NC
C292
100nF
R331
NC
C316
100nF
R270
10K
Q203
MMBT3906
1
3
2
R281
470R 0603
R705 NC
+ C291
10u/16V
R715
10K
C260
20pF
R358
NC/10K
C254
100nF
R292
10K
R261 4.7K
C3281nF
R721 100R
R263
1K 1%
R726 NC/4K7
R307
100R 0603
D204
BAV99
3
2
1
R288 2K2
R282
1K
R306 0 0603
R337
NC
I206
MSD2248AL
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
32
34
35
40
41
42
43
44
45
46
48
50
51
52
53
55
56
57
58
59
60
61
62
64
65 70 66 68 69 73 78
134
118 119 120 121 122 123 124 125 128
129
130
131
132
133
191
182
183
184
192
186
188
189
190
217 218 219 220 242 243 244 255 256
5
6
9
7
8
4
31
245
89
246 254
71 72 79 117
137
138
139
140
141
142
143
144
145
146
147
150
151
152
153
154
155
156
157
158
159
90 91 92 93 94 95 96 97 101 102
135
136
185
193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 222 216 248 249 251 252 250
1
2
3
36
37
38
39
230
74 75 76
54
80 81 82 83 84 85 86 87 88
257
33
47
49
63
67 77 98 99 100 103 104 105 106 107 108 109 110 111 112 113 114 115 116 126 127
148
149
160
161
162
163
164
165
166
167
168
169
170
171
173
174
175
176
178
179
181
172
177
180
187
209 210 211 212 213 214 215 221 223 224 226 227 225 228 229 231 232 233 235 236 237 238 239 240 234 241 247 253
RX2N
RX2P
GPIO125
REXT
DDCDA_DA
DDCDA_CK
HSYNC1
VSYNC1
VCLP
REFP
REFM
BIN1P
SOGIN1
GIN1P
RIN1P
BIN0M
BIN0P
GIN0M
GIN0P
SOGIN0
RIN0M
AVDD_ADC
HSYNC0
VSYNC0
CVBS3P
CVBS2P
CVBS1P
VCOM1
CVBS0P
VCOM0
AVDD_ADC
CVBSOUT
AVDD_SIF
SIF_IN1P
SIF_IN1M
VDDC
LINE_IN_0L
LINE_IN_0R
LINE_IN_1L
LINE_IN_1R
LINE_IN_2L
LINE_IN_2R
LINE_IN_3L
LINE_IN_3R
NC
NC AVD
D
_
AU
GN
D
AU
VR
P
AU
VAG
LINE
_O
UT
_1L
V
DDP
GPIO125/CEC
S
A
R
0/F
D
S
P
_IM
S
/M
CU_T
M
S
SAR
1
/F
D
SP_
IC
L
K/
MC
U
_
T
C
K
S
A
R
2/F
D
S
P
_IDI/M
CU_T
D
I
S
A
R
3/F
D
S
P
_IDO
/M
CU_T
D
O
PWM0 PWM1 PWM2 PWM3 HW
RE
S
E
T
SPI_CK
SPI_DI
SPI_DO
SPI_CZ0
VDDP
VDD_DDR
DDR_DQ[22]
DDR_DQ[21]
DDR_DQ[20]
DDR_DQS[2]
DDR_DQ[18]
DDR_DQM[2]
DDR_DQ[17]
DDR_DQ[16]
DDR_B
A
[0]
DDR_W
E
_N
DDR_RA
S
_
N
DDR_CA
S
_
N
DDR_DQ
M
[0]
DDR_DQ
[1]
DDR_DQ
[0]
XI
N
A
V
DD_M
P
LL
RX0P
AVDD_ADC
GND
RX1N
RX1P
RX0N
RIN0P
V
DD_DDR
V
DDC
DDR_DQ
S
[0]
XO
U
T
LINE
_O
UT
_2L
LINE
_O
UT
_2R
GP
IO2
0
UA
RT
_RX
(DDCA
_CLK
)
LA3P/RXE3+
LA3N/RXE3-
LACK/RXEC+
LACK/RXEC-
LA2P/RXE2+
LA2N/RXE2-
LA1P/RXE1+
LA1N/RXE1-
LA0P/RXE0+
LA0N/RXE0-
VDDP
LB3P/RXO3+
LB3N/RXO3-
LBCKP/RXOC+
LBCKN/RXOC-
LB2P/RXO2+
LB2N/RXO2-
LB1P/RXO1+
LB1N/RXO1-
LB0P/RXO0+
LB0N/RXO0-
TS
D
A
TA
[0
]
TS
D
A
TA
[1
]
TS
D
A
TA
[2
]
TS
D
A
TA
[3
]
TS
D
A
TA
[4
]
TS
D
A
TA
[5
]
TS
D
A
TA
[6
]
TS
D
A
TA
[7
]
GN
D
V
DDC
GPIO124
GPIO123
DDR_DQ[19]
GN
D
V
DDC
G
P
IO
13/UA
RT
_RX
1
/CE
C
G
P
IO
14/UA
RT
_T
X
1
MVR
E
F
DDR_CK
O
_
N
DDR_CK
O
DDR_CK
E
AVD
D
_
MEMPL
L
DDR_A
D[0]
DDR_A
D[1]
DDR_A
D[2]
DDR_A
D[3]
DDR_A
D[4]
DDR_A
D[5]
DDR_A
D[6]
V
DD_DDR
DDR_B
A
[1]
A
V
DD_DV
I
U
SB_
R
EXT
U
SB_
D
M
U
SB_
D
P
A
V
DD_O
T
G
GND
RXCN
RXCP
C1(CVBS7P)
Y1(CVBS5P)
C0(CVBS6P)
Y0(CVBS4P)
V
DDC
LINE
_O
UT
_1R(
D
A
C
O
_
S
)
NC LINE
_O
UT
_0L(
DA
CO
_L)
GND
GP
IO2
1
GP
IO2
2
GP
IO2
3
GP
IO2
4
GP
IO2
5
GP
IO2
6
GP
IO2
7
GP
IO2
8
GN
D
GN
D
GND
NC
GND
AUCOM
AU
VR
M
LINE
_O
UT
_0R(
D
A
C
O
_
R)
T
SVAL
ID
T
SSYN
C
TS
C
L
K
GP
IO44/I2S
_
IN_W
S
GP
IO45/I2S
_
IN_B
CK
I2S
_
IN_S
D
SPD
IF
_
IN
SPD
IF
_
O
U
T
I2S
_
OUT_W
S
I2S
_
OUT_M
C
K
I2S
_
OUT_S
C
K
I2S
_
OUT_S
D
0
I2
S
_
OU
T_
M
U
TE
V
DDP
IRIN INT UA
RT
_T
X
(DDCA
_DA
T
)
DDCR_DA DDCR_CK
GPIO12
GPIO11
AVDD_LPLL
GND
GND
VDDC
GPIO100
GPIO99
GPIO98
GPIO97
DDR_DQS[3]
VDD_DDR
DDR_DQ[31]
DDR_DQ[30]
DDR_DQ[29]
DDR_DQ[28]
DDR_DQ[27]
DDR_DQ[26]
DDR_DQ[25]
DDR_DQ[24]
DDR_DQ[23]
GND
DDR_DQM[3]
VDD_DDR
GND
V
DD_DDR
DDR_A
D[7]
DDR_A
D[8]
DDR_A
D[9]
DDR_A
D
[10]
DDR_A
D
[11]
DDR_A
D
[12]
DDR_DQ
S
[1]
DDR_DQ
[15]
DDR_DQ
[14]
DDR_DQ
[13]
DDR_DQ
[12]
GN
D
DDR_DQ
[11]
DDR_DQ
[10]
DDR_DQ
M
[1]
DDR_DQ
[9]
DDR_DQ
[8]
DDR_DQ
[7]
DDR_DQ
[6]
DDR_DQ
[5]
DDR_DQ
[4]
DDR_DQ
[3]
DDR_DQ
[2]
V
DD_DDR
GN
D
V
DDC
GN
D
R303
1K
R296
1K
I209 NC/24C512K
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCL
WP
VCC
R704 NC
R706 NC
C3261nF
C275
100nF
R295 NC/0 0603
C310
100nF
C261
20pF
R262 390R 1% 0603
C282
100nF
C272
100nF
R291 0 0603
R355 0R
R356
10K
R722 100R
+
C277
10u/16V
C3301nF
R727 NC/4K7
R152
NC
R305 2K2
C290
1nF
C270
100nF
R310
4.7K
R269
1K
R716
10K
R312 100R
C200
100nF
R289 1K
R304
2.4K
+ C306
10u/16V
R275 100R 0603
C304
100nF
+
C271
10u/16V
R711
10K
C269
100nF
C278
100nF
X202
12MHz
C3311nF
R723 100R
R728 NC/4K7
C302
100nF
C314
100nF
R272 4.7K
R290 100R
R278 1K
+ C303
10u/16V
C284
100nF
C298
100nF
R300
5K1
+ C349
10u/16V
R G
V
SO
T
23
+
I210
NC/LM810 2.65V
1
3
2
C315
10u/16V
+
C263
10u/16V
R318 4.7K
C288
100nF
C281
100nF
R298
470R 0603
+ C305
1u/50V
R335
0R
C3251nF
R724 100R
C276
100nF
E
B
C
SOT
23
Q202
MMBT3906
1
3
2
R308 5K6
C311
100nF
C151
NC
L206
600R/1.5A 0805
+
C313
47u/16V
C287
100nF
R268
NC/10K
R294 6K8
R340 100R
R283
5K1
R257
909R 1% 0603
I211
24C04
1
2
3
4
5
6
7
8
A0
A1
A2
GND
SDA
SCL
WP
VCC
P204
JST-PH13P-2.0-90
1
2
3
4
5
6
7
8
9
10
11
12
13
SEL
DOWN
UP
MENU
GND
LEDG
LEDR
POWER
LEFT
RIGHT
IRIN
IR5V
IRGND
C3321nF
R712
10K
C296
100nF
C348
100nF
C279
100nF
C308
10u/16V
R297
220R 0603
C152
NC
R302
NC/24K
R285
4.7K
I207
MX25L2305DM2I-12G
1
2
3
4 5
6
7
8
CE#
SO
WP#
VSS SI
SCK
HOLD#
VDD
R267
10K
HDMI-CLKP 10
HDMI-CLKN 10
HDMI-RX0P 10
HDMI-RX0N 10
HDMI-RX1P 10
HDMI-RX1N 10
HDMI-RX2P 10
HDMI-RX2N 10
HPD_CTRL 10
HDMI-SDA 10
HDMI-SCL 10
R 8
RGB1-SOG 8
R 8
R 8
9
RGB0_PB- 9
VGA_HSYNC1 8
VGA_VSYNC1 8
9
RGB0_Y- 9
9
RGB0_PR- 9
YIN_0+ 9
CIN_0+ 9
CVBS1_IN 9
VCOM1 9
TV_IN+ 4
TV_IN- 4
4
SIF_IN- 4
AUL0 9
AUR0 9
AUL2 12
AUR2 12
I2C-SCL 3
I2C-SDA 3
UART-TX 8
UART-RX 8
USB_DP 15
USB_DM 15
AU_DACO_1L 13
AU_DACO_1R 13
TUNER-SAR2 4
VCC3.3V-ST 2
VCC3.3V-ST 2
PANEL-ON/OFF-GPIO11 2
VCC1.2V-ST 2
VCC2.5V-ST 2,7
USB_OCD_N-GPIO123 15
VCC3.3V-ST 2
VCC3.3V-ST 2
RGB0-SOG 9
BRI_ADJ-PWM2 2
VBLCTRL-GPIO12 2
MUTE_S/GPIO124 13
SAR1
SAR0
POWER-ON/OFF-GPIO44 2,13
VCC3.3V-ST 2
VCC3.3V-ST 2,10
VCC3.3V-ST 2,10
Y_CC 9
SHUT_DOWN_AU 13
AUL1 9
AUR1 9
TS_D[7:0] 3
TS_CLK 3
TS_SYNC 3
TS_VALID 3
DTVRESET 3
VCC3.3V-ST 2,10
VCC5V-ST 2,13
RXE1- 14
RXE0- 14
RXE0+ 14
RXEC+ 14
RXEC- 14
RXE2+ 14
RXE2- 14
RXE3+ 14
RXE3- 14
RXO1- 14
RXO1+ 14
RXO2- 14
RXO2+ 14
RXOC- 14
RXOC+ 14
RXO3- 14
RXO3+ 14
RXO0- 14
RXO0+ 14
RXE1+ 14
MDATA[16..31]
7
MDATA[0..15]
7
MADR[0..12]
7
CKE
7
MCLK+
7
MCLK- 7
CAS
7
RAS
7
WEZ 7
BA0
7
BA1
7
DQS2
7
DQM2 7
DQM3 7
DQS3 7
DQS1 7
DQM1 7
DQM0 7 DQS0 7
MDDR_VREF 7
HDMI-CEC 10
POWER-SAVING-GPIO98 13
AU_DACO_0L 13
AU_DACO_0R 13
ViewSonic Corporation 69 VT2430-1M
Confidential - Do Not Copy