![background image](http://html1.mh-extra.com/html/viewsonic/vs15197/vs15197_service-manual_1021466051.webp)
WIRE
FE2P
Close Scaler
LED 5V
POWER
PROTECT
OD
OD
PP
PP
PP
OD
PP
PP
PP
OD
OD
OD
PP
OD
OD
PP
PP
PP
OD
OD
OD
OD
Get Vol
I2C address: ??H
Scaler S0
In Status
REP Status
Scaler S1
SOC S1
SOC S0
AUDIO_VP BIAS POWER
V
F
B
3
V
F
B
1
VLED
BIN3
BIN1
BIN2
BIN4
V
F
B
4
SPI_CK
SPI_CE
HOLD
SPI_SO
SPI_WP
SPI_SI
MSCL
MSDA
EE_WP
OVP
SENP
VLED
B
IN
3
DRV
V
D
T
4
V
D
T
3
V
D
T
2
V
D
T
1
COMP
SC_ADKEY2
POWER_ON
VDT2
VDT3
VFB4
VFB1
VFB3
VDT4
VFB2
VDT1
SOC_WAKE
SC_UART_INT
FB
FB
BOOT
B
IN
1
B
IN
2
B
IN
4
V
F
B
2
SENN
EE_WP
COMP
OVP
SENP
SENN
DRV
MSCL
SPI_CK
MSDA
SPI_SI
SPI_WP
SPI_SO
SPI_CE
BOOT
RXBCKN
RXBCKP
RXB0N
RXB0P
RXB1N
RXB1P
RXB2N
RXB2P
DDCDB_SDA
DDCDB_SCL
SC_ADKEY1
on_AUDIOPVDD
SCALER_ID
SOC_WAKE
GPIO_REV1_3V3
GPIO_REV2_3V3
GPIO_REV3_3V3
GPIO_REV4_3V3
GPIO_REV6_3V3
GPIO_REV7_3V3
KEY_INTERRUPT
SC_UART_INT
GPIO_REV5_3V3
POWER_ON
SCL_RX
SDA_TX
GPIO_REV1_3V3
GPIO_REV2_3V3
SCL_RX
SDA_TX
MSDA
MSCL
GPIO_REV3_3V3
GPIO_REV4_3V3
GPIO_REV6_3V3
GPIO_REV7_3V3
SC_TOUCH_SEL
SOC_PW_ON
SCALER_ID
KEY_INTERRUPT
LEDB_CTRL
LEDA_CTRL
LEDB_CTRL
LED_B
LED_A
LEDA_CTRL
ADKEY2
ADKEY1
SC_ADKEY1
SC_ADKEY2
SC_SYS_RSTIN_3V3
SC_USBHUB_RST
GPIO_REV5_3V3
SC_RECOVERY
B
IN
1
B
IN
2
B
IN
3
B
IN
4
T0M
T0P
T1M
T1P
T2M
T2P
TCLK1M
TCLKIP
T3M
T3P
T4P
T5M
T5P
T6M
T6P
TCLK2M
TCLK2P
T7M
T7P
T4M
N19948085
N19167526
TVCC
OSC_VDD
+1V2
PGND
PGND
GND
GND
GND
PGND
PGND
PGND
PGND
PGND
GND
PGND
PGND
PGND
DVDD
PGND
TVCC
PGND
PGND
GND
ADC_1.2V
+1V2
MVDD
CVDD_1.2V
MVDD
PGND
CVDD_1.2V
GND
DVDD
GND
GND
GND
LED_5V
AUDIO_VDD
GND
GND
MVDD
GND
GND
GND
DVDD
CVDD_1.2V
AUDIO_VDD
GND
OSC_VDD
GND
PGND
PGND
DVDD
PGND
CVDD_1.2V
PGND
PGND
LED_5V
VDD_5V0
VDD_5V0
+19VIN
VDD_5V0
ADC_1.2V
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
GND
GND
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
GND
GND
SC_AGND
SC_AGND
GND
GND
SC_AGND
GND
GND
GND
GND
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
VDD_3V3_SCALER
+1V2
GND
GND
GND
MVDD
VDD_5V0
GND
GND
GND
GND
GND
PGND
PGND
PGND
PGND
PGND
AUDIO_VP
VDD_5V0
SC_AGND
AUDIO_VDD
AUDIO_VP
SC_AGND
SC_AGND
GND
HDMI1_HPD
31
HDMI1_DET
31
HDMI2_HPD
32
RX11-
31
RX10+
31
RX1C+
31
RX10-
31
RX12-
31
RX12+
31
RX11+
31
RX1C-
31
CEC_CTRL
31
CD_SENS1
31
SOC_WAKE
30
VBUS_CTR1
31
HA_DDC_SCL_SC
31
HA_DDC_SDA_SC
31
EDID_WP
31,32
on_PANEL
36
on_AUDIOPVDD
23
AUDIO_MUTE
24,42
MHL1_OC
31
HB_DDC_SDA
10,32
HB_DDC_SCL
10,32
HDMI_TXD2P
10
HDMI_TXD2N
10
HDMI_TXD1P
10
HDMI_TXD1N
10
HDMI_TXD0P
10
HDMI_TXD0N
10
HDMI_TXCP
10
HDMI_TXCN
10
MSCL
28
MSDA
28
POWER_ON
30
SC_UART_INT
6
SCL_SC_RX
32
SDA_SC_TX
32
GPIO_REV1_3V3
6
GPIO_REV2_3V3
6
GPIO_REV4_3V3
6
GPIO_REV3_3V3
6
SOC_PW_ON
30
GPIO_REV6_3V3
6
GPIO_REV7_3V3
6
SC_TOUCH_SEL
20
SCALER_ID
30
KEY_INTERRUPT
28
LED_A
28
LED_B
28
ADKEY1
28
ADKEY2
28
SC_USBHUB_RST
20
SC_AUDIO_MCLK
24
SC_BCLK
24
SC_WCLK
24
SC_DOUT
24
SC_BCLK_T
13
SC_WCLK_T
13
SC_DOUT_T
13
SC_RECOVERY
6
GPIO_REV5_3V3
6
SC_SYS_RSTIN_3V3
37
LVDS2_DN0
28,29
LVDS2_DP0
28,29
LVDS2_DN1
28,29
LVDS2_DP1
28,29
LVDS2_DN2
28,29
LVDS2_DP2
28,29
LVDS2_CLKP
28,29
LVDS2_CLKN
28,29
LVDS2_DN3
28,29
LVDS2_DP3
28,29
LVDS_DN0
28,29
LVDS_DP0
28,29
LVDS_DN1
28,29
LVDS_DP1
28,29
LVDS_DN2
28,29
LVDS_DP2
28,29
LVDS_CLKN
28,29
LVDS_CLKP
28,29
LVDS_DN3
28,29
LVDS_DP3
28,29
R856
*NC/27K_4
R918
*0_4
T269
PR64
5R1
RC0805
+
PC76
22U
ELEC
100V
D8*10MM
C559
0.1u/16V_4
0.1u/16V_4
C547
RP45
0_4P2R
1
2
4
3
PAD
PAD3
PAD_S205
PAD_S205
1
C620
22u/6.3V_8
PC74
100P
50V
NPO
0402
R
5
2
7
*1
0
K
_
4
R958
*4.7K_4
R976
280k_4 1%
R858
0_4
1M
PR62
C613
10u/10V_8
10R_8
PR75
PAD
PAD1
PAD_S205
PAD_S205
1
PQ9
MMBT3906
3
2
1
R
5
4
8
1
0
K
_
4
121A40_8
FB1
R870
100_4
R990
*0_4
R872
10K_4
0.1u/16V_4
C542
Q28
2N7002
3
1
2
PC83
330u/2.5V_3528
PR69
1K_6
RP36
0_4P2R
1
2
4
3
C617
0.1u/16V_4
R868
0_4
R919
0_4
R861
0_4
Q31
2N7002
3
1
2
PC86
0.1u/50V_6
PAD
PAD4
PAD_S205
PAD_S205
1
R961
*4.7K_4
R
5
2
8
*1
0
K
_
4
R865
0_4
Q30
2N7002
3
1
2
T272
0.1u/16V_4
C558
R862
0_4
PR78
100_6
PR70
10_4
1%
0402
U78
PCA9555PW
A2
3
INT
1
SCL
22
A1
2
A0
21
SDA
23
VDD
24
G
N
D
1
2
P04
8
P07
11
P01
5
P03
7
P06
10
P00
4
P05
9
P02
6
P10
13
P11
14
P12
15
P13
16
P14
17
P15
18
P16
19
P17
20
150K
PR71
121A40_8
FB4
R
7
6
7
*1
0
K
_
4
C618
0
.1
u
/1
6
V
_
4
PR66
5R1
RC0805
R863
0_4
RP41
0_4P2R
1
2
4
3
R
5
4
9
1
0
K
_
4
C567
0.1u/16V_4
C569
22p/50V_4
R977
200k_4 1%
PD3
BX310
100V
3A
C560
0.1u/16V_4
R989
*0_4
PR81
0.1
5%
1206
C541
10u/10V_8
C552
10u/10V_8
R
7
6
8
*1
0
K
_
4
L107
121A40_8
R860
470_4 1%
CN14
Debug_Port
1
2
3
4
5
6
PL16
33uH/3A
T273
R995
0_4
PR67
5R1
RC0805
C545
0.1u/16V_4
R873
*NC/10_4
R915
10K_4
0.1u/16V_4
C555
CN32
3802-E06N-01R
1
1
2
2
3
3
4
4
5
5
6
6
8
8
7
7
R912
0_4
PC68
1u/25V_6
U81
LM3671MF-ADJ
VIN
1
EN
3
SW
5
GND
2
FB
4
Q34
*MMBT3906
3
2
1
0.1u/16V_4
C551
R
5
4
5
1
0
K
_
4
R885
1K 1%
PC77
*0.1u/50V_6
T270
RP37
0_4P2R
1
2
4
3
PR72
*10K_4
1%
0402
R887
100_4
PR77
*10K_4
1%
0402
C408
0.1uF/16V_4
R936
10K_4
R871
*10_4
R864
0_4
R
8
7
5
1
0
K
_
4
PR76
47k_6
1%
C563
0.1u/16V_4
RP42
0_4P2R
1
2
4
3
R913
0_4
0.1u/16V_4
PC67
C
7
2
3
3
p
F
/6
*NC
PR63
R994
0_4
R935
10K_4
0.1u/16V_4
C556
R882
100_4
C619
22u/6.3V_8
C543
10u/10V_8
R880
*4.7K_4
C568
22p/50V_4
R
5
4
2
1
0
K
_
4
R916
*10K_4
PR79
0.1
5%
1206
150K
PR73
L113
*0_6/S
R855
33_4
T271
121A40_8
FB2
R
5
3
0
*1
0
K
_
4
0.1u/16V_4
C562
PR80
0.1
5%
1206
R
6
9
1
*1
0
K
_
4
C634
*330p/50V_6
R514
*100K_4
+
PC69
100U
25V
ELEC
D6.3*5.8MM
C565
*4.7u/10V_6
1
2
U72
NT68785
RX20-/MHL2-
23
RX2C+
22
RX2C-
21
REXT
20
PE3*/CEC1*
19
PB6*/SCL1*/RXD1*
18
PB7*/SDA1/TXD1*
17
PA5*/INTE3*/CBUS2*
16
RX20+/MHL2+
24
RX21-
25
RX21+
26
RX22-
27
RX22+
28
TGND
29
ADC_3.3V/TVCC
30
ADC_1.2V
31
AGND
32
B
IN
+
3
3
B
IN
-
3
4
G
IN
+
3
5
G
IN
-
3
6
R
IN
+
3
7
R
IN
-
3
8
O
S
C
I
4
6
V
S
Y
C
I/
T
O
U
T
P
4
0
O
S
C
_
G
N
D
/D
G
N
D
4
7
M
C
L
K
/A
O
U
T
_
L
6
2
P
B
0
/I
N
T
E
0
/A
D
C
0
4
8
M
V
D
D
5
2
A
U
D
IO
_
V
D
D
5
7
P
B
1
/A
D
C
1
4
9
P
A
3
*/
P
W
M
D
*
5
0
P
B
2
/I
N
T
1
/A
D
C
2
1
2
6
A
U
D
IO
_
V
P
6
3
A
U
D
IO
_
G
N
D
6
4
D
G
N
D
1
1
8
SPI_CLK
73
T0M
94
T0P
93
T1M
92
T1P
91
T2M
90
T2P
89
TCLK1M
88
TCLK1P
87
T3M
86
T3P
85
T4M
84
T4P
83
T5M
82
T5P
81
T6M
80
T6P
79
TCLK2M
78
TCLK2P
77
T7M
76
T7P
75
LVDS_GND/DGND
74
RX10-/MHL1-
7
M
V
R
E
F
_
1
.2
5
V
5
1
RX1C+
6
RX1C-
5
P35*/LPD_OUT*
67
O
S
C
_
V
D
D
4
4
P
B
4
*/
S
C
L
0
*/
R
X
D
0
*
4
2
P
C
5
/I
R
2
/P
W
M
D
4
3
P
B
5
*/
S
D
A
0
*/
T
X
D
0
*
4
1
C
V
D
D
_
1
.2
V
5
5
H
S
Y
N
C
I
3
9
PA7*/SDA3*/TXD3*
2
PA4*/INTE2*/CBUS1*
1
TVCC
4
P
3
1
*/
T
X
D
*
1
2
2
P
C
4
/I
R
1
/P
W
M
C
1
2
1
V
F
B
1
1
0
5
V
D
E
T
1
1
0
4
F
B
1
0
3
O
V
P
1
0
2
D
R
V
*
9
8
S
E
N
P
1
0
1
C
O
M
P
9
9
S
E
N
N
1
0
0
LVDS_3.3V
95
V
F
B
4
1
1
4
V
D
E
T
4
1
1
3
IS
E
N
3
1
1
2
V
F
B
3
1
1
1
C
V
D
D
_
1
.2
V
1
1
7
M
V
D
D
1
1
9
D
V
D
D
/L
E
D
_
3
.3
V
1
1
6
IS
E
N
4
1
1
5
IS
E
N
2
1
0
9
V
F
B
2
1
0
8
V
D
E
T
3
1
1
0
V
D
E
T
2
1
0
7
IS
E
N
1
1
0
6
PA6*/SCL3*/RXD3*
3
RX11-
9
RX10+/MHL1+
8
RX11+
10
RX12-
11
RX12+
12
PA0*/ADC4/CD_SENS1*
13
PA1*/ADC5/CD_SENS2*
14
PC3*/VBUS_CTRL2*
15
O
S
C
O
4
5
D
V
D
D
5
3
R
S
T
B
5
4
P
C
7
/I
R
3
/S
P
D
IF
5
6
PC6/MUTE/PWMB
65
W
D
/A
IN
_
R
5
9
I2
S
0
/A
IN
_
L
6
0
S
C
K
/A
O
U
T
_
R
6
1
A
U
D
IO
_
C
E
X
T
1
5
8
PC0#/PWMB#
66
P34*
68
PE0#/PWMA#/DBC#
69
SPI_SO
71
SPI_SI
72
SPI_CE
70
P
E
1
*/
L
P
D
IN
0
*/
V
S
O
*
1
2
0
P
3
0
*/
R
X
D
*
1
2
3
P
B
3
/A
D
C
3
1
2
5
P
E
2
#
/P
W
M
C
#
1
2
4
P
A
2
*/
A
D
C
6
/C
E
C
0
*
1
2
7
P
C
2
*/
V
B
U
S
_
C
T
R
1
*
1
2
8
5
V
C
C
9
7
BOOT
96
E
P
_
P
A
D
1
2
9
R
5
3
2
*1
0
K
_
4
R869
10K_4
C561
10u/10V_8
0.1u/16V_4
C554
U82
AP1117ELA/TO223
ADJ/GND
1
VOUT
2
VIN
3
OUT
4
C544
0.1u/16V_4
L105
*0_6/S
R967
*10K_4
L114
*0_6/S
R854
33_4
RP38
0_4P2R
1
2
4
3
1M
R884
R857
0_4
R
5
4
0
*1
0
K
_
4
R
5
4
3
*1
0
K
_
4
C
6
1
5
1
2
p
/5
0
V
_
6
R945
0_6
R993
0_4
RP43
0_4P2R
1
2
4
3
PR68
10K_4
1%
0402
R888
1K 1%
PD2
BAV99
1
3
2
Q32
*MMBT3904
3
2
1
R
6
9
2
*1
0
K
_
4
R960
*100_6
L115
*0_6/S
R883
100_4
0.1u/16V_4
C548
R
5
2
4
*1
0
K
_
4
R
5
3
1
*1
0
K
_
4
C635
*330p/50V_6
121A40_8
FB7
D22
BAT54C
3
1
2
L110
*0_6/S
PR57
10_4
PR58
1K_4
C616
0.1u/16V_4
PC65
1u/25V_6
C591
10uF/16V_8
1M
PR61
R968
*10K_4
PC71
100P
50V
NPO
0402
PC73
2.2U
X7R
100V
1210
1
2
R978
330_6 1%
C566
*10u/10V_8
C621
2
2
u
/6
.3
V
_
8
PQ8
AOD482
100V
42mOHM
CRITICAL
3
4
1
Y6
12MHz
R874
10K_4
R
5
4
1
1
0
K
_
4
R
5
4
6
1
0
K
_
4
R937
*0_4
R866
0_4
R881
100_4
0.1u/16V_4
C549
L116
*0_6/S
R992
*0_4
PC75
*0.1u/50V_6
PC64
1u/16V_4
RP39
0_4P2R
1
2
4
3
PC66
100P
50V
NPO
0402
R
5
3
3
*1
0
K
_
4
C636
*330p/50V_6
R886
*20K_4
Q29
2N7002
3
1
2
L111
*0_6/S
R969
*1K_4
RP44
0_4P2R
1
2
4
3
R
5
2
5
*1
0
K
_
4
L106
SCDS 62T-3R3
PC72
2.2U
X7R
100V
1210
1
2
U74
AT24C16
A0
1
A1
2
A2
3
GND
4
VCC
8
WP
7
SDA
5
SCL
6
R
6
9
3
1
0
K
_
4
R962
*10K_4
PC70
0.1u/16V_4
C590
0.1uF/16V_4
1M
PR59
R959
*10K_4
121A40_8
FB6
R851
*10K_4
PD1
UDZ5V6B
2
1
R917
0_4
121A40_8
FB3
121A40_8
FB5
R859
100_4
R
5
4
7
*1
0
K
_
4
Q35
*MMBT3906
3
2
1
C550
4.7u/10V_6
1
2
C637
*330p/50V_6
C546
10u/10V_8
PAD
PAD2
PAD_S205
PAD_S205
1
U73 PM25LV020
CE
1
SO
2
WP
3
GND
4
SI
5
SCK
6
HOLD
7
VCC
8
R970
*1K_4
R
8
7
7
4
.7
K
_
4
R991
*0_4
R867
0_4
L112
*0_6/S
R996
0_4
R
8
7
6
4
.7
K
_
4
R
6
9
4
*1
0
K
_
4
R914
*10K_4
0.1u/16V_4
C553
R979
330_6 1%
R
5
2
6
*1
0
K
_
4
1M
PR60
PR74
*300K_4
1%
0402
I
R963
*330_6 1%
C557
10u/10V_8
PR65
5R1
RC0805
RP40
0_4P2R
1
2
4
3
50
Confidential - Do Not Copy
ViewSonic Corporation
VSD241/SD-A245/CDS245
Summary of Contents for VS15197
Page 8: ...2 Outline 7 Confidential Do Not Copy ViewSonic Corporation VSD241 SD A245 CDS245 ...
Page 64: ...6 1 Main Board 63 Confidential Do Not Copy ViewSonic Corporation VSD241 SD A245 CDS245 ...
Page 65: ...64 Confidential Do Not Copy ViewSonic Corporation VSD241 SD A245 CDS245 ...
Page 68: ...7 Exploded View 67 Confidential Do Not Copy ViewSonic Corporation VSD241 SD A245 CDS245 ...
Page 69: ...68 Confidential Do Not Copy ViewSonic Corporation VSD241 SD A245 CDS245 ...
Page 71: ...70 Confidential Do Not Copy ViewSonic Corporation VSD241 SD A245 CDS245 ...
Page 117: ...116 Confidential Do Not Copy ViewSonic Corporation VSD241 SD A245 CDS245 ...