8
.1.
SIS328_MISC&OUTPUT
When the VIH of PS_ON is larger
than 3.3V, please stuff R376
and program PS_ON as open-dran
mode.
PS_ON
CLOCK OSC
Cload: 16pF
LVDS
HSGPIO23 IS HW TRAP, AND CAN
NOT BE USED AS OTHER
FUNCTION
AUX PWR:Red LED
Main PWR:Green LED
.
IC Vi
請留意 接地時請勿於
底下直接打
a
,
IC
需拉至
外在接地
Reset Function
Cload: 20pF
USB
H: enable booting menu
default:short 2-3
Vth=3.08V
8 mils
SIS_HDMIA_SDA_R
SIS_HDMIA_SCL_R
SIS_VGA_SDA_R
SIS_VGA_SCL_R
SIS_HDMIB_SCL_R
SIS_HDMIB_SDA_R
XOSCI
XOSCO_R
XOSCO
HSAGPIO23
SIS_PSON
SIS_MS_SDA_A
SIS_MS_SCL_A
SIS_LVDS_SWING_C
HSAGPIO31
USB_REXT
SIS_VGA_SCL_R
SIS_MS_SDA_A_R
SIS_HDMIB_SDA_R
SIS_HDMIA_SDA_R
SIS_HDMIA_SCL_R
HSAGPIO21
XOSCI
HSAGPIO27
HSAGPIO23
USB_CLKO
GPIO29
HSAGPIO25
SIS_AMP_EN
XOSCO
HSAGPIO20
STBY_SP_N
SIS_VGA_SDA_R
328_AMP_RST_N
HP_DET
AV_CVBSO
GPIO1
HSAGPIO28
SIS_LVDSA_TX4_DN
VGA_WAKE
UARTB_RX
SIS_LVDSA_TX4_DP
USB_CLKI
SIS_LVDSB_TX4_DP
SIS_MS_SCL_A_R
SIS_HDMIB_SCL_R
HSAGPIO22
SIS_LVDS_SWING
SIS_LVDSB_TX4_DN
GPIO7
UARTB_TX
HSAGPIO26
HSAGPIO24
GPIO28
GPIO5
ENTEST
UARTA_TX_R
UARTA_RX_R
MAIN_PWROK
AUX_PWROK
USB_CLKI
USB_REXT
USB_CLKO_R
ENDEBUG
AUX_PWROK
SIS_EXT_RST_N
GPIO17
USB_CLKO_R
USB_CLKO
HSAGPIO22
MAIN_PWROK
SIS_LVDS_SWING
KEYPAD_PWRKEY_SIS_N
14
SIS_LCDVDD_EN
15
FLASH_SPI_DI 14
SIS_SPI_DO 14
SIS_SPI_CLK 14
SIS_SPI_CS1_N 14
DEBUG0
14
SIS_HDMIB_SCL 11
SIS_HDMIB_SDA 11
SIS_HDMIA_SCL 11
SIS_HDMIA_SDA 11
SIS_VGA_SDA 12
SIS_VGA_SCL 12
SIS_LVDSA_TX2_DN 15
SIS_LVDSA_TX3_DP 15
SIS_LVDSA_TX0_DP 15
SIS_LVDSA_TX1_DP 15
SIS_LVDSA_TX0_DN 15
SIS_LVDSA_TX1_DN 15
SIS_LVDSA_TX2_DP 15
SIS_LVDSA_CLK_DP 15
SIS_LVDSB_TX0_DP 15
SIS_LVDSA_CLK_DN 15
SIS_LVDSB_TX1_DN 15
SIS_LVDSB_TX0_DN 15
SIS_LVDSA_TX3_DN 15
SIS_LVDSB_TX1_DP 15
SIS_LVDSB_TX2_DN 15
SIS_LVDSB_TX2_DP 15
PWM2
16
SIS_MS_SCL_A 18
SIS_MS_SDA_A 18
SIS_BL_EN
16
SIS_PSON
16
AUX_PWROK
14
SIS_R_LED
14
SIS_G_LED
14
DEBUG1
14
DEBUG2
14
DEBUG3
14
DEBUG5
14
DEBUG4
14
HP_DET
13
SIS_SPI_CS0_N 14
SIS_MUTE_SP_N
10
SIS_LVDSB_TX3_DN 15
SIS_LVDSB_TX3_DP 15
SIS_USBA_DN 14
SIS_USBA_DP 14
SIS_LVDSB_CLK_DP 15
SIS_LVDSB_CLK_DN 15
IR_SIS
14
UARTA_RX
12
UARTA_TX
12
UARTB_TX
14
UARTB_RX
14
VGA_EDID_WP
12
HEADPHONE/LINEOUT_MUTE
13
DATA_FLASH_WP_N
14
CODE_FLASH_WP_N
14
SIS_EXT_RST_N
18
MCU_INTR
14
MCU_SCLK
14
MCU_SDA
14
AUDIO_EN
19
AUDIO_DAC_EN
19
RS232_EN_VGA
12
VGA_HSYNC
5,12
VGA_VSYNC
5,12
V_5V_AUX
V_5V_AUX
GND
GND
V_3.3V
GND
GND
GND
GND
V_3.3V
GND
V_3.3V_AUX
GND
GND
GND
GND
GND
GND
V_3.3V_AUX
GND
GND
V_3.3V_AUX
GND
GND
GND
GND
R357
33R
C444
10uF_10V
TP101
R375
0R
CLOCK
MISC
IR
SPI
RS232
I2C
USB
LVDS
CVBS OUTPUT
I121A
sis328_ATSC_V02
AL24
AK24
AK25
AJ22
AM24
AM25
AL29
AK29
AM28
AH26
AM15
AL15
AK15
AH15
AJ15
AM16
AL16
AM17
AK16
AJ16
AL17
AK17
AM18
AH17
AL18
AJ18
AK18
AM19
AL19
AG19
AK19
AK20
AK22
AM23
AL23
AG21
AK23
AG25
AJ27
AK27
A20
B20
C19
D19
C18
B18
A18
AG23
AH22
AL25
AM26
F29
E29
F9
E9
B9
A9
D10
C10
E11
F11
A11
B11
C12
D12
E13
F13
A13
B13
C14
D14
E15
F15
A15
B15
C16
D16
A12
AM27
AL27
AF29
AH19
AM20
AL20
AM21
AL21
AK21
AJ21
AM22
AL22
AJ20
AH27
AK28
AJ28
AL28
AUX_PWROK
PWRBTN_N
PS_ON
ENTEST
ENDEBUG
MAIN_PWROK
OSCI
OSCO
PWM0
PWM1
HSAGPIO0 / VGA_WAKE
HSAGPIO1 / BL_EN
HSAGPIO2 / LCDVDD_EN
HSAGPIO3 / STBY_N_SP
HSAGPIO4 / MUTE_N_SP
HSAGPIO5 / BLK_LED0
HSAGPIO6 / BLK_LED1
HSAGPIO8 / HP_DET
HSAGPIO7 / HP_AMP_EN
HSAGPIO9 / DEBUG0
HSAGPIO10 / DEBUG1
HSAGPIO11 / DEBUG2
HSAGPIO12 / DEBUG3
HSAGPIO13 / DEBUG4
HSAGPIO14 / DEBUG5
HSAGPIO15 / VIDEO_SW0
HSAGPIO16 / VIDEO_SW1
HSAGPIO17/TUNER_ATV_PWR_EN
HSAGPIO18/AMP_RST_N
HSAGPIO19/AMP_EN
HSAGPIO20
HSAGPIO21
SPI_CLK
SPI_DO
SPI_DI
SPI_CS0_N
SPI_CS1_N
IR
UARTA_TX
UARTA_RX
USBA_P
USBA_N
USBB_P
USBB_N
USB_REXT
USB_CLKI
USB_CLKO
HDMIA_SCL
HDMIA_SDA
HDMIB_SCL
HDMIB_SDA
I2CMA_SCL
I2CMA_SDA
LVDSA_TX0N
LVDSA_TX0P
LVDSA_TX1N
LVDSA_TX1P
LVDSA_TX2N
LVDSA_TX2P
LVDSA_TX3P
LVDSA_TX3N
LVDSA_TX4P
LVDSA_TX4N
LVDSA_CLKP
LVDSA_CLKN
LVDSB_CLKP
LVDSB_CLKN
LVDSB_TX0P
LVDSB_TX0N
LVDSB_TX1P
LVDSB_TX1N
LVDSB_TX2P
LVDSB_TX2N
LVDSB_TX3P
LVDSB_TX3N
LVDSB_TX4P
LVDSB_TX4N
LVDS_EXTSWING
VGA_SCL
VGA_SDA
AV_CVBSO
HSAGPIO22
HSAGPIO23
HSAGPIO24
HSAGPIO25
HSAGPIO26
HSAGPIO27
HSAGPIO28
HSAGPIO29
HSAGPIO30
HSAGPIO31/CLK49M_OUT
HVAGPIO32/UARTBRX
HVAGPIO33/UARTBTX
HVAGPIO34/PWM2
HVAGPIO35/PWM3
R367
33R
X101
24.576MHz
1
2
TP212
C435
20pF
I124
APX809-31SA_SOT23
1
3
2
GND
VCC
RESET#
R390
NC/6.19K_1%
R380
0R
D128
1N4148
1
2
R101
0R
S101
BUTTON
1
3
2
4
TP227
R370
33R
R369
4.7K
X103
12MHz
1
2
TP225
C442
1uF_16V
TP224
R395
NC/22K
R393
3.3K
R381
0R
R354
2.2K
R376
NC/4.7K
TP214
TP215
TP222
R373
33R
C438
30pF
TP226
R396
3.3K
R385
NC/100K
R392
6.04K_1%
TP219
R389
0R
R360
NC/4.7K
R386
1K_1%
C436
20pF
R382
10K
JP06
1x3HEADER_SW
1
2
3
1
2
3
R372
33R
R384
10K
R403
1.8K
R387
10K
R366
33R
R368
4.7K
R363
33R
TP211
R352
2.2K
R359
33R
R404
1.8K
TP209
R355
33R
C434
NC/100nF_16V
R391
NC/10K
TP105
R365
33R
R358
33R
D127
1N4148
1
2
TP210
R374
0R
C437
NC/100n_16V
TP217
R364
47K
R361
47K
R356
33R
C440
NC/100nF_16V
C441
NC/100nF_16V
R371
33R
R383
10K
R353
33R
C439
30pF
R388
10K
TP220
C443
NC/47pF
TP216
R362
NC/4.7K
R394
NC/10K
8
. Schematic Diagrams
ViewSonic Corporation
Confidential - Do Not Copy
N4285p-4M
61
Summary of Contents for N4285p-4M
Page 59: ...Panel Unit ViewSonic Corporation Confidential Do Not Copy N4285p 4M 56...
Page 83: ...9 2 MAIN PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 80...
Page 86: ...9 7 SWITCH PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 83...
Page 87: ...9 8 SWITCH PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 84...
Page 88: ...9 9 RS232 PCB TOP VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 85...
Page 89: ...9 10 RS232 PCB BOTTOM VIEW ViewSonic Corporation Confidential Do Not Copy N4285p 4M 86...
Page 91: ...ViewSonic Corporation Confidential Do Not Copy N4285p 4M 88...