ViewSonic N4285p-4M Service Manual page 74

8.11. USB_FLASH_DEBUG_KEYPAD CON
USB CONNECTOR
L118
CHOKE_CM14
4 1
4 SIS_USBA_DN
3 2
4 SIS_USBA_DP
DEBUG PORT
R218 NC/33R
4 DEBUG0
4 DEBUG2
4 DEBUG4
4 DEBUG1
4 DEBUG3
CODE FLASH/DATA FLASH
V_3.3V_SPI
4 SIS_SPI_CS0_N
R227 100R FLASH_SPI_DI_R
4 FLASH_SPI_DI
4 CODE_FLASH_WP_N
GND
SPI_for HW TRAP
V_3.3V_SPI
SIS_SPI_CS0_N R377 6.8K
SIS_SPI_CS1_N R378 6.8K
SIS_SPI_CLK R379 6.8K
GND
ViewSonic Corporation
V_5V F101 L117
6V 1.1A 120Z0805_3A
USB1_5V_FB USB1_5V
1 2
USB_A_DN
USB_A_DP
D104
D105 D106
C209 C208
+
470pF 100uF_16V_LESR 4.7P
4.7P 4.7P
GND
GND GND GND GND GND
P119
USB1_5V
1
USB_A_DN
2
USB_A_DP
3
GND
4
5
B5B-PH
5P200VM
GND
V_3.3V_AUX
DEBUG0 R211 1K
NC/3.3K DEBUG2 R212 1K
NC/2x7HEADER
DEBUG1 R213 1K
DEBUG4 R214 1K
R237
13 14
11 12
R217 1K
9 10
4 DEBUG5
7 8
R219
5 6
0R
3 4
1 2
DEBUG3 R222 1K
JP02
JP04: short 2-3 as default
GND
R225
4 SIS_SPI_CS1_N
C219 C220
R226
4 DATA_FLASH_WP_N
10uF_10V 100nF_16V 4.7K
4.7K
GND V_3.3V_SPI
I119
1 8
S# VCC
HOLD_N
2 7
SPI +UART PORT
Q HOLD#
3 6
SIS_SPI_CLK 4
W#/VPP C
4 5
VSS D SIS_SPI_DO 4
MX25L3205DM21-12G SOIC-8L
CODE FLASH
SIS_SPI_CS0_N
SIS_SPI_CS_N
SIS_SPI_CS1_N
建議量產時可省下
KEYPAD / IR CONNECTOR
P106 5 KEYPAD0_SIS
5 KEYPAD1_SIS
1
PW
2
DATA-
3
DATA+
4 V_3.3V
GND
5
FGND1
6
FGND2
USB-A female R199
1.5K R200 R201
100R 100R
USB PORT Volume+
4:GND
R202 R203
3:D+
665R_1% 665R_1%
2:D-
1:+5V
CH-_DOWN
R204 R205
806R_1% 806R_1%
Enter_Source
R206 R207
1.96K_1% 1.96K_1%
TP110
V_3.3V_AUX
R209 R210
11.5K_1% 11.5K_1%
NC/1x3HEADER_SW
1 GND
1
2
2
3
3
JP04
MCU_INTR
MCU_SCLK
MCU_SDA
GND
V_3.3V_SPI V_3.3V_SPI
R223
4.7K R224
4.7K
I116
1 8
S# VCC
FLASH_SPI_DI RESET_N
2 7
Q RESET#
3 6
TSL# C SIS_SPI_CLK 4
4 5
SIS_SPI_DO 4
VSS D
MX25L1605DM21-12G SOIC-8L C213
100nF_16V
DATA FLASH
GND GND
JPSW05:
SHORT 1-2 SELECT CODE FLASH(DEFAULT)
SHORT 2-3 SELECT DATA FLASH
P109
1
1
2
2
JP05
3
3
1 4
SIS_SPI_CLK 4
1 4
2 5
2 5 SIS_SPI_DO 4
SIS_SPI_CS_N
3 6
3 6
7
7 FLASH_SPI_DI 4
1x3HEADER_SW
8
AUX_PWROK 4
8
9
9
V_3.3V_SF100
1
B9B-PH
V_3.3V_AUX
GND
2
R464 NC/0
BAT54C
上 464
D107, R
71
Menu_Exit
Enter_Source
CH+_UP
FOR DEBUG CH-_DOWN
JP01 Volume+
Volume-
1
2
3
B7B-PH
1x3HEADER 7P200H3
GND
GND
V_3.3V_AUX
R197
1.5K
Volume- R208
NC/10K
R215
100R
4 KEYPAD_PWRKEY_SIS_N
CH+_UP
4 IR_SIS
R220
4 SIS_G_LED
R221
4 SIS_R_LED
Menu_Exit
C212
100nF_16V
GND
TP111
I104
SN06-01-IIC_RC5_V101_SSOP_16
V_3.3V_AUX SN8P2501BX_SSOP_16
1
2
3
R471
4
100K
5
6
R472 100R
7
8
V_3.3V_AUX
C218
R473 4.7K 100nF_16V
R474 4.7K
R475 4.7K
GND GND
RS232 BOARD INPUT
V_5V_AUX
R414 0R RS232_RXB
4 UARTB_RX
R415 3.3K RS232_TXB
4 UARTB_TX
R416 100R
4 KEYPAD_PWRKEY_SIS_N
V_5V
V_3.3V_SPI
3
D107
Confidential - Do Not Copy
P105
7
6
5
4
KeyPad
3
2
1
LED & IR
R470
10K
P107
PWRKEY
1
2
3
4
4.7K
5
100R
6
B6B-PH
6P200VM
GND
16
IR_SIS
15
14 MCU_INTR
MCU_INTR 4
13
12
MCU_SCLK
11
MCU_SCLK 4
MCU_SDA
10
MCU_SDA 4
9
GND
P108
1
2
3
4
5
6
B6B-PH
6P200VM
GND
N4285p-4M