Hitachi L42A404 Service Manual page 18

7. SIO I/F
D3V3
U401C
R409 R401
SIO I/F 4K7 1/10W 5% 4K7 1/10W 5%
E16 TRSTN
TRST
E14 EJTDI
TDI_T
E18
EJTDO
TDO_T
E15
EJTMS
TMS
E17 EJTCK
JTAG/EJTAG
TCK
E19 TDI_M
TDI_M
B25 TDO_M
TDO_M
E13
R418 NC/4K7 1/10W 5%
TAPSEL
D13
R420 4K7 1/10W 5% C4F6
TAPSEL_CAS
L22 UART0_TX
UART0_TX
UART0_TX
M22 UART0_RX
UART0_RX UART0_RX
UART
P22
UART1_TX
N22
UART1_RX
R22 KEY_IR
IRR KEY_IR
R423 2K2 1/10W 5%
R424 2K2 1/10W 5%
R425 2K2 1/10W 5%
R427 2K2 1/10W 5%
R428 4K7 1/10W 5%
AC16
I2C0_SCL
I2C0_SCL
I2C0_C
AC17 I2C0_SDA
I2C0_SDA
I2C0_D
AC18 I2C1_SCL
I2C
I2C1_C I2C1_SCL
AC19
I2C1_SDA
I2C1_SDA
I2C1_D
AC20
I2C2_SCL
TV_I2C2_C
AC21
I2C2_SDA
TV_I2C2_D
AC22
I2C_MORPH__ENA
AB24
R430 47R 1/10W 5%
SPI_DO
AC25
R431 47R 1/10W 5%
SPI_DI
AB25
SPI R432 47R 1/10W 5%
SPI_CLK
AC24
R433 47R 1/10W 5%
SPI_SEL0
AC26
SPI_SEL1
AB26
R434 47R 1/10W 5%
SPI_HOLD
0402 3V3_STB
C405 0.1uF 16V
W26
R437 100R 1/10W 5%
RESET_N
AD7
R443 10K 1/10W 5%
TRIN_RESET_N
AB22 MOR_RSTN
MOR_RESET_N
AB21
470R 1/10W 5%R440
MOR_RESET_N_OUT
R439
C412
N2
CLKOUT_25M
N1
CLKIN_25M
R441
1M 1/16W 5% R442
330R 1/10W 5%
X401 25MHz
C408 C409
27pF 30PF50V
AB12
USB_PADN
AC12
USB_PADP
AF26 USB2_DN
USB
USB2_DN
AE26
USB2_DP
USB2_DP
AD26
R445 6.04 K OHM 1% 1/10W
USB2_REXT
AD25
USB2_ATEST
U26
CLKIN_24M
U25
D3V3
CLKOUT_24M
AF3
R448 4K7 1/10W 5%
CLKIN_SEL
ZR39785HGCF
R404 R405
4K7 1/10W 5%
1K 1/10W 5%
R410 33R 1/10W 5%
R411 NC/33R 1/10W 5%
R412 NC/33R 1/10W 5%
R413 33R 1/10W 5%
R415 33R 1/10W 5%
R416 33R 1/10W 5%
R417 33R 1/10W 5%
0.001uF
6
6
8
D3V3
3V3_STB
10
D3V3
10
3,5
3,5
D3V3
R429
4K7 1/10W 5%
SPI_WR
SPI_RD
SPI_CLK
SPI_CS_N
SPI_WEN
8 SPI_WEN
SPI_HOLD
R435
RESET_N 4K7 1/10W 5%
10K 1/10W 5%
0.47uF/16V
Crystal X401
35ppm 20
50ppm 0~70
USB5V
1
CN402
2
3
CONNNECTOR
4
C4E2 C4E6
88G 352
NC/22P NC/22P
L42A404
D3V3
EJTAG I/F
R406 R407 R408
NC
1K 1/10W 5% CN401
1K 1/10W 5%
2 1
4 3
6 5
8 7
D3V3
10 9
RESET_N 12 11
14 13
NC/E-JTAG2X7
HEADER 2X7P S/T 2.5mm
U404 should be programmed
before soldering on PCB
U404
SPI FLASH
32M bit
15 3
D NC1
8 4
Q NC2
16 5
C NC3
7 6
S NC4
9 11
W NC5
1 12
HOLD NC6
14 13
NC8 NC7
2 10
Vcc GND
C406
MX25L3205DMI-12G
0.1uF/16V
USB
Port
21CL
18
3V3_STB 3V3_STB
2
R491 NC
3
C499 U403
NC
NC
3V3_STB
NC/0.1uF/16V
C4G1
SW401
4
1 SW_RST 3
2
NC/CONN
EEPROM_WP1
8 EEPROM_WP1
I2C0_SCL
I2C0_SDA
VCC5D USB5V
D401
1 2
RB160M-60TE25
R422
U408
NC/100K
4 5
IN OUT
1 3
8 USB_EN_N
EN OC
G5250K1T1U
MCU Reset 2 Circuit
4 RESET_N
MCU Reset Circuit
Reserve
U412
1
VCC GND
2 RESET_N
MR RESET
G692L293TCUf 2.91V
C436
100Kohm/0.01uF
D3V3
C404 R436
220N 10V 10K 1/10W 5%
U405
8 1
VCC E0
7 2
WC E1
6 3
R402 100R 1/10W 5%
SCL E2
5 4
R403 100R 1/10W 5%
SDA VSS
M24C64-WMN6P
VCC5D
R4K2
100K 1/10W 5%
USB_OC_N 8