RCA L37WD23 Service Manual page 39

37'' LCD TV
U401E
Super I/O
L4 IRR
IRR
IRR
N1 UART0TX
UART0TX
P1 UART0RX
UART0RX
L3 UART1TX
UART1TX
M1 UART1RX
UART1RX
H2
TPBIAS0
G2
TPA0_N
F1
TPA0
G1
TPB0_N
H3
TPB0
J4
TPBIAS1
J1
TPA1_N
H1
TPA1
J3
TPB1_N
J2
TPB1
G3 R413 5.9K 1/10W
1394_RSET
R1 I2C0CLK
I2C0CLK I2C0CLK 2,12
P2 I2C0DATA
I2C0DATA 2,12
I2C0DAT
M3 I2C1CLK
I2C1CLK 9,14,15
I2C1CLK
M2 I2C1DATA
I2C1DAT I2C1DATA 9,14,15
K5 TRSTN
TRSTN
K2 TDI
TDI
TDO
K4
TDO
TMS
K3
TMS
L1 TCK
TCLK
K1 TAPSEL
TAPSEL
W4 GPIO0
GPIO0
V5 GPIO1
GPIO1
U6 GPIO2
GPIO2
Y 4 GPIO3
GPIO3
N5 RESETN
RESETN RESETN 4,8,15
M4
CLKIN
N3 1
CLKOUT
R980 C4F3
150 1/10W X401
22pF 24.576MHz
ZR39661BGCG NEW Hank
VCC3V3_G9
C456
R4P8 R428 R429
0.1uF
U412 4.7K 1/10W
10K 1/10W 4.7K
1 8
A0 VCC
2 7
A1 WP
3 6 I2C0CLK
A2 SCL
4 5 I2C0DATA
GND SDA
M24C32-WMN6TP
TP401 TP402
I2C :
0xA0-0xAE
D5V D5V 7,8,10,12,14,15,17
VCC3V3_G9 VCC3V3_G9 3,14,16,17
VCC9A VCC9A 7,8,9,17
15
TP420 D5V
TP419
I2C1CLK R438 4.7K 1/10W
I2C1DATA R440 4.7K 1/10W
VCC3V3_G9
R435 R436 R437 R439 R427
4.7K 1/10W 1K 1/10W
1K 1/10W 1K 1/10W 1K 1/10W
R441
1K 1/10W
2
C4F4
22pF
VCC3V3_G9 VCC3V3_G9
R430
4.7K 1/10W
TAPSEL GPIO3
CN406
1/10W
EEPROM_WP 3
D5V
U408
UART0TX 11
T1IN
UART1TX 10
T2IN
RXD_IN 13
11 RXD_IN R1IN
RXD_OUT1 8
R2IN
C496 1
C1+
3
C1-
1uF
4
C2+
C495 5
C2-
1uF 2
V+
D5V 6
V-
C498
C497 1uF
1uF
R426
JTAG/EJTAG
1K 1/10W
CN411
1 2
3 4
R416 33 1/10W 5 6
7 8
9 10 VCC3V3_G9
PU1 11 12
PU2 13 14
NC
* Key Pin 12
JTAG_RSTN 15
VCC3V3_G9 VCC3V3_G9 VCC3V3_G9
R434 R433 R432 R431
4.7K 1/10W 4.7K 1/10W 4.7K 1/10W NC
GPIO2 GPIO1 GPIO0
R445 R466 R443 R467
NC NC NC 1K
"1110" - Boot from 8-bit NOR Flash
SIO I/F
39
C4J4 C4J3
+
FB410
0.1uF 10uF/16V RXD_IN FB411
14 TXD_OUT
TXD_OUT 11
T1OUT
7 TXD_OUT1
T2OUT
12 UART0RX
R1OUT
9 UART1RX
R2OUT
HIN232CBZ-T
D5V
U419
R4H3
1
A0
NC 2
A1
3
A2
RF_SEL R4H8 NC 4
I/O0
R961 NC 5
I/O1
R963 NC 6
I/O2
R965 NC 7
I/O3
8
VSS
NC
CHIP ID:42H
VCC9A
R4L8
10K
1/10W
R4L7
RF_SEL
Q403
4.7K 1/10W 2SC2412KR
Title
06-GPIO I/F
Size Document Number
Custom
Date: Wednesday , February 07, 2007
RCA L37WD23
CN107
300 OHM 1
300 OHM 2
3
C4K4 C4K5
10pF 10pF CONN
CN402
TXD_OUT1 1
RXD_OUT1 2
3
NC
D5V
C4J5
D5V
NC
16
VDD
15 I2C1DATA R4H4
SDA
14 I2C1CLK NC
SCL
13
INT
12 R962 NC
I/O7
11 R964 NC
I/O6
10 R966 NC
I/O5
9 R967 NC
I/O4
VCC9A
CN410
1/10W
1
2 TO RF SW
3
NC
Rev
E
T2300-F-X-X-1-070208
Sheet 6 of 20