RCA L37WD23 Service Manual page 48

37'' LCD TV
+3.3V
Front Panel Control Connector
CN419
13
12
11
10
9
8
7
6
5
4 R4J7
3 NC/0 1/16W FB917
2
1
R4K0
CONN
0 1/10W
+5VSB
U417
KEY 2 1 14
1Y Vcc
CH- 2 13
4 CH-
1Z 1E
CH+ 3 12
4 CH+ 2Z 4E
KEY 3 4 11
2Y 4Y
D5V
FB401 5V 5 10
2E 4Z
2 1 6 9
3E 3Z
600OHM 7 8
GND 3Y
74HC4066DQ
+5VSB
R908
3.3K 1/10W
R925 3.3K 1/10W
R924
PWR-ON Q906
2SC2412KR
3.3K 1/10W
B
E
2SC2412
D5V D5V 6,7,8,10,12,14,17
+5VSB +5VSB 7,11,13,14,17
+3V3SB +3V3SB 12
VCC3_3 VCC3_3 4,8,11,12,13,17
+5VSB
6,9,14 I2C1CLK
6,9,14 I2C1DATA
TV_VIDEO
TV_VIDEO 4 13 PANEL-ON
MENU
MENU 4
VOL-
VOL- 4
VOL+
VOL+ 4
KEY 2 CH-
KEY 3 CH+
KEY 6 PWR_SW
LED-A
LED-B
SEL SEL
300 OHM KEY -IR
+5VSB
F1
FUSE
C918
0.1uF
5V
KEY -IR R956
KEY 2 R959
KEY 6
PWR_SW
PWR_SW 3
IRR
IRR 6
KEY -IR
EMI
REV.E Hank
+5VSB
+5VSB
U910
FB932
AP1117E33LA
R909
1 2 3
1K 1/10W
600OHM
RELAY -SW + C941
RELAY -SW 17
Q907 10uF/16V
2SC2412KR
C
MISC & Connectors
11,12
11,12
U905
R916 100 1/10W PDC_SCL 10
SCL/P1.2 P0.0
R917 100 1/10W PDC_SDA 9
SDA/P1.3 P0.1
P0.2
C912 X1_P
P0.3
6
X1/P2.1 P0.4
X901
P0.5
12.000MHz 7
X2/P2.0 P0.6
C913 X2_P
P0.7
PWR-ON 2
P1.7 P1.0/TXD
PANEL-ON 3
P1.6 INT1/P1.4
RXD_B 11
P1.1 RST/P1.5
5
VSS VDD
P87LPC764BD
U916
1
P2.0
2
P2.1
KEY 3 3
KBIO/CMP2/P0.0 P0.1/CIN2B/KBI1
PWR-ON 4
P1.7 P0.2/CIN2A/KBI2
PANEL-ON 5
P1.6 P0.3/CIN1B/KBI3
ISP 6
RST/P1.5 P0.4/CIN1A/KBI4
7
VSS P0.5/CMPREF/KBI5
X1_P 8
XTAL1/P3.1 VDD
X2_P 9
CLKOUT/XTAL2/P3.0 P0.6/CMP1/KBI6
0 1/10W NEC-IR 10
INT1/P1.4 P0.7/T1/KBI7
NC PDC_SDA 11
SDA/INT0/P1.3 P1.0/TXD
PDC_SCL 12
SCL/T0/P1.2 P1.1/RXD
13
MOSI/P2.2 P2.5/SPICLK
14
MISO/P2.3 P2.4/SS
NC
EMI
REV.E Hank
FB933 +3V3SB
600OHM
2 1 2
VIN VOUT
0.22uF
C961
6 JTAG_RSTN
48
RGB_HSY NC
RGB_HSY NC
RGB_VSY NC
RGB_VSY NC
1 KEY 3
20 DPMS_HS R952 0 1/10W
19 RC5-IR
18 DPMS_VS R920 0 1/10W
17 KEY 6
16 LED-1
14 LED-2
13 RESET R919 NC RESETN
12 TXD_B
8 NEC-IR R981 R982
4 ISP
3.9K 1/10W 3.9K 1/10W
15 +5VSB
R981,982
C917
0R--3.9K
SYNC_VGA
0.1uF
REV.E Hank
+3V3SB
C942
0.1uF
28
P2.7
27
P2.6
26 DPMS_HS R957 0 1/10W KEY 2
25 RC5-IR R958 NC KEY -IR
24 DPMS_VS
23 KEY 6
22 LED-1
21
20 LED-2
19 RESET
18 TXD_B
17 RXD_B
16
15
Reset
Circuit
VCC3_3
U407
1 3
GND VDD
2
RESET(RESET)
EM6353BX2SP3B-2.9+
JTAG_RSTN R4A5 0 1/10W
2 4
Reset
5
Switch
SW401
1 3
SW
Title
Size Document Number
Custom
Date: Wednesday , February 07, 2007
RCA L37WD23
+5VSB
R918 330 1/10W
R921
Q905
2SC2412KR
330 1/10W
LED-A
+5VSB
R960 330 1/10W
R922
Q903
2SC2412KR
330 1/10W
LED-B
+3V3SB
CN902 R939
10K 1/10W
1
2 ISP
3 TXD_B
4 RXD_B
5
NC
R4A3
1K 1/10W
RESETN
RESETN 4,6,8
C494
0.01uF
15-Standby MCU and Reset
Rev
E
T2300-F-X-X-1-070208
Sheet 15 of 20