RCA L37WD23, Service Manual

Page: 48 / 84

37’’ LCD TV RCA L37WD23
48
RELAY-SW
RGB_HSYNC
KEY6
C
4H
4
0.
1uF
FB401
600OHM
1 2
C
EMI
REV.E Hank
C917
0.1uF
R909
1K 1/10W
C913
+5VSB
KEY 6
RESET
R924
3.3K 1/10W
R981
3.9K 1/10W
R
4E9
10
K
1/
10W
+5VSB
FB933
600OHM
1 2
R921
330 1/10W
+3V3SB
RC5-IR
Q905
2SC2412KR
TXD_B
R925 3.3K 1/10W
R920 0 1/10W
RGB_VSYNC
NEC-IR
CH+
R4A3
1K 1/10W
VOL+
+5VSB
IRR 6
DPMS_HS
X1_P
CH-
KEY 3
F1
FUSE
C961
0.22uF
C
4J
1
0.
1uF
LED-A
KEY-IR
KEY 3
U916
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15
16
17
18
19
20
21
22
23
24
25
26
27
28
P2.0
P2.1
KBIO/CMP2/P0.0
P1.7
P1.6
RST/P1.5
VSS
XTAL1/P3.1
CLKOUT/XTAL2/P3.0
INT1/P1.4
SDA/INT0/P1.3
SCL/T0/P1.2
MOSI/P2.2
MISO/P2.3 P2.4/SS
P2.5/SPICLK
P1.1/RXD
P1.0/TXD
P0.7/T1/KBI7
P0.6/CMP1/KBI6
VDD
P0.5/CMPREF/KBI5
P0.4/CIN1A/KBI4
P0.3/CIN1B/KBI3
P0.2/CIN2A/KBI2
P0.1/CIN2B/KBI1
P2.6
P2.7
2SC2412
TXD_B
R908
3.3K 1/10W
+5VSB
R956 0 1/10W
R957 0 1/10W
+3V3SB
FB917 300 OHM
R
4F
4
10
K
1/
10W
B
D5V
+3V3SB
+3.3V
PWR_SW
KEY3
CN902
NC
1
2
3
4
5
MENU
R960 330 1/10W
Reset
Switch
KEY-IR
R918 330 1/10W
RXD_B
IRR
KEY2
R958 NC
X901
12.000MHz
1
2
PWR-ON
LED-2
KEY2
TXD_B
I2C1DATA 6,9,14
ISP
JTAG_RSTN 6
RXD_B
CN419
CONN
1
2
3
4
5
6
7
8
9
10
11
12
13
RELAY-SW 17
RESETN 4,6,8
R952 0 1/10W
5V
ISP
R917 100 1/10W
SEL
R
4F
1
10
K
1/
10W PDC_SCL
KEY 2
LED-2
Q903
2SC2412KR
KEY6
R982
3.9K 1/10W
ISP
VCC3_3 4,8,11,12,13,17
U417
74HC4066DQ
1
2
3
4
5
6
7 8
9
10
11
12
13
14
1Y
1Z
2Z
2Y
2E
3E
GND 3Y
3Z
4Z
4Y
4E
1E
Vcc
5V
+5VSB
PANEL-ON
LED-1
MISC & Connectors
E
RXD_B
KEY-IR
LED-A
U407
EM6353BX2SP3B-2.9+
1
2
3
GND
RESET(RESET)
VDD
C912
D5V
C
4J
2
0.
1uF
Q907
2SC2412KR
R
4F
0
10
K
1/
10W
RGB_HSYNC 11,12
VOL-
LED-B
RESETN
SW401
SW
2
1 3
4
5
VCC3_3
C942
0.1uF
C
4H
8
0.
1uF
RGB_VSYNC 11,12
CH+ 4
R4K0
0 1/10W
PWR_SW
R
4F
5
10
K
1/
10W
CH-
R959 NC
C
4J
0
0.
1uF
PDC_SDA
VCC3_3
NEC-IR
C
4H
9
0.
1uF
+5VSB
RC5-IR
I2C1CLK 6,9,14
RESETN
CH+
PWR-ON
PWR-ON
PDC_SCL
X2_P
DPMS_HS
U905
P87LPC764BD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
P0.0
P1.7
P1.6
RST/P1.5
VSS
X1/P2.1
X2/P2.0
INT1/P1.4
SDA/P1.3
SCL/P1.2
P1.1
P1.0/TXD
P0.7
P0.6
VDD
P0.5
P0.4
P0.3
P0.2
P0.1
C918
0.1uF
RESET
KEY3
C
4H
5
0.
1uF
R922
330 1/10W
R
4F
6
10
K
1/
10W
CH- 4
KEY -IR
R4A5 0 1/10W
SEL
R
4F
3
10
K
1/
10W
Reset
Circuit
D5V 6,7,8,10,12,14,17
X1_P
U910
AP1117E33LA
1
2 3
VS
S
VOUT VIN
X2_P
JTAG_RSTN
KEY 2
+5VSB
VOL+ 4
C
4H
6
0.
1uF
R939
10K 1/10W
R981,982
0R--3.9K
SYNC_VGA
REV.E Hank
PANEL-ON
PANEL-ON 13
VOL- 4
DPMS_VS
LED-B
+5VSB 7,11,13,14,17
R4J7
NC/0 1/16W
C494
0.01uF
E
15-Standby MCU and Reset
Custom
15 20 Wednesday , February 07, 2007
T2300-F-X-X-1-070208
Title
Size Document Number Rev
Date: Sheet of
+3V3SB
+5VSB
LED-1
C
4H
7
0.
1uF
DPMS_VS
R916 100 1/10W
PDC_SDA
Q906
2SC2412KR
Front Panel Control Connector
TV_VIDEO
R
4F
2
10
K
1/
10W
EMI
REV.E Hank
+5VSB
PWR_SW 3
KEY 6
C
4H
3
0.
1uF
+ C941
10uF/16V
MENU 4
TV_VIDEO 4
+5VSB
FB932
600OHM
1 2
R919 NC
+3V3SB 12