Norcent LT3290 Service Manual page 45

32'' LCD TV
Reset
Circuit
VCC3_3
VCC3_3
U407
1 3
GND VDD
2
RESET(RESET)
EM6353BX2SP3B-2.9+
SW401
2 4
Reset 5
Switch
1 3
NC
JTAG_RSTN R4A5 0 1/10W
6 JTAG_RSTN
+5VSB
+5VSB
R908
3.3K 1/10W
R925
R924 3.3K 1/10W
PWR-ON Q906
2SC2412KR
3.3K 1/10W
D5V D12V
FB914 FB910
300 OHM
NC /300 OHM
Q908
1 8
S1 D1
2 7
S1 D1
3 6
S1 D1
4 5
G1 D1
C900
R950 0.22uF
47K 1/10W AO4403
R900
R949
22K 1/10W NC/ 10K
Q901 PANEL-ON
2SC2412KR
R953 PANEL-ON1
PANEL-ON1 3
10K 1/10W
R955
47K 1/10W
Front Panel Control Connector
R4A3
1K 1/10W
CN419
RESETN 4,6,8
C494
0.01uF
CONN
R909
1KΩ 1/10W
RELAY -SW
RELAY -SW 18
Q907
2SC2412KR
6,9 I2C1CLK
6,9 I2C1DATA
CN902
+3V3SB
1
2 ISP
3 TXD_B
4 RXD_B
5
12V_PANEL
FB911 220 OHM NC/ 33G8009 5
2 1
FB912 2 1 220 OHM
C957
FB913 2 1 220 OHM 0.1uF
U910
+5VSB AP1117E33LA +3V3SB
3 2
VIN VOUT
+
C941
C961
10uF/16V
0.22uF
MISC & Connectors
+3.3V +5VSB
13 TV_VIDEO
12 MENU
11 VOL-
10 VOL+
9 KEY 2
8 KEY 3
7 KEY 6
6 LED-A
5 LED-B
4 R4J7 NC/0 1/16W SEL
3 FB917 300 OHM
2
1
R4K0
0 1/10W
11,12
11,12
R916
U905
100 1/10W
PDC_SCL 10
SCL/P1.2
PDC_SDA 9
SDA/P1.3
R917 X1_P
100 1/10W C912
18pF X901 6
X1/P2.1
12MHz
C913 7
X2/P2.0
18pF X2_P
PWR-ON 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
P87LPC764BD
R939
10K 1/10W
+3V3SB
1
2
KEY 3 3
PWR-ON 4
PANEL-ON 5
ISP 6
7
X1_P 8
X2_P 9
NEC-IR
KEY -IR R956 10
0 1/10W PDC_SDA 11
KEY 2 PDC_SCL 12
R959 13
NC 14
45
Norcent LT3290
D5V FB401 600OHM
2 1
TV_VIDEO 4
MENU 4
VOL- 4
VOL+ 4
CH-
U417
CH+
PWR_ SW KEY 2 1
1Y Vcc
CH- 2
4 CH-
1Z
SE L
SEL 3
KEY -IR CH+ 3
4 CH+
2Z
+5VSB
KEY 3 4
2Y
5
2E
5V 6
3E
7
GND
74HC4066DQ
RGB_VSY NC
RGB_VSY NC
RGB_HSY NC
RGB_HSY NC
1 KEY 3
P0.0
20 DPMS_HS R952
P0.1
19 RC5-IR 0 1/10W
P0.2
18 DPMS_VS R920 0 1/10W RGB_VSY NC
P0.3
17 KEY 6
P0.4
16 LED-1 R921 330 1/10W
P0.5
14 LED-2 RESET RESET R919 NC/ 0
P0.6
13
P0.7
12 TXD_B R922
8 NEC-IR LED-2 330 1/10W
4 ISP
15 R960 330 1/10W
VDD
+5VSB
R918 330 1/10W
C917 Q905
0.1uF
2SC2412KR
U905-1
28
P2.0 P2.7
27
P2.1 P2.6
26 DPMS_HS
KBIO/CMP2/P0.0 P0.1/CIN2B/KBI1
25 RC5-IR
P1.7 P0.2/CIN2A/KBI2
24 DPMS_VS
P1.6 P0.3/CIN1B/KBI3
23 KEY 6 +3V3SB
RST/P1.5 P0.4/CIN1A/KBI4
22 LED-1
VSS P0.5/CMPREF/KBI5
21
XTAL1/P3.1 VDD
20 LED-2
CLKOUT/XTAL2/P3.0 P0.6/CMP1/KBI6
19 RESET
INT1/P1.4 P0.7/T1/KBI7
18 TXD_B
SDA/INT0/P1.3 P1.0/TXD
17 RXD_B
SCL/T0/P1.2 P1.1/RXD
16
MOSI/P2.2 P2.5/SPICLK
15
MISO/P2.3 P2.4/SS
NC/P89LPC930FDH
Title
Page 15- Standby MCU and Reset
Size Document Number
B
T1961-F-X-X-1-070118
Date: Thursday , January 18, 2007
5V
+5VSB
C918
0.1uF
14 5V
13
1E
12
4E
11 KEY 6 KEY 6
4Y
10 PWR_SW PWR_SW
PWR_SW 3
4Z
9 IRR
IRR 6
3Z
8 KEY -IR
3Y
RESETN
Q903
2SC2412KR
LED-B
LED-A
R957
0 1/10W KEY 2
R958 NC KEY -IR
C942
0.1uF
Rev
F
Sheet 15 of 19