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LG 47SL90QD Service Manual page 30

Chassis : lj91l
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A
7
CONTROL IR & LED
P701
12507WS-12L
SCL
1
SDA
2
6
GND
D701
D702
3
KEY1
4
KEY2
5
5V_ST
6
GND
7
ZD701
ZD703
WARM_ST
8
IR
9
OPT
GND
ZD702
C702
10
100pF
5
3.3V_ST
11
POWER_ON
12
13
C701
0.1uF
GND
4
RS232_SWITCHING
3
R701
0
BCM_RX
9:G6
UCOM_RX
12:D4
2
1
THE
SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE
SYMBOL MARK OF THE SCHEMETIC.
B
C
UCOM_SCL_3.3V
12:F6
UCOM_SDA_3.3V
12:F6
OPT
OPT
C705
C707
1000pF
1000pF
50V
50V
KEY1
12:H3
L703
BG2012B080TF
KEY2
12:H3
L704
L705
BG2012B080TF
CB3216PA501E
+5V_ST
C704
C706
C708
+3.3V_ST
0.1uF
0.1uF
0.1uF
R712
0
C
R711
Q702
B
0
C710
LED_WARM_STBY
IR
2SC3052
0.1uF
OPT
L701
12:D4;A3
OPT
16V
E
BG2012B080TF
+3.3V_ST
+3.3V_ST
L702
CB3216PA501E
OPT
OPT
C709
0
0
0.1uF
R708
R714
C
16V
C703
Q701
B
1000pF
50V
2SC3052
R709
R713
4.7K
0
E
R702
0
RS232_BYPASS
IC702
MC14053BDR2G
0ISTL00024A
L706
MLB-201209-0120P-N2
Y1
VDD
1
16
C712
Y0
Y
A3
C711
2
15
47uF
RS232C_RxD
16V
0.1uF
16V
Z1
X
RS232_BYPASS
3
14
RS232C_TxD
A3
R703
Z
X1
0
4
13
BCM_TX
9:G6
+5.0V
Z0
X0
5
12
UCOM_TX
12:D4
R706
INH
A
4.7K
6
11
R_RS232_SWITCHING
VEE
B
7
10
R704
100K
VSS
C
8
9
DO.J.G
D
E
USB JACK & USB +5V Current Protection
RL_ON
LED_POWER_ON
Blue Tooth
+5V_ST
F
G
H
D3.3V
BCM Tolerance
R718
R721
IC701
USB_POWER_OUT_2
2.7K
2.7K
MIC2009YM6-TR
VOUT
VIN
6
1
ILIMIT
GND
5
2
FAULT/
ENABLE
4
3
R716
USB_CTL1
130
10:D5
R717
47
Make this trace minimum 12 mil
KJA-UB-4-0004
JK702
USB_DM2 10:D4
C714
100uF
USB_DP2 10:D4
D703
D704
CDS3C05GTA
CDS3C05GTA
5.6V
OPT
5.6V
OPT
D3.3V
L707
11
JP712
10
C713
10uF
9
16V
JP711
8
D705
CDS3C05GTA
5.6V
7
OPT
JP713
D706
6
CDS3C05GTA
5.6V
OPT
5
JP715
R720
0
4
3
JP716
R719
0
2
1
12507WR-10L
P702
CONTROL IR/BT/USB
I
J
+5V_ST
+5.0V
L709
USB_5VST
L710
USB_+5V
C716
0.1uF
16V
USB_OCD1 10:D4
USB_POWER_OUT_2
L708
BLM18PG121SN1D
C715
100uF
16V
Not enough space
R722
27
10:D4
USB_DM1
R723
27
USB_DP1
10:D4
BLUETOOTH_RESET
VREG_CTRL
BRAZIL VENUS
2009.03.23
14
15

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