LG 47LH90 Service Manual page 21

[CONTROL IR & LED]
P1200
12507WS-12L
SCL
1
ZENER
D1201
CDS3C05HDMI1
SDA
5.6V 5.6V
2
50V
ZENER
GND
1000pF
D1202
3
CDS3C05HDMI1 C1249
KEY1
4
KEY2
5
5V_ST
6
D1240
5.6B D1238
GND
7 5.6B
WARM_ST
8
L1204
IR BG2012B080TF
9
C1207
D1239
100pF
GND
10 50V
5.6B
3.3V_ST
11
PWR_ON
12
+3.3V_ST
13
10K
GND
R1228
C
B
Q1201
C1253
0.1uF 2SC3052
OPT E
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.
+3.3V_ST
R1229
0
SCL_SUB/AMP
001:AI5;006:D11
R1230
0
SDA_SUB/AMP
L1203
001:AI5;006:D12
50V R1200
BG2012B080TF
1000pF
C1248
L1202 R1201
BG2012B080TF
+5V_ST
L1201
CB3216PA501E
C1200
C1201
1000pF 0.1uF
50V 16V
LED_B
0
LU30
R1214
IR
ZENER C1208
001:AB22;004:AD4
5.6V 0.1uF
16V
CDS3C05HDMI1 +3.3V_ST
D1203
L1200
CB3216PA501E
C1205
C1202
1000pF
0.1uF
50V
16V
+3.3V_ST
R1260
10K R1225
LED_R/LED_MOVING
0
R1231
001:AR32
OPT 100
R1226
RL_ON
0
Except_LU30 001:AR32
R1227
R1213
4.7K
120K
OPT
DO JAE GEUN
USB
100
KEY1 001:AB23
100
KEY2 001:AB23
BLUETOOTH
BT_OPT
P12001
12507WR-08L
1
2
3
4
5
6
7
8
9
Pin to Pin Replacable with T-MIC2019YM6
L1219 IC1202
MIC2009YM6-TR
CB3216PA501E
VOUT
6
ILIMIT
5
FAULT/
USB_DM 4
C1209
001:AR34
330uF
25V
USB_DP
001:AR34
R1217
D1232
47
D1233
CDS3C05HDMI1
CDS3C05HDMI1
5.6V ZENER
5.6V
ZENER
+5V_EXT
S
BT_OPT
RTR030P02
G
Q12001
R12008
D 0
C
R12009
BT_OPT
4.7K
B
2SC3052
BT_OPT
BT_ON/OFF
Q12002
E
BT_OPT
R12005
0
BT_DM
BT_OPT
R12006
0
BT_DP
BT_LOUT_AMP
R12004
BT_ROUT
OPT
R12003
0
BT_OPT
Mstar(MINERVA)
ETC SUB BOARD
I/F
+3.3V
+5V_EXT
R1219
4.7K
OPT
VIN
1
GND
2 C1244
USB_CTL C1245
0.1uF
ENABLE
3 10uF
10V
USB_OCD
08.11.19
14 15