Earphone Block; Usb Block - LG 42LE5400 Service Manual
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Also See for 42LE5400:
- Owner's manual (136 pages) ,
- Specifications (2 pages) ,
- Owner's manual (39 pages)
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EARPHONE BLOCK
EARPHONE AMP
C304
1uF
10V
INL-
HP/BT_LOUT_N
11:F2
C305
1uF
INL+
10V
HP/BT_LOUT_P
11:F2
C306
1uF
INR+
10V
HP/BT_ROUT_N
C307
11:F2
1uF
INR-
10V
HP/BT_ROUT_P
11:F2
EARPHONE JACK SIDE
HP_L_OUT
Q26
Q300
MMBT3904-(F)
OPT
HP_R_OUT
Q21
Q301
MMBT3904-(F)
OPT
WIRELESS I2C LEVEL SHIFTER
LEVEL SHIFTER
+3.3V_NORMAL
R324
10K
OPT
Q304
FDV301N
OPT
WIRELESS_SCL
SCL3_3.3V
SDA3_3.3V
WIRELESS_SDA
Q305
FDV301N
OPT
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_NORMAL
L302
10uH
C315
C317
10uF
0.1uF
16V
10V
L304
R308
BG2012B080TF
0
1/16W
C321
C308
Close to the IC
22000pF
1uF
50V
10V
+3.3V_NORMAL
R306
C318
100K
2.2uF
16
15
14
13
OPT
R309
OPT
10V
HPVDD
4.7K
R310
1
12
0
C
CPP
R311
2
11
1K
Q308
B
IC300
C319
2SC3052
TPA6132A2
2.2uF
PGND
10V
3
10
E
CPN
4
EAN60724701
9
5
6
7
8
L303
R307
BG2012B080TF
0
C316
1/16W
C320
2.2uF
22000pF
10V
50V
C
E
JK300
B
Q303
KJA-PH-0-0177
MMBT3904-(F)
B
GND
5
OPT
E
C
L
4
R314
120
DETECT
3
DEV
9:G3
SIDE_HP_DET
R
1
EAG61030001
C
E
B
Q302
MMBT3904-(F)
B
OPT
+3.5V_ST
E
C
Q306
ISA1530AC1
OPT
R315
C
150
OPT
Q307
B
SIDE_HP_MUTE Q23;81:I4
2SC3052
OPT
E
USB BLOCK
USB2
+3.3V_NORMAL
+5V_USB
C311
C313
HP_L_OUT
10uF
0.1uF
10V
USB_PWRON2
R321
2.7K
10:D4
USB_PWRFLT2
10:D4
10:D4
SIDE_HP_MUTE
HP_R_OUT
CHANGE USB_PWRFLT PULL-UP FROM 5V TO 3.3V
USB1 (DVR Ready)
+3.3V_NORMAL
+5V_USB
C312
C314
10uF
R322
0.1uF
10V
2.7K
USB_PWRON1
10:D4
USB_PWRFLT1
10:D4
USB_DM1
10:D4
USB_DP1
IC301
AP2191SG-13
L301
R320
GND
8 NC
1
4.7K
MLB-201209-0120P-N2
OPT
IN_1
7 OUT_2
2
IN_2
6 OUT_1
120-ohm
3
EN
5 FLG
4
C310
EAN60921001
100uF
16V
DEV
10:D4
0
R318
USB_DM2
USB_DP2
D303
D301
CDS3C05HDMI1
CDS3C05HDMI1
5.6V
5.6V
ESD_USB
ESD_USB
IC302
AP2191SG-13
R319
L300
4.7K
GND
8 NC
1
OPT
MLB-201209-0120P-N2
IN_1
7 OUT_2
2
IN_2
6 OUT_1
120-ohm
3
C309
EN
5 FLG
4
100uF
EAN60921001
16V
DEV
10:D4
0
R317
D300
D302
CDS3C05HDMI1
CDS3C05HDMI1
5.6V
5.6V
ESD_USB
ESD_USB
GP2_BCM_ATSC
USB/EAR-PHONE
USB
USB(DVR Ready)
09/10/xx
3
100
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