50PT350B-SG (CHASSIS:PB12K) - LG TV Service Manual (repair manual). Page 15

Read LG 50PT350B-SG (CHASSIS:PB12K) Service Manual online

U
S
B
 
D
O
W
N
 
S
T
R
E
A
M
Fiber Optic
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.
R228
10K
5V_HDMI_3
+5V
R208
10K
C245
0.1uF
16V
R227
10K
R249 1.8K
+5V_ST
D200
READY
DDC_SDA_1
CK-_HDMI3
R223
12K
D0+_HDMI2
D2-_HDMI2
D2+_HDMI3
D1+_HDMI2
R226 1.8K
R204
3.3K
+5V
R1201
10K
D212
READY
C240
27pF
50V
HDMI_ARC
R240
75
R274 0
READY
DSUB_R+
JK207
PPJ235-01
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]O-SPRING
3C
[RD]CONTACT
4C
[RD]O-SPRING
5C
[RD]E-LUG
D207
READY
R278
33
USB1_CTL
D218
BAT54_SUZHO
READY
30V
R212
10K
+5V
R6005
10K
1/16W
5%
D214
30V
READY
5V_HDMI_2
C239
1000pF
50V
R290
10K
D1-_HDMI2
C237
0.1uF
16V
10K
5V_HDMI_2
C222
0.1uF
16V
R221
0
READY
GND
CK+_HDMI1
Q200
2SC3875S(ALY)
E
B
C
JP207
SIDE_USB_DP
R200 1K
JK209
1
2
3
4
5
R1200
75
5V_DET_HDMI_1
R291
10K
D2+_HDMI1
PM_RXD
BSS83
Q203
READY
S
B
D
G
CK-_HDMI2
R267
10K
R205 33
JK202
EAG62611201
HDMI Side
14
13
5
D1_GND
20
BODY_SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
JP201
Q201
2SC3875S(ALY)
E
B
C
PC_R_IN
JP204
C235
0.1uF
16V
C236
10pF
50V
R277
10K
READY
D201
ENKMC2838-T112
A1
C
A2
R220
56K
READY
R296
100
PC_SER_DATA
J
P
2
0
2
JK200
EAG59023302
HDMI1
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
D0-_HDMI3
PC_SER_CLK
5V_DET_HDMI_2
D1+_HDMI1
D1-_HDMI3
CEC_REMOTE
R1205
12K
C209
10pF
50V
5V_HDMI_2
DDC_SCL_2
DDC_SCL_1
R6004
10K
1/16W
5%
DDC_SCL_3
D0-_HDMI2
R299
470K
R253
33
R1202
10K
5V_HDMI_3
R288
100
RGB_DDC_SCL
R213
470K
C243
0.1uF
16V
D202
ENKMC2838-T112
A1
C
A2
D219
READY
R1204
12K
SIDEAV_L_IN
DSUB_G+
D1+_HDMI3
R203
10K
R211
10
R216
10K
J
P
2
0
5
DSUB_DET
CEC_REMOTE
R201 1.8K
R293
100
READY
R231 33
PC_SER_CLK
JK201
EAG59023301
HDMI2
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
SIDEAV_R_IN
R210
10
R239
75
R217
10K
+3.3V_ST
R292
1K
READY
5V_HDMI_3
SPDIF_OUT
C208
0.1uF
16V
R289
100
PC_SER_DATA
R214
470K
5V_HDMI_1
10K
R222
12K
DDC_SDA_3
IC203
MAX3232CDR
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
R1203
1K
R248 1K
5V_DET_HDMI_3
S7_TXD
+5V
R295
0
CK-_HDMI1
CEC_REMOTE
C223
22uF
16V
READY
5V_HDMI_1
CK+_HDMI3
D2-_HDMI1
PM_TXD
10K
D0-_HDMI1
D0+_HDMI3
CEC_REMOTE
SIDEAV_CVBS_IN
HPD1
C205
1000pF
50V
R236
10K
5V_HDMI_1
+3.3V_ST
R294
10K
+5V
R230 33
USB1_OCD
SIDE_USB_DM
IC206
AP2191SG-13
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
DSUB_VSYNC
HPD3
DSUB_HSYNC
+3.3V
RGB_DDC_SDA
D2+_HDMI2
JK203
1
2
3
4
5
6
7
8
9
10
PC_L_IN
D203
ENKMC2838-T112
A1
C
A2
C206
1000pF
50V
+3.3V
R298
470K
R224
1K
JK205
SPG09-DB-010
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
HPD2
R6003
10K
1/16W
5%
DDC_SDA_2
CK+_HDMI2
R297
0
D217
30V
READY
D2-_HDMI3
C211
10pF
50V
SIDEAV_DET
C238
1000pF
50V
JK204
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
D0+_HDMI1
R219
10K
IC204
READY
3
GND
2
B
4
Y
1
A
5
VCC
S7_RXD
R263
33
C241
0.1uF
16V
DSUB_B+
R269
27K
READY
J
P
2
0
8
R238
75
JK208
PEJ027-04
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
+3.3V
+3.3V
R229
3.3K
R225 1K
CEC_REMOTE_S7
C244
0.1uF
16V
Q202
2SC3875S(ALY)
E
B
C
R258
10K
+3.3V_ST
D1-_HDMI1
+5V
C242
0.1uF
16V
R268
100
R252
3.3K
R254
33
R215
10K
R206 33
R273 0
READY
GP4 LM1
20110531
1
FLASH/EEPROM/GPIO
7
NAND
GATE
RGB PC
SIDE_HDMI
HDMI_1
RS232C
SPDIF
SIDE CVBS
Capacitors on VBUSA should be
placed as closd to connector as possible.
SIDE USB
For CEC
PC AUDIO
HDMI_2
10mm
$0.11
HDMI
Display
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