LG 42PT250B Service Manual page 15

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