LG 50PT350 Service Manual page 17

5V_HDMI_2
5V_DET_HDMI_2
HDMI_1
C
R212
Q200 B 10K
SHIELD
HPD2
2SC3052
R200 1K
20
E
19
R201 1.8K
18 R204
3.3K
17
R205 33
DDC_SDA_2
16
R206 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+
D0+_HDMI2
7
D1-
6 D1-_HDMI2
D1_GND
5
D1+
4 D1+_HDMI2
D2-
3 D2-_HDMI2
D2_GND
2
D2+
1 D2+_HDMI2
D200
READY
JK200
5V_HDMI_2 +5V
HDMI1
EAG59023302
ENKMC2838-T112
D205
HDMI1
IC200
EDID_WP
AT24C02BN-SH-T
R207
10K
A0 VCC
1 8
$0.055
A1 WP
R208 R209
2 7
10K 10K
JP200
A2 SCL
3 6
DDC_SCL_2
R203 22
GND SDA
4 5
DDC_SDA_2
R202 22
+3.3V
RGB PC
JK205
R217
10K
SPG09-DB-010
D206
30V
RED_GND READY
6
GND_2
1
11
RED
DSUB_R+>
GREEN_GND
7
DDC_DATA
2 12
GREEN
DSUB_G+>
BLUE_GND
8 R218
H_SYNC 33
3 13
BLUE
DSUB_B+>
NC
9 R219
33
V_SYNC
4 14
GND_1
SYNC_GND
10
DDC_CLOCK
5 15
DDC_GND
C209
10pF
50V
16
SHILED
GND R211
10
C204
C207
D204
220pF 220pF
30V
50V 50V
READY READY
READY
R210
10
C203
C208
220pF
D201 220pF
50V
50V
30V READY
READY
READY
PC AUDIO
JK208
PEJ027-01
E_SPRING
3
T_TERMINAL1
6A
R215
10K
B_TERMINAL1
7A
R_SPRING D202
4 C205
30V R213
1000pF R222
READY 470K 12K
50V
T_SPRING
5
R216
B_TERMINAL2 10K
7B
C206
T_TERMINAL2 D203 R214
6B R223
30V 1000pF
470K 12K
50V
READY
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 © 2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes
5V_HDMI_3 5V_DET_HDMI_3
HDMI_2
SIDE_HDMI
C
SHIELD R236
BODY_SHIELD
Q201 B 10K
R225 1K
HPD3
2SC3052
20
E
19
R226 1.8K
18
R229
17 3.3K
R230 33
DDC_SDA_3
16
R231 33
DDC_SCL_3
15
14
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
D207
READY
JK201 JK202
HDMI2
HDMI Side
5V_HDMI_3
+5V
EAG59023301
EAG62611201
ENKMC2838-T112
D208
HDMI2
IC201
AT24C02BN-SH-T AT24C02BN-SH-T
EDID_WP
R232
10K
A0 VCC A0
1 8
$0.055 R233 R234
A1 WP A1
2 7
10K 10K
JP203
A2 SCL A2
3 6
DDC_SCL_3
R228 22
GND SDA GND
4 5
DDC_SDA_3
R227 22
Close to Jack
R224
1K
DSUB_DET
R241
0
C210
DSUB_R+>
0.1uF
C216
16V R238
R242 10pF
75
READY 0 50V
READY
D210
30V
RGB_DDC_SDA READY
R243
0
DSUB_B+>
DSUB_HSYNC
C217
R239
R244 10pF
75
0 50V
READY
DSUB_VSYNC
D211
30V
READY
RGB_DDC_SCL
R245
C211 0
10pF DSUB_G+>
C218
50V
R240
10pF
R246
75
0 50V
READY
D209
30V
READY
PC_SER_DATA
PC_SER_CLK
RGB EDID +5V_ST
IC205
AT24C02BN-SH-T
R235
PC_R_IN
1 8 10K
R237 R247
10K
10K
2 7
EDID_WP
3 6
PC_L_IN
4 5
C215
C214
10pF 10pF
50V
50V
5V_HDMI_4 5V_DET_HDMI_4
For CEC
C
R258
Q202 B 10K
HPD4
R248 1K 2SC3052
20
E
19
R249 1.8K
18
R252
3.3K
17
R253 33
DDC_SDA_4
16
R254 33
DDC_SCL_4
15
14
CEC_REMOTE CEC_REMOTE
13
12 CK-_HDMI4
11
CK+
10
CK+_HDMI4
D0-
9
D0-_HDMI4
D0_GND
8
D0+
7
D0+_HDMI4
D1-
6
D1-_HDMI4
D1_GND
5
D1+
4
D1+_HDMI4
D2-
3
D2-_HDMI4
D2_GND
2
D2+
1
D2+_HDMI4
D212
READY
5V_HDMI_4 +5V
ENKMC2838-T112
D213
HDMI Side
IC202
EDID_WP
R255
10K
VCC
1 8
$0.055
WP
R256 R257
2 7
10K 10K
JP206
SCL
3 6
DDC_SCL_4
R250 22
SDA
4 5
DDC_SDA_4
R251 22
COMPONENT2
JK210
PPJ234-02
[GN]E-LUG
DSUB_R+
6A
[GN]O-SPRING
COMP2_Y+>
5A
DSUB_R-
[GN]CONTACT
4A
[BL]E-LUG-S
7B
[BL]O-SPRING
COMP2_Pb+>
DSUB_B+ 5B
[RD]E-LUG-S
7C
DSUB_B-
[RD]O-SPRING_1
COMP2_Pr+>
5C
[RD]CONTACT_1
4C
[WH]O-SPRING
5D
R259
DSUB_G+
D215
[RD]CONTACT_2 470K
30V
4E READY
[RD]O-SPRING_2
DSUB_G-
5E
D216
R260
[RD]E-LUG 30V 470K
READY
6E
SIDE USB
Capacitors on VBUSA should be
placed as closd to connector as possible.
JK209
3AU04S-305-ZC-(LG)
USB1_OCD
C222 C223
0.1uF 100uF
16V 16V
C219
0.1uF
16V D217
D214
30V
30V
READY
READY
RGB_DDC_SCL 10mm
RGB_DDC_SDA
RS232C
HDMI
+3.3V_ST
JK203
SPG09-DB-009
1
R220
56K R269
6
27K
READY 2
R221
7
D218
0 READY
30V 3
READY
R268
0
8
CEC_REMOTE_S7
S B D 4
D219
9
Q203
READY
BSS83 5
10
G
READY
SPDIF
JK204
JST1223-001
FIX_POLE
Close to Jack
R279
COMP2_Pr+> R282 COMP2_Pr+
75 0
C228
10pF
50V
+3.3V
READY
D223
30V
READY COMP2_Pr-
R264
10K
R271
COMP2_DET
1K R283
0
READY
R284
COMP2_Y+> R280 COMP2_Y+
D220
75 0
30V
R270
10K C229
AV/COMP2_DET 10pF
D224
50V
30V READY
READY R272
READY COMP2_Y-
D221 1K
30V
R285
0
R281 R286 COMP2_Pb+
COMP2_Pb+>
75
0
COMP2_L_IN C230
R261 10K
10pF
D225 50V
C224
R265 READY
30V
1000pF 12K
READY COMP2_Pb-
50V
R262 10K
COMP2_R_IN
R287
0
C225
R266
1000pF
12K
50V
+3.3V
SWITCH ADDED
+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
HDMI/RGB/RS232C/USB
COMP2/Side CVBS/SPDIF
S7_TXD
S7_RXD
R295 0
PM_TXD
+3.3V_ST
+3.3V_ST
C245
PM_RXD
0.1uF
R297 0 IC203
16V
R290
R291 MAX3232CDR
10K
10K
R1434 VCC C1+
16 1
100 R1206
232C_NO6 C244
10K
0.1uF
R288 100
READY
GND V+ 16V
15 2
D228
C241
R289
30V
DOUT1 C1- 0.1uF
READY 100
14 3 16V
D229 RIN1 C2+
C232
30V 13 4
220pF
READY
C242
50V
0.1uF
READY
ROUT1 C2-
16V
12 5
C233
220pF
50V
DIN1 V-
READY
11 6 R1436
232C_NO4
R1435
100
100
UART_TXD_3D
232C_NO4
DIN2 DOUT2
R273 0 NON_RGB C243
10 7
0.1uF
PC_SER_DATA
16V
R274 0 NON_RGB
UART_RXD_3D
R1437
PC_SER_CLK 232C_NO6
ROUT2 RIN2
100
9 8
D226 D227
30V 30V
READY
+5V +5V
R292
IC204
1K
NL17SZ00DFT2G
C235
READY
READY
0.1uF
16V
VCC A
SPDIF_OUT
5 1
NAND
GND B
2
GATE
Y GND
4 3
R293
VCC
C234 100
C236
READY
0.1uF 10pF
16V 50V
READY
VINPUT
R296
100
SIDE CVBS
+3.3V
R294
10K
R1203
1K
JK207 SIDEAV_DET
C237
D230
PPJ235-01
0.1uF
30V
16V
READY
5A
[YL]E-LUG
SIDEAV_CVBS_IN
4A
[YL]O-SPRING R1200 C240
D231
30V 75 27pF
READY 50V
3A
[YL]CONTACT
4B
[WH]O-SPRING R1201
10K
SIDEAV_L_IN
3C
[RD]CONTACT
D232 R298 C239
R1204
30V 470K 1000pF
12K
4C READY 50V
[RD]O-SPRING
R1202
5C
[RD]E-LUG 10K
SIDEAV_R_IN
C238
R299 R1205
D233
470K 1000pF 12K
30V
50V
READY
2010-08-31
GP2R_S7R
2
LGE Internal Use Only