LG 42PN450D-ZA Service Manual page 17

<HDMI>
<HDMI1_SIDE>
+5V 5V_DET_HDMI_3
BODY_SHIELD MMBT3904(NXP)
R237
1K
C
20
Q202
19 R238
1.8K
E
18
R244
3.3K
17 R288 R289
R231
10K 10K
33
16
JP207
15 R246
33
JP208
14
13
12
11
CK+
10
D0-
9
D0_GND
8
D0+
7
D1-
6
D1_GND
5
D1+
4
D2-
3
D2_GND
2
D2+
1
JK201
HDMI1_SIDE
For CEC
R268
100
CEC_REMOTE
<FOR COMMERCIAL>
+3.3V_ST
NON_Commercial
P602
12507WS-04L
1
2
+3.3V_ST
3
<RS232C>
4
JP241
5
R278
R279
10K
10K
READY
R275
0
R283
READY
R274
0
R284
JK203
SPG09-DB-009
MAX3232CDR
Commercial
1
VCC
16
6 MAX3232
R276 100
GND
2
15
MAX3232
+5V_ST
R277
7
DOUT1
100
14
3
R228
8
10K RIN1
13
Commercial
4
TX
ROUT1
R229
9 C
12
100K
Commercial
Q204 B
5
MMBT3904(NXP)
DIN1
R233
10 Commercial 11
100K
E
Commercial
DIN2
10
ROUT2
9
P_JACK TO RS232C
R226
0
P_JACK TO RS232C
R227
0
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 © 2012 LG Electronics Inc. All rights reserved.
Only for training and service purposes
<HDMI2_REAR>
+5V 5V_DET_HDMI_1
R209 MMBT3904(NXP)
SHIELD
10K
R200
1K
B C
20
HPD3
R232
10K B
19 R201 Q200 R217
1.8K 10K
E
18 R204
3.3K
DDC_SDA_3 R207
17 R281 R282
33
10K 10K
DDC_SCL_3
16
JP201
15 R208
33
CEC_REMOTE JP202
14
CK-_HDMI3
13
12
CK+_HDMI3
11
CK+
10
D0-_HDMI3
D0-
9
D0_GND
8
D0+_HDMI3
D0+
7
D1-_HDMI3
D1-
6
D1_GND
5
D1+_HDMI3
D1+
4
D2-_HDMI3
D2-
3
D2_GND
2
D2+_HDMI3
D2+
1
JK200
HDMI2_REAR
CEC_REMOTE_S7
<PHONE JACK>
PM_TXD
22 +3.3V_ST
MAX3232
C229
PM_RXD
22 0.1uF
IC206
16V
C1+
MAX3232
1 MAX3232
JK206
C228
PEJ027-04
0.1uF
E_SPRING
V+ 16V PHONE JACK 3
2
C225 T_TERMINAL1
6A
C1- 0.1uF
3
16V
MAX3232
B_TERMINAL1
7A
C2+
4
MAX3232
R_SPRING
4
C226
0.1uF
C2-
16V T_SPRING
5 5
B_TERMINAL2
V- 7B
6
T_TERMINAL2
6B
DOUT2
7
RIN2
8
MAX3232
(1) NON-OS Normal : O (RS232 Debug)
C227
0.1uF
16V
(2) NON-OS Commercial : O (PC Audio)
(3) OS Normal : X
(4) OS Commercial : O (PC Audio)
<IN/OUT>
<COMPONENT>
JK208
PPJ234-02
[GN]E-LUG
R251
6A 75
[GN]O-SPRING
5A
[GN]CONTACT
4A
[BL]E-LUG-S
R252
75
7B
[BL]O-SPRING
5B
R202
[RD]E-LUG-S
10K
R253
HPD1 7C 75
[RD]O-SPRING_1
5C
[RD]CONTACT_1
4C
DDC_SDA_1
5D
DDC_SCL_1
[WH]O-SPRING
4E
[RD]CONTACT_2
CEC_REMOTE
5E
[RD]O-SPRING_2
CK-_HDMI1
6E
[RD]E-LUG
CK+_HDMI1
D0-_HDMI1
D0+_HDMI1
<AV (Growth & SCA)>
D1-_HDMI1
GROWTH
D1+_HDMI1
JK202
PPJ231-01
D2-_HDMI1
4
D2+_HDMI1
5
R203
0
7
GROWTH
8
R230
6
75
GROWTH
<RGB PC>
JK205
SPG09-DB-010
Commercial
6
1
11
7
Commercial
R220 2 12
10K
PC_R_IN
8
R218 R222
3 13
470K 12K
9
Commercial
R221 4 14
10K
PC_L_IN
10
R219 R223
5 15
470K 12K
16
SHILED
GND
<SIDE USB>
+3.3V
JK209
3AU04S-305-ZC-(LG)
COMP2_Y+ R259 C212
0.1uF
10K R266
AV2_DET 16V
1K
R265
10K
COMP2_DET
COMP2_Pb+
R267
1K
COMP2_Pr+
10mm
COMP2_L_IN
R256 10K
R254 R262
470K 12K
COMP2_R_IN
R257 10K
<ETHERNET (T2 UK)>
R255 R263
470K
12K
+2.5V
JK210
XRJV-01V-0-D12-080
1
1
2
2
3
3
4
4
5
ET_NET 5
AV_R_IN
6
6
AV_L_IN
7 C200
7 0.1uF D200 D204
16V 5.6V 5.6V
AV_DET ET_NET ET_NET ET_NET
R234 8
8
0
AV/SC1_CVBS_IN
GROWTH 9
9
+5V_ST
R297 R298
10K 10K
RED_GND
GND_2
R214
RED 75
GREEN_GND
DDC_DATA R215
GREEN 75
BLUE_GND
R205
33
H_SYNC
R216
+3.3V
BLUE 75
NC
R206
V_SYNC 33
R224
C202 C203
GND_1 10K R225
10pF 10pF
1K
SYNC_GND
50V 50V
DDC_CLOCK
DDC_GND
R212
10
R211
10
NON_Commercial
P603
12507WS-04L
1
2 RGB_DDC_SDA
3 RGB_DDC_SCL
4
5
SWITCH ADDED
+3.3V
+3.3V
+5V
IC204
BD82020FVJ
R264
10K
OUT_3 GND R270
8 1
10K
READY
OUT_2 IN_1
7 2
OUT_1 IN_2
6 3
C213 R258 R271
10uF 33 33
OC EN
5 4 USB1_CTL
10V
USB1_OCD
C201
0.1uF
SIDE_USB_DM 16V
SIDE_USB_DP
<SPDIF>
JK204
JST1223-001
GND
+5V
TP
VCC
C219
0.1uF R285
TN 16V 100
VINPUT
SPDIF_OUT
RP C220
10pF
FIX_POLE 50V
RN
D205 D206
5.6V 5.6V
ET_NET ET_NET
R273 R291
0 0
ET_NET ET_NET
R280 R290
0 0
ET_NET ET_NET
<WIRED IR>
JK207
PEJ027-04
E_SPRING
US_Commercial 3
DSUB_R+
T_TERMINAL1
6A
IR
RGB_DDC_SDA
DSUB_G+ B_TERMINAL1
7A
DSUB_HSYNC R_SPRING
4
R213
DSUB_B+ 0
NON_Commercial
T_SPRING
5
DSUB_VSYNC
B_TERMINAL2
7B
TX
DSUB_DET
R210
RGB_DDC_SCL T_TERMINAL2 10
6B
US_Commercial
PC_SER_DATA
PC_SER_CLK
2012-06-01
L13
JACK INTERFACE
2
7
LGE Internal Use Only