LG Electronics 28LN45 FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS , ETHERNET, RS232C(SIDE), 4 13, INTERFACE, DSUB RGB PC AUDIO(SIDE) USB(SIDE), Jack Shield (HDMI1, HDMI2, RGB)

USB DOWN STREAM
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.
INTERFACE
C400
0.1uF
VA425
20V
PC_L_IN
JK402
3AU04S-305-ZC-(LG)
1234
5
JP427
JP403
EPHY_RP
+3.3V_ST
DSUB_DET
L402
BLM15BD121SN1
DSUB_R+
C404
10uF
10V
OPT
+5V_Normal
USB_OCD
DSUB_B+
JP407
JP410
VA405
5.5V
OPT
USB_DM 1:AL8
R420
0
OPT
DSUB_VSYNC
2:E18 VA424
20V
C410
0.01uF
50V
LAN_JACK
JP404
JP408
EPHY_TP
VA406
5.5V
EPHY_TN
R426 0
R446
10K
C405
0.1uF
RGB_DDC_SCL
R445
15K
R419
47
JP428 USB_DP 1:AL7
R402
75
VA400
20V
VA417
20V
RGB_DDC_SDA
R411
0
LAN_JACK
L401
BLM15BD121SN1
R401
75
+3.3V_ST
VA401
20V
C421
47pF
50V
R442
470K
OPT
JP401
C419
47pF
50V
VA426
5.5V
OPT
JP_GND2JP_GND3JP_GND1 JP_GND4
R407
470K
R415
100PM_RXD
C407
0.33uF
16V
Hotel_Model(RS232C apply)
JP412
C409
0.1uF
16V
Hotel_Model(RS232C apply)
R414
100
VA419
20V
PM_TXD
JP414
JP413
IR_OUT
JK404
KJA-PH-1-0177
Hotel_Model(RS232C apply)
3 M3_DETECT 4 M4 5 M5_GND 1 M1 6 M6
VA411
20V
C402
0.33uF
16V
Hotel_Model(RS232C apply)
R412
0
NON_Hotel_Model(RS232C Bypass)
VA412
20V
VA410
20V
OPT
+3.3V_ST
C408
0.1uF
16V
Hotel_Model(RS232C apply)
+3.3V_Normal
C406
0.33uF
16V
Hotel_Model(RS232C apply)
P400
12507WS-04L
1
2
3
4
5
IC401
MAX3232CDR
Hotel_Model(RS232C apply)
3C1- 2V+ 4C2+
1C1+
6V- 5C2-
7DOUT2 8RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
VA408
20V
OPT
VA404
5.5V
OPT
R410
0
NON_Hotel_Model(RS232C Bypass)
R416
0
(OPT)IR_OUT
+3.3V_ST
R434
47K
R418 47K
MGJ63348202
M1-*1
JackShield(for CKD)
MGJ63348201
M1
JackShield(for NonCKD)
JP411
PC_AUDIO_DET
VA407
20V
OPT
R409
1K
R441
470K
OPT
+3.3V_Normal
PM_RXD
R403
0
OPT
JP405
R404
0
OPT
R405
0
OPT
PM_TXD
R406
0
OPT
R429 0
C403
18pF
50V
OPT
DSUB_HSYNC
2:E18
JK400
SPG09-DB-010
1RED 2GREEN 3BLUE 4GND_1 5DDC_GND
6RED_GND
7GREEN_GND
8BLUE_GND
9NC
10 SYNC_GND
11 GND_2
12 DDC_DATA
13 H_SYNC
14 V_SYNC
15 DDC_CLOCK
16SHILED
VA403
5.5V
R421
0
VA409
5.5V
OPT
VA415
20V
R400
75
R444
15K
IC400
AP2191DSG
3IN_2
2IN_1
4EN
1GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
R435
10K
C401
18pF
50V
OPT
C414
220pF
50V
D416
MMBD6100
A2
CA1
JP409
R431
0
OPT
PC_R_IN
EPHY_RN
USB_CTL
VA420
20V
Q400
MMBT3904(NXP)
E
B
C
VA418
20V
+5V_USB
C420
47pF
50V
R417
10K
JP402
JK403
XRJV-01V-0-D12-080
LAN_JACK_SUB(XMULTIPLE(MP))
1
2
3
4
5
6
7
8
9
9
R408
10K
DSUB_G+
JP429
JP400
C413
220pF
50V
L403
BLM15BD121SN1
R413
10K
R427 0
JK401
KJA-PH-1-0177
3 M3_DETECT
4 M4
5 M5_GND
1 M1
6 M6
R447
10K
VA402
5.5V
JP406
JK403-*1
RJ45VT-01SN002
LAN_JACK_MAIN
11
22
33
44
55
66
77
88
9
9
ZD400
5.6B
ZD401
5.6B
ETHERNET
120103
ESD diode addition
EAF61530301 2EA
111026
ESD diode deletion
EAH39491601 2EA
111117
LAN Jack Addition for T2
111026
LAN Jack deletion
111026
Can be deleted??
To Improve EMI
11.10.31
To Improve Ringing issue
LOW capacitance Part apply
11.10.27
DSUB RGB PC AUDIO(SIDE) USB(SIDE)
4 13
12.07.02
BY.Hwang
Jack Shield (HDMI1, HDMI2, RGB)
NC4_S7LRM
RS232C(SIDE)
12.08.10
47K->470K
2013.1.14
120918
JIG GND Point addition
121128
ESD improve
OPT->APPLY
121128
ESD improve
OPT->APPLY
121128
ESD improve
OPT->APPLY
121128
ESD improve
OPT->APPLY
121128
ESD improve
OPT->APPLY
121128
ESD improve
OPT->APPLY
121128
ESD improve
OPT->APPLY
121017
Change
EAX65303801
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Only for training and service purposes
LGE Internal Use Only