LG 24LN451B, Руководство по обслуживанию

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U
S
B
D
O
W
N
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T
R
E
A
M
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
R444
15K
DSUB (NON 28INCH MODEL)
JP402
R446
10K
DSUB (NON 28INCH MODEL)
R441
470K
DSUB (NON 28INCH MODEL)
VA419
20V
DSUB (NON 28INCH MODEL)
JP403
JP411
JP_GND2
R409
1K
DSUB (NON 28INCH MODEL)
JP400
R419
47
JP427
DSUB_VSYNC 2:E18
R413
10K
DSUB (NON 28INCH MODEL)
D416
MMBD6100
DSUB (NON 28INCH MODEL)
A2
C
A1
VA402
5.5V
DSUB (NON 28INCH MODEL)
JP_GND4
R434
47K
DSUB (NON 28INCH MODEL)
JP409
+3.3V_ST
R435
10K
DSUB (NON 28INCH MODEL)
R402
75
DSUB (NON 28INCH MODEL)
VA415
20V
DSUB (NON 28INCH MODEL)
R407
470K
DSUB (NON 28INCH MODEL)
JP_GND1
JP404
C400
0.1uF
JP407
USB_OCD
R447
10K
DSUB (NON 28INCH MODEL)
Q400
MMBT3904(NXP)
DSUB (NON 28INCH MODEL)
E
B
C
MGJ63348201
M1
JackShield(for NonCKD)
JP406
JP401
R400
75
DSUB (NON 28INCH MODEL)
JK402
3AU04S-305-ZC-(LG)
1
2
3
4
5
PC_L_IN
R442
470K
DSUB (NON 28INCH MODEL)
VA407
20V
DSUB (NON 28INCH MODEL)
R445
15K
DSUB (NON 28INCH MODEL)
USB_CTL
VA420
20V
DSUB (NON 28INCH MODEL)
DSUB_DET
JP410
+3.3V_Normal
VA400
20V
DSUB (NON 28INCH MODEL)
R417
10K
JK401
KJA-PH-1-0177
DSUB (NON 28INCH MODEL)
3 M3_DETECT
4 M4
5 M5_GND
1 M1
6 M6
MGJ63348202
M1-*1
JackShield(for CKD)
JK400
SPG09-DB-010
DSUB (NON 28INCH MODEL)
1
R
E
D
2
G
R
E
E
N
3
B
L
U
E
4
G
N
D
_
1
5
D
D
C
_
G
N
D
6
R
E
D
_
G
N
D
7
G
R
E
E
N
_
G
N
D
8
B
L
U
E
_
G
N
D
9
N
C
1
0
S
Y
N
C
_
G
N
D
1
1
G
N
D
_
2
1
2
D
D
C
_
D
A
T
A
1
3
H
_
S
Y
N
C
1
4
V
_
S
Y
N
C
1
5
D
D
C
_
C
L
O
C
K
1
6
S
H
I
L
E
D
+5V_Normal
C414
220pF
50V
DSUB (NON 28INCH MODEL)
JP429
RGB_DDC_SCL
JP428
IC400
AP2191DSG
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
PC_AUDIO_DET
VA425
20V
C413
220pF
50V
DSUB (NON 28INCH MODEL)
DSUB_HSYNC 2:E18
PC_R_IN
USB_DM
1:AL8
+5V_Normal
VA403
5.5V
DSUB (NON 28INCH MODEL)
RGB_DDC_SDA
R401
75
DSUB (NON 28INCH MODEL)
VA417
20V
DSUB (NON 28INCH MODEL)
VA401
20V
DSUB (NON 28INCH MODEL)
R418 47K
DSUB (NON 28INCH MODEL)
R408
10K
DSUB (NON 28INCH MODEL)
JP_GND3
VA406
5.5V
DSUB (NON 28INCH MODEL)
USB_DP 1:AL7
JP408
C405
0.1uF
VA418
20V
DSUB (NON 28INCH MODEL)
VA424
20V
JP405 R489 0
DSUB (NON 28INCH MODEL)
R488
0
DSUB (NON 28INCH MODEL)
R490
0
DSUB (NON 28INCH MODEL)
RGB_DDC_SDA
R412
0
(NC)MSTAR DEBUG_28" ONLY
P400
12507WS-04L
1
2
3
4
5
+5V3.3V_ST
PM_TXD
R403
0
(NC)MSTAR DEBUG_28" ONLY
R411
100
PM_RXD
RGB_DDC_SCL
R410
100
R406
10K
(NC)MSTAR DEBUG_28" ONLY
R405
10K
(NC)MSTAR DEBUG_28" ONLY
R414
0
R404
0
(NC)MSTAR DEBUG_28" ONLY
JP430
JP431
4 12
To Improve EMI
111026
ESD diode deletion
EAH39491601 2EA
USB(SIDE)
120103
ESD diode addition
EAF61530301 2EA
PC AUDIO(SIDE)
DSUB RGB
11.10.27
Jack Shield (HDMI1, HDMI2, RGB)
To Improve Ringing issue
LOW capacitance Part apply
11.10.31
NC4_S7LRM
12.08.10
47K->470K
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
EAX65410201
2013.05.25
DEBUG FOR MSTAR
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Only for training and service purposes LGE Internal Use Only