DOWNLOAD LG 42LV4400 LC420EUG-RDV2-7R1 Service Manual ↓ Size: 11.91 MB | Pages: 127 in PDF or view online for FREE

Model
42LV4400 LC420EUG-RDV2-7R1
Pages
127
Size
11.91 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lv4400-lc420eug-rdv2-7r1.pdf
Date
PREV: LG 42LV3710-TB / 42LV371Y-TB / 42LV3730-TD (CHASSIS:LB12B) Service Manual

LG 42LV4400 LC420EUG-RDV2-7R1 Service Manual ▷ View online

5
5
4
4
3
3
2
2
1
1
4
4
3
3
2
2
1
1
POWER_SW_ON_OFF
BL_ON_OFF
PWR_12V
PWM_TOUT1
PWM_TOUT2
PWM_TOUT3
PWM_TOUT1
PWM_TOUT1_LPB
PWM_TOUT2
PWM_TOUT2_LPB
PWM_TOUT3
PWM_TOUT3_LPB
PWM_TOUT2_LPB
PWM_TOUT3_LPB
PWM_TOUT1_LPB
BL_DIMMING
BL_DIMMING
GND
POWER_SW_ON_OFF
BL_ON_OFF
+12V
+5VSB
VCC
VCC
VCC
+12V_EN
8
BL_EN
8
EXT_BR28_P 9
DIM_OPWM1
8
TPWM_DIM
9
PWM_TOUT1
15
PWM_TOUT2
15
PWM_TOUT3
15
BL_DIMMING
15
GND
2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
INDEX POWER-IN
47LV4400(364705220150)
1
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
INDEX POWER-IN
47LV4400(364705220150)
1
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
INDEX POWER-IN
47LV4400(364705220150)
1
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MT5387RAV0.1
GPIO_0          => HDMI/VGA EEPROM WP
GPIO_1          => SYSTEM EEPROM WP
OPWM1        => DIMMING  CONTROL PWM/DIM/EXT_BR28_P
07.HDMI INPUT
08. MT5387
OPCTRL3         => LED LOGO
03. ANALOG POWER
01. INDEX POWER-IN
02. DIGITAL POWER
09. LVDS/MUTE
10. REAR RCA
14. KEYPAD/LOGO BL
11.VGA/LR
12.AUDIO/LINE OUT/HP
16. T-CON POWER
15. T-CON
13. AUDIO AMP - SPEAKER
ADIN2            => AUDIO AMP MUTE
ADIN1            => KEYPAD CONTROL
U1TX              => HDMI_CH_SELECT1
OPWM2        => JTAG PORT
M= METAL 1%
NC MEANS  "NOT CONNECTED ON PCB BOARD"
ALL RESISTORS 25 VOLT  IN .1uF  UNLESS NOTED.
ALL RESISTORS VALUES IN OHMS UNLESS NOTED.
ALL CAPACITOR  VALUES IN uF UNLESS NOTED.
ALL RESISTORS 1/16 WATT,5% UNLESS NOTED.
ALL CAPACITORS 50 VOLT & 105"C  UNLESS NOTED.
04.PERIPHERAL/FLASH/JTAG/UART
05.PLL/TUNER/USB
06. DDRII MEMORY
OPCTRL1       => HDMI2 power enable function
OPCTRL2       => OPC enable
GPIO DEFINITION
MT5387 (LQFP)+FHD (2 LAYERS)
Ver.1
OPWM0        => unidefined
2009/08
NOTE
DATE
Ver.0
History
INITIAL VERSION
Rev
ADIN3            => SENSOR_IN
ADIN0            => KEYPAD CONTROL
Ver.2
NOTE : 
ADIN5            => BL_EN
ADIN4            => +12V_EN
LVDS_CTRL1       => Lamp status
LVDS_CTRL2       => MEGADCR_EN
LVDS_PWR_ON      =>LVDS power enable
TP_VPLL       =>unidefined
B/L CONTROL
Low = >+12V OFF
High = > +12V ON
B/L CONTROL
Low = > BL OFF
High = > BL ON
DIMMING CONTROL
DIMMING CONTROL
NEAR LVDS CON
U1RX              => HDMI_CH_SELECT0
POWER IN
POWER_SW_ON_OFF
HIGH = > OPEN POWER +12V & +24V ON
LOW = > POWER +12V & +24V OFF
If the panel apply  5V power F1 = 5A/125V
If the panel apply 12V power F1 = 3A/125V
???A
10/08 Modify
MAX 1.09A
RMS 0.91A
03/29 Modify 0.1uF-->33pF
05/11 del
05/11 del
05/11 del
05/11 del
C53
0.1uF/25V
C53
0.1uF/25V
R10
NC/0
R10
NC/0
TG1
ESD Copper
TG1
ESD Copper
H6
SCREW_4
H6
SCREW_4
2
1
+ CE1
220uF/16V
+ CE1
220uF/16V
H4
SCREW_5.5
H4
SCREW_5.5
2
1
R78
NC
R78
NC
R18
NC
R18
NC
R74
NC
R74
NC
SH_H12
Small Shield
SH_H12
Small Shield
Shield
1
Shield
2
Shield
3
Shield
5
Shield
6
Shield
7
Shield
4
Shield
8
R3
100
R3
100
R34
470
R34
470
F1
125V/3A
F1
125V/3A
R21
NC/10K
R21
NC/10K
R17
NC
R17
NC
R14
NC/10K
R14
NC/10K
R19
470
R19
470
C7
33pF/50V
C7
33pF/50V
R24
NC/10K
R24
NC/10K
+ CE2
220uF/16V
+ CE2
220uF/16V
H1
SCREW_5.5
H1
SCREW_5.5
2
1
C52
0.1uF/16V
C52
0.1uF/16V
C9
33pF/50V
C9
33pF/50V
H9
SCREW_4
H9
SCREW_4
2
1
R13
100
R13
100
C37
1000pF/50V
C37
1000pF/50V
C380
NC/4.7uF/10V
0805C
C380
NC/4.7uF/10V
0805C
+
CE81
NC/100uF/16V
+
CE81
NC/100uF/16V
H10
SCREW_4
H10
SCREW_4
2
1
R116
NC
R116
NC
F2
125V/5A
F2
125V/5A
R99
470
R99
470
R23
100
R23
100
R6
0
R6
0
R11
NC/0
R11
NC/0
C8
33pF/50V
C8
33pF/50V
R101
NC
R101
NC
H3
SCREW_5.5
H3
SCREW_5.5
2
1
J4
2R00_1X14ML
J4
2R00_1X14ML
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C58
1000pF/50V
C58
1000pF/50V
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
EN10
EN10
3V3_EN
3V3_EN
DV33
GND
+5VSB
VCCK
+5VSB
DV33
+5VSB
+5VSB
VCCK
+3V3SB
+3V3SB
AV_3V3
OPWRSB
8
GND
1,3,4,5,6,7,8,9,10,11,12,13,14,15,16
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
DIGITAL POWER
47LV4400(364705220150)
2
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
DIGITAL POWER
47LV4400(364705220150)
2
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
DIGITAL POWER
47LV4400(364705220150)
2
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
1.25 x (1+180/110) = 3.3V
1.25 x (1+180/110) = 3.3V
0.8 x (1+1.21K/3.01K) = 1.122V
CORE POWER DV10
Low ESR 
<125 mOHM
High = > DV10 POWER ON
Low = > DV10 POWER OFF
0.8 x (1+3.16K/1K) = 3.328V
CORE POWER DV33
Low ESR 
<125 mOHM
EN: H level at least 2V
35mA
1.09A
08/23 Add EC Cap.
08/23 Modify EC Cap.
08/23 Modify EC Cap.
High = > AV33 ON
Low = > AV33 OFF
DEL  L22
DEL  L26
DEL  L48
RMS 525mA
MAX 840mA
MAX 256mA
MAX 1.1A
RMS 930mA
03/29 DEL C553,FB16,AV33
C73
0.1uF/16V
C73
0.1uF/16V
R319
NC/20K
R319
NC/20K
R167
1K
R167
1K
C45
10uF/10V
0805C
C45
10uF/10V
0805C
R318
1K
R318
1K
R37
3K01_F
R37
3K01_F
S
Q29
AP2309GN
SOT23_GSD
S
Q29
AP2309GN
SOT23_GSD
3
1
2
FB17
60ohm/3A
0603L
FB17
60ohm/3A
0603L
SOT223
ADJ
IN
OUT
ADJ/FIX
U4
AP1117EL-13
SOT223
ADJ
IN
OUT
ADJ/FIX
U4
AP1117EL-13
2
3
1
4
C377
NC/4.7uF/10V/0805
0805C
C377
NC/4.7uF/10V/0805
0805C
R326
10K
R326
10K
R43
1K_F
R43
1K_F
R360
NC/1K
1206R
R360
NC/1K
1206R
R65
20K
R65
20K
C566
10uF/10V
C566
10uF/10V
R166
10K
R166
10K
C76
1.0uF/25V
0603C
C76
1.0uF/25V
0603C
Q46
KN3904S
Q46
KN3904S
2
1
3
R32
180_F
R32
180_F
R56
10
R56
10
R42
3K16_F
R42
3K16_F
C82
0.1uF/16V
C82
0.1uF/16V
C47
0.1uF/16V
C47
0.1uF/16V
C79
0.1uF/25V
C79
0.1uF/25V
ZD23
BZT52C15S-7-F
ZD23
BZT52C15S-7-F
U9
AT1526P11U
U9
AT1526P11U
VCC
1
REF
2
GND
3
FB
4
EN
5
PGND
6
LX
7
VIN
8
E_PAD
9
+ CE10
100uF/16V
+ CE10
100uF/16V
C71
0.1uF/25V
C71
0.1uF/25V
Q47
KN3904S
Q47
KN3904S
2
1
3
+ CE11
100uF/16V
+ CE11
100uF/16V
+ CE16
470uF/16V
+ CE16
470uF/16V
L25
0 0805R
L25
0 0805R
C83
0.1uF/16V
C83
0.1uF/16V
L42
4.7uH_3.8A
L42
4.7uH_3.8A
C118
NC
C118
NC
C565
10uF/10V
C565
10uF/10V
R323
1K
R323
1K
C80
0.1uF/16V
C80
0.1uF/16V
C48
0.1uF/16V
C48
0.1uF/16V
C44
10uF/10V
0805C
C44
10uF/10V
0805C
L79
80ohm/6A
0805L
L79
80ohm/6A
0805L
C85
0.1uF/16V
C85
0.1uF/16V
C101
0.1uF/16V
C101
0.1uF/16V
R169
10K
R169
10K
C84
1uF/25V 0603C
C84
1uF/25V 0603C
R325
10K
R325
10K
R30
110_F
R30
110_F
C74
0.1uF/16V
C74
0.1uF/16V
Q15
KN3904S
Q15
KN3904S
2
1
3
R324
1K
R324
1K
C116
0.1uF/16V
C116
0.1uF/16V
R168
10K
R168
10K
U6
AT1526P11U
U6
AT1526P11U
VCC
1
REF
2
GND
3
FB
4
EN
5
PGND
6
LX
7
VIN
8
E_PAD
9
R36
1K21_F
R36
1K21_F
D24
LL4148WP
D24
LL4148WP
C77
1.0uF/25V
0603C
C77
1.0uF/25V
0603C
+ CE15
470uF/16V
+ CE15
470uF/16V
C81
1uF/25V
0603C
C81
1uF/25V
0603C
L43
4.7uH_3.8A
L43
4.7uH_3.8A
R64
20K
R64
20K
R55
10
R55
10
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
GND
AV125
DV33
DV33
DDRV
+5V_TUNER
+12V
GND
1,2,4,5,6,7,8,9,10,11,12,13,14,15,16
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
ANALOG POWER
47LV4400(364705220150)
3
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
ANALOG POWER
47LV4400(364705220150)
3
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
ANALOG POWER
47LV4400(364705220150)
3
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
1.25 x (1+0/100) = 1.25V
POWER +1.25V (ANALOG)
?mA
?mA
DDRII POWER
1.25 x (1+48.7/110) = 1803V
08/23 Add EC Cap.
08/23 Add EC Cap.
08/23 Modify EC Cap.
TUNER POWER +5V_TUNER
Add ZD24
DEL  L27
MAX 220mA
RMS 380mA
03/29 Add EC Cap.
05/11 Add EC Cap.
R31
110_F
R31
110_F
+
CE17
100uF/16V
+
CE17
100uF/16V
+ CE13
220uF/16V
+ CE13
220uF/16V
L80
80ohm/6A
L80
80ohm/6A
C141
0.1uF/16V
C141
0.1uF/16V
C31
0.1uF/16V
C31
0.1uF/16V
+
CE14
100uF/16V
+
CE14
100uF/16V
L18
0 0805R
L18
0 0805R
R33
48R7_F
R33
48R7_F
ZD24
NC
ZD24
NC
2
1
C173
0.1uF/16V
C173
0.1uF/16V
R41
0
R41
0
+
CE21
NC/47uF/16V
+
CE21
NC/47uF/16V
+ CE25
100uF/16V
+ CE25
100uF/16V
C72
0.1uF/16V
C72
0.1uF/16V
+
CE18
100uF/15V
+
CE18
100uF/15V
SOT223
ADJ
IN
OUT
ADJ/FIX
U8
AP1117EL-13
SOT223
ADJ
IN
OUT
ADJ/FIX
U8
AP1117EL-13
2
3
1
4
R39
100_F
R39
100_F
FB14
60ohm/3A
0603L
FB14
60ohm/3A
0603L
+
CE12
100uF/16V
+
CE12
100uF/16V
TO263
IN
OUT
ADJ
ADJ/FIX
U52 G1084_ADJ
TO263
IN
OUT
ADJ
ADJ/FIX
U52 G1084_ADJ
2
3
1
4
TO220
IN
OUT
GND
IGO
U10 MC7805CDTG
TO220
IN
OUT
GND
IGO
U10 MC7805CDTG
3
1
2
4
L81
80ohm/6A
L81
80ohm/6A
C34
1.0uF/25V
C34
1.0uF/25V
C35
0.1uF/16V
C35
0.1uF/16V
C70
0.1uF/16V
C70
0.1uF/16V
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
OSDA0
OSCL0
GPIO1
OXTALI
OXTALO
JTRST#
JTDO
JTAG_DBGACK
JTAG_DBGRQ
TVTREF#1
JTCK
OPWM2
OPCTRL2
U0RX
U0TX
FRESET#
POOE#
PDD1
POCE0#
PDD0
GND
+5VSB
DV33
DV33
DV33
DV33
DV33
DV33
ORESET#
8
OSDA0
8
OSCL0
8
GPIO1
8
OXTALI
8
OXTALO
8
JTDO
8
OPWM2
8,14
JTCK
8
OPCTRL2
8
JTRST#
8
U0TX
8,14
U0RX
8,14
PDD0
8
POCE0#
8
POOE#
8
PDD1
8
GND
1,2,3,5,6,7,8,9,10,11,12,13,14,15,16
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
PERIPHERAL/FLASH/JTAG/UART
47LV4400(364705220150)
4
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
PERIPHERAL/FLASH/JTAG/UART
47LV4400(364705220150)
4
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
PERIPHERAL/FLASH/JTAG/UART
47LV4400(364705220150)
4
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
I2C ADDRESS "A0"
TXC
Third-Tone
Crystal
SYSTEM RESET
MT5387 SYSTEM EEPROM
NEAR SCALAR
L : WP DISABLE
H : WP ENABLE
GPIO1 CONTROL STATUS
XTAL 54M
1
Strapping Mode
GPIO1
BOM NC
JTAG PORT
FOR CODE DOWNLOAD AND DEBUGGING
8MB
R95
4K7
R95
4K7
R787
4K7
R787
4K7
R112
NC/10K
R112
NC/10K
R109
10K
R109
10K
R104
33
R104
33
R100
1K
R100
1K
R69
10K
R69
10K
C181
0.1uF/16V
C181
0.1uF/16V
C114
1000pF/50V
C114
1000pF/50V
J2
NC/10x2 W/HOUSING
J2
NC/10x2 W/HOUSING
2
4
6
8
10
12
14
16
18
20
1
3
5
7
9
11
13
15
17
19
R62
4K7
R62
4K7
C111
12pF/50V
C111
12pF/50V
U14
AT24C16BN-SH-T
U14
AT24C16BN-SH-T
GND
4
VCC
8
A0
1
A1
2
A2
3
WP
7
SCL
6
SDA
5
R107
10K
R107
10K
R60
NC/10K
R60
NC/10K
L3
820nH/180mA
L3
820nH/180mA
1
2
C275
0.1uF/16V
C275
0.1uF/16V
J1
2R00_1X4M
J1
2R00_1X4M
1
2
3
4
R115
10K
R115
10K
R61
4K7
R61
4K7
R70
100
R70
100
U13
STL8110GCL438
U13
STL8110GCL438
GND
1
RESET
2
VCC
3
C179
0.1uF/16V
C179
0.1uF/16V
R108
10K
R108
10K
U18
MX25L6445EM2I-10G
U18
MX25L6445EM2I-10G
S_
1
Q
2
W_/VPP
3
VSS
4
D
5
C
6
HOLD_
7
VCC
8
R114
10K
R114
10K
C108
12pF/50V
C108
12pF/50V
C274
0.1uF/16V
C274
0.1uF/16V
R49
47
R49
47
R113
10K
R113
10K
R47
4K7
R47
4K7
Y1
54MHz
Y1
54MHz
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Page of 127
Display

Click on the first or last page to see other 42LV4400 LC420EUG-RDV2-7R1 service manuals if exist.

RANDOM: