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

5
5
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4
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2
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1
D
D
C
C
B
B
A
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MODEL
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PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
MODIFY HISTORY
47LV4400(364705220150)
17
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:
MODIFY HISTORY
47LV4400(364705220150)
17
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:
MODIFY HISTORY
47LV4400(364705220150)
17
17
017122714132.BRD
2.0
2.0
364213320150_PCN0000627.DSN
017122714132
Monday, August 29, 2011
42LV4400(364213320150)
PCN0000627 / PCN0000637
DATE
2010/10/12
History
Randy update :
1.Page1 :move CE2 behine F2 
5.Page8 :FB13 from 47 ohm change to 150 ohm
8.Page16 :reverse panel setting modify TR115 NC-->0
、TR119 0-->NC、TR116 0-->NC、TR120 NC-->0
2.Page7 :Simplify HDMI power circuit DEL D54
、D57、C208、C191、C190
3.Page7 :simplify HPD circuit DEL R393
、R344、Q49、R379、R341、Q48、R382、R308、Q39
4.Page12 :add gpio control line out mute function(add R329
、D28)
6.Page9 :D22  NC-->LL4148WP (speed up MOS turn off time)
7.Page9 :TR10 18K-->NC
9.Page10 :SPDIF power from HDMI_5V change to AV33
10.Page11 :R210 pull high power change to VGA_PLUGPWR
2010/10/15
Randy update :
1.Page16 :supply enough wheeling current to avoid TPS65168 to go into short curcit protection.
(ADD TR150
、TD1)
2.Page7 :change other I2C bus avoid scramble with EEPROM(24C16)
。ADD R341、R344
3.Page14 :change J14 footprint
4.Page14 :KEY PAD path and voltage modify,R365,R370(24K ohm ->0 ohm); R396,R395(47K ohm ->1.6K 1% ohm)
2010/10/20
Randy update :
1.Page14 :modify LED backlight PWR circuit(Add R360
、ZD23、C71)
2010/10/26
Brandon update :
1. CE1, CE2, CE10, CE11, CE12, CE13, CE14, CE15, CE16, CE17, CE18, CE20, CE23, CE25, CE31, CE77, CE124, 
   CE129, CE130, CE131, CE132 change SMD type to DIP type.(Page 1, 2, 3, 5, 13)
2.Page14 :Modify power indicator power LED_PWR --> +5V_TUNER, delete R360, ZD23, C71
3.Page 1 :Add R11
Brandon update :
2.Page1&15: Modify PWM_DIM net name
2010/10/30
Brandon update :
1.Page14: Modify key pad circuit; change J3&J9 90'-->180'
2.Page1:  Delete H11
3.Page12: Modify line out driver circuit
2010/11/1
1.Page7: Modify HDMI power circuit add D54
、D57、C208、C191、C190
2010/11/2
Brandon update :
1.Page12: Modify line out driver power(Add L82, C567, C569, CE135, R837, CE133, C570, ZD8, R874, CE134, 
C568)
2010/11/3
Randy update :
1.Page16 : TR150 change to 620ohm, add TR151(620ohm),TR102 change to 2Kohm,TR99
、TR100 change to 30ohm
TR120 change to 330ohm, TQ1
、TQ3 change parts
2.Page12: CE132 change to C556, CE134 change to C571
3.Page13: CE131 change to C555
2010/11/5
Randy update :
1.Page13: Mute circuit add D29
2.Page14: Modify R358 placement
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
SCL
SDA
INT
SCL
SCL
SDA
SDA
SCL1
SDA1
SDA
SCL
SCL
INT_1
INT
INT_1
BLUE_LED
RED_LED
IR_Power
IR
SDA1
RED_LED
BLUE_LED
SCL1
+5V0
+5V0
+5V0
+3V0
+5V0
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
IR/Light/ Sensor Board
(3632-0152-0189)
1
1
PCN0000398
017116710921.BRD
1.0
1.0
363201520189_PCN0000398.DSN
0171-1671-0921
Monday, August 29, 2011
LV4400 series
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
IR/Light/ Sensor Board
(3632-0152-0189)
1
1
PCN0000398
017116710921.BRD
1.0
1.0
363201520189_PCN0000398.DSN
0171-1671-0921
Monday, August 29, 2011
LV4400 series
MODEL
Sheet
REV:
of
CIRCUITY
PCB REV:
PCB FILE :
PCB P/ N:
ECN NO:
TECHNOLOGY
APPROVED BY:
CHECKED BY:
SCH FILE :
DATE:
DESIGN BY:
IR/Light/ Sensor Board
(3632-0152-0189)
1
1
PCN0000398
017116710921.BRD
1.0
1.0
363201520189_PCN0000398.DSN
0171-1671-0921
Monday, August 29, 2011
LV4400 series
0805/Y5V
0603
UR2 TSL2561FN
UR3 CM3217
ALS select
RR9
RR10
RR11
RR12
100 ohm
NC
100 ohm
100 ohm
100 ohm
NC
NC
NC
CO-LAYOUT
change
Package to
0805
20110503
for factory ESD
20110512
RR3
1K,1%
RR3
1K,1%
J1
1R25_1X8ML
J1
1R25_1X8ML
1
2
3
4
5
6
7
8
UR2
TSL2561FN
UR2
TSL2561FN
VDD
1
ADR
2
GND
3
SDA
6
INT
5
SCL
4
RR7
10K
RR7
10K
RR10
100
RR10
100
RR5
0
RR5
0
W
R
LED1
MB04-1311QRQBC
W
R
LED1
MB04-1311QRQBC
1
3
2
4
CR2
22pF/50V
CR2
22pF/50V
RR1
47
RR1
47
UR1
FM-8038TM2-5DN
UR1
FM-8038TM2-5DN
VCC
3
VO
1
GND
2
CR6
NC/22pF/50V
CR6
NC/22pF/50V
RR2
470,1%
RR2
470,1%
RR13
100
RR13
100
CR1
10uF/16V
CR1
10uF/16V
RR9
100
RR9
100
RR4
NC/1K
RR4
NC/1K
RR8
10K
RR8
10K
LR1
80ohm
LR1
80ohm
CR5
1.0uF/25V
CR5
1.0uF/25V
UR3
NC/CM3217
UR3
NC/CM3217
GND
1
SDA
2
SCL
3
VDD
4
RR12
NC/100
RR12
NC/100
CR3
22pF/50V
CR3
22pF/50V
RR6
10K
RR6
10K
CR4
0.1uF/16V
CR4
0.1uF/16V
MR1
SCREW
MR1
SCREW
1
3
5
7
6
4
2
8
RR11
NC/100
RR11
NC/100
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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