DOWNLOAD LG 19LV2500-UG (CHASSIS:LA01R) Service Manual ↓ Size: 7.76 MB | Pages: 46 in PDF or view online for FREE

Model
19LV2500-UG (CHASSIS:LA01R)
Pages
46
Size
7.76 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
19lv2500-ug-chassis-la01r.pdf
Date
PREV: LG 19LV2500-UA (CHASSIS:LA01T) Service Manual

LG 19LV2500-UG (CHASSIS:LA01R) Service Manual ▷ View online

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.
R1614
1K
D1611
5.6V
OPT
SC1_CVBS_IN
SC1_G+/COMP1_Y+
R4223 0
COMPONENT1
C1625
0.1uF
50V
EU_OPT
D1612
30V
R1662
470K
OPT
D1626
5.6V
REAR_AV
+3.3V_Normal
R1667
10K
EU_OPT
R1625
470K
R1685
10K
REAR_AV
C1642
0.1uF
50V
EU_OPT
IC1601-*1
SN324
EU_OPT_AUK
3
NON_INV_IN1
2
INV_IN1
4
VCC
1
OUT1
6
INV_IN2
5
NON_INV_IN2
7
OUT2
8
OUT3
9
INV_IN3
10
NON_INV_IN3
11
GND
12
NON_INV_IN4
13
INV_IN4
14
OUT4
R1641
47K
EU_OPT
C1607
0.1uF
16V
C1616
1000pF
50V
OPT
D1624
5.6V
OPT
Q1601
ISA1530AC1
EU_OPT
E
B
C
2SC3052
Q1607
EU_OPT
JK1604
PPJ233-01
REAR_AV
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
D1607
5.6V
NON_EU
R1620
75
R1666
1K
REAR_AV
DTV/MNT_L_OUT
R1660
10K
REAR_AV
R1652
10K
EU_OPT
L1609
120-ohm
REAR_AV
C1646
0.1uF
16V
REAR_AV
R1618
10K
R1609
75
EU_OPT
R1640
470
EU_OPT
R1617
10K
D1619
30V
REAR_AV
D1604
30V
COMP2_DET
C1612
330pF
50V
L1604
120-ohm
C1611
330pF
50V
SC1/COMP1_L_IN
SC1_FB
SC1_ID
R1632
10K
JK1602
PSC008-01
EU_OPT
1
AUDIO_R_OUT
2
AUDIO_R_IN
3
AUDIO_L_OUT
4
AUDIO_GND
5
B_GND
6
AUDIO_L_IN
7
B_OUT
8
ID
9
G_GND
10
D2B_IN
11
G_OUT
12
D2B_OUT
13
R_GND
14
RGB_GND
15
R_OUT
16
RGB_IO
17
SYNC_GND1
18
SYNC_GND2
19
SYNC_OUT
20
SYNC_IN
21
COM_GND
22
AV_DET
C1663
330pF
50V
REAR_AV
C1621
47uF
16V
EU_OPT
DTV/MNT_VOUT
D1613
5.6V
OPT
R1664
33K
EU_OPT
D1601
5.6V
OPT
IC1601
AS324MTR-E1
EU_OPT_BCD
3
IN1+
2
IN1-
4
VCC
1
OUT1
6
IN2-
5
IN2+
7
OUT2
8
OUT3
9
IN3-
10
IN3+
11
GND
12
IN4+
13
IN4-
14
OUT4
Q1602
2SC3052
EU_OPT
E
B
C
D1625
5.6V
REAR_AV
L1601
BLM18PG121SN1D
EU_OPT
DTV/MNT_L_OUT
SC1/COMP1_R_IN
D1609
5.6V
NON_EU
R1621
75
R1626
470K
R1604
75
C1618
4700pF
EU_OPT
R1633
10K
C1648
220pF
50V
OPT
AV_CVBS_DET
R1627
22
EU_OPT
COMP2_Pr+
R1636
12K
R1619
75
R1616
75
EU_OPT
L1602
BLM18PG121SN1D
EU_OPT
SCART1_Rout
R1623
15K
EU_OPT
C1645
10uF
16V
EU_OPT
C1617
1000pF
50V
OPT
SC1_B+/COMP1_Pb+
AV_R_IN
R1668
10K
EU_OPT
SC1/COMP1_DET
R1634
12K
SC1_R+/COMP1_Pr+
D1605
30V
C1636
0.1uF
EU_OPT
R1605
75
+3.3V_Normal
COMP2_Y+
D1608
5.6V
OPT
R1612
10K
D1616
5.6V
R1635
390
EU_OPT
DTV/MNT_R_OUT
R1613
10K
DTV/MNT_R_OUT
R4211
390
EU_OPT
C1662
330pF
50V
REAR_AV
R1689
12K
REAR_AV
C1610
1000pF
50V
EU_OPT
D1618
30V
OPT
SC1_SOG_IN
L1606
EU_OPT
C1644
10uF
16V
EU_OPT
DTV/MNT_L_OUT
R4221
0
EU_OPT
R1648
2K
EU_OPT
+3.3V_Normal
2SC3052
Q1608
EU_OPT
AV_L_IN
D1606
30V
R1631
12K
Q1610
RT1P141C-T112
EU_OPT
1
2
3
R1628
75
EU_OPT
D1610
30V
OPT
5.6V
D1617
JK1601
PPJ-230-01
COMPONENT1
9
[GN]G
10
[GN]GND
8
[GN]C_DET
7
[BL]B
6
[RD]R
5
[WH]L_IN
4
[RD]R_IN
11
FIX-TER
13
[RD]MONO
R1639
180
EU_OPT
R1606
470K
+3.5V_ST
C1608
220pF
50V
OPT
L1603
120-ohm
COMP2_L_IN
COMP2_R_IN
R1607
470K
+12V/+15V
+12V/+15V
L1610
120-ohm
REAR_AV
C1623
0.1uF
50V
EU_OPT
AV_CVBS_IN
D1603
30V
OPT
SCART1_Lout
R1665
33K
EU_OPT
R1629
3.9K
EU_OPT
COMP2_Pb+
R1630
12K
C1620
100uF
16V
EU_OPT
D1602
30V
OPT
R1672
470K
REAR_AV
R1656
2.2K
EU_OPT
R1642
15K
EU_OPT
D1615
30V
JK1603
PPJ234-01
REAR_COMP2
5A
[GN]O-SPRING
6A
[GN]E-LUG
4A
[GN]CONTACT
7B
[BL]E-LUG-S
5B
[BL]O-SPRING
7C
[RD]E-LUG-S
5C
[RD]O-SPRING_1
5D
[WH]O-SPRING
4E
[RD]CONTACT
5E
[RD]O-SPRING_2
6E
[RD]E-LUG
R1688
12K
REAR_AV
C1619
4700pF
EU_OPT
R1655
2.2K
EU_OPT
R1615
1K
R1657
5.6K
EU_OPT
R1661
470K
OPT
R1658
5.6K
EU_OPT
SCART1_MUTE
R1684
10K
REAR_AV
R1608
75
C1604
47pF
50V
EU_OPT
C1654
33pF
EU_OPT
R1671
470K
REAR_AV
DTV/MNT_R_OUT
C1655
33pF
EU_OPT
C1643
47pF
50V
REAR_AV
R1654
75
REAR_AV
C1609
1000pF
50V
EU_OPT
0
R4210
EU_OPT
D1614
30V
R1650
2K
EU_OPT
R4216
0
R4219
0
C1664
330pF
C1665
330pF
R4218
220K
R4217
220K
REAR_JACK
20110324
17
GP3_S7LR
[SCART AUDIO MUTE]
Gain=1+Rf/Rg
Full Scart/ Comp1
Rg
IN CASE OF SMALL= 15V
Rear AV
CLOSE TO MSTAR
Rf
L-MONO
COMPONENT2
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.
CI_DATA[6]
CI_ADDR[11]
CI_ADDR[14]
CI_ADDR[6]
CI_DATA[0]
FE_TS_DATA[0]
FE_TS_DATA[3]
FE_TS_DATA[7]
CI_DATA[2]
CI_ADDR[10]
CI_DATA[0-7]
CI_ADDR[0]
@netLa
CI_ADDR[13]
CI_DATA[0-7]
CI_DATA[0-7]
CI_ADDR[5]
FE_TS_DATA[4]
FE_TS_DATA[2]
PCM_D[7]
FE_TS_DATA[6]
CI_DATA[7]
CI_DATA[2]
CI_DATA[7]
CI_DATA[3]
CI_ADDR[2]
CI_ADDR[1]
CI_ADDR[9]
FE_TS_DATA[5]
PCM_D[1]
CI_DATA[1]
CI_ADDR[3]
CI_DATA[1]
PCM_D[0-7]
CI_DATA[4]
CI_ADDR[4]
PCM_D[3]
PCM_D[6]
CI_ADDR[12]
PCM_D[4]
PCM_D[0]
PCM_D[2]
CI_DATA[0]
CI_DATA[4]
PCM_D[5]
CI_DATA[5]
CI_DATA[5]
CI_DATA[6]
CI_ADDR[7]
FE_TS_DATA[1]
CI_DATA[3]
CI_ADDR[8]
C1907
0.1uF
16V
+5V_Normal
L1902
BLM18PG121SN1D
CI_MCLKI
C1912
0.1uF
16V
OPT
/CI_CD2
C1911
4.7uF
16V
C1913
0.1uF
16V
R1919
47
R1904
10K
Q1902
RSR025P03
S
D
G
CI_TS_DATA[2]
+5V_CI_ON
/CI_CD1
/PCM_IRQA
/CI_CD1
PCM_A[0]
PCM_A[12]
C1904
0.1uF
16V
CI_WE
CI_MDI[0]
/PCM_IOWR
CI_ADDR[9]
CI_TS_DATA[4]
CI_WE
P1901
10067972-000LF
CI_SLOT_JACK
EAG41860102
G1
G2
57
21
52
16
10
47
41
5
36
59
23
45
54
18
49
43
13
7
38
2
25
56
20
51
15
9
46
40
4
35
58
22
53
17
11
48
42
12
6
37
1
24
55
19
50
44
14
8
39
3
26
60
27
61
28
62
29
63
30
64
31
32
33
34
65
66
67
68
69
CI_IOWR
Q1901
2SC3052
E
B
C
R1924
10K
C1906
10uF
10V
+3.3V_CI
PCM_A[6]
FE_TS_DATA[0-7]
REG
AR1907
33
R1901
47
R1906
10K
R1916
0
OPT
AR1912
33
PCM_A[9]
L1901
BLM18PG121SN1D
C1910
0.1uF
16V
R1909
0
OPT
CI_ADDR[0]
CI_TS_DATA[1]
CI_DET
R1923
10K
OPT
CI_ADDR[4]
CI_MDI[6]
CI_DET
GND
AR1903
33
AR1913
33
CI_TS_DATA[6]
R1917
10K
PCM_RST
R1913
10K
R1908
100
PCM_A[1]
CI_ADDR[2]
/PCM_CD
CI_MDI[5]
PCM_5V_CTL
PCM_A[7]
AR1908
33
CI_OE
+3.3V_CI
CI_ADDR[8]
GND
CI_OE
CI_TS_CLK
C1909
0.1uF
CI_ADDR[7]
CI_IORD
CI_DATA[0-7]
CI_ADDR[1]
CI_MDI[3]
PCM_A[11]
CI_ADDR[6]
P1902
10067972-050LF
G1
G2
57
21
52
16
10
47
41
5
36
59
23
45
54
18
49
43
13
7
38
2
25
56
20
51
15
9
46
40
4
35
58
22
53
17
11
48
42
12
6
37
1
24
55
19
50
44
14
8
39
3
26
60
27
61
28
62
29
63
30
64
31
32
33
34
65
66
67
68
69
C1901
0.1uF
OPT
CI_ADDR[12]
/CI_CD2
FE_TS_SYNC
CI_ADDR[14]
CI_MDI[5]
CI_IORD
IC1901
74LVC1G32GW
CI_SLOT_OR_GATE_NXP
3
GND
2
A
4
Y
1
B
5
VCC
CI_ADDR[3]
CI_TS_VAL
PCM_A[14]
CI_ADDR[11]
/PCM_WAIT
CI_TS_SYNC
C1902
0.1uF
AR1909
33
CI_IOWR
C
1
9
0
8
0
.
1
u
F
1
6
V
OPT
R1902
47
REG
CI_MDI[7]
CI_ADDR[13]
GND
/PCM_OE
CI_MDI[3]
CI_MDI[4]
PCM_A[4]
R1922
2.2K
IC1902
TC74LCX244FT
0ITO742440D
TOSHIBA
3
2Y4
2
1A1
4
1A2
1
1OE
6
1A3
5
2Y3
7
2Y2
8
1A4
9
2Y1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
2OE
20
VCC
/PCM_REG
CI_MDI[2]
+5V_Normal
CI_MDI[0]
CI_MCLKI
CI_MIVAL_ERR
AR1904
33
R1910
0
OPT
PCM_A[5]
/PCM_CE
R1914
22K
CI_MDI[7]
PCM_A[2]
CI_MISTRT
AR1905
33
R1915
47
/PCM_WE
CI_MDI[4]
R1903
10K
+3.3V_CI
R1920
100
R1912
10K
OPT
PCM_A[10]
+5V_Normal
FE_TS_VAL_ERR
CI_DATA[0-7]
AR1906
33
CI_ADDR[5]
CI_TS_DATA[7]
CI_ADDR[10]
GND
/PCM_IORD
R1918
47
AR1901
33
CI_TS_DATA[3]
+5V_CI_ON
R1907
100
CI_TS_DATA[5]
CI_MDI[1]
CI_TS_DATA[0]
CI_MDI[2]
FE_TS_CLK
PCM_A[8]
PCM_D[0-7]
C1903
0.1uF
16V
PCM_A[3]
C1905
0.1uF
GND
CI_MIVAL_ERR
+3.3V_CI
CI_MISTRT
R1905
10K
CI_MDI[1]
CI_ADDR[0-14]
CI_MDI[6]
+3.3V_Normal
R1921
10K
PCM_A[13]
GND
R1925
33
R1926
33
R1927
33
C1914
12pF
50V
PCMCI
20110324
20
GP3_S7LR
CI TS INPUT
CI SLOT
CI HOST I/F
CI DETECT
* Option name of this page : CI_SLOT
CI Region
(because of Hong Kong)
CI POWER ENABLE CONTROL
CLOSE TO MSTAR
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.
MDL61930001
GAS5
DO_NOT_APPLY
MDL61930001
GAS3
DO_NOT_APPLY
MDL61930001
GAS6
DO_NOT_APPLY
MDL61930001
GAS2
DO_NOT_APPLY
MDL61930001
GAS1
DO_NOT_APPLY
MDL61930001
GAS7
DO_NOT_APPLY
MDL61930001
GAS4
DO_NOT_APPLY
MDS62110205
GAS3-*2
7.5T_GAS
MDS62110209
GAS7-*5
8.5T_GAS
MDS62110204
GAS1-*1
5.5T_GAS
MDS61887708
GAS4-*4
12.5T_GAS
MDS62110204
GAS3-*1
5.5T_GAS
MDS61887708
GAS5-*4
12.5T_GAS
MDS61887708
GAS7-*4
12.5T_GAS
MDS62110204
GAS4-*1
5.5T_GAS
MDS62110205
GAS5-*2
7.5T_GAS
MDS62110205
GAS4-*2
7.5T_GAS
MDS62110209
GAS1-*5
8.5T_GAS
MDS62110205
GAS2-*2
7.5T_GAS
MDS62110209
GAS3-*5
8.5T_GAS
MDS62110209
GAS5-*5
8.5T_GAS
MDS62110209
GAS6-*5
8.5T_GAS
MDS62110205
GAS1-*2
7.5T_GAS
MDS61887708
GAS6-*4
12.5T_GAS
MDS62110204
GAS6-*1
5.5T_GAS
MDS61887708
GAS2-*4
12.5T_GAS
MDS61887708
GAS1-*4
12.5T_GAS
MDS62110204
GAS2-*1
5.5T_GAS
MDS62110205
GAS6-*2
7.5T_GAS
MDS62110205
GAS7-*2
7.5T_GAS
MDS62110204
GAS5-*1
5.5T_GAS
MDS62110204
GAS7-*1
5.5T_GAS
MDS62110209
GAS2-*5
8.5T_GAS
MDS62110209
GAS4-*5
8.5T_GAS
MDS61887708
GAS3-*4
12.5T_GAS
MDS62110206
GAS7-*6
6.5T_GAS
MDS62110206
GAS3-*6
6.5T_GAS
MDS62110206
GAS2-*6
6.5T_GAS
MDS62110206
GAS4-*6
6.5T_GAS
MDS62110206
GAS5-*6
6.5T_GAS
MDS62110206
GAS6-*6
6.5T_GAS
MDS62110206
GAS1-*6
6.5T_GAS
MDS62110214
GAS6-*3
9.5T_GAS
MDS62110214
GAS1-*3
9.5T_GAS
MDS62110214
GAS4-*3
9.5T_GAS
MDS62110214
GAS2-*3
9.5T_GAS
MDS62110214
GAS7-*3
9.5T_GAS
MDS62110214
GAS3-*3
9.5T_GAS
MDS62110214
GAS5-*3
9.5T_GAS
SMD_GAS
20110324
20
GP3_S7LR
SMD GASKET
THERMAL
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.
SMALL_TN_LED_DRIVER
C10008
0.1uF
50V
C10013
1000pF
50V
Q10001
AP18T10GH
S
D
G
R10009
51K 1%
OPT
C10001
2.2uF
50V
C10018
2.2uF
100V
R10019-*1
11K
1/10W
21.5"
C10009
1uF
10V
R10005
100
1/10W
OPT
D10001
PDS5100H-13
R10007
4.7
1/10W
R10017
0.1
1%
C10015
1000pF
50V
R10001
100
1/10W
C10011
1000pF
50V
OPT
L10001
33uH
+24V_LED_driver
C10020
2.2uF
100V
OPT
R10008
16K 1%
PWM_DIM
R10006
390
1/10W
C10016
10uF
100V
OPT
C10003
100pF
50V
IC10000
MAX16814
1
IN
3
COMP
7
SETI
9
SGND
10
DIM
11
OUT1
12
OUT2
13
LEDGND
14
OUT3
15
OUT4
16
CS
17
PGND
18
NDRV
19
DRV
20
VCC
5
FLT
8
RSDT
6
OVP
4
RT
2
EN
21
[EP]PGND/LEDGND
R10004
100K
1/10W
C10004
100pF
50V
C10017
1000pF
50V
C10019
1000pF
50V
R10002
10K
1/10W
OPT
C10006
2200pF
50V
R10014
7.5K
1/8W
C10014
10uF
100V
R10016
3K
1/8W
C10005
0.1uF
50V
WLED_ENABLE
R10019
16K
1/10W
18.5"
C10012
2.2uF
100V
ERROR_OUT
R10012
5.1
OPT
C10002
2.2uF
50V
P10000
10031HR-H06
LGD
1
2
3
4
5
6
7
C10010
1000pF
50V
OPT
R10018
560K
1/10W
R10003
100
1/10W
C10021
0.1uF
50V
R10020
0
1/10W
5%
NON_LGD
R10021
0
1/10W
5%
NON_LGD
R10022
0
1/10W
5%
LGD
R10023
0
1/10W
5%
LGD
C10022
10uF
100V
OPT
C10007
0.33uF
50V
R10011-*1
27K
1/10W
1%
LGD
R10013-*1
27K
1/10W
1%
LGD
R10011
47K
1/10W
1%
AUO_CPT
R10013
51K
1/10W
5%
AUO_CPT
P10001
12507WR-06L
NON_LGD
1
2
3
4
5
6
7
R10010
10K
1/8W
R10024
3.9K
PWM_PULL_DOWN
R10011-*2
59K
1/16W
1%
CMI
R10013-*2
59K
1/16W
1%
CMI
R10019-*2
13K
1/10W
CMI_21.5"
R10015
12
1/10W
5%
R10019-*3
18K
1/10W
CMI_18.5"
LED driver circuit for TN module
Operating Freq.
R111 : 470 --> 390
F=7.35x10^9/RT
R120 : 6.8K --> 3K
2010.06.30. hwson 
for thermal Issue
close to IC10000
R121 : 0.03 --> 0.1
close to IC10000
2010.06.30 HWSON
C106 : 0.68uF --> 0.33uF
R113/R114
C104 : 10uF --> 2.2nF
2010.02.07 for PQ/19V_LED
ESD protection solution
must be modifed
wafer modify & resister add
must be modifed
LED driver
2011.05.09
29
S7LR SMALL TN
56.0
50mA_Typ
61.35mA
57.6V_Max
34.0
51.2
47.6
11Kohm
CMI_18.5
52.8
36.0V_Max
60mA_Typ
63.85V
11Kohm
Remark
560Kohm
52.8V_Typ
57.6
560Kohm
560Kohm
CMI_21.5_FHD
28.0
120mA_Max
63mA_Max
Remark
34.0
44.8V_Typ
50.85mA
Max
R10013
48.0
44.28V
47Kohm
39.2
LGD_21.5_FHD
30.0
Typ
39.50V
ILED spec
560Kohm
16Kohm
34.0V_Max
OVP = 1.23*(1+R1/R2)
AUO_18.5
R10018
Module
56mA_Max
34.0V_Typ
R10019
560Kohm
110mA_Typ
Vs spec
Module
44.8
CMI_21.5
54.21V
CMI_18.5_HD
LGD_21.5
51Kohm
R10011
47.6V_Max
51.2V_Typ
63.85V
AUO_21.5_FHD
AUO_18.5_HD
27Kohm
56.0V_Max
59Kohm
33.0
13Kohm
111.11mA
AUO_21.5
-
min
27Kohm
59Kohm
ILED = 1500/RSETI
36.0
33.0V_Typ
18Kohm
CPT_21.5_FHD
52.0V_Typ
560Kohm
57.6V_Max
CPT_21.5
11Kohm
63.85V
52.0
57.6
46.4
AUO_18.5
Module
AUO_21.5
CPT_21.5
CMI_21.5
CMI_18.5
LGD_21.5
Forward voltage spec.
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