DOWNLOAD LG 32LV2500-UG (CHASSIS:LA01M) Service Manual ↓ Size: 10.34 MB | Pages: 51 in PDF or view online for FREE

Model
32LV2500-UG (CHASSIS:LA01M)
Pages
51
Size
10.34 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
32lv2500-ug-chassis-la01m.pdf
Date
PREV: LG 32LV2500-UA (CHASSIS:LA01U) Service Manual

LG 32LV2500-UG (CHASSIS:LA01M) Service Manual ▷ View online

THERMAL
THERMAL
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.
+3.5V_ST
C451
0.1uF
OPT
C466
2200pF
+5V_TUNER
C491
0.1uF
50V
+5V_TUNER
R404
100K
PD_+12V
R430
10K
C404
0.1uF
16V
+12V/+15V
L415
3.6uH
NR8040T3R6N
Q409
AO3407A
G
D
S
PWM_DIM
Q407
2SC3052
E
B
C
R
4
4
1
5
6
K
1
/
1
6
W
1
%
C456
22uF
10V
+3.5V_ST
IC411
AP1117EG-13 
+5V_TUNER
ADJ/GND
OUT
IN
R408
110
+5V_TUNER
C402
100uF
16V
OPT
560pF
C467
50V
R458
12K
+5V_TUNER
R427
10K
OPT
C419
10uF
10V
+5V_TUNER
C436
0.01uF
25V
0.01uF
+12V/+15V
R403
1.5K
1%
POWER_+24V
C458
10uF
25V
+5V_TUNER
IC403
TPS54319TRE
1
VIN_1
3
GND_1
7
COMP
9
SS/TR
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
L404
MLB-201209-0120P-N2
R419
1K
C440
0.1uF
16V
+3.3V_Normal
C489
100pF
Q405
2SC3052
E
B
C
C437
22uF
16V
C477
0.1uF
16V
+5V_TUNER
+3.3V_Normal
L413
R443
10K
R421
10K
C474
0.1uF
L401
C407
0.1uF
16V
OPT
C453
22uF
10V
R476
0
POWER_23_GND
R407
2.2K
OPT
C493
3300pF
50V
C405
10uF
25V
R416
56K
1%
R606
3.9K
PWM_PULL-DOWN_3.9K
C403
10uF
10V
R440 5.6K
C415
10uF
10V
+5V_TUNER
C472
22uF
10V
R486
4.7K
OPT
+24V
0
R484
POWER_20_PWM_DIM
R459
10K
+5V_TUNER
+1.5V_DDR
+5V_TUNER
POWER_DET
R412
0
POWER_16_GND
+5V_Normal
R465
24K
1%
+5V_TUNER
L402-*1
CIS21J121
R429
47K
OPT
L412
+3.5V_ST
R410
10K
P401
SMAW200-H24S2
SLIM_32~52
19
12V
14
GND
9
3.5V
4
24V
18
INV ON
13
GND
8
GND
3
24V
17
12V
12
3.5V
7
GND
2
24V
16
GND/V-sync
11
3.5V
6
GND
1
PWR ON
20
A.DIM
15
GND
10
3.5V
5
GND
21
12V
22
P.DIM1
23
GND/P.DIM2
24
Err OUT
25
R432
330K
1/16W
5%
INV_CTL
C438
0.1uF
16V
C411
0.1uF
16V
R422
1
5%
+5V_TUNER
Q403
RSR025P03
S
D
G
R415
100
POWER_18_INV_CTL
C406
0.1uF
16V
C445
0.1uF
16V
OPT
C425
0.1uF
16V
C423
4.7uF
16V
OPT
C448
3300pF
50V
PANEL_CTL
1:AK10
IC407
AP7173-SPG-13 HF(DIODES)
3
VCC
2
PG
4
EN
1
IN
5
GND
6
SS
7
FB
8
OUT
9
[EP]
R475
0
POWER_24_GND
A_DIM
+3.5V_ST
C414
0.1uF
16V
+5V_TUNER
+12V/+15V
Q400
2SC3052
E
B
C
R466
51K
1%
+5V_TUNER
+1.10V_VDDC
C420
22uF
16V
100
R420
POWER_24_ERROR_OUT
R405
2.2K
OPT
100
R437
POWER_20_ERROR_OUT
C443
10uF
25V
R480
100
PD_+12V
0
R471
POWER_22_PWM_DIM
R606-*1
1K
PWM_PULL-DOWN_1K
+12V/+15V
C442
10uF
16V
OPT
R425
100
POWER_24_INV_CTL
R462
10K
L406
3.6uH
NR8040T3R6N
L402
MLB-201209-0120P-N2
+5V_USB
Q401
2SC3052
E
B
C
R445
2.2K
C471
22uF
16V
+5V_TUNER
IC406
AOZ1072AI-3 
+5V_TUNER
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
Q402
RT1P141C-T112
1
2
3
C492
22uF
16V
OPT
+3.3V_Normal
C426
68uF
35V
OPT
R424
1
5%
+5V_TUNER
C432
0.1uF
16V
R463
10K
OPT
C416
0.1uF
16V
OPT
0
R472
POWER_24_PWM_DIM
C409
0.015uF
50V
0.015uF
C444
0.1uF
16V
C435
0.1uF
16V
C447
0.1uF
16V
C494
1uF
10V
C401
100uF
16V
OPT
R488
100K
R401
10K
R409
330
+5V_TUNER
C460
10uF
25V
+5V_TUNER
C476
0.1uF
16V
+5V_Normal
C431
0.1uF
16V
C455
0.1uF
16V
L407
MLB-201209-0120P-N2
C430
10uF
10V
+3.3V_Normal
C490
0.1uF
16V
+5V_TUNER
R439
33K
IC410
AP1117EG-13 
+5V_TUNER
ADJ/GND
OUT
IN
R447
1.21K
1/10W
1%
PD_+12V
RL_ON
C417
0.1uF
16V
+5V_TUNER
R473
1
P404
FM20020-24
NORMAL_32
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
R417
110
+5V_TUNER
R405-*1
3K
PANEL_DISCHARGE_RES
C408
0.1uF
16V
OPT
C412
0.1uF
16V
PD_+12V
R446
10K
OPT
R435
22K
OPT
PANEL_VCC
C422
0.1uF
50V
+5V_TUNER
R482
8.2K
1%
POWER_+24V
C427
100pF
50V
OPT
C418
0.1uF
50V
R451
0
POWER_18_A_DIM
R407-*1
3K
PANEL_DISCHARGE_RES
C439
100pF
50V
+3.5V_ST
L417
+5V_TUNER
C475
0.1uF
16V
R411
330
+5V_TUNER
+3.5V_ST
R426
10K
R402
100
R433
10K
Q406
2SC3052
OPT
E
B
C
L422
3.6uH
NR8040T3R6N
+5V_TUNER
+2.5V_Normal
+3.3V_Normal
R428
10K
R438
22K
P403
FW20020-24S
NORMAL_EXPEPT_32
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
L420
BLM18PG121SN1D
+3.3V_Normal
+3.5V_ST
R431
22K
OPT
10uF
C461
10V
ERROR_OUT
R461
10K
OPT
R453
0
POWER_20_A_DIM
+3.5V_ST
+12V/+15V
R607
11K
1%
L403
BLM18PG121SN1D
L425
BLM18PG121SN1D
NON_5V_TUNER
R418
6.8K
OPT
IC409
NCP803SN293
PD_+12V_PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
+3.5V_ST
L407-*1
CIS21J121
C441
0.1uF
16V
L424
BLM18PG121SN1D
+5V_TUNER
R448
2.7K
1%
PD_+12V
+24V
L404-*1
CIS21J121
R467
10K
1%
+5V_TUNER
R485
0
POWER_22_A_DIM
R434
10K
POWER_ON/OFF_1
R450
0
5%
PD_+3.5V
R406
4.7K
IC408
NCP803SN293
PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
R423
12K
1%
R436
15K
R
4
4
2
2
7
K
1
/
1
6
W
1
%
R457
4.3K
1/16W
1%
R
4
5
6
4
.
7
K
1
/
1
6
W
1
%
OLP
TP401
C488
3300pF
IC402
TJ3940S-2.5V-3L
1
GND
2
VOUT
3
VIN
C413
0.1uF
50V
R608
0
R400
0
OPT
FB_CORE
IC401
TPS54327DDAR
3
VREG5
2
VFB
4
SS
1
EN
5
GND
6
SW
7
VBST
8
VIN
9
[EP]GND
R489
10K
R490
10K
OPT
+3.3V_Normal
R180
10K
OPT
R181
1K
OPT
20110324
GP3_S7LR
POWER_LARGE
4
#13  <--> #20
R1
NC
16
NC
PWM_DIM
18
4A
NC
(PSU)
GND
R2
GND
INV_ON
New item
VBR-A
GND
SHARP
Max 1000mA
Vout=0.8*(1+R1/R2)=1.5319
PWM_DIM
PWM_DIM
Err_out
+1.5V_DDR
PWM_DIM
24
Err_out
CMO10"LED
PWM_DIM
INV_ON
$ 0.165
Vd=550mV
12V -->3.58V --> 3.82V (3.68V)
23
INV_ON
GND
+5V_Normal
16
NC
INV_ON
LGD LPB/ 
GND
Err_out
IPS-@
+3.3V_Normal
--> NC
24
FROM LIPS & POWER B/D
PWM_DIM
R2
R1
780 mA
NC
GND
LGD(PSU)
2A
OS LPB
err_out
or LIPS
PANEL_POWER
Vout=(1+R1/R2)*0.765=5.03V
+3.5V_ST -> 3.375V
R1
(PSU)
err_out
2000 mA
32LE5300-TA
60:PWM
32LE5300-TA
INV_ON
PWM_DIM
INV_ON
1.5A
NC
<LED MODULE PIN MAP -> latest update 20100618>
22
LGD 10"LED
INV  <--> MAIN
60:NC
S7LR core 1.2V volt
NC
(PSU)
GND
R2
(PSU)
MAX 1A
#11  <--> #24
52/60:ERROR
300 mA
Vout=0.827*(1+R1/R2)=1.225V
GND
NC
GND
INV_ON
(PSU)
24V-->3.78V --> 3.92V (3.79V)
ST_3.5V--> 3.375V --> 3.46V
NC
AUO 10"LED
NC
<MODULE PIN MAP>
--> NC
+2.5V/+1.8V
#12  <--> #18
18
INV_ON
32LE4500-TA
C421,C422 Close to LDO
PIN No
Power_DET
NC
#14  <--> #22
A-DIM
(PSU)
26/32HD:NC
NC
20
GND
NC
PWM_DIM
(PSU)
+5V_USB
LGD edge led error-out use or not? checking is necessary...
R1
NC
3A
18.5V-->3.5V --> 3.75V (3.59V)
err_out
20
22
--> NC
AUO 10"Lamp
PIN No
--> NC
err_out
26/32/52:PWM
23
<Module Inv to Main Pin Connection>
CMO10"Lamp
NC
R2
26/32/52:GND
INV_ON
Vout=0.8*(1+R1/R2)
20V-->3.51V --> 3.76V (3.59V)
 Not used :
 only for small(ready)
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.
Q2406
2SC3052
OPT
E
B
C
C2404
1000pF
50V
+3.5V_ST
D903
5.6V
CDS3C05HDMI1
NEW_SUB
R2413
1.5K
LED_B/LG_LOGO
R2402
100
JP2407
+3.5V_ST
S/T_SDA
S/T_SCL
LED_R/BUZZ
C2403
0.1uF
16V
C907
18pF
50V
OPT
JP2408
+3.5V_ST
JP2411
D2402
5.6V
AMOTECH
R2429
47K
OPT
D902
5.6V
CDS3C05HDMI1
NEW_SUB
R2405
10K
1%
C2408
18pF
50V
OPT
C2407
100pF
50V
SENSOR_SCL
C2402
0.1uF
+3.5V_ST
C2401
0.1uF
R2425
47K
OPT
R2431
47K
OPT
R2414
1.5K
R2412
100
EYEQ/TOUCH_KEY
SENSOR_SDA
+3.3V_Normal
C2409
18pF
50V
OPT
R2427
0
P2401
12507WR-12L
OLD_SUB
1
2
3
4
5
6
7
8
9
10
11
12
13
+3.5V_ST
C2405
0.1uF
16V
JP2410
R2428
22
R2404
10K
1%
KEY1
R2426
47K
IR
C2410
0.1uF
16V
OPT
KEY2
JP2409
R2401
100
P2402
12507WR-15L
NEW_SUB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
R2411
100
EYEQ/TOUCH_KEY
R2416
10K
OPT
L2404
BLM18PG121SN1D
C2406
1000pF
50V
Q2405
2SC3052
OPT
E
B
C
R2430
10K
OPT
C906
18pF
50V
OPT
D2401
5.6V
AMOTECH
D2405
5.6V
D2403
5.6V
EYEQ/TOUCH_KEY
D2404
5.6V
EYEQ/TOUCH_KEY
L2401
BLM18PG121SN1D
L2402
BLM18PG121SN1D
L2403
BLM18PG121SN1D
20110324
6
GP3_S7LR
IR/CONTROL-L
IR & LED
CONTROL
U
S
B
 
D
O
W
N
 
S
T
R
E
A
M
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.
USB1_CTL
R1454
10K
L1451
MLB-201209-0120P-N2
120-ohm
IC1450
AP2191DSG
EAN61849601
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
L1451-*1
CIS21J121
JK1450
3
A
U
0
4
S
-
3
0
5
-
Z
C
-
(
L
G
)
USB_JACK
1
2
3
4
5
+5V_USB
C1452
10uF
10V
USB1_OCD
SIDE_USB_DM
C1453
0.1uF
R1458
2K
1/8W
1%
R1459
2K
1/8W
1%
JK1450-*1
3AU04S-345-ZC-H-LG
USB_JACK_LV3400
1
2
3
4
5
R1455
4.7K
OPT
D1451
RCLAMP0502BA
OPT
SIDE_USB_DP
+3.3V_Normal
C1451
22uF
16V
R1451
47
20101023
GP2R
USB_OCP_DIODE
7
USB_DIODES
$0.077
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.
R888
2.7K
DDC_SCL_2
5V_DET_HDMI_4
C807
0.1uF
D804
OPT
DDC_SDA_1
R862
10K
D1+_HDMI2
HDMI_CEC
R871
10K
HDMI_SIDE_EEPROM
D0-_HDMI1
GND
JK801
EAG59023302
HDMI_2
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
JP805
Q801
2SC3052
E
B
C
R878
22
CK-_HDMI4
R875
22
R881
22
R854
68K
OPT
D0+_HDMI2
R815
0
IC804-*1
R1EX24002ASAS0A
HDMI_SIDE_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
5V_HDMI_1
R889
2.7K
+5V_Normal
D2-_HDMI2
HPD4
R828
10K
CK+_HDMI1
D0+_HDMI4
R896
1K
R805
0
OPT
Q803
2SC3052
E
B
C
R884
2.7K
R803
1.8K
HPD2
D811
OPT
D801
OPT
5V_DET_HDMI_2
D802
OPT
R885
2.7K
D824
ENKMC2838-T112
A
1
C
A
2
HDMI_CEC
R876
22
R837
1.8K
DDC_SCL_4
HDMI_CEC
IC804
AT24C02BN-SH-T 
HDMI_SIDE_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D821
ENKMC2838-T112
A
1
C
A
2
DDC_SDA_2
DDC_SCL_4
JK803
EAG62611201
HDMI_SIDE
14
13
5
D1_GND
20
BODY_SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
D0+_HDMI1
R808
10K
DDC_SDA_1
JP810
IC802
AT24C02BN-SH-T 
HDMI_2_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R804
1.8K
+5V_Normal
IC801-*1
R1EX24002ASAS0A
HDMI_1_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R877
22
R874
10K
HDMI_1_EEPROM
D2+_HDMI4
CK-_HDMI2
C806
0.1uF
EDID_WP
EDID_WP
R806
10K
D1-_HDMI2
DDC_SCL_1
D822
ENKMC2838-T112
A
1
C
A
2
DDC_SDA_2
CK+_HDMI4
JP806
IC801
AT24C02BN-SH-T 
HDMI_1_ATMEL
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
JK802
EAG59023302
HDMI_1
14
13
5
D1_GND
20
SHIELD
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
CK+_HDMI2
SI1012CR-T1-GE3
Q806
OPT
S
D
G
C805
0.1uF
16V
OPT
R887
2.7K
5V_DET_HDMI_1
IC802-*1
R1EX24002ASAS0A
HDMI_2_RENESAS
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
GND
R830
10K
D0-_HDMI2
DDC_SCL_1
R882
22
5V_HDMI_2
CK-_HDMI1
JP812
+5V_Normal
C802
0.1uF
16V
D1-_HDMI1
DDC_SDA_4
D803
AVRL161A1R1NT
OPT
R841
0
R897
1K
R857
68K
OPT
R807
10K
R895
1K
Q802
2SC3052
E
B
C
D1+_HDMI4
R835
3.3K
DDC_SCL_2
R873
10K
HDMI_2_EEPROM
C803
0.1uF
16V
5V_HDMI_4
HDMI_ARC
D2-_HDMI4
HDMI_CEC
EDID_WP
C809
0.1uF
D2+_HDMI2
5V_HDMI_2
D0-_HDMI4
+3.5V_ST
R856
10K
OPT
D1-_HDMI4
D2+_HDMI1
D2-_HDMI1
R802
3.3K
R891
2.7K
5V_HDMI_4
DDC_SDA_4
CEC_REMOTE_S7
R801
3.3K
HPD1
C801
0.1uF
16V
5V_HDMI_1
D1+_HDMI1
R824
0
R855
100
20110324
 GP3_S7LR
   HDMI
8
HDMI_1
$0.055
HDMI EEPROM
HDMI_2
$0.055
For CEC
SIDE_HDMI
$0.055
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