LG 32LT360C-SA (CHASSIS:LJ2AC) Service Manual ▷ View online
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EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
30
0
20
0
51
0
50
0
12
0
53
0
55
0
81
0
52
1
80
0
LV
1
40
0
90
0
91
0
54
0
* S
et
+
S
ta
nd
* S
ta
nd
B
as
e
+
Bo
dy
A10
A7
A2
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.
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.
SC1_SOG_IN
CI_TS_DATA[0]
PCM_D[6]
PCM_5V_CTL
/PCM_CE
SC1_FB
CI_TS_CLK
PCM_A[10]
PCM_A[9]
HP_LOUT
CI_TS_DATA[2]
CI_TS_SYNC
PCM_A[13]
SC1_ID
PCM_D[1]
HP_DET
SCART1_MUTE
PCM_D[5]
/PCM_WE
SC1_CVBS_IN
/PCM_IRQA
PCM_D[3]
/CI_CD1
PCM_D[0]
/PCM_CD
CI_TS_DATA[5]
PCM_D[2]
PCM_A[14]
CI_TS_DATA[4]
SCART1_Lout
/PCM_REG
HP_ROUT
/PCM_IOWR
CI_TS_DATA[1]
PCM_RST
/CI_CD2
PCM_A[12]
CI_TS_VAL
CI_TS_DATA[3]
/PCM_WAIT
SCART1_Rout
CI_TS_DATA[6]
PCM_D[4]
PCM_A[8]
DTV/MNT_VOUT
PCM_D[7]
CI_DET
/PCM_OE
SIDE_HP_MUTE
CI_TS_DATA[7]
S2_RESET
LNB_INT
/PCM_IORD
PCM_A[11]
2 0 1 1 . 0 7 . 0 7
TP_NON_EN
3
GP4_S7LR2
T P f o r H e a d p h o n e
T P f o r S 2
T P f o r C I s l o t
TP for NON-EU models(except EU and China)
TP for SCART
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.
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.
RL_ON
10K
R462
100pF
50V
C439
0 . 1 u F
16V
C416
OPT
+3.5V_ST
10K
R426
10uF
25V
C443
MLB-201209-0120P-N2
L407-*1
10K
R430
+3.3V_Normal
+3.5V_ST
+24V
22uF
10V
C453
22uF
16V
16V
C437
ERROR_OUT
10uF
10V
10V
C403
10K
R434
THERMAL
AP7173-SPG-13 HF(DIODES)
IC407
3
VCC
2
PG
4
EN
1
IN
5
GND
6
SS
7
FB
8
OUT
9
[ E P ]
0 . 1 u F
16V
16V
C444
47K
R429
OPT
4.7K
R486
OPT
NCP803SN293
IC408
PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
+3.5V_ST
POWER_DET
0 . 1 u F
16V
16V
C408
OPT
POWER_ON/OFF_1
+3.5V_ST
1/16W 330K 5%
R432
PANEL_VCC
10K
R428
NCP803SN293
IC409
PD_+12V_PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
OLP
0 . 1 u F
16V
C441
+3.3V_Normal
MLB-201209-0120P-N2
L404-*1
100
R480
PD_+12V
1/16W
27K
1%
R442
10uF
10V
C461
CIS21J121
L407
+1.10V_VDDC
L413
0 . 1 u F
16V
C435
NON_CI_CAP
+3.5V_ST
+12V/+15V
10K
R461
OPT
+1.5V_DDR
CIS21J121
L404
+12V/+15V
+3.5V_ST
BLM18PG121SN1D
L403
0 . 1 u F
16V
C425
+3.3V_Normal
0 . 1 u F
16V
C407
OPT
0 . 1 u F
16V
C476
100K
R404
PD_+12V
33K
R439
1K
R419
BLM18PG121SN1D
L420
0 . 1 u F
50V
C418
22uF
10V
C456
PANEL_CTL
1:AK10
10uF
10V
10V
C430
1K
OPT
R181
560pF
50V
50V
C467
MLB-201209-0120P-N2
L402-*1
FW20020-24S
P403
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
0 . 1 u F
16V
16V
C431
NON_CI_CAP
10K
R421
0 . 1 u F
16V
16V
C406
22K
R435
OPT
+3.3V_Normal
+3.5V_ST
+3.5V_ST
4.7K
R406
CIS21J121
L402
0 . 1 u F
16V
16V
C432
NON_CI_CAP
10K
R433
6.8K
OPT
R418
FM20020-24
P404
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
AO3407A
Q409
G
D
S
1/16W
4.7K
1%
R456
10K
R401
SMAW200-H24S2
SLIM_32~52
P401
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
10K
OPT
R427
15K
R436
22K
R431
OPT
0 . 1 u F
16V
16V
C411
4 . 7 u F
16V
16V
C423
T J 3 9 4 0 S - 2 . 5 V - 3 L
IC402
1
GND
2
VOUT
3
VIN
0 . 1 u F
16V
16V
C440
PWM_DIM
10K
R490
OPT
THERMAL
TPS54319TRE
IC403
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]
100K
R488
0 . 1 u F
16V
C475
NON_CI_CAP
0
OPT
R476
+3.3V_Normal
0
OPT
R475
0 . 1 u F
C474
5.6K
R440
L412
+12V/+15V
+3.5V_ST
0 . 1 u F
16V
16V
OPT
C445
+24V
0 . 1 u F
16V
C404
0
OPT
R412
+3.3V_Normal
100
R420
ERROR_OUT
INV_CTL
10K
OPT
R180
10K
R489
10K
OPT
R446
1/16W
56K
1%
R441
10K
R463
OPT
+2.5V_Normal
0 . 1 u F
16V
16V
C412
PD_+12V
100
R402
100
R415
+3.3V_Normal
22K
R438
10K
R443
A_DIM
1/16W
4.3K
1%
R457
22uF
10V
C472
NR8040T3R6N
3.6uH
L415
APX803D29
PWR_DET_ON_DIODES
I C 4 0 8 - * 1
1
GND
3
VCC
2
RESET
APX803D29
PD_+12V_PWR_DET_DIODES
I C 4 0 9 - * 1
1
GND
3
VCC
2
RESET
0 . 0 1 u F
50V
C436
0 . 0 1 u F
3300pF
50V
C448
3300pF
C488
1.5K
1%
R403
POWER_+24V
2.2K
R405
PANEL_DISCHARGE_RES_2.2K
2.2K
R407
PANEL_DISCHARGE_RES_2.2K
2.7K
1%
PD_+12V
R448
0
5%
PD_+3.5V
R450
1
R473
8.2K
1%
R482
POWER_+24V
3K
R405-*1
PANEL_DISCHARGE_RES_3K
3K
PANEL_DISCHARGE_RES_3K
R407-*1
PWM1
100
R408
FOR 200HZ PWM_DIM2
33
R184
FOR LPB MODEL
12507WR-08L
P407
FOR LPB MODEL
1
2
3
4
5
6
7
8
9
33
R183
FOR LPB MODEL
I2C_SDA
I2C_SCL
1K
R606-*1
PWM_PULL-DOWN_1K
3.9K
R606
PWM_PULL-DOWN_3.9K
0 . 0 1 5 u F
50V
50V
C409
0 . 0 1 5 u F
MMBT3904(NXP)
Q400
E
B
C
MMBT3904(NXP)
Q401
E
B
C
MMBT3904(NXP)
Q405
E
B
C
MMBT3904(NXP)
Q406
OPT
E
B
C
MMBT3904(NXP)
Q407
E
B
C
0 . 3 3 u F
16V
C447
+12V/+15V
12K
R608
10K
R410
L401
BLM18PG121SN1D
L425
+5V_Normal
100pF
C4072
OPT
22uF
16V
16V
C420
10uF
25V
25V
C405
OPT
22uF
16V
16V
C492
OPT
3.6uH
L406
THERMAL
AOZ1051PI
IC401
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
SS
8
NC
9
[EP]LX
11K
1%
R609
56K
1%
R416
+5V_USB
12K
1%
R423
0 . 1 u F
16V
16V
C4073
OPT
0 . 1 u F
16V
16V
C4074
OPT
10uF
25V
25V
C4075
1/16W
1.2K
1%
R447
PD_+12V
MMBT3906(NXP)
Q402
1
2
3
33K
R610
OPT
AO3407A
Q403
G
D
S
2200pF
50V
50V
C494
0 . 0 1 u F
50V
50V
C493
0 . 1 u F
25V
25V
C438
0 . 1 u F
25V
25V
C455
NON_CI_CAP
0 . 1 u F
25V
C451
OPT
10uF
25V
25V
OPT
C442
0
R611
NON_PSU_T120_LGD
100
R445
FROM LIPS & POWER B/D
R2
+1.5V_DDR
’ E R R O R _ O U T ’ i s u s e d f o r
lamp(CCFL/EEFL) models.
I n o t h e r w o r d s ,
L E D m o d e l s n e e d n o t u s e .
New item
Power_DET
2 4 V - - > 3 . 7 8 V - - > 3 . 9 2 V ( 3 . 7 9 V )
1 2 V - - > 3 . 5 8 V - - > 3 . 8 2 V ( 3 . 6 8 V )
Vd=550mV
+2.5V/+1.8V
R1
+3.3V_Normal
V o u t = 0 . 8 * ( 1 + R 1 / R 2 ) = 1 . 5 3 1 9
Vout=0.827*(1+R1/R2)=1.225V
N o t u s e d :
o n l y f o r s m a l l ( r e a d y )
R1
R2
$ 0 . 1 6 5
S 7 L R c o r e 1 . 2 V v o l t
S T _ 3 . 5 V - - > 3 . 3 7 5 V - - > 3 . 4 6 V
+ 3 . 5 V _ S T - > 3 . 3 7 5 V
780 mA
Max 1000mA
1 8 . 5 V - - > 3 . 5 V - - > 3 . 7 5 V ( 3 . 5 9 V )
300 mA
1.5A
PANEL_POWER
3A
2 0 V - - > 3 . 5 1 V - - > 3 . 7 6 V ( 3 . 5 9 V )
[To LED DRIVER]
FOR LPB Download
+5V_USB
R2
3A
R1
2000 mA
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
2 0 1 1 / 1 0 . 0 5
POWER_LARGE
4
GP4L_S7LR2
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