LG 37LD340H / 37LD345H (CHASSIS:LA06G) 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.
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.
+12V/+15V
0 . 1 u F
50V
50V
C467
+24V
10K
R430
+3.5V_ST
10K
R411
L417
100pF
50V
OPT
C482
22uF
10V
C472
4.7K
1%
R461
100uF
16V
C401
+3.5V_ST
100
R415
POWER_18_INV_CTL
10K
R456
1/10W
10
1%
R452
+1.5V_DDR
+2.5V_Normal
10K
R421
1/16W
5.1K
5%
R447
PD_+12V
0
R441
MP2212DN
IC403
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
POWER_ON/OFF2_2
RL_ON
0 . 1 u F
16V
16V
C408
POWER_ON/OFF1
10K
R401
NR8040T3R6N
3.6uH
L423
POWER_ON/OFF2_1
0 . 1 u F
16V
16V
C432
PANEL_VCC
100pF
50V
C439
10K
1%
R467
33K
1%
R416
0 . 1 u F
16V
16V
C455
22K 1%
R442
100uF
16V
C402
0 . 1 u F
16V
C407
12K
1%
PD_+12V
R448
NR8040T3R6N
3.6uH
L421
A_DIM
+12V/+15V
0 . 1 u F
16V
16V
C406
10K
1%
R457
24K 1%
R444
PWM_DIM
10K
R464
100pF
50V
C463
4.7K
R406
CIC21J501NE
L420
2SC3052
Q406
E
B
C
10uF
16V
OPT
16V
OPT
C442
1
R473
2SC3052
Q401
E
B
C
MLB-201209-0120P-N2
L404
6.2K
1%
R417
ERROR_OUT
6.8K
OPT
R418
+5V_USB
+12V/+15V
100pF
50V
OPT
C429
L412
+12V/+15V
+3.3V_Normal
2SC3052
Q407
E
B
C
12K
R458
0 . 1 u F
C410
0 . 1 u F
16V
16V
C477
27K
1%
R460
22uF
10V
C453
1uF
10V
C444
0
R412
POWER_16_GND
L416
0 . 1 u F
50V
C418
+3.5V_ST
+12V/+15V
L401
51K
5%
R465
NR8040T3R6N
3.6uH
L422
0 . 0 1 u F
25V
C436
POWER_DET
OPC_OUT
22K
R435
1.5K
1%
R466
AOZ1073AIL
IC405
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
100pF
50V
OPT
C423
10uF
25V
25V
C458
2200pF
C466
100pF
50V
OPT
C427
22uF
10V
10V
C430
1uF
25V
25V
C451
OPT
+5V_Normal
0 . 1 u F
16V
16V
C424
+1.26V_VDDC
0 . 1 u F
16V
16V
C473
MLB-201209-0120P-N2
L407
10uF
25V
25V
C457
0 . 1 u F
16V
C416
OPT
+3.3V_Normal
0 . 1 u F
50V
50V
C448
0
R455
22uF
10V
10V
C461
0
R478
OPT
0 . 1 u F
C456
+3.5V_ST
0
POWER_24_PWM_DIM
R472
0
R471
POWER_22_PWM_DIM
POWER_ON/OFF2_2
10K
R463
OPT
0 . 1 u F
16V
C404
+24V
1/8W
75K
1%
R432
+3.3V_Normal
10uF
10V
10V
C403
10uF
25V
25V
C405
68uF
35V
C426
2SC3052
Q405
E
B
C
10uF
25V
25V
C459
0 . 1 u F
16V
16V
C438
INV_CTL
+12V/+15V
L413
1uF
10V
C465
PANEL_CTL
001:AJ25;016:AD13
10K
R427
MLB-201209-0120P-N2
L402
0 . 1 u F
C476
0.1uF
16V
OPT
C412
1/10W
10
1%
R436
1/10W
11K
5%
R449
0 . 1 u F
16V
16V
C428
+3.5V_ST
2200pF
C464
1uF
50V
50V
C414
+3.5V_ST
+3.5V_ST
9.1K
R454
10K
R426
OPT
NR8040T3R6N
3.6uH
L406
10uF
25V
25V
C460
POWER_ON/OFF2_1
0 . 1 u F
16V
16V
C440
MP2212DN
IC407
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
10K
R410
30K
1%
OPT
R446
10K
1%
R462
22K
R431
100
POWER_24_INV_CTL
R425
NR8040T3R6N
3.6uH
L415
RT1P141C-T112
Q402
1
2
3
MP8706EN-C247-LF-Z
IC401
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
1uF
25V
OPT
C419
C419
10K
R445
NCP803SN293
IC408
1
GND
3
VCC
2
RESET
10K
R459
100
R480
OPT
4 . 7 u F
16V
C443
22uF
10V
10V
C420
22uF
10V
10V
C469
22uF
10V
10V
C471
FW20020-24S
P403
OPT
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
POWER_18_A_DIM
R451
0
R453
POWER_20_A_DIM
1uF
25V
OPT
C484
V_SYNC
0
POWER_20_PWM_DIM
R484
CIC21J501NE
L424
3 . 3 V _ b e a d
0 . 1 u F
16V
16V
C485
0
POWER_22_A_DIM
R485
+3.3V_Normal
4.7K
R486
OPT
22
R487
100K
R488
47K
R429
0
OPT
R477
0
POWER_24_GND
R475
0
R476
POWER_23_GND
1K
R419
0
OPT
R422
0
OPT
R470
0 . 1 u F
C486
27K
1%
PD_+3.5V
R447-*1
1K
1%
PD_+3.5V
R450
100
R402
+24V
AZ2940D-2.5TRE1
IC402
2
GND
3
VOUT
1
VIN
AO3407A
Q409
G
D
S
100K
R404
OPT
NCP803SN293
IC409
OPT
1
GND
3
VCC
2
RESET
24K
1%
R482-*1
POWER_+20V
FM20020-24
P404
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
SMAW200-H24S2
OPT
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
0
R479
33K
R439
5.6K
R440
24K
1%
R482
POWER_+24V
4.3K
1%
R403
POWER_+24V
5.1K
5%
R403-*1
POWER_+20V
0 . 1 u F
C474
2.2K
R405
OPT
2.2K
R407
OPT
22uF
10V
10V
C411
OPT
100
POWER_20_ERROR_OUT
R437
100
R420
POWER_24_ERROR_OUT
3.9K
C419-*1
PWM_PULL-DOWN
5.6K
1%
R403-*2
POWER_+18.5V
24K
1%
POWER_+18.5V
R482-*2
+3.5V_ST
2.2K
R408
10K
R409
+3.5V_ST
+3.5V_ST
10K
R413
+3.5V_ST
10K
R414
10K
R423
+3.5V_ST
51K
5%
R494
NR8040T3R6N
3.6uH
L431
22uF
10V
10V
C491
AOZ1072AI
IC410
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
10uF
25V
25V
C488
0 . 1 u F
16V
16V
C492
L430
+3.5V_ST
100pF
50V
OPT
C490
2200pF
C489
POWER_ON/OFF2_2
10K
R491
10uF
25V
25V
C487
1.5K
1%
R493
+12V/+15V
10K
R490
12K
R489
10K
1%
R492
+5V_TUNER
026:Y7
10K
R438
+3.5V_ST
SCAN_BLK1/OPC_OUT
SCAN_BLK2
AOZ1073AIL
IC406
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
1/10W
0
5%
L424-*1
3.3V_REGISTER
1/16W
12K
1%
R448-*1
12Kohm
1/16W
5.1K
5%
R447-*2
5.1Kohm
+5V_USB
Power_DET
R2
+5V_Normal
INV_ON
R2
3A
PWM_DIM
o r L I P S
+2.5V/+1.8V
22
Placed on SMD-TOP
PIN No
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
3A
Placed on SMD-TOP
R1
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
+5V_USB
PANEL_POWER
AUO
VBR-A
C IN
Vd=550mV
1074 mA
S7M DDR 1.5V
26/32/52:PWM
E r r _ o u t
3A
1934 mA
V o u t = ( 1 + R 1 / R 2 ) * 0 . 8
20
S T _ 3 . 5 V - - > 3 . 3 7 5 V
Placed on SMD-TOP
E r r _ o u t
R2
Placed on SMD-TOP
R1
New item
R e p l a c e d P a r t
R1
INV_ON
PWM_DIM
SHARP
INV_ON
300 mA
18
R1
PWM_DIM
R1
20V-->3.51V
24V-->3.64V
24V-->3.64V
C l o s e t o I C
V o u t = ( 1 + R 1 / R 2 ) * 0 . 8
24
NC
FROM LIPS & POWER B/D
MAX 2000mA
R2
A-DIM
2026 mA
C l o s e t o I C
C IN
12V-->3.58V
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
R e p l a c e d P a r t
S 7 M c o r e 1 . 2 6 V v o l t
3A
+3.3V_Normal
MAX 1A
NC
CMO
INV_ON
R2
<OS MODULE PIN MAP>
4
23
IPS-@
+ 3 . 5 V _ S T - > 3 . 3 7 5 V
INV_ON
E r r _ o u t
GND
GND
GND
GND
52/60:ERROR
26/32HD:NC
GND
PWM_DIM
NC
(PSU)
(PSU)
(PSU)
(PSU)
Only for 32/37LED MODEL
1 8 . 5 V - - > 3 . 5 V
60:NC
26/32/52:GND
60:PWM
LGD(PSU)
+5V_TUNER
R1
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
2A
R2
37LD320H
Power
2 0 1 0 . 1 2 . 2 2
3A
u s i n g 3 2 " n e w p a n n e l
100
R6001
RJP
10K
R6014
RJP
2K
R6007
RJP
0.01uF
C6016
RJP
47uF
25V
25V
C6018
RJP
4 . 7 u F
25V
OPT
C6010
+12V/+15V
RJP_CTRL1
0 1 6 : E 1 8
RJP_CTRL0
016:B19
5.1K
R6009
RJP
5.1V
ZD6006
RJP
10K
R6006
RJP
2K
R6010
RJP
100
R6004
RJP
100
R6000
RJP
RJP_CTRL4
016:B13
5.1V
ZD6005
RJP
100
R6002OPT
MJ-657PT-8-SD
JK6000
RJP_JK
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
5.1V
ZD6007
RJP
0.01uF
C6017
RJP
0 . 0 1 u F
C6005
RJP
100
R6003
RJP
0.01uF
C6012
RJP
5.1V
ZD6008
RJP
47uF
25V
25V
C6000
RJP
0.01uF
C6011
RJP
100
R6005
RJP
RJP_CTRL2
0 1 6 : E 1 5
47uF
25V
25V
C6004
RJP
0 . 0 1 u F
C6002
RJP
47uF
25V
25V
C6001
RJP
RJP_CTRL3
016:B16
5.1V
ZD6009
RJP
MLB-201209-0120P-N2
L6000
RJP
5.1K
R6008
RJP
0.01uF
C6014
RJP
SI4925BDY
Q6000
RJP_VISHAY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
0 OPT
R6015
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.
0
R6107
UDZS5.1B
5.1V
ZD6100
BG2012B080TF
L6100
12507WS-12L
P6100
1
LED_B
2
LED_R
3
GND
4
KEY1
5
KEY2
6
5V_ST
7
GND
8
NC
9
IR
10
GND
11
NC
12
NC
13
GND
UDZS5.1B
5.1V
ZD6103
LED_R/BUZZ
016:Q19
KEY2
016:O18
BG2012B080TF
L6102
0.1uF
C6106
1000pF
50V
C6103
1000pF
50V
C6105
5 . 6 B
ZD6104
+3.5V_ST
BG2012B080TF
L6103
5 . 6 B
ZD6101
LED_B/LG_LOGO
016:Q20
5 . 6 B
ZD6102
1000pF
50V
C6107
IR
002:Q4;016:AH14
KEY1
016:O18
0.1uF
C6104
0 . 1 u F
16V
C6108
100pF
50V
C6102
0
R6108
CB3216PA501E
L6101
100K
R6011
RJP
AO4813
Q6000-*1
RJP_AOS
3
S1
2
G2
4
G1
1
S2
5
D1_1
6
D1_2
7
D2_1
8
D2_2
6
RJP
37LD320H
2 0 1 0 . 1 2 . 2 2
I R / R J P
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.
0
R1420BLAN
SPI_DIN
0 1 1 : J 2 0
0
R1441
BLAN
5.6V
D1407
OPT
0
R1490
OPT
MLB-201209-0120P-N2
L1404
BLAN
0
R1430 OPT
b_com_PWCTRL
011:AM20
BEXT_IR_MODEM
011:U8
SPI_DIN
0 1 1 : A J 1 4
0
R1440
BLAN
0
R1454BLAN
+5V_ST
100uF
16V
16V
C1413
BLAN
bLAN_IR_IN_MODEM
016:AN12
0
R1414
BLAN
b_SPI_CLOCK
016:AM23
BEXT_Game_Control_Latch
011:U9
0
R1419 OPT
2SC3875S(ALY)
Q1470
BLAN
E
B
C
MJ-623PT-6-S-SD
JK1401
BLAN
1
2
3
4
5
6
7
0
R1452 OPT
0 . 1 u F
C1415
BLAN
0
RJ12_MPI
R615
0
R2530
BLAN
47K
R1487
BLAN
47uF
25V
25V
C1481
BLAN
0
R1435BLAN
0
R2519
BLAN
10K
R1486
BLAN
+5V_ST_PTC
0
R1484
BLAN
MLB-201209-0120P-N2
L1470
BLAN
MLB-201209-0120P-N2
L1402
BLAN
0
R1428 OPT
BEXT_5V
0
R1442BLAN
b_MPI_DIN
0 1 6 : A I 1 9
b_SPI_DIN
016:AM22
0
R1450BLAN
3.3K
R1472
R1472
BLAN
2.2K
R1493
0
R1491
10K
R1481
BLAN
0
R1413
BLAN
BEXT_MPI_OUT
011:V11
MPI_DOUT
0 1 1 : A J 7
0
R1431BLAN
RJ12_IR_MPI_MODEM
016:AN15
220pF
C600
RJ12_MPI
+5V_ST_PTC
bLAN_POWER_MANAGE
0 1 6 : N 1 7 ; 0 1 1 : V 2 4
0
R1451BLAN
+12V_C_MPI
0
RJ12_MPI
R614
0
R2529
BLAN
1/10W
3.3K
5%
R1474
BLAN
47K
R1485
BLAN
47K
R1488
BLAN
BEXT_Game_Control_Latch
0 1 1 : J 1 7
2SC3875S(ALY)
Q1480
BLAN
E
B
C
220pF
C601
RJ12_MPI
0
R1436 OPT
1W
200
R1473
BLAN
BEXT_MPI_OUT
0 1 1 : J 1 8
0
R1400BLAN
+5V_ST_PTC
JP1483
SPI_CLOCK
0 1 1 : A J 1 3
2SC3875S(ALY)
Q1481
BLAN
E
B
C
5.6V
D1404
OPT
0 . 2 2 u F
50V
50V
C1412
BLAN
b_MPI_DOUT
016:AN18
SPI_CLOCK
0 1 1 : J 1 9
0
R1422BLAN
b_com_PWCTRL
0 1 1 : I 2 1
0
R1401BLAN
0
R1438BLAN
+5V_ST_PTC
MLB-201209-0120P-N2
L1403
BLAN
GND
+5V_ST_PTC
P E J 0 2 7 - 0 1
JK6001
BLAN_Sn
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
0
R1416
BLAN
+12V_C
SI4925BDY
Q1482
BLAN_VISHAY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
5.6V
D1401
OPT
BEXT_IR_MODEM
0 1 1 : J 1 7
GND
10K
OPT
R1411
0
R1429 OPT
+5V_ST
0
R1449BLAN
GND
0
RJ12_MPI
R613
22K
R1489
OPT
5.6V
D1406
OPT
47K
R1480
BLAN
0
R1421 OPT
SPI_DOUT
011:AD13
22uF
25V
C1484
BLAN
2 . 2 u F
25V
C1482
BLAN
0
R1437BLAN
0
R1410
BLAN
1/10W
10K
5%
R1470
BLAN
2N3906S-RTK
Q1471
Q1471
BLAN
E
B
C
BEXT_MPI_DIN
0 1 1 : J 1 8
+5V_BLAN
+5V_ST_PTC
b_SPI_DOUT
016:AM22
0
R1423BLAN
+12V_C
0
R1407
BLAN
0
R1448BLAN
10K
R1412
BLAN
220pF
50V
50V
C1470
BLAN
BEXT_5V
YFDW254-06S
P1400
BLAN
4
3
2
6
1
5
10K
OPT
R1424
220pF
C602
RJ12_MPI
0
R1415
BLAN
bLAN_POWER_MANAGE
0 1 6 : N 1 7 ; 0 1 1 : T 2 0
HEF4053B
IC1401
BLAN
3
Y1C
2
Y0B
4
ZC
1
Y1B
6
E
5
Y0C
7
VEE
8
VSS
9
SC
10
SB
11
SA
12
Y0A
13
Y1A
14
ZA
15
ZB
16
VDD
2 . 2 u F
25V
C1480
BLAN
0
R1426BLAN
100uF
16V
16V
C1483
BLAN
0
R1443
BLAN
MLB-201209-0120P-N2
L1401
BLAN
+5V_BLAN
0
RJ12_MPI
R616
22K
R1492
BLAN
47K
R1482
OPT
0
R1427BLAN
5.6V
D1403
OPT
0 . 1 u F
C1414
BLAN
MPI_DOUT
0 1 1 : I 2 1
TMMB-H001P(W/O Tuner)
TU1002
BLAN
1
RF_OUT[NC]
2
GND_1
3
+3.3V
4
TSCL
5
TSDA
6
GND_2
7
IF_AGC
8
DIF-P
9
DIF-N
10
+5V
11
GND_3
12
J P 2 - P 1
13
J P 2 - P 4
14
J 1 - P 2
15
J 1 - P 3
16
J 1 - P 4
17
J 1 - P 5
18
PTS
19
J P 1 - P 3
20
J P 1 - P 4
21
J P 1 - P 5
22
J P 1 - P 6
23
J P 1 - P 7
24
J P 1 - P 1 0
25
J 2 - P 1
26
J 2 - P 2
27
J 2 - P 3
28
J 2 - P 4
29
J 2 - P 6
30
SHIELD
5.6V
D1405
OPT
0
R1406 BLAN
BEXT_MPI_DIN
011:V10
0
R1434 OPT
MPI_DIN
0 1 1 : I 2 1
0
R1439
BLAN
MPI_DIN
011:AD6
0
R1417
BLAN
30V
D1408
OPT
5.6V
D1400
OPT
+12V_C_MPI
0
R1425BLAN
+5V_ST_PTC
SPI_DOUT
0 1 1 : J 2 0
HEF4053B
IC1400
BLAN
3
Y1C
2
Y0B
4
ZC
1
Y1B
6
E
5
Y0C
7
VEE
8
VSS
9
SC
10
SB
11
SA
12
Y0A
13
Y1A
14
ZA
15
ZB
16
VDD
BEXT_5V
10K
R1432
BLAN
0
R1453BLAN
5.6V
D1402
OPT
RJ12_MPI_DOUT
016:AH11
100uF
16V
16V
C1411
BLAN
RJ12_MPI_DIN
0 1 6 : A I 8
10K
R618
RJ12_MPI
0
R1418
BLAN
MLB-201209-0120P-N2
L1405
BLAN
22K
R1483
OPT
1W
200
R1471
BLAN
MJ-623PT-6-S-SD
RJ12_MPI
JK1401-*1
1
2
3
4
5
6
7
AO4813
Q1482-*1
BLAN_AOS
3
S1
2
G2
4
G1
1
S2
5
D1_1
6
D1_2
7
D2_1
8
D2_2
P E J 0 2 7 - 0 4
JK6001-*1
BLAN_Au
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
SPI_DIN
11
37LD320H
B - l a n
2 0 1 0 . 1 2 . 2 2
IR_OUT
BLAN CHECK
GND
12V_JIG
MPI_DOUT
BLAN CHECK
MPI_DIN
f o r b _ L A N J I G t e s t
R J 1 2 _ M P I o p t i o n : u s i n g N o b - l a n s t a t u s
p o w e r c o n t r o l
NC
5V
5VST_JIG
M P I _ 5 V o r 1 2 V ( P I N 3 ) S e l e c t C o n t r o l f r o m b - L A N
MPI_5V or 12V
5VST_JIG
BLAN CHECK
b_LAN MPI pin3
BLAN CHECK
5VST_JIG
BLAN CHECK
BLAN CHECK
B-LAN POWER
5VST_JIG
POWER LINE
5VST_JIG
B-LAN
Normal MPI JACK
b_LAN Game control JACK
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.
OPT
OPT
C1125
DSUB_R-
5.6V
OPT
OPT
D1116
+3.3V_Normal
18pF
50V
C1127
10K
R1142
30V
D1113
15K
R1108
DSUB_G-
5.6V
D1117
30V
D1110
EDID_WP
5.6V
OPT
D1114
DSUB_G+
100pF
50V
50V
C1108
68pF
50V
50V
OPT
C1126
30V
D1111
DSUB_HSYNC
18pF
50V
C1128
RGB_DDC_SCL
0
R1138
15K
R1107
0
R1136
470K
R1103
PC_R_IN
0 0 2 : S 1 2
4.7K
R1140
DSUB_R+
10K
R1111
AMOTECH
5.6V
OPT
D1101
470K
R1102
DSUB_B-
AT24C02BN-SH-T
IC1105
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
0 . 1 u F
16V
C1129
4.7K
R1139
1K
R1147
OPT
OPT
OPT
C1123
RGB_DDC_SDA
DSUB_B+
DSUB_VSYNC
30V
D1109
10K
R1110
100pF
50V
C1107
AMOTECH
5.6V
OPT
D1102
OPT
OPT
C1124
68pF
50V
50V
OPT
C1122
+5V_Normal
22
R1143
ENKMC2838-T112
D1115
A1
C
A2
PC_L_IN
0 0 2 : S 1 2
0
R1134
DSUB_DET
30V
D1112
0
R1148
0
R1150
10K
R1146
22
R1141
75
R1133
75
R1135
75
R1137
0
R1112
0
R1113
15pF
50V
50V
C1130
9.1K
R1130
2SC3875S(ALY)
Q1116
E
B
C
CB3216PA501E
L1100
OPT
R1129
3.3K
R1125
1.6K
R1118
6.8K
OPT
R1127
0 . 1 u F
OPT
C1132
1uF
50V
50V
C1136
0
R1122
2SC3052
Q1118
E
B
C
0
R1145
1uF
10V
10V
OPT
C1137
10uF
16V
16V
C1134
1K
R1116
10uF
6.3V
C1131
+5V_Normal
1uF
10V
C1133
2SA1530A-T112-1R
Q1117
E
B
C
4.7K
R1131
R1131
EXT_SPK_L+
009:X24
390
R1117
TPA6011A4PWPRG4
IC1100
3
PVDD_1
2
ROUT-
4
RHPIN
1
PGND_1
6
RIN
5
RLINEIN
7
VDD
8
LIN
9
LLINEIN
10
LHPIN
11
PVDD_2
12
LOUT-
13
PGND_2
14
LOUT+
15
SHUTDOWN
16
FADE
17
BYPASS
18
AGND
19
SEMAX
20
SEDIFF
21
VOLUME
22
HP/LINE
23
SE/BTL
24
ROUT+
EXT_SPK_L-
009:H20
EXT_SPK_L-
009:X24
SUB_MUTE
009:U20;016:AE15
1K
R1119
OPT
R1121
0 . 1 u F
C1135
EXT_SPK_L+
009:O20
4.7K
R1132
OPT
R1126
1K
R1124
0
R1144
EXT_SPK
002:V11
SUB_MUTE
009:R25;016:AE15
100
R1128
3K
R1115
OPT
R1120
10K
R1114
100
R1123
1uF
10V
10V
OPT
C1138
+5V_Normal
AT24C02C-SSHM-T
IC1105-*1
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
P E J 0 2 7 - 0 1
JK1102
Sn
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
SPG09-DB-010
P1103
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
P E J 0 2 7 - 0 1
JK1100
Sn
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
P E J 0 2 7 - 0 4
JK1100-*1
Au
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
P E J 0 2 7 - 0 4
JK1102-*1
Au
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
PC AUDIO
RGB PC (250 APPLY)
9
EXTERNAL SPEAKER OUT
37LD320H
E x t e r n a l s p e a k e r
2 0 1 0 . 1 2 . 2 2
Click on the first or last page to see other 37LD340H / 37LD345H (CHASSIS:LA06G) service manuals if exist.