Opu & Motor Circuit Diagram - LG DP372B Service Manual

3. OPU & MOTOR CIRCUIT DIAGRAM
M5V
R453 R453
R447 R447
R450 R450
FB(50) FB(50) R407 R407 2K 1% 2K 1% R408 R408
L407 L407 L408 L408 BAT_OUT
3.3V C415 C415
Q408 Q408
1000pF 1000pF
R409 R409
47uH(LH) 47uH(LH) D D AO3409 AO3409
750 750
C418 C418
0.1uF 0.1uF + CE410 + CE410 D401 D401 G G
1
1N5819 1N5819 S S P-CHANNEL P-CHANNEL
220uF/10V 220uF/10V R427 R427
BAT_OUT
M5V
C420 C420
CE411 CE411 + +
100uF/25V 100uF/25V 0.1uF 0.1uF
M5V
C434 C434 C425 C425
0.1uF 0.1uF 0.1uF 0.1uF
L406 L406 LCD_3.3V
10uH 10uH
C428 C428
3.3V 0.1uF 0.1uF S3.3V
L411 L411 FB(50) FB(50)
C429 C429
C426 C426 + CE415 + CE415
0.1uF 0.1uF
EMC 0.1uF 0.1uF 47uF/6.3v 47uF/6.3v
R459 R459 100K 100K R458 R458 10K 10K VCC_5V
2N3904 2N3904
Q416 Q416
C C R456 R456
B B IOA
1 10K 10K
E E
Q418 Q418
2SK3018 2SK3018 R454 100K R454 100K
1 1
2SK3018 2SK3018
Q417 Q417
R457 R457 R455 R455
0 0
0 0
C413 C413
C431 C431
NC NC
NC NC
L412 L412 VCC_5V
47UH( 47UH(
C427 C427 CE416 CE416
+ +
0.1uF 0.1uF 100uF/10V 100uF/10V
J401 J401
GND
24
23 LD_DVD
22
21
MDI1
20
LD_CD
19
18 VR_DVD
VR_CD L413 L413
17
16
E 10uH 10uH 2
15
14
V20
13
1 3
C430 0.1uF C430 0.1uF
25 12
26 11 F B C E
B
10
2SB1132
9 A
RFO
8
2SB1132 2SB1132
IOA
7 1
6 D
C Q411 Q411
5
L414 L414
4 T-
T+ R421 R421 4.7 4.7
3
F+
2
F-
1
10uH 10uH R424 R424 4.7 4.7
HEADER 24 SMD0.5 TOP HEADER 24 SMD0.5 TOP
CON24_0.5MM CON24_0.5MM
2SB1132 2SB1132
MDI1
1
C436 C436
NC NC
Q414 Q414
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
BAT_OUT
STANDBY
10K 10K R460 R460 R402 R402 20K 20K
10K/NC 10K/NC
10K 10K R448 10K R448 10K
1.2K 1% 1.2K 1%
33 33
U401 U401 AM5898N AM5898N 0.1uF 0.1uF
C414 C414
1 34 V1P4
EN2 BIAS
R413 R413 C416 C416 68pF 68pF STBY R410 R410 10K 10K R411 R411 1.2K 1% 1.2K 1%
2 33
CT2 MUTE
680K 680K
3 32
COMP2 EN1
R415 R415 15 15 CT1 C417 68pF C417 68pF R416 R416 100 100
4 31
SW2 CT1
R423 R423 10K 10K R420 R420 680K 680K
5 30
IPK2 COMP1
0.1 1% 0.1 1% 6 29 R429 R429 15 15
PVCC1 SW1
R430 R430 0.11% 0.11%
7 28
PVCC2 IPK1
F+ 8 27
VOFC+ PGND2
F-
9 26
VOFC- PGND1
35 36
R431 R431
GND GND
750 750
10 25
VCC1 PGND
FOSO R433 R433 0 0
11 24
VINFC VCC2 M5V
DMSO R432 R432 10K 10K TRSO
12 23
VINSL+ VINTK BAT_OUT
R434 R434 0 0 FMSO
13 22
MGND VINSP
SP+ SL- CE413 CE413
14 21
VOSL+ VOSP-
SP- 15 20 SL+ 100uF/25V 100uF/25V
VOSL- VOSP+
16 19
MGND MGND
T- 17 18 T+
VOTK+ VOTK-
VCC_5V M5V
L405 L405
50 50
C433 C433 + CE402 + CE402
0.1uF 0.1uF
47uF/10V 47uF/10V
A+5V
L403 L403
50 50
C435 C435 + CE403 + CE403
0.1uF 0.1uF
47uF/10V 47uF/10V
5V Power for Video Buffer & Motor Driver & OPU
S3.3V
R461 R461
47K/NC 47K/NC
LDO2
CE417 CE417
220uF/6.3v 220uF/6.3v S3.3V
R449 R449
150K/NC 150K/NC
+ +
CE418 CE418
47uF/6.3v 47uF/6.3v SP-
LDO1 SP+
LIMIT
BAT_OUT
R405 R405
M5V
27K 27K
3906 3906
1
Q407 Q407 CT1
C C
B B Q409 Q409
1
2N3904 2N3904
E E
R426 R426 R422 R422
6.8K 6.8K
51K 51K
R418 R418 3.6K 1% 3.6K 1%
5VA
C412 C412 C422 C422 R443 R443
BAT_OUT
0/NC 0/NC
R442 R442 0.1uF 0.1uF 0.1uF 0.1uF
1
Q410 Q410 P-CHANNEL P-CHANNEL 0 0
AO3409 AO3409 FB(50) FB(50) EMC
L410 L410
L409 L409 AF2301P/RCR1521SI AF2301P/RCR1521SI
1000pF 1000pF 3
C419 C419 R439 R439 C411 C411
47uH(LH) 47uH(LH) C408 C408
CE412 CE412 C421 C421 0.1uF 0.1uF 20K 20K 1uF 1uF
+ +
+ + D402 D402 220uF/10V 220uF/10V
0.1uF 0.1uF
2N3904 2N3904
1N5819 1N5819
Q415 Q415
C C P-CHANNEL P-CHANNEL
STANDBY R437 R437 1 B B R438 20K R438 20K
C410 C410 4.7K 4.7K E E
0.1uF 0.1uF
L402 L402 10uH/NC 10uH/NC
A-5V
CE401 CE401
10uF/16V/NC 10uF/16V/NC
U402 U402
1
OUT
L401 L401 10uH/NC 10uH/NC 5
CFLY+
A+5V
2
IN
4
GND
3
CFLY-
CE404 CE404 + +
10uF/16V/NC 10uF/16V/NC
TPS60400/NC TPS60400/NC
C437 C437 105/NC 105/NC
SL-
SL+
J402 J402
2x1 W/HOUSING 2x1 W/HOUSING
CON2_2.0MM_DIP_B CON2_2.0MM_DIP_B
C423 C423 2200pF/NC 2200pF/NC
SP- R401 R401
R404 R404 680K/NC 680K/NC OPO
R425 R425
OP- 1R 1R
OP+
R406 R406 C402 C402 R451 R451 SP+ R428 R428 NC NC
SP-A
150K/NC 150K/NC R440 R440 0 0
2200pF/NC 2200pF/NC 680K/NC 680K/NC R441 R441
V1P4
OPEN OPEN
R452 R452
J403 J403
R412 1/NC R412 1/NC
SP-A
4
3
2
1
4x1 W/HOUSING 4x1 W/HOUSING
3-31 3-32
OFF-PAGE CONNECTION
VCC_5V
L404 L404
2
10uH 10uH
Q402 Q402 + + C409 C409
CE406 CE406 A-5V
A-5V 5
100uF/10V 100uF/10V 0.1uF 0.1uF 5VA
5VA 6,7
A+5V
A+5V 2,5
3.3V
3.3V 2,3,7,8
GND
GND 2,3,5,6,7
VCC_5V
VCC_5V 7
LCD_3.3V
LCD_3.3V 7
BAT_OUT
BAT_OUT 5,6,7
V20
V20 2
V1P4
V1P4 2
STBY
STBY 2
STANDBY
STANDBY 6
TRSO
TRSO 2
DMSO
DMSO 2
FOSO
FOSO 2
FMSO
FMSO 2
OP+
OP+ 2
OP-
OP- 2
OPO
OPO 2
LIMIT
LIMIT 2
LDO1
LDO1 2
LDO2
LDO2 2
IOA
IOA 2
A
A 2
B
B 2
C
C 2
D
D 2
E
E 2
F
F 2
RFO
RFO 2
MDI1
MDI1 2
SERVO I/F
10k 10k OP-
C401 C401
1 D403BAT54C D403BAT54C
0.1uF 0.1uF
S3.3V
2
C403 C403
3
0.1uF 0.1uF
OPO
10k 10k
LG & MALATA LG & MALATA LG & MALATA
04.OPU & MOTOR 04.OPU & MOTOR 04.OPU & MOTOR
Saturday, November 17, 2007 Saturday, November 17, 2007 Saturday, November 17, 2007
LGE Internal Use Only