LG DP450P Service Manual

3-33 3-34
Sunday, October 05, 2008
A_MUTE_SW SP_R-
4558_VCC2
SP_R-
SP_R+
4558_VCC1
R_SPEAKER
SP_L-
A_MUTE_SW
4558_VCC1
SP_R-
SP_L-
SP_L+
SP_R+
SP_R-
GND
SP_MUTE
SP_L-
AL
AR
SP_L-
SP_L+
AL
AR
A_MUTE_SW
A+5V
4558_VCC2
MR_OUT
R_SPEAKER
BAT_OUT
L_SPEAKER
CVBS
CVBS
A-5V
SP_MUTE
L_SPEAKER
4558_VCC2
ML_OUT
MR_OUT
A_MUTE_SW
ML_OUT
A_MUTE_SW
A-5V
A+5V
A+5V
A+5V
A+5V
AL 2
AR 2
A_MUTE_SW 6
SP_L- 7
SP_L+ 7
CVBS2
A+5V 4
GND 2,3,4,6,7,
SP_R-7
SP_R+7
BAT_OUT 4,6,7
A-5V 4
SP_MUTE6
POWER I/F
MPEG I/F
--> <-->
C504
56pF-103(EMC)
C504
56pF-103(EMC)
L509
FB(50)
L509
FB(50)
R546
NC
R546
NC
R514
100K
R514
100K
C507
1000pF
C507
1000pF
CE513 105CE513 105
+
CE503
1uF/50V
+
CE503
1uF/50V
12
R502 10KR502 10K
C515
NC
C515
NC
CE515 105CE515 105
R547
5.1K
R547
5.1K
C
BE
4.7K
2
1 3
Q806
DTC343TK
C
BE
4.7K
2
1 3
Q806
DTC343TK
R526
1K
R526
1K
R515
1K
R515
1K
+
-
U504B
TJM4558
+
-
U504B
TJM4558
5
6
7
8 4
C517
103
C517
103
R505
10K
R505
10K
R541
0
R541
0
C525
1000pF
C525
1000pF
CE510 10uF/16VCE510 10uF/16V
C508
680pF-103
C508
680pF-103
R540
100K
R540
100K
CE514 10uF/16VCE514 10uF/16V
+
CE508
10uF/16V
+
CE508
10uF/16V
1 2
C506
0.1uF
C506
0.1uF
R530
100
R530
100
R523 10KR523 10K
+
CE504
1uF/50V
+
CE504
1uF/50V
12
C503
103
C503
103
R506
1K
R506
1K
+ CE507
100uF/25V
+ CE507
100uF/25V
12
D501
LL4148
D501
LL4148
1 2
C530
100pF
C530
100pF
R536
75 1%
R536
75 1%
C509
103
C509
103
C512
0.1uF
C512
0.1uF
Q509
BAT54S
Q509
BAT54S
3
2
1
C516 100pFC516 100pF
L504
FB(50)
L504
FB(50)
B
C
E
Q503
2N3904
B
C
E
Q503
2N3904
1
3 2
R552
100K
R552
100K
L507
0603-10uH
L507
0603-10uH
C523
ESD(15pF)
C523
ESD(15pF)
R521
47K
R521
47K
TP502TP502 R529
4.7K
R529
4.7K
R512
4.7K
R512
4.7K
C511
NC
C511
NC
C513
680pF-103
C513
680pF-103
PT2303
U502
PT2303
PT2303
U502
PT2303
Shutdown
1
GND1
2
+IN2
9
VDD
4
-IN2
11
-IN1
6
GND2
7
+IN1
8
+OUT2
14
VREF
10
-OUT2
12
HP-IN
16
VDD
13
-OUT1
5
GND3
15
+OUT1
3
C
BE
4.7K
2
1 3
Q805
DTC343TK
C
BE
4.7K
2
1 3
Q805
DTC343TK
R549
O
R549
O
R548
NC
R548
NC
R511
150
R511
150
L503
FB(50)
L503
FB(50)
TP506TP506
R551
O
R551
O
L512
FB(600)
L512
FB(600)
+
CE509
10uF/16V
+
CE509
10uF/16V
1 2
C502
100pF
C502
100pF
C518
103
C518
103
R534
150
R534
150
TP501TP501
+
CE502
100uF/10V
+
CE502
100uF/10V
1 2
R544
30K
R544
30K
J510
PJ-3513B-3531
J510
PJ-3513B-3531
1
1
2
2
3
3
4
4
5
5
6
6
R516
10K
R516
10K
R537
0
R537
0
L515
0R
L515
0R
R509
30K
R509
30K
C522
ESD(15pF/56P)
C522
ESD(15pF/56P)
R519
10K
R519
10K
B
C
E
Q501
2N3904
B
C
E
Q501
2N3904
1
3 2
L505
1.8uH
L505
1.8uH
VR501
VOLUME
VR501
VOLUME
1
1
2
2
3
3
4
4
5
5
6
6
7
7
L513
FB(600)
L513
FB(600)
+
CE501
100uF/10V
+
CE501
100uF/10V
1 2
R528
5.1K
R528
5.1K
+
CE505
1uF/50V
+
CE505
1uF/50V
12
R532
10K
R532
10K
C514
104
C514
104
R504
10K
R504
10K
C520
10P/NC
C520
10P/NC
L516
0R
L516
0R
C526
56pF-103EMC)
C526
56pF-103EMC)
C519
0.1uF
C519
0.1uF
+
CE506
22uF/16V
+
CE506
22uF/16V
12
C505
100pF
C505
100pF
R510
100
R510
100
R517
1K
R517
1K
R533
10R
R533
10R
L508
0603-10uH
L508
0603-10uH
R535
10K
R535
10K
+
-
U504A
TJM4558
+
-
U504A
TJM4558
3
2
1
8 4
C510 100pFC510 100pF
R525
10K
R525
10K
L514
10uH
L514
10uH
R508
100K
R508
100K
+
CE517
47uF/10V
+
CE517
47uF/10V
1 2
R542
47K
R542
47K
J506
CKX-3.5-02
J506
CKX-3.5-02
5
4
3
2
1
OFF-PAGE CONNECTION
4. AV CIRCUIT DIAGRAM

LG DP450P Specifications

General

Brand	LG
Model	DP450P
Category	Portable DVD Player
Language	English