Main Circuit Diagrams - LG DP170 Service Manual

MAIN CIRCUIT DIAGRAMS

1. MAIN POWER CIRCUIT DIAGRAM
12
11 NAME TYPE
VCC Digital 5V
DV33 Digital 3.3V
RFV33 Servo 3.3V
AV33 Laser Diode 3.3V
10 V18 Digital 1.8V
SD33 Digital 3.3V
A+5V Audio +5V
A-5V Audio -5V
AVDD5 Audio 5V
DVDD3 Audio 3.3V
9
2 2
C C
SOT23
1 B E 3 1 B E 3
8
2N3906 2N3904
1D3
9V_IN
1 1
3
1CE5
1J1 1D4 1C14
2
220uF/25V 0.1uF
POWERJACK
7
OPEN(SMBJ26A)
6
5
4
1C27 OPEN(1uF)
1U5
1TP30 1TP31
1L3
DVD_5V A+5V
2
IN OUT
OPEN(10uH)
3
OPEN(TPS60400)
1CE16
OPEN(10uF/10V)
2
1
A B C D
DEVICE
1D1 SS24
SUPPLY
MT1389E
MT1389E
MT1389E
1TP2
BAT_OUT
SDRAM
1CE2 1C7
OP AMP.
100uF/25V
0.22uF(224)
OP AMP.
Audio DAC
Audio DAC
1D2
1TP5
BAT_OUT
1TP6
SS24 1CE4
BAT_OUT 100uF/25V
2
1C15 1C16
1CE7
1R10 47uF/25V 0.1uF 0.1uF
1TP10 12K
1TP11
1R11
6.2K
1R13
1U3A
47K
1TP16
LM393
1TP15 2
POWER_DET1
1
1TP18
3
1R16
2K
V+5V 1TP21
1TP22
1C22
1U3B
1R17 1R18 0.1uF
LM393
12K 47K
5 +
POWER_DET2 1TP26
7
6
-
1TP27
1TP32
1FB8 OPEN(50)
A-5V
1
1CE17 1TP34
1CE18
OPEN(10uF/10V)
220uF/10V
1TP36 STANDBY
1C32
0.1uF
E F G H
1C3 1C10
1L1
22uH
VCC_5V
1C1 1C3 0.22uF(224) 1C2 1CE1
103 0.22uF(224) 220uF/16V
1R1 100K
1U1
1C4 0.1uF
1 10
NC SS
2 9
BS EN
3 8 1C5 3.9nF 1R2 10K
NC COMP
4 7
IN FB
5 6
SW GND
1C6 OPEN
FB:0.92 V
MP1411
1R3 1R4 5.6K 1R5 39K
10K/1%
1TP3
1L2
SS24 22uH
VCC_3V3
1C8 1C9 1CE3
103
0.22uF(224) 220uF/6.3V
1U2
1C10 0.1uF
1 10
NC SS
STANDBY
2 9
BS EN
1C11 3.9nF 1R6 10K
3 8
NC COMP
4 7
IN FB
5 6
SW GND
1C13 1C12 OPEN
MP1411 FB:0.92 V
0.22uF(224)
1R7 1R8 2K 1R9
10K/1%
1TP7
1FB2
1Q1
AF2301P FB/1206
DVD_5V
1TP12 VCC_5V 3 2
1CE8 1C17 1R12 1CE9
1C18
100uF/16V 0.1uF 10K 100uF/16V
0.1uF
1TP17 POWER_DVD 1R15 1 1Q2 1R14
5.1K
1C20 2K 3904
0.1uF
1Q3
AF2301P
1TP23 VCC_3V3 DVD_3V3 1TP24
3 2
1CE12 1C23 1R19
10K 1C24
1CE13
100uF/16V 0.1uF
100uF/16V 0.1uF
1R20
POWER_DVD 1R21 1Q4 5.1K
1
1C26 2K 3904
0.1uF
1TP33
1Q5 1FB9
1L4 0805
AF2301P FB/1206
V+5V AUDIO_5V
VCC_5V 3 2 LCD_5V 1TP35
1C30 1R24 1C31 1CE19
1CE20
0.1uF 10K 0.1uF 100uF/10V
NC
1R26 1R25 5.1K
1 1Q6
2K 3904
I J K L
3-30 3-31
9V_IN 9V_IN 9
1TP1 BAT_OUT BAT_OUT 4,7,9
DVD_5V
DVD_5V 2,4
DV33
DV33 2
SD33
SD33 3
RFV33
RFV33
2
V18
V18 2
VCC_5V
VCC_5V 4,6
AUDIO_5V
AUDIO_5V 4,5,8
A+5V
A+5V 4
A-5V
A-5V 4
LCD_5V
LCD_5V 7
LCD_3V3
LCD_3V3 7
POWER_DET1 POWER_DET1 6
1TP4 POWER_DET2 POWER_DET2 6
STANDBY
STANDBY 6
POWER_DVD
POWER_DVD 4,6
VCC_3V3
VCC_3V3 6
GND
GND 2,3,4,5,6,7,8,9,10
DVD_3V3
DVD_3V3 2,3
24K
1TP8
1FB1 10uH
VCC_3V3 LCD_3V3 1TP9
1TP13
1FB3 50
1FB4 50
DV33
1TP14
1C19 1CE10
0.22uF(224) 100uF/6.3V
1TP19
DVD_3V3 1FB5 50 RFV33 1TP20
1C21 1CE11
0.22uF(224) 100uF/6.3V
1FB6 50
SD33 1TP25
1C25 1CE14
0.22uF(224) 100uF/6.3V
1U4
CM1117SCM223 1.8V 1FB7
SOT223 FB/1206
1TP29
V18
4 1TP28
TAB
DVD_3V3
3 2
IN OUT
+ 1CE15 1R22 1C29 + 1C28
100uF/6.3V 620 0.1uF 100uF/6.3V
1R23 330
INDEX&POWER
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