![background image](http://html.mh-extra.com/html/sharp/lc-20dv20u/lc-20dv20u_service-manual_373836078.webp)
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
C4011_1
100
10V
YK
C4083_1
100
10V
YK
C4078_1
100
10V
YK
IC4001
ZR36862PQCG-B
MPEG/MICON/DSP/RF_AMP IC
101 102 103 104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
1
54
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
1
10
100
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
43
44
45
46
47
48
49
5
50
51
52
53 54 55 56 57 58 59
6
60 61 62 63 64 65 66 67 68 69
7
70 71 72 73 74 75 76 77 78 79
8
80 81 82 83 84 85 86 87 88 89
9
90 91 92 93 94 95 96 97 98 99
D4002
1SS355
D4005
1SS355
D4003
1SS355
D4008
1SS355
C4079
100P CH
C4012
0.1
F
C4026
0.1 F
C4001
0.0039
B
C4056
0.027
B
C4072
0.1
F
C4076
0.1
F
C4091
100P
CH
C4035
15P CH
C4034
6P CH
C4024
0.1
F
C4025
0.1
F
C4020
0.1
F
C4019
0.1
F
C4023
0.1
F
C4018
0.1
F
C4082
0.1
F
C4022
0.1
F
C4008
0.1
F
C4010
0.1
F
C4013
0.1
F
C4014
0.1 F
C4016 0.1 F
C4017 0.1 F
C4031
0.01 B
C4081
0.1 F
C4098
10P CH
C4030
0.1
F
C4029 0.1 F
C4088
0.1
F
C4007
0.1
F
C4085
0.001
B
C4086
0.001
B
C4003
0.027
B
C4057
180P
CH
C4033
0.1
F
C4002
0.1
F
C4096
0.001
B
C4032
0.001
B
C4004
0.1
F
C4077
0.1
F
C4027 0.1 F
C4028
0.1 F
C4105
10P
CH
C4038
0.01 B
C4075
0.1
F
C4068
100
6.3V
KA
C4067_1
47
6.3V
KA
C4070
220
6.3V
KA
C4071_1
47
6.3V
KA
C4069_1
47
6.3V
KA
R4045
4.7K
R4067
10K
R4016
100
R4052
4.7K
R4065
4.7K
R4078
4.7K
R4089
4.7K
R4086
75
+-1%
R4002
75
+-1%
R4003
75
+-1%
R4004
75
+-1%
R4005
75
+-1%
R4001
390
+-1%
R4012
1M
R4024
4.7K
R4014
4.7K
R4059
100
R4008
100
R4064
100
R4054
1K
R4053
1K
R4042
100
R4060
11K
R4061
11K
R4063
15K
R4058
220
R4020
33
R4021
33
R4019
33
R4018
4.7K
R4023
4.7K
R4072
33
R4036
4.7K
R4037
4.7K
R4038
4.7K
R4039
4.7K
R4062
39K
R4043
10K
+-1%
R4022
10K
+-1%
R4071
150
R4087
4.7K
R4032
4.7K
R4051
4.7K
R4025 220
R4027
220
R4026 220
B4010
MMZ1608R102CT
B4015
MMZ1608R102CT
B4011
MMZ1608R102CT
B4009
MMZ1608R102CT
B4014
MMZ1608R102CT
B4012
MMZ1608R102CT
B4013
MMZ1608R102CT
B4003
MMZ1608R102CT
B4005
MMZ1608R102CT
B4006
MMZ1608R102CT
B4002
MMZ1608R102CT
B4016
MMZ1608R102CT
B4018
MMZ1608R102CT
B4004
MMZ1608R102CT
B4001
MMZ1608R102CT
W827
W817
W810
W859
W842
W836
W840
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
DURING PLAYBACK.
MEASURED WITH THE DIGITAL TESTER
NOTE:THE DC VOLTAGE EACH PART WAS
JG024
JG020
TP4009
TP4008
TP4007
JG022
JG023
TP4005
TP4006
TP4004
TP4010
TP4017
TP4018
JG028
JG002
JG003
JG004
JG005
JG007
JG008
JG009
JG001
JG006
JG021
TP4026
JG032
TP4025
JG030
JG029
X4001
100GT02720
27MHz
VC
RF
OPU_F
OPU_E
OPU_D
OPU_C
OPU_B
OPU_A
DUPTD1
DUPRD1
DUPTD0
DUPRD0
DVD_CD
TOUT_SW
TIN
DRVSB
DVD_LD
CD_LD
DVD/CDPD
DVD/CDPD
SP
SPDL_SENS-
SLED_PWM
FOCUS_PWM
TRACK_PWM
TRAY_OPEN
TRAY_CLOSE
SYS_MUTE
SPINDLE_PWM
DAC_VIDEO_C
RX/RDY[I/O[0]]
DAC_VIDEO_B
ASDATA0
BOOT2
IRRCV
FPCSTRB
ABCLK
ALRCLK
BOOT1
DUPTD1
AMCLK
DUPTD1
MD
MC
DUPRD1
ML
DUPTD0
RESET
SPDIF
DUPRD0
DUPRD1
P.CON+5V_D
RX/RDY[I/O[0]]
P.CON+3.3V_D
RFINN
RFINP
FS1
FS2
SGND
FACT_OFFSET
TACT_OFFSET
VDDAFERF
+1.8V
+3.3V
VDDPWM3.3V
TRAY_OPEN
TRAY_CLOSE
HOME
HA0
TOUT_SW
HA1
TIN
TIN_SW
HA2
DVD_CD
HA3
HA15
DAC_VIDEO_C
DRVSB
HA4
RF
HA5
HA16
DAC_VIDEO_B
OPU_A
HA6
HA14
DAC_VIDEO_D
OPU_B
HA7
HA13
OPU_C
HA8
HA12
DAC_VIDEO_E
OPU_D
HA9
OPU_E
HA10
HD15
OPU_F
HA11
HA11
VC
HA12
HD7
SPDL_SENS-
HA13
RESET
SP
HA14
DVD/CDPD
HA15
HA10
P-H/I-L
DVD_LD
HA16
HD14
CD_LD
HA17
HA9
SPINDLE_PWM
HA18
HD6
SLED_PWM
HA19
TRACK_PWM
HA8
FOCUS_PWM
HD0
HD13
GND
HD1
HD5
HD2
HOME
HOME
HD3
HD4
PM16
HD5
HD12
HD6
WR
ML
HD7
HD4
I2C_CLK
MC
HD8
HD9
I2C_DAT
MD
HD10
HD11
HD11
HD3
D1_2
HD12
HA19
D1_1
HD13
HD14
SYS_MUTE
HD15
HD10
HA18
MEMCS0
RD
WR
HD2
SD_A0
HA17
SD_A1
HD9
SD_A2
HA7
SD_A3
SD_A4
HD1
SD_A5
HA6
SD_A6
HD8
IAMCLK
AMCLK
SD_A7
HA5
SD_A8
SD_A9
IABCLK
ABCLK
P.CON+3.3V_D
SD_A10
HD0
IALRCLK
ALRCLK
P.CON+5V_D
HA4
SD_D0
P.CON+1.8V_D
RD
ASDATA0
SD_D1
SD_D2
HA3
GND
SD_D3
HA2
SD_D4
MEMCS0
SPDIF
SD_D5
HA1
MIC_ON
SD_D6
SD_D7
HA0
SD_D8
SD_D9
SD_D10
SD_D11
SD_D12
SD_D13
SD_D14
SD_D15
RAMCS0#
RAMRAS#
RAMCAS#
SD_BA0
RAMDQM
RAMWE#
RAMCLK
RAMCKE
SD_A4
SD_A3
SD_A5
SD_A2
SD_A6
SD_A1
SD_A7
SD_A0
SD_A10
RAMCAS#
SD_D11
SD_D12
SD_D13
SD_D14
SD_D15
SD_D0
SD_A8
SD_A9
RAMCS0#
RAMRAS#
RAMWE#
RAMDQM
RAMCLK
SD_D10
SD_D5
SD_D4
SD_D3
SD_D2
SD_D1
SD_BA0
SD_D8
SD_D7
SD_D9
SD_D6
H-52
H-51
(DVD MT PCB)
FROM/TO REGULATOR2
FROM/TO MEMORY
(GND,D_GND)
FROM/TO MOTOR DRIVE
(RF_GND)
FROM/TO AUDIO/VIDEO
NC
NC
NC
NC
NC
NC
PCB130
DMF066
(D_GND)
NC
0.9
3.3
0
0
1.6
0
0
0
1.7
0
1.7
3.3
3.3
0.3
1.0
0
1.0
3.3
0
1.0
0.2
0
0.2
1.8
1.9
0
0.2
3.3
0
3.1
0.5
0
3.1
0.2
3.2
3.3
3.2
0
0
3.3
2.1
0
1.3
0.8
0.8
3.3
1.7
1.3
0.5
0
0.9
1.8
1.4
0
0.5
3.3
2.0
0.4
1.5
0
0.8
1.2
1.5
0
0
1.9
0
0
0
2.1
2.0
0
3.3
0.6
3.3
2.6
1.8
2.7
2.9
0
0
0.5
0
0
0.6
0
0.6
2.7
2.7
0.6
0.4
5.5
3.3
0.4
3.3
0
0
0
3.1
3.1
3.2
0
3.3
3.3
3.3
3.3
3.3
3.0
3.0
3.0
3.3
3.3
0
0.5
2.6
SSCRXD
GNDP
VDDC
GNDC
SPDIF
AOUT(2)
AOUT(0)
AOUT(1)
ABCLK
GNDP-A2
AMCLK
VDDP-A2
53
56
55
54
RAMADD(4)
RAMADD(3)
RAMADD(5)
RAMADD(2)
100
101
102
103
104
RAMDAT(14)
GNDP
RAMDAT(1)
RAMDAT(15)
RAMDAT(0)
157
160
159
158
MEMAD(5)
MEMDA(8)
MEMAD(6)
MEMDA(1)
MEMAD(7)
MEMDA(9)
MEMAD(17)
MEMDA(2)
GNDP
MEMAD(18)
MEMDA(10)
MEMAD(9)
MEMDA(6)
MEMAD(8)
MEMDA(5)
MEMDA(4)
VDDC
MEMWR#
MEMDA(12)
VDDP
MEMAD(20)
MEMDA(3)
GNDC
MEMAD(19)
MEMAD(15)
MEMAD(14)
MEMAD(13)
MEMAD(12)
MEMDA(15)
MEMAD(11)
MEMAD(10)
MEMDA(14)
GNDP
VDDP
MEMDA(0)
VDDP
MEMAD(0)
MEMAD(1)
MEMAD(2)
MEMAD(3)
MEMAD(4)
MEMRD#
GNDP
VDD-IP
VDDP
VDDP
RAMDAT(13)
RAMDAT(2)
RAMDAT(12)
RAMDAT(4)
RAMDAT(9)
RAMDAT(6)
VDDP
RAMDAT(10)
RAMDAT(5)
RAMDAT(11)
RAMWE#
RAMDQM
GNDPCLK
PCLK
VDDPCLK
RAMDAT(8)
GNDP
RAMDAT(7)
VDDP
VDDC
RAMADD(10)
RAMADD(9)
RAMADD(11)
RAMBA(0)
RAMCAS#
GNDP
VDDP
GNDC
RAMADD(0)
GNDP
RAMADD(8)
RAMADD(1)
RAMADD(7)
RAMADD(6)
VDDP
ICGPCI/O(0)
IDGPCI/O(0)
GNDP
VDDP
ALRCLK
GPAI/O
AIN
MEMAD(16)
MEMCS(1)
MEMDA(7)
MEMDA(13)
MEMDA(11)
MEMCS(0)#
RAMCS(1)#
RAMRAS#
GPCI/O(20)
RAMCS(0)# RAMBA(1)
VSYNC
HSYNC
GNDP
VDDP
IDGPCI/O(2)
GPCI/O(31)
GNDC
VDDC
VDDA
XO
RESET#
VDDP
GNDA
GNDP
GCLK
GNDDACD
GNDDACD
Y/C
CVBS/G/Y
VDDDAC
CVBS/C
Y/R/V
VDDDAC
C/B/U
RSET
GNDDACP
GNDDACBS2
RFP
RFN
G
A
AVDD1
B
SVDD
AVDD
C
H
D
J
AGND
E
K
F
VC
VBGAP
RESOUT
CD_MD
DVD_MD
CD_LD
DVD_LD
AGNDREF
AGND1
VDDC
GNDC
DJTO / GPCI/O(30) / VID(1)
DJTCK / ICGPCI/O(3) / VID(0)
DJTDI / GPCI/O(29) / VID(2)
DJTMS / GPCI/O(28) / VID(3)
GPCI/O(32)
ICGPCI/O(4)
ICGPCI/O(5)
VDDP
IDGPCI/O(3)
GNDP
ICGPI/O(6)
ICGPI/O(7)
VDD-IP
VDDPWM
GNDPWM
BOOTSEL1
BOOTSEL2
(MIC_DET)
(PM11)
(ICETMS)
(MUTEC)
(ICETDO)
(ICETCK)
(DJTDO)
(PM1)
ICGPCI/O(1)
ICGPCI/O(2)
GPCI/O(26)
IDGPI/O(1)
GPCI/O(27)
PWMCO(2)
PWMCO(3)
PWMCO(4)
PWMCO(0)
GPCI/O(46)
IDGPCI/O(4)
DUPRD0
DUPTD0
SPINDLEPULSE
SLEDPULSE
208
207
205
206
DUPRD1
DUPTD1
SSCCLK
SSCTXD
VDDPWM
(250mA)
(120mA)
(10mA)
(130mA)
(250mA)
RAMDAT(3)
1.5
3.3
3.3
3.3
3.3
3.3
3.3
1.8
0
0
3.3
3.3
3.3
3.3
3.3
0
0
0
0
1.6
1.8
1.6
1.6
1.6
1.6
1.6
0
0
1.6
3.3
3.3
3.3
0
2.1
2.3
1.3
1.3
0
0
0
0
0
3.3
3.3
3.3
0
3.3
3.3
0
0.2
0
1.8
3.3
(MUTE-L)
1.3
1.3
2.1
2.1
(DVD-L/CD-H)
3.3
1.7
1.7
2.3
3.3
1.7
3.3
3.3
3.3
2.1
2.1
2.1
2.1
2.1
2.1
2.1
2.0
0
0
1.6
1.1
3.3
0
0
VDDDAC
(D_GND)
0
0
0
0
0
3.2
3.2
1.2
0
0
3.3
3.3
MPEG/MICON/DSP/RF_AMP SCHEMATIC DIAGRAM
(VR_DVD)
(VR_CD)
(AFEGND)
(A_GND)
(A_GND)
(D_GND)
(RF_GND)
(10mA)
54
51
52
53