![background image](http://html.mh-extra.com/html/sharp/lc-20dv20u/lc-20dv20u_service-manual_373836081.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
Q2302
2SA2048
CD LD CTL
Q2301
2SA1036K
DVD LD CTL
Q2303
KTC3875S_Y_RTK
VR_DVD
Q2304
KTC3875S_Y_RTK
DVD/CD SW
Q2305
KTC3875S_Y_RTK
VR_CD
CP2301_1
LD07T2-24ND-03
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
3
4
5
6
7
8
9
CP2302
00_6232_005_
1
2
3
4
5
IC2301
LA6565VR-TLM-E
MOTOR DRIVE IC
1
10
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
5
6
7
8
9
CP2303
00_6232_006_
1
2
3
4
5
6
D2304
1SS355
D2303
1SS355
C2357
100P
CH
C2358
100P
CH
C2359
100P
CH
C2360
100P
CH
C2306
0.1
F
C2313
0.1 B
C2301
0.1
F
C2307
0.1 B
C2326
0.1
F
C2348
0.1
B
C2332
0.1
F
C2347
0.1
F
C2331
0.1 B
C2317
0.1
F
C2350
0.1 B
C2309
0.1
F
C2318
0.001
B
C2303
0.1 B
C2302
0.1 B
C2365
0.1
B
C2304
0.022
B
C2305
0.1
B
C2341_1
100
10V
YK
C2329_1
47
6.3V
KA
C2314_1
100
10V
YK
C2310_1
100
10V
YK
C2327_1
47
6.3V
KA
C2328_1
47
6.3V
KA
C2346_1
47
6.3V
KA
C2340_1
100
10V
YK
C2316_1
47
6.3V
KA
R2353
100
R2352
100
R2322
27K
R2361
10K
R2349
100
R2342
4.7K
R2340
6.8
R2333
220
R2341
6.8
R2350
4.7K
R2335
3.3K
R2358
120
R2357
1K
R2324
1K
R2334
10K
R2319
33K
R2332
220
R2318
6.8
R2306
6.8
R2347
3.3K
R2346
3.3K
R2360
33
R2336
390 R2339
1.2K
R2337
10K
R2301
1K
R2313
4.7K
R2326
5.6K
R2327
4.7K
R2304
2.2
R2303
2.2
R2323
1.2
R2329
1.2
R2328
4.7K
R2325
6.8K
R2302
100
+-1%
R2330
1K
R2320
4.7K
R2338
4.7K
R2307
75K
R2308
10K
R2309
100
+-1%
R2310
4.7K
R2305
27K
R2321
15K
R2355
1K
R2348
3.3K
R2359
82
R2356
82
B2305
MMZ1608R102CT
B2302
MMZ1608R102CT
B2301
MMZ1608R102CT
B2304
MMZ1608R102CT
W809
W861
W843
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
TP2305
TP2304
TP2303
TP2306
JG019
TP2308
TP2313
TP2315
TP2314
TP2320
JG014
JG015
JG016
JG040
JG013
JG011
JG010
JG056
JG018
JG017
JG012
TP2307
TP2318
JG057
TP2317
TP2316
TP2324
TP2323
TP2309
TP2310
TP2311
TP2312
JG026
JG025
JG027
JG034
JG035
JG037
JG036
TP2322
TP2319
JG058
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
VC
DVD/CDPD
DVD_CD
DVD_LD
DVD/CDPD
CD_LD
DVD_CD
DVD_LD
CD_LD
RF
OPU_A
OPU_B
OPU_C
OPU_D
OPU_E
OPU_F
VC
HOME
GND
OPU_F
OPU_VREF
TOUT_SW
TIN_SW
OPU_E
RF_A5V
P.CON+A5V_D
OPU_D
TRACK_PWM
OPU_C
FOCUS_PWM
DVD/CD
P.CON+3.3V_D
RF
VDDPWM3.3V
OPU_B
DRVSB
OPU_A
DVD/VR
SPINDLE_PWM
SLED_PWM
TRACK_PWM
CDLD
SP
FOCUS_PWM
SPDL_SENS-
DVDLD
TRAY_CLOSE
TRAY_OPEN
TR+
TR-
FO+
FO-
DVDLD
TIN_SW
UNREG+12V_D
TIN_SW
CDLD
TOUT_SW
UNREG+12V_D
MOT_LD-
P.CON+A5V_D
P.CON+6V_D
P.CON+3.3V_D
P.CON+3.3V_D
GND
HOME
MOT_SLED-
M
MOT_SPDL-
M
M
MOT_SLED-
MOT_SPDL-
M
MOT_LD-
TR+
TR-
FO+
FO-
PCB130
DMF066
H-58
H-57
(DVD MT PCB)
(D_GND)
SLD+
SLD-
LIMIT SW
SW(GND)
3.0
3.2
0
LD-
LD+
OPEN
CLOSE
GND(D)
FROM/TO LOADER
DSM2(06SD)
FROM/TO REGULATOR2
FROM/TO MPEG/MICON/DSP/RF_AMP
NC
NC
NC
NC
NC
NC
NC
NC
F RTN
T RTN
T DRV
F DRV
NC
GND
GND
VR(CD)
VR COM
VR(DVD)
LD(DVD)
LD(CD)
PD/GND
GND
F
Vref
VCC
E
SW1(DVD/CD)
VRF(RF_OUT)
D
C
B
A
VC2
FROM/TO AUDIO/VIDEO
SP1-
SP1+
(RF_GND)
1.9
2.3
2.6
0
0
0
0
0.7
0.7
(VR_CD/VR_DVD)
FWD
REV
VCC2
VLD-
VLD+
VD4+
VD4-
VD3+
VD3-
VD2+
VD2-
VD1-
VD1+
VCC1
VCCS
VIN1+A
VIN1-A
VIN 1
VO_OP
VIN3
VIN3-
VIN2
VIN2-
VIN2+
VIN-OP
VIN+OP
REG-IN
REG-OUT
VREF-OUT
VREF-IN
VIN4
VIN4-
MUTE234
MUTE1
VCONT
S-GND
NC
NC
NC
NC
NC
NC
PGND1
PGND2
(D_GND)
(D_GND)
(RF_GND)
(D_GND,M_GND)
(M_GND)
0
0
6.0
0
1.9
1.9
2.6
2.7
2.6
2.8
0
0
3.7
1.7
2.6
2.7
0
6.0
6.0
1.6
1.6
1.6
0
1.6
1.6
1.8
0
1.6
1.6
0
0
0
0
0
1.6
0
1.6
1.6
0
1.6
3.2
3.2
4.1
0
NC
NC
MOTOR DRIVE SCHEMATIC DIAGRAM
0
0
0.2