Sharp LC-20DV20U Service Manual page 81

Lcd color television/ dvd video player
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A
B
8
C2350
0.1 B
DSM2(06SD)
C2329_1
FROM/TO LOADER
7
6.3V
47
KA
CP2301_1
LD07T2-24ND-03
C2331
1
GND
JG015
0.1 B
OPU_F
2
F
OPU_VREF
3
Vref
JG012
JG026
4
VCC
JG014
OPU_E
5
E
JG013
OPU_D
6
D
JG040
OPU_C
7
C
JG025
DVD/CD
8
SW1(DVD/CD)
JG016
RF
9
VRF(RF_OUT)
JG011
OPU_B
10
B
JG010
6
OPU_A
11
A
DVD/VR
JG027
12
VR(DVD)
13
VR COM
JG034
14
VR(CD)
15
GND
JG035
CDLD
16
LD(CD)
JG036
17
PD/GND
JG037
DVDLD
18
LD(DVD)
19
GND
JG056
20
NC
NC
TP2309
TR+
21
T DRV
TP2310
TR-
22
T RTN
TP2311
5
FO+
23
F DRV
TP2312
FO-
24
F RTN
DVDLD
UNREG+12V_D
TP2305
TP2303
TP2304
CP2302
00_6232_005_006_800+
R2352
TIN_SW
5
CLOSE
100
4
OPEN
CDLD
R2353
3
GND(D)
TOUT_SW
2
LD-
100
1
LD+
4
MOT_LD-
MOT_LD+
P.CON+3.3V_D
TP2306
CP2303
00_6232_006_006_800+
MMZ1608R102CT
6
SW(GND)
R2349
HOME
5
LIMIT SW
100
MOT_SLED-
4
SLD-
MOT_SLED+
3
SLD+
MOT_SPDL-
2
SP1-
3
MOT_SPDL+
1
SP1+
2
1
CAUTION
:SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
A
B
H-57
C
MOTOR DRIVE SCHEMATIC DIAGRAM
VR_DVD
VR_CD
Q2303
Q2305
KTC3875S_Y_RTK
KTC3875S_Y_RTK
0
0.2
R2348
R2346
0
3.3K
3.3K
0
0
W843
0.7
0
R2347
0.7
DVD/CD SW
3.3K
Q2304
0
KTC3875S_Y_RTK
JG017
JG018
R2306
6.8
R2318
DVD LD CTL
6.8
Q2301
2.6
R2332
2SA1036K
1.9
220
2.3
B2301
TP2307
MMZ1608R102CT
C2340_1
10V
100
YK
C2341_1
B2302
10V
100
YK
0
MMZ1608R102CT
3.0
R2333
W809
CD LD CTL
Q2302
220
2SA2048
3.2
R2340
TP2308
6.8
R2341
6.8
JG019
B2305
(D_GND)
ARE
ATTENTION
:LES PIECES REPAREES PAR UN
ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
C
D
E
(DVD MT PCB)
(RF_GND)
(D_GND)
RF_A5V
TRACK_PWM
FOCUS_PWM
R2313
4.7K
R2320
4.7K
R2338
NC
NC
0
4.1
3.2
3.2
1.6
0
NC
1.6
1.6
0
1.6
0
NC
0
0
4.7K
44
43
42
41
40
39
38
37
36
35
34
33
32
1
2
3
4
5
6
7
8
9
10
11
12
13
0
0
6.0
0
NC
1.9
1.9
2.6
2.7
2.6
2.8
0
0
3.7
C2313
0.1 B
C2302
0.1 B
R2303
2.2
C2303
0.1 B
R2304
2.2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D
E
F
G
B2304
P.CON+A5V_D
MMZ1608R102CT
P.CON+3.3V_D
R2339
1.2K
R2310
4.7K
VC2
0
0
NC
1.6
1.6
0
NC
1.8
1.6
1.6
0
NC
31
30
29
28
27
26
25
24
23
(M_GND)
14
15
16
17
18
19
20
21
22
1.7
2.6
2.7
0
6.0
6.0
1.6
1.6
1.6
NC
R2325
6.8K
R2328
4.7K
R2357
1K
R2358
120
C2307
0.1 B
JG057
JG058
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
F
G
H
8
FROM/TO MPEG/MICON/DSP/RF_AMP
DVD/CDPD
DVD_CD
DVD_LD
CD_LD
RF
OPU_A
OPU_B
OPU_C
OPU_D
7
OPU_E
OPU_F
VC
HOME
GND
(RF_GND)
(D_GND)
TOUT_SW
TIN_SW
TRACK_PWM
FOCUS_PWM
VDDPWM3.3V
6
DRVSB
SPINDLE_PWM
SLED_PWM
SPDL_SENS+
SPDL_SENS-
TP2323
TRAY_CLOSE
TP2324
TRAY_OPEN
5
FROM/TO AUDIO/VIDEO
TIN_SW
FROM/TO REGULATOR2
UNREG+12V_D
4
P.CON+A5V_D
P.CON+6V_D
P.CON+3.3V_D
GND
(D_GND,M_GND)
3
2
1
PCB130
DMF066
H
H-58

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