Toshiba MW27H62 Service Manual page 21

A B
8
DM3S
FROM/TO LOADER
CP2301
7 LD07T2-24ND-03
TR-
1 T-
TR+
2 T+
FO-
3 F-
FO+
4 F+
DVD/CDPD
5 MON(DVD)
6 NC(SW) NC
VR/DVD
7 VOL(DVD)
8 GND(DVD) JG056
DVDLD
9 LD(DVD)
CDLD
10 LD(CD)
R2359
VR/CD
11 VOL(CD)
12 GND(CD)
6
DVD/CDPD
13 MON(COM)
DVD_CD
14 DVD_CD
JG016
RF
15 RF
JG040
OPU_C
16 C
JG011
OPU_B
17 B
JG010
OPU_A
18 A
JG013
OPU_D
19 D
JG015
OPU_F
20 F
JG014
OPU_E
21 E
22 VCC
23 Vref
C2331 JG012
24 GND(PDIC)
5
0.1 F
C2315
0.1 F
TO LOADER OPU_VREF
CP2302
TP2303
00_6232_005_006_800+
C2328_1
MOT_LD-
5 LD-
MOT_LD+ 6.3V
4 LD+
R2353
TOUT_SW
3 OPEN
C2348 1 B
100
2 GND(D)
R2352
TIN_SW
1 CLOSE
100
TP2305
TP2304
4
P.CON+3.3V
FROM/TO LOADER
CP2303
00_6232_006_006_800+
TP2306
6 SW(GND)
R2349
HOME
3
5 LIMIT SW
100
MOT_SLED-
4 SLD-
MOT_SLED+
3 SLD+
MOT_SPDL-
2 SP1-
MOT_SPDL+
1 SP1+
2
1
A B
G-5
C
VR DVD
82 JG017 JG018
Q2303
VR DVD 0
2SC3052
R2346
Q2305
R2306
2SC3052
0 0.7
3.3K
0.1
R2318 6.8
R2348
0.1 6.8
3.3K
4.5
0
DVD LD
0.1
R2332
R2347 CTL 3.9
0.7
Q2301
DVD/CD 220
3.3K
KTA1505S-Y-RTK/P
0
Q2304 1.0
TP2307
2SC3052
C2340_1
B2301
6.3V 100 KA
MMZ1608R102CT
B2302
C2341_1
TP2308
MMZ1608R102CT
CD LD CTL 6.3V 100 KA
1.0
R2333
Q2302 3.9
KTA1544T-RTK/P
220
4.5
R2340
R2341 6.8
47 KA JG019 6.8
C
D E
MOTOR DRIVE SCHEMATIC DIAGRAM
(DVD MT PCB)
(RF_GND)
RF_A5V
TRACK_PWM
FOCUS_PWM
R2313
4.7K
R2320
R2310 4.7K
R2338 4.7K
4.7K
NC NC NC NC
4.1 3.1 3.1 1.6 0 1.6 1.6 1.5 0 0
0
44 43 42 41 40 39 38 37 36 35 34 33
1 2 3 4 5 6 7 8 9 10 11 12
0 0 6.0 0 1.0 1.0 2.7 2.6 2.6 2.8 0 0
NC
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
MMZ1608R102CT
B2303
MMZ1608R102CT
B2303 short --- +3.3V
VC2
NC NC NC
0 1.6 0 1.6 1.6 0 1.9 1.6 1.6 0
32 31 30 29 28 27 26 25 24 23
13 14 15 16 17 18 19 20 21 22
3.3 1.8 2.7 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/CD
DVD_LD
CD_LD
DVD/CDPD
RF
OPU_A
OPU_B
OPU_C
OPU_D
7
OPU_E
OPU_F
VC
HOME
GND (RF_GND)
GND (D_GND)
TOUT_SW
TIN_SW
P.CON+A5V
TRACK_PWM
FOCUS_PWM
P.CON+3.3V
VDDPWM3.3V
DRVSB
6
SPINDLE_PWM
SLED_PWM
VCC+6V
SPDL_SENS+
TP2323
SPDL_SENS-
TRAY_CLOSE
TP2324
TRAY_OPEN
R2339
M_GND
1.2K (M_GND)
5
4
3
2
1
PCB130
DMF070
H
G-6