Motor Drive - Toshiba MD9DN1 Service Manual

A B
8
7
6 TO LOADER
CP2302
00_6232_004_102_800
ST1+
1 A+
ST1-
A-
2
ST2+
3 B+
ST2-
4 B-
42
5
1
4
FROM/TO LOADER
C2301
CP2303
0.1 B
00_6232_012_102_800
R2302
3
1 INSW
100
2 W
3 V
4 U
5 GND
6 W-
7 W+
8 V-
9 V+
10 U-
11 U+
12 +5V
2
FROM/TO LOADER
CP2301
00_6232_005_102_800
5 COM
4 LDO+
R2343 C2326
3 OPEN/CLOSE SW
100 0.1 B
2 LDO-
W803
1 CLS SW(COM)
1
A B
C
MOTOR DRV SCHEMATIC DIAGRAM
HS2301
763WSA0023
NC
C2305
C2306
C2309
0.1 B
0.1 B
0.1 B
R2303
10K
41 40 39 38 37 36 35 34 33 32 31 30 29 28 27
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(DVD PCB)
R2314 R2313
10K
10K
3
C2328_1
6.3V 22 KA
26 25 24 23 22
R2311
100
7.1 2.7
C2329_1 8
VCC
6.3V 22 KA
1
17 18 19 20 21
1.6 1.6
R2308
100
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
D E
- 7 -
F G
W808
W806
2.7 2.7
7 6 5
-
REF2
REF1
-
GND
2 3 4
1.6 0
REG+7V IC
IC2305
PQ070XZ01ZP
V_OUT
V_IN V_C V_ADJ GND
6
1 2 3 4 5
8.8 8.8 7.1 1.3 0
F G
H
8
7
6
FROM/TO RF_AMP/DSP
LDM
OPN_SW
PSMUTE
SBMUTE
SPD_FG
TD
FD
REFDAC
SLD1
5
SLD2
SPD
TR-
TR+
FO-
FO+
INSW
D_GND
+3.3VD
4
3
FROM REGULATOR2
B2301
P.CON+A5V
FCM2012H-102T04
2
P.CON+9V
M_GND
D_GND
P.CON+3.3V
PCB130
VMC303
1
H