Motor Drive) Schematic Diagram - Sony DVP-NS705V Service Manual

MB-105 (MOTOR DRIVE) SCHEMATIC DIAGRAM • See page 4-7 for printed wiring board.
– Ref. No.: MB-105 board; 2,000 series –
1 2 3
MB-105 BOARD (4/11)
NO MARK:PB MODE
A
B+
+3.3V
B+
MB-105 BOARD
+5V
(6/11)
GND
B
R214
R213
10k
10k
R216
CN201 5P
C203
0.001u
OCSW1 1
C204
0.001u
CKSW1 2
MS-81 BOARD
R217
R207
CN001 GND 3
C 100
(SEE PAGE 4-6)
LDM- 4
LDM+ 5
D
E
FDRV+
F
FDRV-
TDRV+
TDRV-
SLE
SLDA
SLDB
G
MB-105 BOARD
(2/11)
MDSO
H
MDPO
LMCTL
LMP
LMM
I
05
• Waveforms
2 IC403 tj : NS705V
1 IC403 tg
940 mVp-p (H)
4 5 6 7
R232
33k
C216
R218
220p
1k 120k
OCSW1
CKSW1
1k
LDM-
LDM+
R219
120k
R230 C226
33k 220p
1.7
C215
R220
R239
150k 100p CL201
33k 1.7
R221
150k
1.7
C225
100p
1.7
R238
CL202
33k 1.7
1.7
R222
56k
1.7
C228
0.001u
CL203 1.7
R240
33k 1.7
R223
56k
1.7
C229
0.001u
CL204 1.7
R241
1.7
33k
R242
220k
R225
10k
C218
1500p
C230
R226 R233
R229 4700p
470k
470k
10k
C214 R243
470k
0.015u
C219
R227
0.1u
120k
C220
0.1u
R224 R231
270k 680k
3 IC403 tl : NS705V
660 mVp-p (H) 660 mVp-p (H)
4-17
8 9 10 11
B+
R259
10k
C258
0.01u
R254
R250 C249
R261
100k 100k 0.01u
10k
0.5% 0.5%
R253
56k R262
0.5% 330
C246
C259
0.033u
0.001u
C240
0.033u
1.7
1.7 1.7 5.1
48 47 46 45 44 43 52 42 41 40 39 38 37
IN1- DO1-
OUT1 DO2+
IN2+ DO2-
IN2- PGND1
OUT2 DO3+
IC202
IN3+ DO3-
FOCUS/TRACKING
COIL DRIVE
SPINDLE/SLED/
LOADING
MOTOR DRIVE
IC202
FAN8034
IN3- DO4+
OUT3 DO4-
IN4+ DO5+
IN4- DO5-
OUT4 PGND2
IN5+ DO6+
13 14 15 16 17 18 50 19 20 21 22 23 24
5.1
1.7 0
C250
R252 0.01u
33k
4 IC403 ya : NS705V 5 IC403 yd
660 mVp-p (H)
DVP-NS705V/NS755V/NS905V/NS915V
12 13 14
SIGNAL PATH
SPINDLE SERVO(SPEED AND PHASE)
TRACKING SERVO DVD/CD CDV
B+
SLED SERVO DVD/CD
FOCUS SERVO
SVC
SPFG
B+
FCS+ FCS+
FCS+
FCS-
FCS-
TRK+
TRK+
TRK-
TRK-
SLA+
SLA+
SLA-
SLA-
SLB+
5.2
FCS- SLB+
SLB-
SLB-
5.1
TRK+ SPM-
SPM-
SPM+
5.2 TRK- SPM+
C270
0.01u
5.1
SLA+
5.3 SLA-
5.1
SLB+
5.2
SLB-
3.7
SPM-
6.5
SPM+
C272
0.1u
5.1
LDM+
C273
0.1u
LDM-
R269
10k
TSD
SPMUTE
XDRVMUTE
OCSW1
OCSW1
CKSW1
CKSW1
B+
JL247
+11V
B+
JL248
M_GND
C271
47u 16V
6 IC403 yg
810 mVp-p (H) 1.1 Vp-p (H)
4-18
15
MB-105 BOARD
(2/11)
MB-105 BOARD
(1/11)
MB-105 BOARD
(2/11)
MB-105 BOARD
(5/11)
MB-105 BOARD
(6/11)
MOTOR DRIVE
MB-105 (4/11)