Schematic Diagram - Servo Section (1/2) - Sony MDX-M690 Service Manual

MDX-M690
6-7. SCHEMATIC DIAGRAM – SERVO Section (1/2) – •
CN102
20P
VCC
B1
J
B2
B
B3
A
VC
B4
I
B5
F
B6
C
B7
D
B8
E
VEE
ILCC
LD-GND
VR(RM-GND)
RM
NC
A1
FCS-
A2
FCS+
A3
TRK-
A4
TRK+
CN103
CN901
11P
11P
M901
SP-
(SPINDLE)
SP+
M902 SL+
(SLED)
SL-
LO+
M903
LO-
(LOADING)
(LOADING DETECT) C-SW
GND
(CHUCKING DETECT) E-SW
IN-LIMIT
(LIMIT)
NC
•
See page 42 for Waveforms. See page 43 for IC Block Diagrams.
C329
0.022
C318
22
6.3V
R356
10k
C331
0.1
Q302
2SA1037AK
B4
AUTOMATIC I
C319
R350 B1
POWER CONTROL 22
10 J
6.3V
VC
B3
A
B2
R359
B
10
B6
C RF AMP,
B7
FOCUS/TRACKING
R336 D
470k B8 ERROR AMP
E
IC302
B5
R348 CXA2523AR
C322
F
4.7k
0.001
PD
APC
R349 R357
APCREF
100 47
C321
0.0068
R338
13k
R351 R352 R353
2.2k 2.2k 2.2k
C342 C343
0.01 0.01
C3 C4
C339
C1
0.01
C2
C3
C4
CSW
ESW
LIMIT
C333
0.1
2SC2412K-T-146
REFERENCE
REGULATOR
LOADING MOTOR DRIVE
IC305
BA6287F-T1
D301
MA8056-M
OUT1 GND
VM OUT2
VCC VREF
FIN RIN
C363
0.1
C328
0.0022
R355
10k
TP3
(TE) (SE)
Q301
2SC2712Y-TE85L
R330
PEAK HOLD
470k
R329 R333
E3
680 680
BOTM
E4
ABCD C315 1
E5
FE
AUX
E6
ADFG
C327 1
ADAGC
ADIN
C326
ADFM 0.0047
E7
SE DCHG
CSLED APC
C325 0.068 E8 E6
TE ADFG
WBLADJ F0CNT
R346
XLRF
56k
CKRF
DTRF
APCREF
LDDR
D1
TRDR
D2
TFDR
L302
R340
C316
91k DVDD
0.1
D3
FFDR
D4
C346 FRDR
R342 R344 C347 C324 C317
22
13k 13k 0.01 0.1 0.1
6.3V FS4
D5
SRDR
D6
SFDR
D7
SPRD
R331
D8
100
SPFD
FGIN
TEST1
TEST2
TEST3
DVSS
EFMO
C350
0.1
C345
0.01
FOCUS/TRACKING C351
22
COIL DRIVE,
10V
SPINDLE/SLED
C344
MOTOR DRIVE
22
6.3V
IC303
BH6518FS
C356
100p
XRST
C357
100p
C358
100p
C336
0.01
Q303
VOLTAGE
1024FS OSC
R361
C359 IC304
2.2k
47p TC7WU04FU
C352 C353
0.1 0.1
EJECT
LOAD
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : MD PLAY
∗
28 28
C307 C306 C305
0.1 0.47 0.01
C314 C311
R320
0.1 0.015 R328
680k
150
C310 R325
TP2
0.47 1k
TP4
(FE)
R334
100
D2
D0
D1
XWE
XRAS
A09
XCAS
XOE
DVSS
A11
A08
DIGITAL SIGNAL PROCESSOR,
A07
EFM/ACIRC ENCODER/DECODER,
A06
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER, A05
DIGITAL SERVO SIGNAL PROCESSOR
A04
IC301
CXD2662R A10
A00
A01
A02
A03
DVDD
FS256
XBCK
LRCK
DADT
R307 R308
100 100
C301
0.1
D0
D0
D1
D1
XWE
WE
XRAS
RAS
A09
A09
R367 0
R360 0
R362
IC307
150
MSM51V4400-70TS
A00
A00
A01
A01
X301
A02
45MHz
A02
A03
A03
R354
VCC
10k
C362
0.1
D-RAM
: Impossible to measure
D3
D2
D0
D1
XWE
XRAS
A09
XCAS
XOE
A08
A07
A06
A05
A04
A00
A01
A02
A03
1
R317 1k 256FS
R316 1k BCK
R312 2.2k LRCK
R310 1k DATA
VSS
D3
D3
D2
D2
XCAS
CAS
XOE
OE
(Page 29)
A08
A08
A07
A07
A06
A06
A05
A05
A04
A04
2
3
L301
10µH
4
5
6
7
8
9
10
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.