Sony MZ-E800 Service Manual page 21

6-2. BLOCK DIAGRAM – MAIN Section (2/2) –
TRK+, TRK-
FCS+, FCS-
TRK+
A
(Page 22)
TRK-
FCS+
FCS-
M902
(SLED)
M M
M901
(SPINDLE)
05
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER,
D/A CONVERTER, 16M BIT D-RAM
SLED
VOLTAGE MONITOR
IC552
5
7 139 SLCV
6
3
1 138 SLCU
2
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC551
FO3
30
FI3
PRE
21 110 TFDR
HI-BRIDGE
DRIVER RI3
CONTROL
22 109 TRDR
RO3
32
FO1
7
FI1
HI-BRIDGE 16 111 FFDR
PRE
RI1
CONTROL
DRIVER 15 112 FRDR
RO1
5
FO2 RI2
134 SLDV
11 13
PRE HI-BRIDGE FI2
133 SLDU
14
DRIVER CONTROL
RO2 PWM24
141 SLVS
9 25
FO4 FI4
26 23 135 SLDW
HI-BRIDGE
PRE
RO4 RI4
28 CONTROL 140 SLCW
DRIVER 24
COM
COW0
37
34 132 SPCW
CPW1
38
COV0
CPV1 35
131 SPCV
39
COU0
SPCU
CPU1 36 130
40
UO
46 W1
48
V1
PRE 1
VO 3 PHASE
U1
44
DRIVER CONTROL
2
PWM1
WO 3
42
OE
17
BIAS
– 23 –
IC601 (2/2)
19
OSCI
X601
22.5792MHz
20
OSCO
SPINDLE SERVO DRIVE SWITCH
IC504
124 1 2
SPVS
7
SPDU 127 6 5
3
SPINDLE SERVO DRIVE SWITCH
IC505
SPDV 128 1 2
7
SPDW 129 6 5
3
X801
16.9344MHz
45 XTAL
46 EXTAL
SYSTEM
CONTROLLER
IC801 (2/3)
49 SPDL START SW
35 SLD1 MON
26 CLV W
25 CLV V
24 CLV U
67 SPDL PWM
27 XRST MTR DRV
– 24 –
MZ-E800