Diagrams; Block Diagram -Md Servo Section - Sony MZ-NHF800 Service Manual

6-1. BLOCK DIAGRAM – MD SERVO Section –
RF AMP, FOCUS/TRACKING ERROR AMP
VREF 7
11 RF_IY
10 RF_IX
13 RF_JX
12 RF_JY
IY 56
IX 1
JX 54
JY 55
A
50
B 51
C 52
D 49
15
14
F 20
18
17
IIN
OPTICAL
PICK-UP
BLOCK
(ABX-U)
S0
S1
PLSE_XDC
CONT
TRK+
TRK+
TRK–
TRK–
FCS+
FCS+
FCS–
FCS–
MVCC MDVCC
REG2 B+
PVCC
VCC REG3 B+
L1 L1 B+
L2 B+
L2
• SIGNAL PATH
: PLAYBACK
: REC
MZ-NH700/NHF800
SECTION 6

DIAGRAMS

HR601
OVER
WRITE
HEAD
IC501
VREF10 ADIP_IN 39
NPPO 43
145 VIN
IY
RF BUFFER RFI
RFO
8 101
IX
Q504
JX
ABCD 40 108 ABCD
JY
A
FE 41 109 FE
B
TE 114 TE
42
C
ADFG
23 153 ADFG
D
PD-NI
19 142 APCREF_DA
A_C
CLK 26 174 FS256_OUT
D_C
OFTRK 45 180 OFTRK
PD_BUF
VC 38 123 VREF_MON
PD_I
VREF09 9 110 VC
PDO_SOURCE
PEAK
48 106 PEAK
BOTM 47 107 BOTM
SBUS
33 251 SSB_DATA
SCK
32 252 SSB_CLK
S-MON 21 113 SE
XRESET
35 225 XRF_RST
209 PF1/S0DO
210 PF2/S1DO
254 LDPEN
272 XLSRCK
U
M702
W V
(SLED)
U
M701
W V
(SPINDLE)
OVER WRITE HEAD DRIVE
IC601 (1/2)
77
HB
CLK 60
OVER WRITE
69 HBB
HEAD DRIVE
EFM
62
78 HA
Q601, 602
70 HAB
EFM_CLK
63
LATCH
56
84
M703 OUTA
OVER WRITE
M M
HEAD
UP/DOWN
82
OUTB
245
TO IC801 (2/3)
(AUDIO SECTION)
SYSTEM CONTROLLER,
DIGITAL SIGNAL PROCESSOR
IC801 (1/3)
FOCUS/TRACKING
COIL DRIVE,
SPINDLE/SLED
MOTOR DRIVE
IC701
TRK+
FI2
32, 33 FO2
TRK–
35, 36 RO2 RI2
FCS+
FO1 FI1
16, 17
FCS–
RI1
13, 14 RO1
39, 40 UO2
UI2
27 CPUI2
VI2
42, 43 VO2
WI2
26 CPVI2
46 WO2
PWM2
25 CPWI2
ST2
COM2
28
9, 10 UO1
UI1
22 CPUI1
VI1
6, 7 VO1
WI1
23 CPVI1
PWM1
3 WO1
24 CPWI1 ST1
21 COM1
STALL
54 53 52 59 60 61
21 21
175
182 158
30 155 TFDR
29 154 TRDR
19 156 FFDR
20 157 FRDR
216 SLD_MON
50 172 SRDR
49 167 SLDV
48 168 SLDW
51 159 SFDR
45 289 HI_Z_SLO
232 SPDL_MON SLD MON U
SLCU 169
SLD MON V
63 160 SPRD
SLCV 170
SLD MON W
64 162 SPDV
SLCW 171
1 163 SPDW
CLV MON U
SPCU 164
62
161 SPFD CLV MON V
SPCV 165
CLV MON W
SPCW 166
4 290 HI_Z_SPDL
55 238 XRST_MTR_DRV
MZ-NH700/NHF800
CLK
A
(Page 23)