Sony Walkman MZ-RH1 - Diagrams and Schematics; Servo Section Block Diagram

MZ-RH1
2121
MZ-RH1
6-1. BLOCK DIAGRAM – SERVO Section –
SECTION 6
DIAGRAMS
8
48
47
40
41
42
23
9
35
21
32
33
7
56
1
54
55
50
51
52
49
15
14
18
IY
VREF
OPTICAL
PICK-UP
BLOCK
(ABX-U2)
D
D_C
PD_I
PDO_SOURCE
C
B
A
VREF10
A_C
JY
JX
IX
IY
RFO
PEAK
BOTM
ABCD
FE
TE
ADFG
PD_NI
VREF09
SBUS
SCK
SMON
XRESET
RF AMP, FOCUS/TRACKING ERROR AMP
IC501
M703
OVER WRITE
HEAD
UP/DOWN
17
IX
JX
JY
A
B
C
D
S0
S1
TRK+
FCS+
FCS–
FCS+
FCS–
TRK–
TRK+
TRK–
92
102
103
104
105
109
140
106
210
108
223
184
185
222
94
77
62
156
157
151
152
153
147
155
154
159
144
143
141
142
57
56
61
60
149
150
52
41
40
39
26
27
31
55 54 53
22 198
50
49
51
25
28
32
33
34
35
168
IIN
PD_BUF
20
F
HB
EFM
EFMO
226
HNH
228
HPH
227
HNL
229
HPL
OVER WRITE HEAD DRIVE
IC601 (1/2)
DRIVE
SELECT
IC682
RFI
TO IC801 (2/3)
(AUDIO SECTION)
139 VINP
PEAK
BOTM
ABCD
FE
TE
ADFG
VC
XRF_RST
31SSEL 186 RECPDLY
SE
SSB_CLK
PD_S0
PD_S1
SSB_DATA
38
45
OFTRK
VC
118
166
VREF_MON
OFTRK
APCREF_DA
SYSTEM CONTROLLER, DSP
IC801 (1/3)
SLCU
SLCV
SPCU
SPCV
SPCW
SLD_MON_U
SLD_MON_V
CLV_MON_U
CLV_MON_V
CLV_MON_W
SPDU
SLDW
SLDV
SLDU
FRDR
FFDR
TRDR
TFDR
SPDV
SPDW
XRST_MTR_DRV
RI1
FI1
RI2
FI2
WI2
VI2
UI2
VI1
WI1
CPWO2 CPVO2 CPUO2
SLD_MON_W SLD_MON_V SLD_MON_U
STALL
UI1
PWM1
FCS–
FCS+
TRK–
TRK+
COM2
WO1
CPVI2
VO2
WO2
CPUI2
UO2
59
RO1
58
FO1
63
RO2
62
FO2
CPWI2
CPUI1
29
UO1
CPVI1
30
VO1
CPWI1
COM1
FOCUS/TRACKING
COIL DRIVE,
SPINDLE/SLED
MOTOR DRIVE
IC701
M701
(SPINDLE)
11
RF_IY
10
RF_IX
26
19
CLK
160 FS256OUT
PLSE_XDC
CONT
235
225
LDPEN
XLSRCK
38 37 36
CPWO1 CPVO1 CPUO1
CLV_MON_W CLV_MON_V CLV_MON_U
14642 SLVSPWM2
16924 HI_Z_SLDST2
22423 HI_Z_SPDLST1
63
161
EFM_CLK
CHOPPERCLK
200
EFM_SEL
199
1 15
XCS_EFM_CTL
XA/B XG
69
HBB
78
HA
70
HAB
9
3Y
4
1Y
12
4Y
7
2Y
HR601
OVER
WRITE
HEAD
OVER WRITE
HEAD DRIVE
Q681, 682
BUFFER
IC681
U
WV
M702
(SLED)
U
WV
158SLCW
SLD_MON_W
148 SPVS
NPPO
43
2B
6
4B
13
1B
3
3B
10
2A
5
4A
14
1A
2
3A
11
ADIP_IN
39
13
RF_JX
12
RF_JY
LD CONTROL
Q503
• SIGNAL PATH
: PLAYBACK
: REC
VCC
REGO3
PVCC
REGO2
MDVCC
MDVCC
43, 44
45, 46
47, 48
OUTA
OUTB
84
82
MM