Diagrams; Block Diagram - Servo Section - Sony Walkman MZ-RH1 Service Manual

6-1. BLOCK DIAGRAM – 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
OPTICAL
IIN 17
PICK-UP
BLOCK
(ABX-U2)
S0
S1
CONT
LD CONTROL
PLSE_XDC
Q503
TRK+
TRK+
TRK–
TRK–
FCS+
FCS+
FCS–
FCS–
MDVCC MDVCC
PVCC REGO2
VCC REGO3
• SIGNAL PATH
: PLAYBACK
: REC
MZ-RH1
SECTION 6

DIAGRAMS

HR601
OVER WRITE
OVER BUFFER
HEAD DRIVE
WRITE IC681
Q681, 682
HEAD
IC501
VREF10
ADIP_IN 39
NPPO 43
139 VINP
IY
RFI
RFO 8 92
IX
JX
ABCD 40 104 ABCD
JY
FE 41 105 FE
A
B TE 42 109 TE
C
ADFG 23 140 ADFG
D
PD_NI 19 94 APCREF_DA
CLK 26 160 FS256OUT
A_C
D_C OFTRK 45 166 OFTRK
VC 38 118 VREF_MON
PD_BUF
VREF09 9 106 VC
PD_I
PEAK 48 102 PEAK
BOTM 47 103 BOTM
PDO_SOURCE
SBUS 33 222 SSB_DATA
SCK 32 223 SSB_CLK
SMON 21 108 SE
SSEL 31 186 RECPDLY
XRESET 35 210 XRF_RST
184 PD_S0
185 PD_S1
225 XLSRCK
235 LDPEN
U
M702
W V
(SLED)
U
M701
W V
(SPINDLE)
3A 11
1A 2
4A 14
2A 5
9 3Y
DRIVE
4 1Y OVER WRITE HEAD DRIVE
SELECT
IC601 (1/2)
12 4Y
IC682
7 2Y
3B 10 77
HB
1B 3 69 HBB
EFM 62
4B 13 78 HA
2B 6 70 HAB
EFM_CLK
63
1 15
M703
OVER WRITE 84 OUTA
M M
HEAD
82 OUTB
UP/DOWN
200 199
SYSTEM CONTROLLER, DSP
TO IC801 (2/3)
IC801 (1/3)
(AUDIO SECTION)
FOCUS/TRACKING
COIL DRIVE,
SPINDLE/SLED
MOTOR DRIVE
IC701
TRK+
62 FO2 FI2 60
TRK–
63 RO2 RI2 61
FCS+
FI1
58 FO1 56
FCS–
RI1
59 RO1 57
43, 44 UO2
49 CPUI2
UI2 39
VI2 40
45, 46 VO2
WI2
41
50 CPVI2
47, 48 WO2 PWM2 42
51 CPWI2
ST2 24
52 COM2
29 UO1
UI1
25
32 CPUI1
VI1
26
30 VO1 WI1 27
33 CPVI1
PWM1 28
31 WO1
ST1 23
34 CPWI1
35 COM1
STALL
22
55 54 53 38 37 36
21 21
161 168 226 228 227 229
142 TFDR
141 TRDR
143 FFDR
144 FRDR
SLD_MON_U
159 SLDU SLCU 156
SLD_MON_V
154 SLDV SLCV 157
SLD_MON_W
155 SLDW SLCW 158
146 SLVS
169 HI_Z_SLD
CLV_MON_U
147 SPDU SPCU 151
CLV_MON_V
149 SPDV SPCV 152
CLV_MON_W
150 SPDW
SPCW 153
148 SPVS
224 HI_Z_SPDL
198 XRST_MTR_DRV
MZ-RH1