MZ-NH900
23
23
MZ-NH900
IY
VREF
OPTICAL
PICK-UP
BLOCK
(ABX-U)
HR601
OVER
WRITE
HEAD
RF AMP, FOCUS/TRACKING ERROR AMP
IC501
M703
OVER WRITE
HEAD
UP/DOWN
IX
JX
JY
A
B
C
D
S0
S1
L2
TRK+
FCS+
FCS–
FCS+
FCS–
TRK–
TRK+
TRK–
169
170
164
165
166
160
232
168
167
172
216
157
156
154
155
162
163
54 53 52
238
IIN
F
OVER WRITE
HEAD DRIVE
Q601, 602
M
M
OVER WRITE HEAD DRIVE
IC601 (1/2)
CLK
SLD MON U
SLD MON V
CLV MON U
CLV MON V
CLV MON W
SLD MON W
SLD MON V
SLD MON U
FCS–
FCS+
TRK–
TRK+
FOCUS/TRACKING
COIL DRIVE,
SPINDLE/SLED
MOTOR DRIVE
IC701
M701
(SPINDLE)
PLSE_XDC
CONT
59 60 61
CLV MON W
CLV MON V
CLV MON U
159
289
290
U
W
V
M702
(SLED)
U
W
V
171
SLD MON W
RF BUFFER
Q504
•
SIGNAL PATH
: PLAYBACK
: REC
L2 B+
L1
L1 B+
VCC
REG3 B+
PVCC
REG2 B+
MVCC
MDVCC
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – MD SERVO Section –
Summary of Contents for Walkman MZ-MH900
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