Sharp FDD-412A - Page 110

a
FDD412A/B
6-4 CONTROL BOARD SCHEMATIC DRAWINGS-4
(Applied to FDD-412A)
DD +Z24Vv
DD GRD
MTRSPD OK-N
ORG cLrscxr
@RD
Spindle-Motor
Portion
VFS NAG XST-N
(/88)
MEM GATE-P
CIB)
DATA AREA-P
C184)
VES SYNC-P
C184)
VFS
PATA
IN-p
(1D97}
t
(ny)
LEA
$8
yl
4S
uyLe i PS
2.
+Sv
+Sv
C&S
18
7 t
al ase?
PHA
SEL-P
2/
(IFS) ce
7 3
47
DES
+iSv
ut
céS
H4#ZS@B2 cé7
+Sv
2h
|
cag
Sot
+Zy
30| 244 241
STD
DATA-P
A
8/.
(1@6)61e8)
ap
ad
S7D
clocK-p
1
C1e8)
bas
VES ClEck-P
(1c8)
0.047
uF
40
(TPS)
19
VCD CLBCkK-P (NU)
3$
INCREASE
N
(Nu)
DECREASE-N
(nu)
HLGH
GAIN-N
(67)
38
(NU)
(NU)
—107—-
|
|
MTRSPD 5kK-P |
UHE) |
|
SRG CLECK-N
aas) |
t
Note. Uniess otherwise noted, all capacitors are 0.022uF Z.
—108—
10
Iv