J..
MITSUBISHI ELECTRIC CORPORATION, JAPAN
KORIYAMA
WORKS
SPECIFICATION
1.
APPLICATIO~:
This specification is applied to following
3.5 inch Flexible Disk Drive.
2. MODEL: MF355C-12UJ
3. PHYSICAL SPECIFICATION
(1) SIZE of FRONT BEZEL:
(2)
(3)
(4)
(5)
X 1.0±0.02 inches
(101.6±0.5 X 25.4±0.5 mm)
COLOR of FRONT BEZEL and BUTTON: Black
(JSR NC100-9A1840NB UL 94V-0)
TEXTURE of FRONT BEZEL and BUTTON: Smooth Texture
Tanazawa TH-15
COLOR of IN USE LED: Red
Refer to Fig.' for other dimensions.
4.0~0.02
4. Print Circuit Board
CONDITION of SHORTING PLUG and JUMPER WIRE.
Refer to Fig.2 and Table.'.
INTERFACE
SIGNAL LEVEL: C-MOS
5. Parts Vender. List: Refer to Table.2
6. Other ELECTRICAL and PHYSICAL SPECIFICATION.
Refer to Table.3
7. Refer to STANDARD SPECIFICATION UGD-0527B for other'
specification.
8. Jumper option
Jumper plug type.
: SR-DC, MM-MS, IS-IU
and DRIVE SELECT ( DSO-DS)
Other jumper settings are chip jumper type.
, , ..
/,.,
,
, 01 . 6
r
-
~I1It
•
-I
V')
\:::>
V
4
/
LED
II
;r
I
-\j/
Allowance
I
I
II
~
I
ii==i=l1
"'== F=U
. .
-il- t--U'l
~
\0
lI"I
N
'
I,
,~
I
10.8
---
-
84.8
.....
FRONT VIEW(WITH FRONT PANEL)
~O.5
2
P' Connector
DC PowerConnector
\,
••
I
r
~-..pCB
:.
.... _ _ _ _ _
~
·. ---
__ .JI
r'
o·
"
o
V')
~---+.I~--+-----------+-----------~~~--~
~_________~9~4~------------~
,5
'01 .6
25.4
BOTTOM VIEW
SIDE VIEW
. Figure 1
Dimensions of MF355C ( mm )
< 2/6 )
o
o
o
o
o
1
0
MX
DSO
00
00
o
1
2
3
- Location
Fig.2 Printed-Circuit Board Trace
Le;'/
Table.'
Short Plug and Jumper wire
Panel indicator LED lighting condition IS,IU
L.ED lighting condition
IS
[I[]
em
IU
Lights up by the IN USE signal.
-
;Lights up' by the DRIVE SELECT signal.
*Note(2
Note:(') The option name enclosed in a square.shows an
insertion of· jumper line, and the name not enclosed
shows that i t is open.
(2) Setting when shipped from the factory
Name
Function
,
.
.
I
Setting. whenl Plug
shipped from
, the factory No.
Content"s
.
10SOI
Drive select 0
OS1
Drive select
DS2
Drive select 2
Selection of
I
,
l
DSO
DSl
drive select
.
.
D~3
.
Selection of
the l-10~OR-ON.
.
Notor is started by
the MOTOR-ON Signal
MN
Notor·is started by
the DRIVE SELECT
Signal
[ill
DC
(DC)
selection of
send signals
~DC
from interface
.
(conn~cto.rpl
.
Frame ground
)
.
SR
. (pC)
IFG
I
DS3 o 0
l-Sl-l
lQ:QJ
J-4
MS
..
..-
SRULQ]
DC.
IDC J
loci
J '2
Sends a DISK CHANGE
signal on
pin No.34 •
Frame ground 'and signal
ground are· shorted.
FG 0-0
FG
J 1
Sends a.STANDARD
READY signal on
pin No.34.
Sends a DISK CHANGE
signal on pin No.2.
SR
.
Drive 'select F3
IMM)
MS
[tl[)
conditions_
.
OS2
fQ:QJ
o 0
o0
Frame ground and signal
. ground are opened.
JP2
....,j
,Note: (1) r:::::J me~ns the plug posifion when shipped from factory,
and o~o for Jumper wire shorting.
SPECIFICATION
(<fIb)
'Jof
Table.2 Parts Vender List
Parts
Vender's
Parts Number
Vender
Mitsubishi Electric
BDR-35AAB -GU 1
Sankyo Seiki
U288Y063H01
Spindle Motor
Sankyo Seiki
Step
MSDA02OC81
.
. Tohoku Oki Electric
1-~otor
U288Y064HOl
~
-
;
NEe
I
I
IC-U262P069
I
I
C
i
i
iC-BA6580DK
ROHM
...
.J<yushu
HEAD
Matsu~hita
Wy~,
Electric
.
,
Mitsubishi Electric
.
.
102M 3
U460C 163GO 1
Alps °Electric .
o·
SPECIFICATION
nl/
Table.3
ELECTRICAL and PHYSICAL SPECIFICATION
SPEC
ITEM
.
-
SO
INDEX. XRANSDUCER
.
SETTLING TIME
.
MARGIN
HEAD RADIAL
ALIGNMENT
.',
O:!:22
AZIMUTH
).ml
(1 )
(' )
Max
!
S-100Hz
(OPERATING)
I
I
.
3.0G Max
S-100Hz
.
OP~TING)
SHOCK (OPERATING)
.
SHOCK" (NOH OfERATING)
-
!
I
O.SG
(HON
(1 )
STANDARD
D i oS k .
0°±" 2"
.
NOTE
15 ms
300nS
.·.TI lYrE
VIBRATION
4 oOJ,l S;t 400uS
400)Js±400us
ALIGNMENT
VIBRATION
S1
SG
Max
.
11ms
SOG
!-lax
l1ms
'.
~
Note (') MITSUBISHI ALIGNMENT DISK
MAL-302
(2) SflOCK : HALF SINE ·'·7AVE····
(3) CO~DITION : 'at 23°C±3°C·
50
±
S%RH
"SPECIFICATION
-.
(2 )
(2)
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