Panasonic JU-314 Service Manual page 28

Flexible disk storage drive
Table of Contents

Advertisement

15. SCHEMATIC DIAGRAM OF CONTROL BOARD [JU-314]
R7
:::on
Jo
J
r - ,
RS 330 !l.
- - - - - - - . ( 1 }..-_.__,..,,,__ _
_,,__""t:
+
5
v
1
2
TRACK ZERO
I
R9 330 n
Vee
,--
---~---
: 3\.!:--oNO.----'
~]NC
: ::!-Z...
:
I
'
@ZP
3?
TZP
' - -t------
~~l
1
m : .
r:oo.
- OM0
1
®"""· ----------------
11 -qOM<l
I
I
- IN L :
3 :
7 INL
I
O.c\R45
+12VS:~+12v
"
0
sue
l§T_
'"Q
+
5V
:©:
+5V
Qnl ---•
TST
+
svs:~,
:
l
R37 47K
~
I
m
~:~
IHXLPi
+
IXP:
+
WPP:
0 :
I I
I
2 : WPP
- OOP: :- :
1
I I
31 DOF
1 -
:
Rl
Cl
R~
c2f
R~ll:
C3.J:
GNO~~ s.2K~
l::OOpT 39K
l:COpT
39K 1500.1
~.i_.h
m
~
rn
r - - - ,
,- - - - - - - - - -, 1
f
.::.y
rJ],€~S ~Sr:
lf
J~ ~ ~ ~ :rrKl -
DRIVE
sELEcm
:~ ~.
::
11
~ia = ~
a2
DRIVE SELECT1
:@.:
'a
b
1
I
1
osi
I
101
I
DRIVE SELECT2·1~
I
I
~lM(l
:02
' .
43 MON
MITTOR ON
I
'iE'ri-,
1
,9;- y
I
:~·1~'
DRIVE SELECTJ:~~
Gf-=ius
IN USE
@;
1
~~
_
~..:..~
. . . , _ , , . , __
-+-+-+--+-+-+--...,
4
-<:i
4
rus
STEP
~~'@~·~sP
_ _ _ _
_._~,...._-i-----
4
~
0 srP
~:@u
a
SIDE
SELECT
oe
s;s
DIRECTION
:
1a
'~;o
39 · £/ .. o
'
:@wG
WRITE
GATE
I
24n-' _.., _ _ _ _ _ _
_._-+---
4
"'C1
1 WTG
I
l
I
I
M
""7'
\.0
<..O
-
< :l:
:l:
rox
2
ROY
5
TKZ
3
wPO
1-.
4
ROO
_5_
IX@
J
1
r-,
INDEX
81
-
RY@1
I
I
:~):
-
READY
n@
I
I
TRACK~~
. 2qii
-
WP@
I
l
I
28
I
- WRITE PROT
RO@
I
I
'
I
'501
-
RE.~D
DATA
L':::°"..J
+
SV
-+-5V
r
T
L 1 331JH
L2 680µH
I.
rw-t
r-'to'T-++sv
RlO
C~ll
R18
i.~9K.r~~
+12V
_J
1500
ri'7
leK
1 1l
+ - - - - - - - .
d}.
Si OE
<i 1
HEAD
~
IA-r~~n~1in~14cp
rhl
Tos1..
~J~ ~..
,..of_l,
&'.'Giio--1
-· -
-~
J
m,.
~-......_.._..~,R~2:.:.2:.,..·
,.,. . ....__._____,,....---·
...;.',~,!.
1
R/W&~
2 0:2
2
4='
Al
,,,j
15 1.:
.:7
39 3e
21 9 22 C
41
43
18
......
l>::::~·""
I
~~
....::~
I
t
C.'
I ·
t
I
iJI
1
.a
I
ESW
-::u
:::::
r.I)
r.I)
IO
r.I)
<
CCI
CCI
-
...,
N
-
C\I
~
-
I
'
"11
I
'
DA 7
'
Q
I ' '
'
CT,.;:;i
I
23
1
U)
>-
3:
U)
3:
U
U
U
0 0
U
8
Q
-;!
-<
6
I
ft'l"-- - ·
1 -
"'-=--~
a. ....
U)
:>
...j
c:
a:
;:; 3;
-5t
>
%
RWS
.-
1
'
w
i
I' ;
WSW,..----., -WG
I
+
>
..., ...,
<!J
:
:
"'
0A2
:.~
r-: : ' :
I ...
21
3
1
1
rq
r- -.,
i
I: : (
H 1sp..:.--<: -HS
A I 2
i:.:19~.-i'-"'.,;;'.._.,,.rn,....,.,..
,... .........
..,_..--+--+-'
t-r-' """"':
~.
HLM
pli-
FSW
p.12-
S?S
18
17
+SD2
~
-502
-rSOl
µ_...,
- soi
i4
CS1
--
Rll
1M
oc:~
37
_,
RS7
27
22on
rl7
-r
+12V
STC:?PER MOTO"R
Cll
C12
+5V+----1-~~1\~~i--j--~
~ 1-i 1.10 18.9 . 15
J
4
1
- - - - - - -
1
VS2
GNO
VS 1
+
QAo-3-... _
___.r ~
-µ'------',---'
I
I
-CA~2-----;' 3~,1
_ _ _ _ _ _ .____
I
+ce~1~6--~:
2µ:------'!--·Q('"'A1D-----,
I
r:;-..;;;......., _ _ _ _ _ _ _ _ _ _ _ _ _ .... 1~~1
f!-f,
-
QEl>1_1 _ _ ...,: 1
I
:
roo--J .
c1
:.::o
'----ar.---,, . . . . .
1
-----
!_ __
!
L ____
_J
l-""'-----.--x'""'1 ....
1
--;i--,
I
$
-r5
v
r - -
<lDMa
I
.,..
sv """"""----c-9-,-i"-...,Ff------,8: +sv
T
I
10µ
i
$01--+0:
CS
~
ml~
-_,-C-10_1 _ _ _ _ _
......_.L___'.,,3):
·1011-
~
T
+-
$+12V :(:;'\:
+12V ""'-
OD'
1\VI
L7
·s2-
~1PS
13
PS
H A 13
.<l
71 A M
p
•P-:'!;-----------------1~2dQ2"""""""..-...:..:..._
................ ...-...
GMO
+12V
I
I
I
I'°""
I
- - '
''-!·'WO
,~.
HA16642Mp
":R23;L...._•
I
I
9'
'-'RIW~l
1
RD . ,
,24 4440
+Ro
'oA~
''-+·~--!--.
,
7 ,
~
EF<s
~ ...... ; . . - .. ....+-!-!-' ,....,....---,,--.,.,.
!..-
.._ _________ ri:;1-wo
_
0:
12
o.:..:.~r:::.
: · : . :
1,-.Riwre;i •
j
"ii:1JN C
C\I
-
-
C\I
-
N
~
ION -
NO
S
:;;:
:E:
03: bl-1
--l---'-'. ...
_..,1-_,...._1-+--++-, -'-: -""',
:l
1 '
I '
1
~
- WRITE DATA
- - .J
L
All
°""
''""'"rd pins are
connecte<l to grouna ct
Jl.
~
IO
:E:
0
u
u
-
-
...,
0
~
00
-
-
' , _..'..
' . -
I
:
~
Tl
-----, CM2
0
u
0
0
0
0
<
<(
0
0
CJ
u u ~
.... .., :::.
0A4
I , - ,
I
0'" '
~
...
35 32
34j
3.:
30
/V~\31j_
281
2~
26
251241·
~1718
7!0'
~'1·
.i
:,
!~-
1
I
~·:
:
~~:I:, : •
b-li •,
l
C23
C22- R-::e
,_l§
..._
,
4 ,
K42
R41
R.321'""'~
:s.
0.
JIJ
0.11.1-1.::oon
~~~
rT7
... - - ..
1 ' - ' ' .
l_l IW11
on
?0~27on
RtOKl
~~g R.~O
R29lt=r
~
,..,
R25
:1:..:_·
t-
:'3,.
'l
ERl
rT7
-
2.2K, I 2,2K
15~o.!
0
~
AG
'
I
' I
GllO
m
,.
15C!l.
'---•
c-4
s
I W
DAS
'
1 L - . - - ·
"'_.,'
r-;:-;;;l
c"'
Uc
19
m----'
~iOE 1 HEA o
22oco
<i'•
~·oao';if
150p
0.111
Tj[ T 1
,
f l } ' -
1131 47K
L4 150µH
- 26 -

Advertisement

Table of Contents
loading

This manual is also suitable for:

Ju-324Ju-364

Table of Contents