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Facit 4070 Service Instruction page 24

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Appendix
1: MAIN
ELECTRONICS
- TTL VERSION
1
KI
DIODE
BOARD
PUNCH
UNIT
2
KI
K2
Lei
R19
BI
i
i
|
37]
,
a
10k
vm
é
| Giger
tk
ve
'
(7
'
gr
A
R1
+
'
tr)
22k
aR
R29)
:
|
|
!
ch
470
:
|
,
Ij
|
A
!
o
I
1
]
|
1
1
'
i
'
I
1!
i
:
H
R10
1
|
|
!
i
Mi
'
82k
22n
t
CHANNELS 1 THROUGH 9 CONNECTIONS AT LEFT
;
;
;
H
.
1
t
R26
'
B8
|
Lg
t
CHANNELS 1 THROUGH 9 CONNECTIONS AT LEFT
1 10k
x
'
'
r
v
:
g
|
'
'
'
va
y
|
'
RB
:
BS
chal
as
|B
Ag
Ke)
V25
22k
ca
\By
(y7
R17
*
|
G)
oe
acme
v32
Veal |
chop
22k
a
R18
82k
4
R34
')
RS
'
5)
7
16
Hf IC 16
STEPPER
MOTOR
ODUNTER
83
a
wy
©
a
365
|
>
Go
Ss rr)
a
(oo
[sd ®
a js ©
as
>
a 1S o
(lz
ied
71 oc
Ko
3
»
Zs
| 88
5
|
2
+
8
>
R
x
a
(FNS
.
%
x
Ra
rs
x
"SI
STEPPER MOTOR
1
MZ
Li
F%
+
'
+
ied | F471] R46
10k
10k
1k
Lcove
_|o6
Bg
noes ies |
1 |
FEED HOLES
|B
124
Te
aa al
[ FEED
B4
C20]
C21
CL +
aes
:
omy oad ry
Alt
en
An
R53
B5
2
a
v
|
16
"As
;
parr
be
awe
HOME POSITION
os
oa
| 30
B7
Ale
INDICATION
o—s
a
oo
v5
$7
aes ss
!
'
'
4
RN?
'
err 1 }20
220
B13 |FA
ERR 2 |A20
OA!
DC-VARIANTS
R.
AUTOMATIC
is
"a vt
86
DC-ON
R12 pial
oc-on
SEE APP 3 _
(y
'
'
'
hot
°
ha
x20)
58
+24
9
| MOVE DIODE
03s
For
WATIC
R127[]
Rn2f]]
ans
|
¢ FOR AUTO
oe | Oe ll eae
A19, B19 | + 2%
1
R45
R26
B9
'
'
t
'
2k
| V2
+24
—449
)
+6
—|A2!
A21, B21
|+6
A22
1 x1 ®)
rape !
A20, A2?
t27
Low
|aw
(820,822
°
R51 |
s9
470
"HROUGH
9
+26
Ole
NOTE:
The test
points are
listed
in section
5.5.

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