4431 Sg Circuit Diagram 3(5); Appendix 4 - Facit 4431 Service Instruction

AO(CPU )
Al(CPU )
A2(CP U)
A3(CP U)
A4(CP Ul
A5(CP Ul
A6(CP Ul
A7(CP Ul
A8(CP U)
A9(CP U)
AIO(CP U)
All(CP U)
VIDEO(V GI RIS
2
(V GI 046:16
WR CRTC(CP U) 036: 12
(CP U) _])_36: 9
(V Gl 021:12
'LL INT(CP UI 064: 2
3 BUV GI 021:5
APPENDIX 4 4431 SG CIRCUIT DIAGRAM 3(5) 33
A B
+12V
---1~---uo."I----
+12V(x)
125
To.IAA
..L(S)
c
049
12
CRT-VTC
39
. - - - - - - - - - - - = - u C C AO .....,4=0-J' AO
8
Al I Al
bo A2 A2
.----------=-
---;0--17-t-<t' I A3 2 A3
-4-P2
4
b3
+~V
-
I
L..JJ":s
>---+-----1--+--+---+--+-----~ 17 ~ 9L
'-----+--+--+---+----~ 10 '-L~SYN
.-------------------+-+-----+--+--+-+--------"15<.+;SYN
16 ICRV
HOrM
HI~
H2rM
H3rM
H4~
H5 33
HG~
H 7 /DR 5
t-¥.,
DR4
t-M!
DR3~
DR2~
~ X4
2 HSY NC
4 VIDEO
DO
~~25._.Do
DI 24 DI
D2 23 D2
22
D3 21 D3 ......
DR:~
DRO~
D
E
D2B
0~5
D27
+5V
>-------71~-c>GI
l,2,3+/fC4
)c
~2
I
021= II (VG)
046: 17 (VG)
'---~ 0 ~ 41 ~'
3 ,__ CURSOR(VG)
'----""""'o_,_,_
4 l_,,:l 8 ,__ CSYNC(VGJ
+5'1
'7
G2
....L.1si'i
C1
Lt; ~ 3
l
A F 2 ...,4.____ _ _ _ _ MAO(MEMI
AO 3 1D
r.2;------+-j-____,3;-i~<fU
J:
1'. 14 AO
''------"14'--'A~
2-12 MAl(MEM)
Al
~
5 ;
4 4 ~
_g_
4
~
Al
·-~1~~!:1
7
A2
~~6'--------+-+---"-1
!.!'..
6 A,O
21-"------
MA2(MEM)
A3 8119 19 6 40
...! r1L--,
A2
---~~A
I
A4 18 1111
1
19 I
L'-+--+---+--~l'-ll A~
2 9
MA3(MEM)
A5 17
t-=-----i 10
16 2CT=l5 ...l.L A3 ,
-~IO~A·I
AG 14 r.o-------115 ' ' - ·
-~
A 7 13
liL..J.!.L-
+5'1 Dll
0-15
DIO
D4 20 D4
D5 19 D5
DG 18 DG
I VSYNC
.---+--+--+---"'~-£>
1,2,3 +If C4
~ ~ 2
10
~~
....L.1si'i
VSYN~ 1 ~ 1 -t--t----t--+-----'9~~
DS~ ~
D7 D7
3 GNO
(SJ
~
J
t--+-+-,
1
G3
_E._
~
R
~-+--1----+-----";--tA~
2 ,... 4 _ _ _ _ MA4(MEMI
3
...+ 1 ~~-1'...,
14
A 4
'-~14~A.!
2 12
'-+--+-+--~4~· 4 •~u ~ ~.--+--+--A- 5 -:- __ - -~~ 13 : A·~
i = - - - - - -
MA5(MEM)
5 12 5 A'K
?
7
.----t---+------11-----------~
·~
D24
&
8
10 D23
'------+-~:.,,:~3
~
J
~-+--+-+-~--140 4 6 A,v
L I - " - - - - - -
MAG(MEMJ
~----+-+--+-~6--140
8
r1L--,
AG A I
I L II
'n-
?9
'---+--+---+--~IO'-iA,v
L t = - - - - -
MA7(MEM)
2CT=l5
i-lL,
A7
·~-~A
I
~-~
&
2 D7
3 4
~1 ,..6----<1-----~0 4 ~ 2~= 1 ~7
NMI (CPU)
5 D20
Dl2
0-15
Dl3
13
&
II
.-----+-+------+---~'-+-+-+---"' 9 2-c>
1,2,3+ lfC4
1
1
5
tAI
+ 5 V '--+-+c7--tGI
~
G2
~--------1----------+-----+-------+----= 05 ~ 0 ~' 2 ~ 0
HSYNC(;/O)
12 Dl7
2
~1
II D30
+
5 , 1
'---~~§ ...l...(5~
-{-
I
C 1
-l.____ _
___,_l,..iaR ; A,0 2 ...., 4 _ _ _ _ _ MAB(MEM)
>-------------11--------t------i---~ 0 ~ 4 ~ 3 '~ 1 4 _ ,_
VSYNC(l/O)
9
I D34
&
10
T
,....Q.L.
.--1
8 Dl7
5
~s
2 lD
3
Cl
~
3 1 4
I
R
D5
+5Y
R2
~
~f.
820
l
820
rl¢
~O.
&
8
l.J~olLBI ~2
~~9, DB
C5 1,
J.£
4 , JI fcG
&
11
~·
13 DB
Top Top
..L(SJ ..L(S)
AB t-.
3
~I
2 3 1 1'. 14 AB 14 A.I 2 12
I-------:;·~,..,,___-+------~ ... [[
I
A 0
t = - - - - -
MA9(MEM)
A9 4 1D 5 4 40 2
~
A9
·-~13~A·I
AIO 71;JD----16 5 40 4
1-"'1=2---+----+--~5 6 _,A'Jf
2
7 MAIO!MEM)
All
8~9
6 40 8
ILll
AIO Al
13~12
II
'n-
2 9
D4 1D IO A,v o = - - - - - - MAll(MEM)
D5
14
l;JD----1
15
2CT=l5
rUi
All
~A,~I -~
DG
17~,_,_16"----+-~
D 7 18
w::=Jll!-
9
] ;?!1 t"'Le_-----;---------=02=2~:
I OW(VG)
>---+--~10._. D20
~-------<>---------+----1,___.0= 3 ~ 4 '~ 4
OK WR(CPU)
I
] =1
l.3_
:::19 =14 (VG)
D4 ----11f1hi5
o..l!=O--+----t---+-~04~1=~11
EOCH(VG)
o-s I ~
~+ I ~
t-----2=-t D3 5
~----------+------------'O=IB,,_:_,_I TB(VGI
~-------------+-----------' 0 = 2 -"-- 3 '_,_,l 3 ,__
ROW BLANK(VG)
Ur:-,oB,.__ _ _ _ _ _ _ _ _ _ _ _ _ __.0=2 ... 2==..10 FULL JAM(VG)
<
80/132(CPU) 064=19
4
-'=--'--"'--...----~5
1
D"-6---+---------'
[ l :
~
13 1 o-'""--- 2 -----+-----l--""03""'-l:!Lll MSEUCPU)
&J_l:l M
~~==_l:~==_r~~B~O
•r---1-+--D-5 _ _ _ _ _ _
1--+~0=22~=~11
1/2 JAM(VG)
1
D45
10
~ ~~
OO(CPUI -
+51/
.-----------------~-5"--1
D23
1-"'""""M'""'<-t---J~
Circuit Board: 1141 93 30-00
D5
Dl(CPU)
4
D2(CPUJ
D3(CPUJ
04(CPUJ
05!CPUI
~ ~
~~%l~
l
~
<i
I
&
3
~~oJLB2
4
~~2....
DB •
J.£1 • Jr
fC9
&
~·
5 DB
Top Top
..L(S) ..L(S)
6
~---+---------------t---'0= 2 ~ 2 '~!1_ CLK/2(VGJ
~----------+-~ 07 = 0 ~=
9 MEMSH(MEMI
~------+-----<r-+------1------------+-~02=2~= 14~ CLK(VG) 049 14 6
04 5 10
029,030 20 10
010.11.12.13,27,28 16 8
03,05-8,017,020,23,34,35,44
2"
14 7
IC
+5V
OV
Pin Number/ DC-Supply Voltage
13
+12V(r.)
D6(CPUI
D7!CPUJ