3 . t.4PU BOARD
Troub l eshoot i ng ( con t ' d )
R EAL T I ME CLOCK F LOWCHART
.
.
. .
.
.
.
.
BAD
C H ECK
T H E CRYSTA L
8
C O R R E S PON D I N G
P A R T S
.
. . .
..
. .
1 00 nl
GOOD
C H EC K FOR
P R O P E R LO G I C
L E V E L S
. . . .
. . . .
I V
.
STA R T
R E A L T I M E CLOC K
FAULT I S O L A T I O N
C H E C K
U 3 0 , P I N S
1 4 8 1 5
B A D
F A U LT I S I N
U 30
o .
U 7
G OO D
C H E C K
U 30 , P I N S 9 - 1 2
5 • •
Nol. 3
.
. .. . . . . ..
.
.
.
.
.
. .
.
. . .
U 3 0 p i n
1 4
GOOD
C H E C K
U 30, P I N
1
S
••
Note 1
GOOD
C H E C K
U 3 0, P I N S 4 - 7
5 • •
Nol. 2
BAD
FA U LT
IS I N
U
4
GOOD
C H E C K
U 30, P I N S
2 8 3
B A D
F A U LT
IS I N
U 5
NOTE
1 :
P i n
1
at
B A D
U 3 0 p i n
1 5
. . .
.
.
.
.
. . . .
.
. . . .
2
. . .
. . . .
.
.
. .
200n,
U 30
p i n
3
. .
.
.
ZV
.
.
.
.
.
.
.
.
.. . ....
I
.
.
2oon,
f A U LT IS I N
U 4
6 O r
U 4 8
�
-
-
,
u
l og i c
( 1 )
H IGH ;
push reset to see
s i gna l
pu l se too
fast
to capture
NOTE
2 :
Data
I I
nes a
I
ternate between 0 V and 5
VDC
NOTE
3 :
Address l i nes a
I
ternate between 0 V and 5
VOC
3-77
Summary of Contents for 5000 Plus
Page 57: ......
Page 125: ...3 MPU BOARD Troub l eshoot i ng cont d CLOCK D I AGRAM Vee 3 68...
Page 158: ......
Page 218: ......
Page 242: ...HOPPER CONTROL BOARD Boar d Assemb l y AS 3556 1 3 o 0 o Q5 r 7 4...
Page 258: ......
Page 290: ......
Page 335: ......
Page 343: ......
Page 361: ...1 5 APPEND I CES APPEND I X 4 Co i n Mechan i sm I nc 1 5 6...
Page 382: ......
Page 383: ...APPEND I X 6 Ser v i ce Su i l e t i ns 1 5 APP END I CES 1 5 1 2...
Page 384: ......