3 . MPU BOARD
Troub l eshoot i ng ( cont ' d )
POWER U P S E L F-T E ST FLOWCHART
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n
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B A D
F A U LT I S I N
U 2 , U 3 OR U 4
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B A D
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B A D
F A U LT I S I N
C L O C K C I R C U I T
( S .. FLOW C H ART)
GOOD
C H E C K
ADDR E S S L I N E S
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lOOns
S
••
No
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I
B A D
F A U LT . S I N
U :5 O R U 6
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B A D
R E P LA C E
6 8 000
STA RT
N O POW E R - U P
F A U LT I S O L AT I O N
C H E C K
o s c .
C LO C K
U 40 - P I N B
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50n,
C H E C K C L O C K
GOOD
U 3 7 P I N :5
C H E C K
GOOD
RESET L I N E 8 HALT
F O R LOG I C
L E V E L " I "
C H E C K
B A D
A D D R E S S STROBE
U I , P I N 6
R E P L A C E U I ,
GOOD
O R C H E C K F O R
P. C . T R A C E
C H E C K
GOOD
DATA B U S
S e . No', 2
B A D
C H E C K R / W
U 4 8 P I N I B
F A U L T I S I N
U 4 8 O R
U I
GOOD
GOOD
C H E C K
O T A C K
U I
P I N 1 0
C H E C K
GOOD
6 8 0 0 0
C H E C K F O R
P R O P E R LOG I C
L E V E L S
B A D
C H E C K U 3 9 , P I N 3
FOR LO G I C
LEVEl. " O "
( S
••
FLOW CHART
For
R E S E T C KT. )
GOOD
U D S 8 L O S AT
U I P I N S 7 8 8
B A D
S E E DTA C K
F L OW C H A R T
1 .
Address
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V and
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IV
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I V
B A D
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F A U LT I S I N
U I
NOTES
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200.1
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100.1
I i nes a l ternate between
5 VDC
2 .
Data
I i nes a l ternate between
nd
5 V C
o
V a
D
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3-63
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...
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