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TROUBLESHOOTING
4-2
Driive C:ontroller and Power Supply Assemblies
Figure 4-Jl shows the test-points, adjustments, jumpers, and key components on the Drive Control
PCA.
r - - - . - - - - ,
091,3)·-66510
REV C
J5
coo
0 0 0
L -
I
~ ~
r,
~ ~
.!.
-I
C (') C 0
~
OFF'
ON
I~o TEST
EFGH 15 NBYfE HARD DISC NO FLOPPY
AFGH 20 MBYTE HARD DISC NO FLOPPY
ESOH FUTURE USE
EFCH 15 NBYfE HARD DISC 630 KBYTE
OOUBLE SIDED FLOPPY
AFCH
~!O
MBYTE HARD DISC 630 KBYTE
OOUBLE SIDED FLOPPY
EBCH FUTURE USE
COOOOO
3)1
0+GJ
~~ ~~5
A
o~
E
B
o~
F
C
I2:QJ
0
G
D
oU
H
256
JMP3
JMP4-
JMP5
JMP6
J4
HO VOL
]
B
RPrs
0
I
J2
~wpw
GND
C8
f;\
JMPO
V
R~oT
~RPW
~
TO~
R
JMP1
0
0
WpW
veo
0
~o
1K
JNP2
J1
0
8
HP-IB
AODR
J2
To
flQPpy
disc
·(jriv~
J3
From
pow~r
supply
J4,J6 To
~
1 /4-inch
Winch~'t~r
disc
J!S
To front pannel LEO, and fon
NOTE:
Ther~
is no
silksc,..~n
for "T" and
Figure 4-1
"R" of JMPO on REV B peAs. The position
of the jumpers ore the same os
the REV C PC.... shown
ob(>V8.
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