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I
OA2
035
36 .
OAl
I I
D CND . 37 38 . OAO
I
LINTFCE STB . 34 33 . DPKD CLK
LINTFCE STB . 32 31 . ADC IRO
D GND . 30 29 . LKEY RPG IRG
D GND .
26
27 .
+lOV
REF
D GND . 26 25 . CAL OSC TUNE
D GND . 24 23 . HB ADC CLK 0
IA9 0 22 21 .
IA10
A3Wl
BKT PULSE . 20 19 .
IR/LW
I
NTERFACE STEP
PLLI
.
la
17 .
IAB
BID1
0 16 15 .
BID0
CABLE
CONNECTIONS
0104
07
a l
D108
EOI
09
10 .
REN
A19Wl
DAV . 11
12.
DGND
NRFD
0 13
14.
DGND
HPIB
CABLE
NDAC
. 15 16. DGND
CONNECTIONS IFC . 17
18.
DGND
SRO
l
19
20
l
D GND
REAR PANEL J3
LDPT STROBE . 50 49. D GND
BADC
CLKI
.
48
47 .
+2av
+5VF
. 46
45
.
+5VF
OPT
R/Li
. 44 43.
fl5VF
LHALT 0 42 4, 0
t15VF
OPTION IRO . 40 39. LOPT I/O
0 GND l
36
37 0 LOPT PROG
OA15 . 36 35 . LOPTION ID
OA14 . 34 33 . OA13
-15VF
. 32 3, . OA12
OAll
.
30
29 .
+5VF
OAIO
. 28 27 . OA9
WR PROT . 26 25 . OAa
OA7 . 24 23 . D GND
OA6 . 22
2,
. OA5
DGND l 20
lg.
OA4
OA3 . 16 17 0 D GND
OA2 . 16 ,zj .
OAI
D
GND .
14
13 .
OAO
OD7
. 12 11 . D GND
OD6
. 10 9 .
OD5
D
GND . 8 7 . OD4
OD3
.
6 5
. D GND
OD2
l
4 3.ODl
Cl
GND .
2
1 l
ODO
A2J2
AISJI
DlOl
l
24 23 . D105
D102
. 22 21 . D106
Dl03
. 20 19 .
D107
D104 0 10 17 0
DlOa
I I
EOI . 16
15 l REN
DAV . 14 13 .
D
GND
NRFD
L
0
12
11
l
D
GND
NDAC
l 10
9
.
D
GND
IFC l 8 7 .
D
GND
SRO
0 6 5 .
D
GND
ATN l 4 3 .
D
GND
NC
02
1 .
D
GND
REAR
PANEL
J2
spl50e
Figure 7-2. Ribbon Cable Connections (2 of 2)
General Troubleshooting
7-5