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Example: Locating an open diode associated with the failing X-address of 000110 (SAR Bits 10 through 15)
Read
Source
D2G10
Write
Sink
D2J09
--•••ll<Jll-llllliilt~
Terminals
on Top
Diode Board
IMPORTANT: Remove X-Gate Cards 02 and E2
Probe:
Probe:
+
-
Probe:
56
161
Probe:
12
4
+
Probe:
20
12
Probe:
161
55
00
00
i
Open winding
Open land
Open weld
00
R
~
l
0
o
Open
R
00
l
(02 Open
Figure 4-5. Example-Locating an Open Diode (8K or 16K BSM)
or
or
or
00
R
i
o
0
or
o
1
Open
I
01
R
00
~
Open
I
00
R
'
I
o
3 Open
I
or
R
Read
Sink
E2B12
Write
Source
E2011
Note: R
=
resistance
oo
=
infinity (open)
5410 MM
4-7
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