IBM 5410 Maintenance Manual page 90

Processing unit
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Page of SY31-0244-2
Revised December 1, 1971
By TNL: SN31-0307
Switch Name
Setting
CE Mode Selector
Alter Storage
Storage Test
Run
Address Increment Off
*Ground
\
This is
a
composite picture which
shows
a
good drive line, and an
open drive line (broken weld in
array).
- - - This
is~
double exposure picture.
This highest down level shows a
good drive line. The lowest down
level shows two drive lines shorted
together.
Figure 4-16. BSM Waveforms
4-20
*
OPEN DRIVE LINE
Sync:
Time Base:
Sync Pin:
Signal Ni:1me:
Plus External
200
ns/cm
B4A1011
Reset
Good drive line measured at
10
V/cm
B4J2005 (8K-16K BSM)
B4K2005 (32K BSM)
'Y
Read Current Source Resistor'
Open drive line measured at
10
V/cm
B4J2005 (8K-16K BSM)
B4K2005 (32K BSM)
'Y
Read Current Source Resistor'
SHORTED DRIVE LINE
5V/cm
B4J2005 (8K-16K BSM)
B4K2005 (32K BSM)
'Y Read Current Source Resistor'

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