3279 Control Signals; Waveforms - IBM 3279 2A Maintenance Information

3279 MIM
6.2 3279 Control Signals
6.2.1 Waveforms
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Feature Oock
Scopepoint C2 MOB Sync. Internal 0.2 j.1s/cm, 1 V fern
x
10
probe. If bad, change card C2 then B2, 02, E2.
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14 MHz Oock
Scopepoint C2 P13 Sync. Internal 20 ns/cm, 1 V/cm
x 10 probe. If bad, change card C2.
Figure 6-2 (Part 1 of 3), Waveforms
Chapter 6, Support Information 6-2
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Horizontal Retrace
Scopepoint 82 G13 Sync. Internal
20jis/cm,
2
V/cm
x 10 probe. If bad, change card 02 then 82.
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64 ~s
(nom)
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Horizontal Sync.
Scopepoint 82 J13 Sync. Internal 10 ps/cm, 1 V/cm
x 10 probe. I
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bad, change card 82 then analog.
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