Canon A-1 Repair Manual page 145

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Fig. 3-48
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2V
Fig. 3-50
Magnet Release Waveforms
Release Time (T) Sp ike
MGl
<800 mS
MG3
<800 mS
19. TIME (19P)
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,
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• J
Fig. 3-49
Figures 3-48 thru 3-50 are
examples of incorrect
performance .
Figure 3-48 shows a normal
condition (left) and an
oily armature condition
(right) •
Figure 3-49 illustrates
noise.
Figure 3-50 illustrates
no regulation of first
spike due to breakdown of
the ZO.
Voltage (V)
Notes
>6
V
>6
V
Tie-point for SW4 and the CNST signal timing R-C circuit.
79