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2-4.
Abnonnal increase
of
output
ripple
In
case
irregular increase is seen for the output ripple like
the one below, it needs to replace C22 and
C23
with new
ones because they have been fatigued.
-
t
t
1
00m
V
or
less
(Normal rippla)
Several
hundreds
millivolts
(Abnormal
ripple)
26
Input:
AC220
-
240V
Output:
5V,3.75A
Usa
oscilloscope
~v1Z
-70C