Sharp MZ-700 Service Manual page 27

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