9-2. Vertical Size
Abnormal
V.Size
Is
changeable the
DC voltage of
IC401 pin 1?
Yes
Trouble V.OSC/
Deflection Circuit
Refer to V.OSC/Deflection circuit
Is
No
the 3.5Vdc of pin
4 of the IC501?
No
Check the IC501 and
its ambient circuit
25
Check the IC4
Yes
and its
ambient circuit
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