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26
9-2. Vertical Size
Is
changeable the
DC voltage of
IC401 pin 1?
Check the IC401
and its
ambient circuit
Check the IC501 and
its ambient circuit
No
No
Trouble V.OSC/
Deflection Circuit
Refer to V.OSC/Deflection circuit
Yes
Is
the 3.5Vdc of pin
23 of the IC501?
Yes
Abnormal
V.Size