Poor Pincushion Correction - NEC MultiSync FE700 Serviceanleitung

7. POOR PINCUSHION CORRECTION

POOR
PINCUSHION
CORRECTION
CHECK Q316 BASE
PARABOLA
NG
CHECK
U402 PIN 9
PARABOLA
NG
CHECK
U402 PIN 4
V.SYNC INPUT
NG
CHECK U701 (PIN 32)
OUTPUT
CHECK Q314~Q316,
OK
CHECK C431, R432
OK
CHECK 12V & U402
OK
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D308