Pincushion Poor - NEC MultiSync 75F-3 Service Manual

7. POOR PINCUSHION
POOR
PINCUSHION
PARABOLA
WAVE
NO
CHECK
U302 PIN 11
PARABOLA
NO
CHECK
U302 PIN 14
SYNC INPUT
NO
CHECK U701 (PIN 32)
OUTPUT
YES
CHECK R390, U301
YES
CHECK 12V & U302
YES
36
CHECK U301,
Q316~Q318