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2. No Raster
Normal
Normal
Check the voltage of
all pins of XP902 is
normal
Video amplifying
board is abnormal
Normal
Check N201 and H-Vibration
No raster
Whether G2 voltage is normal
Abnormal
Heater Resistor
open
Inspect the circuit
from pin19, 20,
and 21 of N201 to
video amplifying
board
V433 is not well
welded or open
Normal
Check N201
Abnormal
Check +12V power circuit
Abnormal
Normal
Check to see if the
voltage of V433 is
existed?
Check the voltage
of V433 collector is
normal
Lower
Higher
T431, V433 Or C415,
C416. Care broken
Abnormal
Replace bad components
Abnormal
Check the circuit from
pin13 of N201 to H-
drive
Inspect T431, R434
etc.
24
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