NO RASTER
NO SOUND
Check +B voltage at J306.
Is there the square waveform at
pin4 of P101 (H-out)
140V
yes
yes
yes
OK
230~380V
Lower than 6V
no
NG
0V
no
Is the waveform at the collector of
Q402 normal?
Check/Replace
T701 and CONNECTORS.
Is the voltage at pin 24
of IC01 5V?
Check/Replace IC803,
D826, 827, 828, 829, T805,
T801, 804 and Fuse (FC02).
Check the part of
Digital PCB ASSY
Check the voltage of C834.
Check the voltage at pin9
of IC801.
Check/Replace
D802, D803, Q801 and
IC801.
Check/Replace
D801.
no
Check/Replace
Q401, T401and Q402.
Check/Replace
IC802, IC804, D810 and R832.