XOCECO TQ2426, Service Manual

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17
3. with sound, without picture
No
With sound but without
picture
Check if B+
is normal
If H/V circuit
works
normally?
Check if each
group voltage of
FBT is normal
Check CRT
board and
filament voltage
Check if
N102 has
RGB output Check N102
and its
periphery
Check CRT
board, turner and
its periphery
If V301C#
output
H-frequency
If V301 is
damaged
Yes
Have raster No raster
Abnormal
Normal