19
Horizontal bright line
Break R908 , let multimeter preset on R 1K and red meter rod grounding, let black
meter rod tap pin 4 at N402.see if the bright line can wide at instant.
Check if R907 R448 are
rosin joint and the resistor
value of R448 changes
larger.
Check the
external circuit of
N201 and N201.
Normal
There is breakdown in the vertical output
grate
.
Check if the connector of
the deflection yoke is
connected well,and C433is
rosin joint or cutoff, and the
external circuit of N402 and
N402.
Check 26V power
circuit.
YES
NO
YES
NO
YES
NO
3.
Maintenance Service and Trouble shooting
