Colour Television; Fuse Blown; No Raster Abnormal +B - Qls 21F1 Service Manual

Colour Television

Figure 1

Fuse Blown

Fuse Blown
Is the drain of
Q801 shorted
to earth?
Yes
Cheek /
Replace
Q801
Figure2

No Raster Abnormal +B

No raster
abnormal + B
Is the + B,
resistance to earth
ok ?
No
Check the load of
B+
No
Is D801~D804
OK?
Replace
D809~D812
Check Q402 collector C
Yes
resistance to earth ok?
Chassis:
No
Check IC801 and
the
components.
Yes
Yes
Replace Q402
NX56
peripheral