Noise in picture
Error on all
(TV)
channels?
Check system
Replace main
Can picture be
adjusted by means
Poor geometry
of the adjustment/
check guide?
Leave BV1 on for
10 min. If error
reoccurs, replace
main chassis
Replace main
No teletext
Replace main
No auto contrast
Change to correct
settings
settings
OK?
chassis
Replace main
chassis
OK?
#6
OK?
chassis
Replace PCB11/
chassis
PCB58 (BC1)
OK?
No
Yes
Check channel
settings. Check
system settings
OK?
Replace main
chassis
The BV1 should be
taken to a
workshop for
repair.
Picture tube may
be defective
Fault fl ow chart, English
Change to correct
settings
2.7