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OPTICAL SYSTEM ADJUSTMENTS
DP-85 CHASSIS
Focus
adjustment
21 Gee Fig- I/ Loosen the fix-
l
~;nt, Locatedjust
below
DP-8X
Series
Chassis:
ing screw
on the lens as-
the screen
are two
center
Preparation
for adjustment
sembly
so that
the lens
speaker
hole panels.
Re-
1)
Receive
the Cross-hatch
cylinder
can be turned.
(Be
move
the panels
to allow
pattern
signal.
careful
not to loosen
the
access
to the focus
rings
2)
The electrical
focus
adjust-
screw
too much,
as this
on the Lenses.
ment
should
have
been
may
cause
movement
of
completed.
the lens cylinder
when
4) After
completing
optical
fo-
3)
Deflection
Yoke
tilt should
tightening.)
GUS, tighten
the fixing
have
been
adjusted.
3)
Rotate
the cylinder
back
screws
for each
lens.
4)
Brightness
= 50%
and forth
to obtain
the
5) When
adjusting
the Green
Contrast
= 60%
to 70%
best focus
point,
while
ob-
Optical
focus,
be very
care-
serving
the Cross-Hatch.
ful. Green
is the most
domi-
Adjustment
procedure
(Observe
the center
of the
nant
of the color
guns
and
1)
Short
the 2pin
sub-
screen).
any
error
will
be easily
miniature
connector
on the
seen.
CRT P.W.B.
TS, to produce
6) Repeat
Electrical
Focus
if
only
the color
being
ad-
necessary.
justed
and adjust
one at a
time.
(The adjustment
or-
der of R, G and
B is just
an
example.)
FIXING
SCREW
LENS
ASSEMBLY
R, G, B.
Fig. 1
PAGE
01-20
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