Sony FD-40E - Page 12

Luminance
(BRT)
Adjustment
2.
Turn
CONTR
control
(RV401)
fully
clockwise
1.
Bridge
the
pattern
according
to
‘the
mark
on
the.
and
BRT
control
(RV852)
fully
counterclockwise.
neck
of
the
picture
tube.
heres
ies
at
3.
Connect
digital
voltmeter
across
R858:and'
adjust
a
RV802
for
8.1
—
8.7
V
reading
on
disital
volt-_
meter,
f the digital voltmeter reading is not, met, un-
solder pattern @ and repeat step.3....
5. After the adjustments, adjust BRT control (RV852)
and CONTR control (RV401) so that best bright-
ness and contrast are obtained.
4,
Picture EI
Tube @ (R880)
Cigital voltmeter
red “| open
no mark short
blue short :..
Note for using a blue marking picture tube:
e
Change
the
value
of
JR1
and
R856.
:
%
JR1
027120
k2
(1-216-248-00)
ie
ie
phseg
ee
THATS
a
R856
«390
kn
>
02
:
*
i
_