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i.
Turn on a power switch (5991).
j.
Turn High Voltage Control (VR301) gradually clockwise
until a reading of 29KV
±
lOOV is achieved.
!
NOTICE
I
High Voltage Control (VR301) and HV Limiter Control
(VR302) are critical components and never adjust or
replace these components in the field servicing.
Replace whole PCB-DEFL ASSEMBLY to a new PCB-DEFL
ASSEMBLY preadjusted and checked in the factory.
4.6
HORIZONTAL WIDTH ADJUSTMENT
a.
Set a connector AS
o~
PCB-DEFL to
3:~
aspect ratio
position.
b.
Adjust Hor.
Wid~h
Control (VR505)
for fully scanned
horizontal raster width.
4.7
HEIGHT AND VERTICAL LINEARIT)' ADJUSTMENT
a.
Select a cross-hatch test pattern.
b.
Adjust BRIGHTNESS,
G;..n~
and CONTRAS'i controls for
suitable picture.
c.
Adjust height control (VR403) on PCB-DEFL for fully
scanned vertical size and linearity control {VR402)
on PCB-DEFL for picture symmetry.
Readjust the
height, if required.
4.8
1 : 1 ASPECT RATIO ADJUSTMENT
a.
Set Lead Connector as on PCB-DEFL to 1:1 aspect ratio
position.
b.
Adjust VRSOS to suitable width.
4-8
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