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I
4.3
HORLZONTp~
AND VERTICAL aOLD CQNTROLS
--
E~s~re
~a~
video, ED and VD signals are applied to the
con.."1ector (VA).
Set Hor. Hold (VRS02) and Vert. Eold
(\~403)
on the
PCB-~.IN
for stable pi=ture.
4.4
DC SOURCE VOLTAGE ADJUSTMENT
a.
Check t.'1i.e AC input line voltage is wit.1j,in 100 '\, 120 V
AC or 220 '\, 240
V
AC.
b.
Supply a line voltage to
t.~e
PCB-POWER
~rough
the
connector (PA).
c.
Connect the DC
vol~~ete=
to the colle=tor of Q593
on the RADIATOR-D and the =hassis.
Adjust +31
Control
(v~90l)
on the PCB-POWER at DC + 90 V.
4.5
HIGH VOLTAGE AND HV
LL~ITER ADJUST~NT
a.
Remove a line voltage.
b.
Connect a high voltage meter between t.1j,e anode cap
of CRT and
~e
chassis.
c.
Supply a line voltage.
d.
Turn High Voltage Control (VR532) on t.1j,e PCB-MAIN
gradually clockwise until a reading of 27.0
=
0.3
kV is achieved.
If High Voltage value cannot be obtained, adjust the
+Bl Cont=ol (VR90l) to get 27.0
=
0.3 kV.
4-i
.-
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