Table of Contents
Advertisement
d.
Then, moving in a circular motion and with the coil
perpendicular to the monitor, slowly back away
6
to
8 feet and turn the coil switch OFF.
NOTE:
Degaussing Coil - G.C. Electronics, Catalog No.
9317.
4.3
HORIZONTAL AND VERTICAL HOLD CONTROLS
Ensure that video
and sync
signal are applied to the
monitor.
Set H. Hold {VR502) and V. Hold (VR401) on PCB-
DEFL for stable picture.
4.4
DC SOURCE VOLTAGE ADJUSTMENT
a.
After checking the AC input voltage is within 100
120V AC or 220 - 240V AC, apply the power input.
h
..,
.
T~rn
the
power switch
(S99l)
on.
c.
Connect the DC voltmeter to TP - +lOOV and TP-GND on
PCB-POWER.
Adjust VR901 on PCB-POWER at DC +lOOV.
4.5
HIGH VOLTAGE AND HV LIMITER ADJUSTMENT
a.
Turn off a power switch (8991).
b.
Connect a high voltage meter between the anode cap of
the CRT and the chassis.
c.
Set the High Voltage Control (VR301) on PCB-DEFL to
the fully clockwise position.
d.
Set the HV Limiter Control (VR302) on PCB-DEFL to the
fully counterclockwise position.
e.
Turn on
a
power switch (5991).
f.
Turn the
HV
Limiter Control (VR302) gradually clock-
wise to operate the HV Protector circuit.
g.
Turn off a power switch (5991).
h.
Set the High Voltage Control (VR301) to the counter-
clockwise position.
4-7
Advertisement
Table of Contents
