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].Line voltage must be kept within
+15%
of the rated
voltage.
72. DO NOT DISCHARGE,
ARC, OR MEASURE
HIGH VOLTAGE
WHEN
HIGH
VOLTAGE
LEAD
IS CONNECTED
TO
CRT.
DISCHARGE
2ND
ANODE
OF
CRT
ONLY
AFTER
HIGH
VOLTAGE
LEAD
HAS
BEEN
DISCONNECTED.
DO
NOT
DISCHARGE HIGH VOLTAGE LEAD AT ANY TIME, DAMAGE
TO TRANSISTORS
MAY RESULT.
3. While the monitor is in operation, do not attempt to connect
or disconnect any wires.
4. Disconnect
all power
before attempting
any repairs.
5. When the power is on, do not attempt to short any portion
of the circuit.
This shorting may cause damage to the transistors in the
monitor.
ADJUSTMENT
Apply power and TTL input signal(alphanumeric information) to
the data dislpay.
CENTERING
1. Loosen the Deflection Yoke clamp and carefully move the
yoke on the neck of the picture tube as far forward as
possibile.
Rotate the yoke until the top bottom edges of the raster are
Straight. Tighten the clamp.
2. Center the raster by rotating the centering ring magnets.
FOCUS
Adjust focus control VR502 for providing the best focus.
HORIZONTAL WIDTH
1. Horizontal width coil to obtain the optimum width for full
information.
lf the recommended
input signal format is used, the width
should be (210mm).
2. When character width variation is observed in character of
one row. turn the core of the horizontal
linearity control
until the character width ts uniform.
bh
VERTICAL HEIGHT AND LINEARITY
1 . Synchronize the vertical frequency to the information signal
by adjusting the vertical hold control VR302.
2. Adjust vertical linearity contro! VR301 for the best linearity
and height control VR303 to obtain the optimum height for
full information.
(If the recommended
input signal format used, the height
should be (60mm),
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