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SUB BRIGHTNESS A~USTMENT
1. Connect a DC meter between ''TP-H" (positwe lead) and
"TP-G" (negative lead) on main unit.
2. Receive the circular pattern.
3. Set brightness to maximum and contrast to minimum.
4. Adjust sub brightness control (VR211) for 0.4V.
NOTE: If picture tube
replace. Check
Sub-brightness
ad-
justment.
VERTICAL SIZE AIXIUSTMENT
1. Tune the receiver to monochrome
circular pattern
2. Adjust vertical size (VR451) control for full scan
HORIZONTAL CENTER ADJUSTMENT
1. Tune the receiver to mono-chrome circular pattern.
2. Set the brightness and contrast to maximum.
3. Adjust Video Phase (VR411) for optimum honz center P
sition,
VERTICAL LINEALITY ADJUSTMENT
1. Tune the receiver to the monochrome circure pattern.
2. Set the brightness and contrast to maximum.
3. Adjust VR461 to be A = B f 3mm
L
vertical center
HORIZONTAL WIDTH ADJUSTMENT
1. Tune the receiver to mono-chrome circular pattern.
2. Set contrast and bright to maximum.
3. If the picture is too wide or narrow, adjust horizontal width by
using VR481.
NOTE: Horiz. width adjustment affects high voltage and sub
brightness.
Therefore,
recheck
SUB-BRIGHTNESS
and HIGH VOLTAGE.
HIGH VOLTAGE CHECK
1. Tune the receiver to the monochrome circure pattern.
2. Set the brightness and contrast to minimum.
3. Connect the high voltage probe(+)
to anode lead of the pic-
ture tube and the ground (–).
4. High voltage must measure less than 30.5KV (25 "), 32.5KV
(29 ").
TUNING DISPLAY CENTER ADJUSTMENT
1. Tune the receiver to the monochrome circure pattern.
2. Press PRESET switch (SW713), and the tuning bar' is dis-
played on the screen.
3. Adjust the tuning bar center by using VR791 on the Control
unit.
4. Press PRESET switch.
CONTROL UNIT
(R) AUDIO IN (L) VIDEO IN
PRESET
+
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NOTE: If the picture tube is replaced, check the high voltage.
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