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KV-C2161D/C2561D/C2961D
RM-816
SECTION 3
SET-UP ADJUSTMENTS
@ The following adjustments should be made when
a complete realignment is required or a new
picture tube is installed.
@ These adjustments should be performed with
rated power supply voltage unless otherwise noted.
The controls and switch below should be set as follows
unless otherwise noted :
@® CONTRASTcontrol.---.---. 80%(or Normal by
commander)
t BRIGHTNESS control....-50%
Perform the adjustments in order as follows:
Preparation: (21 inch, 25 inch)
@ Set the side of the unit with the PICTUE TUBE so
that it faces east or west in
order to reduce the
influence of external magnetic force.
@ Turn the power switch for the unit ON and erase
the magnetic force using a degausser..
3-1. BEAM
LANDING
Demagnetize with a degausser
1. Input a raster signal with the pattern generator.
CONTRAST
BRIGHTNESS
2. Turn the raster signal of the pattern generator
to red.
3. Move the deflection yoke backward, and adjust
with the purity control so that red is in the center
} normal
and blue and green are at the sides evenly.
(Fig.3-1 - 3-3)
4. Move the deflection yoke forward, and adjust so
that the entire screen becomes red. (Fig.3-1)
5. Switch over the raster signal to blue and blue and.
confirm the condition.
6. When the position of the deflection yoke is
determined,tighten it with a deflection yoke mount-
ing screw.
7. When landing at the corner is not right, adjust
by using the disk magnets.
(Fig.3-4)
ae
i - Gee
1. Beam Landing
2. Convergence
3. Focus
4, Screen (G 2) and White Balance
Note: Test Equipment Required:
1. Color bar/Pattern Generator
2. Degausser
3. DC Power Supply
4. Digital multimeter
5. Oscilloscope
Purity control
Disk magnets or
-|.
rotatabled isk
magnets torrect
'these areis
(a-d),
Deflection yoke positioning
corrects these areas.
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