Set-Up Adjustments; B@A@M Lamaing 0 - Sony TRINITRON KV-20TS29 Service Manual

KV-20TS29/20TS32
KV-21STR2/2170RS
RM-Y116
SECTION 3
SET-UP ADJUSTMENTS
@ The following adjustments should be made when Perform the adjustments in order as follows:
a complete realignment is required or a new 1. Beam Landing
picture tube is installed. 2. Convergence
@ These adjustments should be performed with 3. Focus
rated power supply voltage unless otherwise noted. 4. Screen (G 2) and White Balance
Note: Test Equipment Required.
The controls and switch should be set as follows unless 1. Color bar Pattern Generator
otherwise noted : 2. Degausser
PICTURE control..----.-------. normal 3. DC Power Supply
BRIGHTNESS control........ normal 4. Digital multimeter
Preparation:
@ Feed in the white pattern signal.
@ Before starting, degauss the entire screen.
3-1. BEAM LANDING
1. Input a raster signal with the pattern generator.
2. Loosen the deflection yoke mounting screw, and
set the purity control to the center as shown in
Fig.2,
3. Turn the raster signal of the pattern generator
to green.
_
. Move the deflection yoke backward, and adjust
with the purity control so that green is in the
center and red and blue are at the sides evenly.
(Fig.3)
5. Move the deflection yoke forward, and adjust so
that the entire screen becomes green. (Fig.1)
Fig.3
6. Switch over the raster signal to red and blue and Purity control |
confirm the condition.
corrects this area.
Disk magnets or
rotatable disk
magnets correct
these arears(a-d).
"I
. When the position of the deflection yoke is
determined, tighten it with the deflection yoke
mounting screw.
8. When landing at the corner is not right, adjust
by using the disk magnets. (Fig.4)
Deflection yoke positioning
corrects these areas.
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