Sony TRINITRON KV-21PM2 - SECTION 3 SET-UP ADJUSTMENTS; Beam Landing

KV-21PS2/21RS22C/21RS50/21RS50C/21SD2 (RM-Y145)
KV-21PM2/21R22/21R22C/21R D2 (RM-Y146)
SECTION 3
SET-UP ADJUSTMENTS
• The following adjustments should be made when a
• Perform the adjustments in order as follows:
complete realignment is required or a new picture
tube is installed. These adjustments should be performed
1. Beam Landing
with rated power supply voltage unless otherwise noted.
2. Convergence
3. Focus
4.
Screen (G2) and White Balance
The controls and switch should be set as follows
unless otherwise noted:
Note: Test Equipment Required
PICTURE control.normal
1. Color Bar Pattern Generator
2. Degausser
BRIGHTNESS control.normal
3. DC Power Supply
4. Digital Multimeter
3-1. BEAM LANDING
Preparation:
• Feed in the white pattern signal.
• Before starting, degauss the entire screen.
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.
4. 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)
purity control
5. M ove the deflection yoke forward, and adjust so that the
entire screen becomes green. (Fig.l)
Fig.3
6. Switch over the raster signal to red and blue and confirm
the condition.
7. When the position of the deflection yoke is determined,
tighten it with the deflection yoke mounting screw.
8. When landing at the comer is not right, adjust by using
the disk magnets. (Fig.4)
Fig. 1
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Fig.4