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2-2) Adjustment of Raster Centering
Adjust the Screen V R and Brightness V R so that the back rasters are faintly illuminated, then
connect the "CT" connector to the position that enables the back rasters to be centered on the
CRT screen.
CT1: DOES not move the horizontal screen position.
CT2: Moves the horizontal screen position about 5mm.
CT3: Moves the horizontal screen position about 12mm.
*
By changing the orientation in which the connector is inserted, the displacement direc-
tion of the screen can be changed from side to side.
2-3) Adjustment of Horizontal Oscillation, Hozitontal Width, Horizontal Linearity, and Side
Pincushion
(H. HOLD, H. WIDTH, H. LINEARITY, and SIDE PINCUSHION)
(1) H. HOLD
a)
Create a short-circuit between TP501 and TP502.
b)
During reception of Signal 2 (42 kHz)' use H. HOLD 1 VR501 to adjust the image into
a signal screen.
c)
During reception of Signal 3 (27 kHz), use H. HOLD 2 VR502 to adjust the image into
a single screen.
(2) H. WIDTH
Perform centering of H. SIZE (VR4), then use SUB H. SIZE (VR510) to adjust H. WIDTH
to 260mm.
(3) H. LINEARITY (Signal 1 crosshatch pattern)
Visually check H. LINEARITY, the use L506 to adjust it if necessary. Avoid rotating
L506 unless absolutely necessary.
(4) SIDE PINCUSHION
Use VR470 so that the optimum SIDE PINCUSHION is obtained. When SIDE PINCUSH·
ION is set to its optimum value, the right and left edges of the screen each form a straight
line. Because each of the four settings above will affect the other three settings, repeated
confirmation is required.
(5) H. POSITION (Centering adjustment of rasters)
a)
During input of Signal 1 (44.8 kHz), use SUB. H. CENTER 1 VR503 to adjust the
s screen to center.
b)
During input of Signal 4 (31.5 kHz), use SUB. H. CENTE R 2 VR504 to adjust the
screen to center.
c)
During input of Signal 5 (21.85 kHz), use SUB. H. CENTER 3 VR505 to adjust the
screen to center.
During the signal input of steps a), b), and c) above, make sure that the screen is centered.
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