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n 1-27. ITC (Integrated Tube Component) adjustments
The following ITC adjustments should be made only when a new picture tube is installed, or convergence is poor. All set-up adjustments above-mentioned must be completed before any further ITC adjustment is attempted. Receive an entire white raster signal and turn ON the Power Switch. Perform adjustment after a warm-up of at least an hour. Perform the following adjustments by setting H-convergence and V-convergence to center indication. Notes: See Chapter 5 concerning parts list for the ITC adjustments.
* PURITY MAGNET should not be turned during the ITC adjustments.
< Top view >
XV
< Side view >
PURITY MAGNET* 4-POLE MAGNET 6-POLE MAGNET
YV(a)
+
Yh(t)
+
TRD XV
+
DEFLECTION YOKE
ê
CRT face
DIFFERENTIAL COIL
SEPARATOR
LOCKING RING BOW MAGNET
1-27-1. LANDING correction
Landing meter setting: l Mode Select Switch: Monitor Normal Note: Mode Select Switch should be set before turning on the power switch of the landing meter. l Volt: 2V l Time: 50ms l Gain: 7 l Unit: % for LND-070, 0.8µm (1%=0.8µm) for LND-072 1) Face the CRT screen to east and set it vertically. 2) Degauss the entire screen with degausser. è See "EXTERNAL DEGAUSS". 3) Select DEGAUSS and press the MENU Button. 4) Receive an entire green signal. 5) Adjust the horizontal size to make it full-scan. 6) Apply the landing meter to TL (top-left), TR (top-right), BL (bottom-left) and BR (bottom-right) in the right hand side figure. 7) Confirm that "H" reading of the landing meter is within ±20% at each point. 8) Adjust rrc with the front buttons so that the "H" reading difference between T (top) and B (bottom) in the right hand side figure is as follows: | T-B | = ±3%. 9) Adjust Bottom-right, Top-right, Top-left and Bottom-left respectively with the front buttons so that "H" reading of the landing meter at each point is as follows: TL: �8 to �2% TR: +2 to +8% BL/BR: �3 to +3% - 13 20mm
TL
T B
TR
20mm
BL
BR
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