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Very good detail, all pages clear, exactly what I needed
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Excellent service, and just what I needed to service my TU-7700. All pages of the manual are clear and easily readable.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
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We received the manual in a timely manner and it was exactly what we were expecting. Excellent replacement for original Service Manual.
All schematics are very legible. We are really satisfied.
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We received the manual in a timely manner and it was exactly what we were expecting. Excellent replacement for original Service Manual.
All schematics are very legible. We are really satisfied.
AV-25KX3 AV-2555TEE
PURITY ADJUSTMENT
Note: The final adjustment of CONVERGENCE must be done after the FOCUS adjustment. (CONVERGENCE is changed by FOCUS adjustment.) When makes difference by FOCUS adjustment, should be reconfirming PURITY adjustment.
WEDGE DEFLECTION YOKE
1. Demagnetize CRT with the demagnetizer. 2. Loosen the retainer screw of the deflection yoke. 3. Remove the wedges. 4. Input a green raster signal from the signal generator, and turn the screen to green raster. 5. Move the deflection yoke backward. � P/C MAGNETS 6. Bring the long lug of the purity magnets on the short lug and position them horizontally. (Fig. 2) 7. Adjust the gap between two lugs so that the GREEN RASTER will come into the centre of the screen. (Fig. 3) 8. Move the deflection yoke forward, and fix the position of the deflection yoke so that the whole screen will become green. 9. Insert the wedge to the top side of the deflection yoke so that it will not move. 10. Input a crosshatch signal. 11. Verify that the screen is horizontal. 12. Input red and blue raster signals, and make sure that purity is properly adjusted.
Long lug
CRT
P
46
P/C MAGNETS
P : PURITY MAGNET 4 : 4 POLES (convergence magnets) 6 : 6 POLES (convergence magnets) Fig. 1
PURITY MAGNETS
Short lug Bring the long lug over the short lug and position them horizontally.
Fig. 2
(FRONT VIEW)
GREEN RASTER
CENTRE
Fig. 3
No. 52073
35
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