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Great manual...really saved me. The only problem is that I thought I would be able to download it directly when I paid for it but never received the download instructions until the next morning. The board trace pages were somewhat light also: really need to turn up the contrast on the printer before printing them. The schematic page was great; very clear! Well worth the money.
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I've been in the electronic business for a long time. I used to buy Sam's Photofact for my needs which intailed having to go to the store and paying about $20 for a package of 3 different units so I was forced to buy more than I needed just to get one.
Owner manual is just at your keyboard and the information is almost instantansouly and the cost is very reasonable. Easy to print out if needed or simply read off of the screen. The larger the screen the better for obvious reasons.
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Very good manual, at a very good price. Received in a timely manner
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Only thу cover has poor quality, internal material has excellent quality - exactly what I needed
Thanks!
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Had everything I needed. Onyly took a few hours after paid for by PayPal. The copy was very readable.
AV-21F8
PURITY, CONVERGENCE ADJUSTMENT
PURITY ADJUSTMENT
1. Demagnetize CRT with the demagnetizer.
WEDGE DEFLECTION YOKE
2. Loosen the retainer screw of the deflection yoke.
P
3. Remove the wedges. (Fig. 1.)
CRT
46
4. Input a green raster signal from the signal generator, and turn the screen to green raster.
P/C MAGNETS � P/C MAGNETS P : PURITY MAGNET 4 : 4 POLES (convergence magnets) 6 : 6 POLES (convergence magnets)
5. Move the deflection yoke backward.
6. Bring the long lug of the purity magnets on the short lug and position them horizontally. (Fig. 2)
Fig. 1 7. Adjust the gap between two lugs so that the green raster will come into the center 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.
Long lug
PURITY MAGNETS
9. Insert the wedge to the top side of the deflection yoke so that it will not move.
10. Input a cross-hatch signal.
Short lug Bring the long lug over the short lug and position them horizontally.
11. Verify that the screen is horizontal.
Fig. 2 12. Input red and blue raster signals, and make sure that purity is properly adjusted.
(FRONT VIEW) GREEN RASTER
CENTER
Fig. 3
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No. 56035
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