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It's exactly a complete and very useful manual with all details what I needed. Thank you!I will come back whenever I need your manuals or schematics.
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I searched EVERYWHERE looking for the manual/s on this "extinct" amp. Owner-Manuals.com made it available and for nearly nothing. Thanx to them, I can decipher the unknown cables and sort them out. Thanx, Owner-Manuals.com!!
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Yes thank you i got the file i was after. There was a slight problem in my communication but it all worked out well.
A job well done.
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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.
PURITY CONVERGENCE ADJUSTMENT
a b
B (2) Degauss CRT. Maintain magnet after the purity mode. G
NO POINT ADJUSTMENT CONDITION / PROCEDURE WAVEFORM OR OTHERS PURITY ADJ. GREEN ONLY Adjust 1 CONVERGENCE (1) Receive the "Crosshatch Pattern" signal. B G R
beam current to over 700µA ADJ (To be done (2) Using the remote controller, call NORMAL
at zero magnetic field and keep the static adjustment.) (Static convergence) R convergence roughly adjusted. (1) Turn the 4 pole magnet to a proper opening Fig. 1-1 through microscope. Adjust the landings to colours.
R G B
(3) Observe points a,b, as shown Fig.1 1 angle in order to superpose the blue and red Fig. a
A rank requirement. (2) Turn the 6 pole magnet to a proper opening
A Tightening torque : 108N 20N ( 11Kgf ± 2Kgf (Dynamic convergence ) A=B (6) Make sure CRT corners landing meet A (1) Adjust convergence on fringes of the
B sheet to correct it. a) Fig. a : G
(4) Orient raster rotation 0 eastward. angle in order to superpose the green colour R
G (5) Tighten up deflection coil screws. over the blue and red colours. B
Fig. b
rank requirements. If not, stick magnet screen in the following steps. R G B
B
Note : This adjustment must be done after Drive the wedge at point a " and swing Fig. 1-2 Rank A (On the right of CRT) R
warming up unit for 30 minutes or longer the deflection coil upward. with a beam current over 700µA. b) Fig. b :
Drive the wedge at point b " and Fig. c
G R change. c) Fig. c :
* For following colours press R/C RGB key to swing the deflection coil downward. A B G R
B Drive the c " wedge deeper and B
A=B
swing the deflection coil rightward. d) Fig. d :
1-3 Rank A (On the left of CRT) Drive b " wedge deeper and swing the Fig. d ONLY
RED GREEN BLUE
deflection coil leftward.
Wedge "a" (2) Fix all wedges on the CRT and apply glass
9
tape over them.
(3) Apply lacquer to the deflection yoke lock screw, magnet unit (purity, 4 pole, 6 pole
* Press R/C RGB key for 1 second in NORMAL MODE, Signal-colour the colour will change to RGB screen cleared mono colour mode. About About
100 Deg
magnets) and magnet unit lock screw.
Lacquer
Finally received the Red and Blue only signals to make sure there is no other colours on the screen. 6-Pole Magnet. CRT NECK
100 Deg
"b" Wedge "c"
(21") 20cm Purity Magnet Lacquer 4-Pole Magnet
20GT-30 21GT-30
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