jedyne do czego mogę mieć zastrzeżenie to jakość zdjęć zawartych w przesłanej instrukcji serwisowej ponieważ są fatalnej jakości, praktycznie nieczytelne. tak poza tym jestem zadowolony to jest to czego szukałem.
Instrukcja jest OK. Schematy czytelne, opisane niektóre procedury.
Tekstowy podgląd strony 18 (kliknij aby zobaczyć)
21J-FG1RU
2. PURITY ADJUSTMENT
No. 1
Adjustment point PURITY ADJ.
Adjustment procedure/conditions 1. Receive the GREEN-ONLY signal. Adjust the beam current to ~700 µA . 2. Degauss the CRT enough with the degausing coil. Note: Follow the Job Instruction Sheet to adjust the magnetic field. Vertical Bv: +0.045 mT (0.45 gauss) Horizontal Bh: +0.020 mT (0.20 gauss) (Reference: page 3-6) Maintain the purity magnet at the zero magnetic field and keep the static convergence roughly adjusted. Observe the points a, b,as shown in Fig. 1-1 through the microscope. Adjust the landings to A rank requirement. Orient the raster rotation to 0 eastward. Tighten up the deflection coil screws. Tightening torque: 108 ± 20 N (11 ± 2 kgf) Make sure the CRT corners landing meet the A rank requirements. If not, stick the magnet sheet to correct it. Note: This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 700 µA. Note: Set to service mode by remote controller then press factory process R/C RGB key to change to RGB mono colour mode. For the following colours press R/C RGB(Hex 7E) key to change.
Waveform and others
a
b
3.
30mm
Fig. 1-1
30mm
4.
A
5. 6. 7.
B A=B
Fig. 1-2 Rank "A" (on the right of the CRT)
*
A
GREEN ONLY
BLUE ONLY Signal-colour screen cleared
RED ONLY
B A=B
Fig. 1-3
Rank "A" (on the left of the CRT)
* Press R/C RGB key for 1 second in NORMAL MODE, the colour will change to RGB mono colour mode.
