29WF50
B
X axis
RB? 0.5mm
RB CRT Neck25
RFig. 6-3Fig. 6-4
Y axisRFig. 6-2Adjust by YH Lacquer
Adjust by YHC
Adjust by Balance Coil 4-Pole Magnet
B
B
6-Pole Magnet
Purity Magnet
Balance Coil
Fig. 6-1
10-2
Adjust by swing DY
Fig. 6-3
and .
YH
YHC
Fig.6-1
Fig. 6-2
Adjustment Condition / ProcedureWaveform or othersIn case of poor convergence adjustment on the top and bottom of the screen, ad- just DY by swing rightward and leftward. Refer to For CRT drawing, please refer to following page.
mode.angle and rotation of the 4 pole magnet./closing angle and rotation of the 6 pole mag- net.flection yoke neck is at the center of top bot- tom and left right. (Straight line and without any blur horizontal / vertical line)center y axis on the screen by using the Vol- ume (YH,YHC) at the deflection yoke. Refer to center X axis is shifted, correct the Red. Blue (XV) by adjusting the balance coil on the de- flection yoke. Refer to Fig.6-4entire screen, bond wedge on CRT and glass tape on it. Fastening the screws of DY and magnet unit (purity, 4-pole and 6 pole), then coat the lacquer paint on DY fastening screw and magnet unit fastening screw.
CONVERGENCE ADJUSTMENT
(1)Receive E-2CH (the Crosshatch pattern). (2)Using the remote controller, call NORMALStatic Convergence Adjustment 1.Overlap blue and red with the open-/closing2.Overlap green on blue and red with the open-Dynamic Convergence Adjustment 1.Fix the wedges in a position so that the de-2.Adjust the Red, Blue, upper and lower of the3.If the Horizontal Red. Blue (XV) on the screen4.After confirm that there is no problems on theNote:Note:
Adjustment pointCONVER- GENCE ADJ (To be done after the purity adjustment.)
1
No.
Miss landing
Fig.5
Compensation magnet
(CRT surface)(CRT back)
.
Fig.5
10-1
Adjustment Condition / ProcedureWaveform or others
UNIFORMITY ADJUSTMENT
and adjust to +0.25G.ing is poor, adjust by attaching the compensa- tion magnet at the back of CRT. Refer to and adjust to -0.25G.ing is poor, adjust by attaching the compensa- tion magnet at the back of CRT.
use the crosshatch pattern signal. Make sure there is no blur or bend lines occur. If the blur or bend lines are serious, adjust the location of compensation magnet to make it better.
Before adjustment begin, Horizontal magnetic field=0G, Vertical magnetic field = 0.1G. Make sure degauss it.North Direction Red Uniformity 1.Horizontal mf = Set to monocolour screen Red2.Pay attention to the edge of CRT, if the land-South Direction Red Uniformity 1.Horizontal mf = Set to monocolour screen Red2.Pay attention to the edge of CRT, if the land-The same method is applied for adjustment of monocolour screen Blue for blue uniformity, and changing both the magnetic field for north and south direction.*During the pasting of compensation magent,
Adjustment pointADJUSTMENT (To perform after the purity and conver- gence adjustment)
1UNIFORMITY
No.
10 |
ACEC
SHARP
