29H-FG3RU
B
X axis
0.5mm
?
CRT NECK
25mm
axisFig. 1Fig. 2Fig. 3Fig. 4
Y
Lacquer
Adjust by VR1Adjust by VR2
.
Adjust by Swing DY
Adjust by Balance Coil
4-Pole Magnet
BRRBBRRB
6-Pole Magnet
Purity Magnet
ADJUSTMENT
14-2
Balance Coil
Adjustment conditions/procedureWaveform or remarks
gle and rotation of the 4 pole magnet.closing angle and rotation of the 6 pole magnet.york neck is at the center of top bottom and left right. ( Straight line and without any blur horizon- tal / vertical line).tre y axis on the screen by using the Volume (VR2, VR1)at the deflection york. (Refer to fig.1 and fig.2)centre X axisis shifted, correct the Red, Blue (XV) by adjusting the balance coil on the deflection york. (Refer to Fig. 3)entire screen ,bond each 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.In case of poor convergence adjustmet on the top and bottom and of the screen, adjust DY by swing rightward and leftward. (Refer to Fig-4)
CONVERGENCE VR1VR2
1.Receive the " Crosshatch Pattern" signal. 2.Using the remote controller, call NORMAL mode.( Static convergence ) 1.Overlap blue and red with the open-/closing an-2.Overlap green on blue and red with the open-/( Dynamic convergence ) 1.Fix the wedges in a position so that the deflection2.Adjust the Red, Blue, upper and lower of the cen-3.If the Horizontal Red, Blue(XV) on the screen4.After confirm that there is no problems on theNote:
Adjustment pointCONVERGENC ADJ. ( To be done after the purity adjustment.)
1
No.
Fig. 1
Compensation magnet
Miss landing
RT back)
(CRT surface)(C
14-1
PURITY ADJUSTMENT
Adjustment conditions/procedureWaveform or remarks
adjust to +0.25G.poor adjust by attaching the the compensation magnet at the back of CRT. (refer to Fig-1)adjust to -0.25G.poor adjust by attaching the compensation mag- net at the back of CRT.During the pasting of compensation magnet , use the crosshatch pattern . Make sure there is no blur or bendlines occur. If the blur or bend are serious,adjust the location of compensation magnet to make it better.
ertical magnetic field = Each destination's adjust-
Before adjustment begin,Horizontal magnetic field = 0G Vment magnetic field. Make sure to degauss it.(North direction Red uniformity) 1.Horizontal mf = Set to monocolor screen red and2.Pay attention to the edge of CRT,if the landing is(South direction Red uniformity) 1.Horizontal mf = Set to monocolor screen red and2.Pay attention to the edge of CRT ,if the landing is(The same method is applied for adjustment of monocolor screen blue for blue uniformity ,and changing both the magnetic field for north and south direction.)*
Adjustment pointUniformity adjustment (To perform after the purity and convergence adjustment.)
2
No.
14 |
ACEC
