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Adjustment accompanying exchange of the picture tube
• When the picture or the deflection yoke ha been exchanged, perform all of the following adjustment in the following order.
When no part exchange has been done, adjustment still must be performed.
Procedure
Confirmation of demagnetization
Convergence confirmation and adjustment
H-V (distortion, position) adjustment
Adjustment
Installation and provisional
adjustment method
Front
(picture
tube)
Deflection yoke
VRS adjustment
Purity adjustment
Purpose: Facilitation of adjustment after installation
22.0mm
6-pole convergence
magnet
4-pole convergence
magnet
VRS magnet
Purity magnet
White balance adjustment
Sub-brightness adjustment
Focus adjustment
Overall inspection
1. Push the deflection yoke all the way to the front and fix it
provisionally.
2. Align the knobs of purity magnet, 4-pole convergence
magnet, and 6-pole convergence magnet to minimize the
composite magnetic field.
3. Demagnetize the front and the rear of the picture tube,
the left and the right side of the cabinet, etc. with a
demagnetization coil.
At this time, keep the demagnetization coil away from the
deflection yoke.
4. Receive a color pattern and perform aging for at least
one hour.
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