INFORMATIONS GENERAL ADJUSTMENTS
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE
(SET-UP ADJUSTMENT FOR FLAT TUBE)
■The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows :
1.Color Purity
2.Convergence
3.White Balance
Note: The PURITY/CONVERGENCE MAGNET assembly and rubber wedges need mechanical positioning. Refer to figure 1.
COLOR PURITY ADUSTMENT
(1)Let the screen face in the installing direction or toward the east (when it is to be moved), bring up the service mode screen after demagnetizing (front, left, right, and top) with the degaussing coil, receive white signals by pressing the [TV/VIDEO] button, and then the receiver should be operated for more than 40 minutes.
(2)Perform rough adjustment of the central convergence with the P/C magnet according to the adjustment item.
(3)Receive
(4)Move alternately the two
SPECIFIC
Figure 1.
Main
Green Belt
A
P/C magnet installing position A
• 30"=26.5 mm
• 32"=30.5 mm or 32.5 mm
• 34"=37 mm
• 34"=39 mm
(5)Receive
evenly. | Shift deflection yoke | |||||||||||||||||||
(6)Receive the green raster, shift the deflection yoke from a | (6) |
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| (7) Perform marking of each point | ||||||||||||||||
foremost position (hitting against the picture tube) to a |
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| on the tape of picture tube | |||||||||||||
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backward position horizontally, stop the deflection yoke |
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at a position where it begins to become a green raster, |
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and perform accurate marking on the picture tube. | Picture tube |
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(7)Shift the deflection yoke further backward, and perform |
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accurate marking at a position where the green raster |
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begins to being luck. |
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| P/C Mag |
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(8)Fix the deflection yoke at a position 60% forward within |
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100 60 0% |
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the range marked in items (6) and (7) above. |
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Fix the deflection yoke at a position 60% forward from a | ||||||||||||||||||||
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CONVERGENCE ADJUSTMENTS | point between (6) and (7) |
*Adjust the convergence magnet to get vest convergence in the the order to (1) ~ (5).
■CENTER CONVERGENCE:
(1)Receive the white crosshatch or dot pattern from the service signal generator.
(2)Use the 2 pieces of main
(3)Freeze the open angle of the main
(4)Take the same steps for items (2) and (3) above and align red/blue with green on the screen center using two
– 6 –