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I will definitely be back for more information when I need it.
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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
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The manual is useful for trouble shooting for an old instrument. It saved money,and let me enjoy DIY.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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Perfect source of information for replacing the HDD and performing general diagnostics.
AV-25LS AV-25LX
5DIFFERENCE CONVERGENCE ADJUSTMENTS (Page 35)
STATIC CONVERGENCE ADJUSTMENT
(Same as AV-24LS and AV-25LX.) 1. Input a crosshatch signal. 2. Using 4-pole convergence magnets, overlap the red and blue lines in the centre of the screen (Fig. 4) and turn them to magenta (red/blue). 3. Using 6-pole convergence magnets, overlap the magenta(red/blue) and green lines in the centre of the screen and turn them to white.
(FRONT VIEW) (FRONT VIEW)
Fig. 4
4. Repeat 2 and 3 above, and make best convergence.
TOP
DYNAMIC CONVERGENCE ADJUSTMENT
(Procedure is changed from AV-25LS and AV-25LX.) 1. Move the deflection yoke up and down to adjust the pin cushion distortion in the screen top and bottom. (Fig. 5) 2. Move the deflection yoke left to right to overlap the lines in the periphery, and match the Yv. (Fig. 6) 3. Using the VR on the deflection yoke, match the YH (CROSS). (Fig. 7 and 9) 4. Repeat the steps 1 and 3 and obtain an optimum convergence. 5. Differential coil ADJUSTMENT. In case where the horizontal lines of red and blue around the centre of both sides of the picture as shown in Fig. 8, adjust the XV difference by using the differential coil on the top of the deflection yoke (Fig. 9) so as to minimize the XV difference.
YV Fig. 6 (FRONT VIEW) RED YH GREEN BLUE BLUE GREEN RED (FRONT VIEW) RED GREEN BLUE YV BLUE GREEN RED RED GREEN BLUE BOTTOM Fig. 5
� After adjustment, fix the wedge at the original position.
Fasten the retainer screw of the deflection yoke. Fix the PC magnet with glue.
BLUE
RED GREEN BLUE BLUE GREEN YH RED
VR
GREEN RED
FRONT XV coil
Fig. 7 (FRONT VIEW)
Fig. 9
Xv
GREEN
Fig. 8
2
No. 51848C
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