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There are currently no product reviews.
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Very detailed product, also it is a scanning from original, very useful if you have to service this type of amplifier ! Very good product, very hard to find!
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the Manual was made available as promised, the scans were excellent..Good Work !!!
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It's complete and helpful manual with good quality of scan. Thanks very much.
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The service was quick and simple, finding the service manual easy and it appears to be the original with colour schematics. It contained the info I was after and so sorted the problem.
I have copied it to CD and attached the envelope to the inside back cover of the owners manual. Good manual and excelent service. Robin Wood, Wood Electronics, New Zealand.
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Exactly what was needed to assess the product - excellent value and great service
AV-25L91
STATIC CONVERGENCE ADJUSTMENT [AV-25L91-BK]
1. Input a crosshatch signal. 2. Using 4-pole convergence magnets, overlap the red and blue lines in the centre of the screen (Fig. 7) 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. 7
4. Repeat 2 and 3 above, and make best convergence.
TOP
DYNAMIC CONVERGENCE ADJUSTMENT [AV-25L91-BK]
BOTTOM
1. Move the deflection yoke up and down to adjust the pin cushion distortion in the screen top and bottom. (Fig. 8)
(FRONT VIEW)
Fig. 8
2. Using the YV VR on the deflection yoke, match the YV. (Fig. 9)
RED
GREEN BLUE YV BLUE
GREEN RED RED GREEN BLUE
3. Using the YH VR on the deflection yoke, match the YH (CROSS). (Fig. 7 and 12) 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. 11, adjust the XV difference by using the differential coil on the top of the deflection yoke (Fig. 12) so as to minimize the XV difference.
BLUE GREEN RED YV Fig. 9 (FRONT VIEW) RED YH GREEN BLUE
� After adjustment, fix the wedge at the original position.
Fasten the retainer screw of the deflection yoke. Fix the 6 magnets with glue.
RED GREEN
RED GREEN BLUE
YV VR
YH VR
BLUE
BLUE
GREEN YH
RED
FRONT XV coil
(FRONT VIEW) Fig. 10
Fig. 12
Xv
GREEN
Fig. 11
46
No. 51898
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