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Excellent manual, detailed, very useful! Exactly what I needed, I'd recommend it to all who need it. Although images are scanned easily readable and explicit. A valuable tool product at a price more than modest, take it with confidence and you will not regret it!
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Clear and complete service manual. Easy now to restore my old Kenwood KD-1500.
Thanks a lot.
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Thanks for this "hard to find" service manual. This Sony PS212A is a very good turntable that needed to be restored !
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Excellent quality on these manuals. Same as having the original printed manual and incredibly useful when doing a custom install like me. Keep it up on the good work.
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This is an excellent information source. Great quality and tons of info regarding technical service for the Technics SH8065.
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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