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Very fast service, best quality of the service manual and the schematics
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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
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Hi, this is a very clear manual, nice copy, not quite up to the standard of the very best available but better than many others. I think the price was especially fair for a hard to find manual and I would certainly use this manual seller again. Recommended.
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This schema available for me in good condition. I would highly recommend.
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Thanks for this "hard to find" service manual.
I apreciate the good quality of scanning and the pages scanned in A3 format.
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE �X-RAY RADIATION PRECAUTION�, �SAFETY PRECAUTION� AND �PRODUCT SAFETY NOTICE� ON PAGE 3 OF THIS MANUAL.
(FOR 35�, 36�)
s 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. Mounting position of the purity magnet assembly should fit to same position as old one because slightly difference to the position depend on a kind of tube. * There are no adjustment of purity and convergence in some picture tube (Unified with purity magnet) COLOR PURITY ADJUSTMENT NOTE : Before attempting any purity adjustments, the receiver should be operated for at least fifteen minutes. 1. Evenly degauss the entire screen. 2. Set the CONTRAST and BRIGHTNESS Controls to the maximum. 3. Display built-in green raster using the TEST SIGNAL SELECTION function. 4. Loosen the clamp screw holding the deflection yoke (and remove the Rubber Wedges). 5. Slide the yoke forward or backward to provide vertical green belt (zone) in the picture screen. 6. Rotate and spread the tabs of the purity magnet (See figure 3.) around the neck of the picture tube until the green belt is in the center of the screen. At the same time, center the raster vertically by adjusting the magnet as shown below. Figure 1. RUBBER WEDGES DEFLECTION YOKE 1-5/8�
SPECIFIC INFORMATIONS GENERAL ADJUSTMENTS
Xv Coil
PURITY/ CONV. MAGNET
Adhesive
Green Belt
7. Move the yoke slowly forward or backward until a uniform green screen is obtained. Tighten the clamp screw of the yoke temporarily. 8. Check the purity of the red and blue raster. 9. Put four wedges into the space between the picture tube and the yoke to hold the yoke in the adjusted position. (See figure 2.) Do not tilt the yoke by excessive insertion of the wedge. 10. Remove cover paper of wedge and stick wedges on the tube to fix the yoke in the adjusted position. Fix the wedges with glass cloth tapes.
DEFLECTION YOKE
Figure 2. �6�
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