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I have this hi-fi system for a long time and I need to repair some things. Founding this manual will be very helpfull :)
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It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
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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.
GREEN VERTICAL QUATERNARY DISTORTION ADJUSTMENT
GREEN VERTICAL ASYMMETRICAL PIN DISTORTION (SECONDARY DISTORTION) ADJUSTMENT
1. Correct the quaternary distortion of the horizontal lines at the top and bottom sections of the screen with GV 4PIN. 1) Since there is no 4SBOW for vertical correction, there will be a slight imbalance, but adjust to eliminate the distortion from the horizontal line at either the top or the bottom of the screen. 2) In many cases, the horizontal lines at the top and bottom sections of the screen are not straight lines after the adjustment. As long as the secondary distortion is mild enough that it can be corrected with the PIN adjustment, this is OK.
1. Correct the asymmetrical pin distortion at the top and bottom sections of the screen with RGV SBOW.
GV SBOW
GREEN VERTICAL ASYMMETRICAL PIN DISTORTION ADJUSTMENT
GV 4PIN
GREEN VERTICAL TRAPEZOIDAL DISTORTION ADJUSTMENT
1. Adjust the pin distortion for both side sections and the center of the screen with GV MPIN. 2. Adjust with GV PIN so that the horizontal lines at the top and bottom sections of the screen are straight lines. 3. Adjust with GV MPIN and GV PIN so that there is no curve in the horizontal lines on the entire screen. 4. After the adjustments in Items 1-3, adjust the tracking with GV SBOW, GV MPIN, and GV PIN.
1. Adjust with GV SSKW so that the tilt of the horizontal lines at the top and bottom sections of the screen is symmetrical about the center position horizontal line. 2. Adjust with GV MKEY so that there is no tilt for the line sections at both sides of the horizontal lines at the center section of the stream. 3. Adjust with GV KEY so that there is no tilt for the horizontal lines at the top and bottom sections of the screen. 4. While tracking, adjust with GV MKEY and GV KEY so that there is no tilt for the horizontal lines on the entire screen. 5. If the tilt is unbalanced after the GV MKEY and GV KEY adjustment, adjust again with GV SSKW.
MPIN PIN
GV SSKW
GV SBOW
GV MPIN
GV PIN
MKEY KEY
GV SSKW
GV KEY
GV MKEY
� 42 �
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