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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.
Alignment and Adjustments
2-5 Other Adjustments
2-5-1 Screen Adjustment
1. Warm up the TV for at least 30 minutes. 2. Select the �DYNAMIC� Video mode. 3. Trun to the Video Mode(No Signal) using a remote-control. 4. Connect an oscilloscope to RK, GK, BK. 5. Adjust the VR (Focus Pack) screen so that RK, GK, BK pulse is 20Vp-p each. (Turn the R,G,B VR screen fully counterclockwise in the area of each flyback line.) 3. Select Sub-Bright by pressing the Deletion Keys. 4. Adjust so that the 63 step on the right side of the screen is not seen (Use the 5. Press the Menu key to exit. keys in the following sequence : Displsy � Menu � Mute � Power ON
2-5-4 Static Focus Adjustment
PRECAUTION
1. Select the �DYNAMIC� video mode.
2-5-2 White Balance Adjustment
1. Select the �DYNAMIC� video mode. 2. Input 100% white pattern. 3. In the stand-by mode, press the remote-control keys in the following sequence: Info � Menu � Mute � Power ON 4. Warm up the TV for at least 30 minutes. 5. Input a 10-step signal. 6. R-cut off, B-cut off, and off by pressing the Direction keys. 7. Adjust the low light with viewing the dark side of the screen. 8. Select R-drive, and B-drive by pressing Direction keys. 9. Adjust the high light with viewing the light side of the screen. 10. If necessary, redo adjustments 6~9. 11. Press the Menu key to exit.
2. Input a crosshatch pattern. 3. Cover the lenses that are not being adjusted. 4. Connect a convergence jig and read data. 5. Adjust the lens for best focus. (See Fig, 4-1)
STATIC FOCUS (CONTINUED)
Vary the focus pack VR (Red, Blue) on the front cabinet. Adjust the TV for best possible focus around the center of the crosshatch pattern, without losing overall screen balance. Figure Crosshatch Pattern Examine these points together.
Examine these points together
Fig. 4-1 Crosshatch Pattern.
2-5-3 Sub-Brightness Adjustment
1. Input a sub-brightness adjustment signal. (TOSHIBA PATTERN) 2. In the stand-by mode, press the remote-control
2-30
Samsung Electronics
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