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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
5-5 Service Mode Adjustments
5-5-1 LCD Interface IC (CXA1853) Adjustment Values to be adjusted for each set
No. 0 1 2 3 4 5 6 Item main bright R main bright B main bright gamma gain1 R gamma gain1 B gamma gain1 gamma ctrl1 Range 63 63 63 63 63 63 63 Initial value 34 36 36 42 36 36 40 Description Adjusts for DC level of R,G,B signal before doing the gamma adjustment. The greater the value, the darker it gets Adjusts for DC level of R signal before doing the gamma adjustment. The greater the value, the darker it gets Adjusts for DC level of B signal before doing the gamma adjustment. The greater the value, the darker it gets Adjusts the gain of black side on the gamma curve (R,G,B) Adjusts the gain of black side on the gamma curve for R Adjusts the gain of black side on the gamma curve for B Adjusts the change point of the black side on the gamma curved line of R,G,B signal. The greater the value, the more the point moves towards black Adjusts the change point of the black side on the gamma curve for R. The greater the value, the more the point moves towards black Adjusts the change point of the black side on the gamma curve for B. The greater the value, the more the point moves towards black Adjusts the gain of white side on the gamma curve (R,G,B) reserved for R gamma gain2 (not used) Adjusts the gain of white side on the gamma curve B Adjusts the change point of the white side on the gamma curved line of R,G,B signal. The smaller the value, the more the point moves towards white reserved for R gamma ctrl2 (not used) reserver for B gamma ctrl2 (not used) Adjusts the gain of R,G,B voltage (applied to LCD) Adjusts the gain of R voltage (applied to LCD) Adjusts the gain of B voltage (applied to LCD) Adjustment for the brightness of R,G,B after doing the gamma adjustment. No change on the gamma curve. The greater the value, the darker it gets Adjustment for the brightness of R after doing the gamma adjustment. The greater the value, the darker it gets Adjustment for the brightness of B after doing the gamma adjustment. The greater the value, the darker it gets
7
R gamma ctrl1
63
36
8 9 10 11 12
B gamma ctrl1 gamma gain2 reserved B gamma gain2 gamma ctrl2
63 63 63 63 63
36 16 36 36 34
13 14 15 16 17 18
reserved reserved sub contrast R sub contrast B sub contrast sub bright
63 63 63 63 63 63
36 36 40 37 42 30
19 20
R sub bright B sub bright
63 63
34 37
5-4
Samsung Electronics
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