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LCD TVs - LED

UN40J5300 display problem.

Televisor Samsung UN40J5300

Televisor Samsung UN40J5300

seekude
seekude
2.085
hace 5 años
hace 5 años
Hello everyone, the mentioned TV has the following behavior: When turning on, the display is in refresh mode (colors, red, green, blue, cyclic etc). It has audio, I put cable and can be heard when one changes channels normally. The following was tested: another main was tested, it presents the same problem (therefore it is not in agign mode). It was cleaned and continuity was checked in the man / t flex with, and the 2 flex tcon / display. The tcon lights both LEDs. Tensions were checked in it, all OK. I would like to know if someone was in the same situation, since I am about to ask the TCON to rule out. regards
gilar
gilar
6.594
hace 5 años
hace 5 años
AGIN-MODE (autonomous mode) does not necessarily come into operation if activated from service mode, it is enough that the signal pair CLK + and - are not present and automatically comes into operation, what causes this defect? the first, it must be verified that the cables are not open, the second is that this signal is generated by the micro from the main board, and the last one is entering signals or frequencies that are generated from the power source, which it is done is to isolate cable from lvds and t-con, and even to the same power source, in very extreme cases the AGIN-MODE signal is canceled by cutting that signal in the t-con ... greetings
seekude
seekude
2.085
hace 5 años

Thanks for the explanation, and when changing the main and finding myself in the same situation, I verified that this pattern, already depended not only on the main, I will wait to receive the tcon and comment, and discard main, and cables, measured from end to end at the ends even in plate.

Responder
seekude
seekude
2.085
hace 5 años
hace 5 años
Good... Change the T-CON and the TV works normally, when measuring voltages and signal lvds I find that the measurements are equal without variation with the t with which I entered in aging mode, I put it back and it is still in aging, it occurred to me to read the eeprom of the new t with, and load the backup to the one that failed, well, I did it and when testing this it worked normally, so I assume that they were erroneous data in it, since when comparing the 2 dumps in which failed there are several bits with 0 unlike the one that works normally. In case someone needs it: dump eeprom
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