20200112_234514.jpg [2.96MB] 20200112_234514.jpg [2.96MB] BN44-00622A-D 40-6100-6400-6800 rs802.pdf [233.76kb] 20200111_200835.jpg[4.41mb] 20200111_200853.jpg [3.50mb] Hello Colleagues:
I received this Samsung UN40F6100AG TV that was repaired 2 months ago. They are 7 strips of 13 led each of 3 volts.
In their opportunity they changed about 25 LEDs and the strips were tested with a high reliability tester at different consumption values.
Since it is not a common source at the time I do not know under their tension
I add source circuit and according to reports the voltage of the LEDs would be lowered by raising the value of the R on pin 12 of OD1 of 10k
about 15k except for the best opinion of a colleague
Looking at the form there are 4 shocks BB9301 9401 9101 9201 that go to the CLN802 file maybe there is the thing to lower the LEDs.
2020-01-10-0001.jpg [2.46MB]
In LG I have modified the voltage of the LEDs by MS or by altering the R of F of the mosfets. In this case I don't know the parameters
since there are several series that go to blanking 10 cables. I have already changed 29 LEDs burned or in poor condition. for short open or consume less and turn on little.
I add that this source in the connector that goes to blanking CNL802 except for error in diagram that I made has 4 individual outputs. 3 handle two LED strips in series that are 26 each and the rest a single strip. of 13 LEDs, unless you find a bridge at the source and the exchange thing, it would be 2 series of diodes.
I add a complete diagram of the source that can serve some colleague.
I will appreciate if any colleague had this problem and I solve them and inform me about it - and if it can be done by MS.
Best regards
july gramont
