Hisense TV 40d37 turns logo on and off
Hello my friend, do you have the TV diagram ?? In the LED drive specifically we have to focus, or pass me what drive it takes so we look for the data, ... When do you energize it at how many volts does the b + led raise? since you say that the whole strip is fine ... and if in the b- there is some voltage, it will also control and comment on me ...
sorry I'm late
I don't have the diagram and the driver it has is the sn51dp
Voltage in b + I have 60v at the time I turn on the logo and the voltage drops at the time the logo goes out and disconnecting the LEDs I have 81v and the voltage of the LEDs turns off and in b- I have 0.25v
Does it have a single strip ??? how many led in series. it would be nice to upload a photo of the drive zone led b + led, mofet
The solution was that it brought three 1.6ohms resistors which was a total of 4.8ohms
And I modified that lowering it to 3.8ohms and it turned on well and until then, it continues to work and the alpareser resistors are not turned off are the ones that mentioned me
20180313_145434.jpg [2.11MB] 20180313_145410.jpg [2.24mb]
Bring 5 strips of 9 LEDs per strip
the LEDs are 6v then, 6x9 = 54 and you have 60v in led +. I already upload a photo. in leg 5 of the (sn51dp), you must have two earth resistors, comment on the desoldalos values and tell me
make me a diagram by hand of that line with its resistors, I can not upload a photo, which is of leg five, you have to modify it to lower the current to led