Hi all:
Again here to ask for new help.
The previous time I'm still waiting for power
get a T-con Runtk 5249TP, when you receive it
I will communicate results.
This time it's a problem on an I-Joy TV, with a
problem in the power supply HKL-240101 that in principle
did not light anything, I changed the resistance R-910 the R-907 the Mosfet Q901 (JCS7N65FB) and U901 (OB2273).
After these changes the power LED goes to blue level but
the voltage of the backlight LEDs is 12 volts only, so they do not light up. I try them with an outside source and they
they illuminate correctly.
I test the integrated circuit U1 (OB3350cp) and the voltages I measure are:
Pin 1 = 3.48v
Pin 2 = 0 v
Pin 3,4,5 and 6 = 0 v
Pin 7 = 0.32 v
Pin 8 = 4.37 v
Which tells me that this integrated is wrong, but the problem is that I can not find it, I would like to indicate one that was similar to this one.
Thanks in advance and greetings.
Again here to ask for new help.
The previous time I'm still waiting for power
get a T-con Runtk 5249TP, when you receive it
I will communicate results.
This time it's a problem on an I-Joy TV, with a
problem in the power supply HKL-240101 that in principle
did not light anything, I changed the resistance R-910 the R-907 the Mosfet Q901 (JCS7N65FB) and U901 (OB2273).
After these changes the power LED goes to blue level but
the voltage of the backlight LEDs is 12 volts only, so they do not light up. I try them with an outside source and they
they illuminate correctly.
I test the integrated circuit U1 (OB3350cp) and the voltages I measure are:
Pin 1 = 3.48v
Pin 2 = 0 v
Pin 3,4,5 and 6 = 0 v
Pin 7 = 0.32 v
Pin 8 = 4.37 v
Which tells me that this integrated is wrong, but the problem is that I can not find it, I would like to indicate one that was similar to this one.
Thanks in advance and greetings.
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