Hisense 65H6570F Logo shows then turns off

[dskall]

Re: Hisense 65H6570F Logo shows then turns off

Led tester would probably tell you. It's not always reliable since it doesn't load the leds like tv's power supply.

[Diah]

Re: Hisense 65H6570F Logo shows then turns off

Is it at all possible that the difference in voltage is due to lower port having less LEDs to drive? 86V is very close to being 2/3 of 136V. If the TV has 5 LED strips, and the top port driving 3 of them and the bottom 2 of them, 136-86 split is not awful.
Again, I am wishing this not be a BL issue since I cannot realistically fix that.

if you upload good photo on the whole back of the TV , from the chassis design can tell how many strips there and do correct calculation

from the chart LED BL one channel Max 120V 900Ma. so we have the Group of 136V are over load.. i remarked the 86V as its correct range

[USmechS]

Re: Hisense 65H6570F Logo shows then turns off

if you upload good photo on the whole back of the TV , from the chassis design can tell how many strips there and do correct calculation

from the chart LED BL one channel Max 120V 900Ma. so we have the Group of 136V are over load.. i remarked the 86V as its correct range

Thank you for the clarification about the voltages. It makes perfect sense.
I think the TV has 5 strips of LED. the picture of the back of TV is attached. If it is not clear, I can see only 5 sets of pin placements on the back on each side.

[Diah]

Re: Hisense 65H6570F Logo shows then turns off

Thank you for the clarification about the voltages. It makes perfect sense.
I think the TV has 5 strips of LED. the picture of the back of TV is attached. If it is not clear, I can see only 5 sets of pin placements on the back on each side.

yes its5 strips, so the group will be 2 1/2 strips , so if you are afarid to take the screen apart. i will explain to you here matter and the rest i will leave it to yours creative ideen.

with out BL socket connected you messured 197V on each group. how ever the chart say max 120 V. so the LEDs are part of the circuit to adjust the output to less than 120V:

yours messurments after you plugged back the BL socket, you got 137V which its overload and one with 86V which to me normal. so the the one 137 are over load.

so with out socket Tv will not work as there are overload or open circuit. but if you get now Normal filament lamp we put it in the way of (N) of the groups which are 137V , this mean LED+ will go direct to the strips and the wire of LED- (N) come back to the socket.. we put the lamps one wire to the LED- coming back from strips and the other will go to the socket direct.

easy way you can try the LED- of the overloaded group cut it before the socket and connect the lamp between. 50 Watt lamp i think will be enough... give try if it work good if not bring the wire back and find some one help with change LEDs

good luck

[USmechS]

Re: Hisense 65H6570F Logo shows then turns off

Thank you very much, it is a solution that can work.

[dayv25]

Re: Hisense 65H6570F Logo shows then turns off

Could you possibly share the recovery firmware? I have the same model tv with the same exact issue. Did you ever get it fixed?

[jsdffxf]

Re: Hisense 65H6570F Logo shows then turns off

The method of restoring hisense to factory Settings: Power off - press the TV button to switch on the AC power and wait for 15 seconds, then the screen will indicate that the system is recovering, you can release the button, wait for 3/5 minutes, if you can't restore the TV, you can only open the TV for repair, in addition, I want a pkg file, thank you!