Samsung UHD UN50JU6500

[budm]

Re: Samsung UHD UN50JU6500

Ok I didn't realize I had the black lead on pin 2 (which I thought was pin 1). I tested it briefly this morning and got much better numbers similar to post#3. I will post the voltages and variance when I get back from work and if not too tired lol.

Ground pins are pin 10, 11, and 12.
Pin 1 is not GND pin anyway.

[lfhlaw]

Re: Samsung UHD UN50JU6500

okay finally got time to post.

PS-on is 3-4 Volts
pins 3,5,7,9 fluctuate from 8 v to 13 v
pins 4,6,8 still show about 3-4 volts.

the A13v and the 8V standby both fluctuate from 9 v to 13 v.

with main board disconnected.

Testing the pullup resistor with ground gives me a fluctuation of 8v to 13 v as well

[lfhlaw]

Re: Samsung UHD UN50JU6500

Well. I did buy a new Power Supply board and that fixed the whole problem. still not sure what caused it to fail though...so a bit concerned that it might happen again after fixing it, but will see what happens.

[nomoresonys]

Re: Samsung UHD UN50JU6500

Have seen bad voltage regulating diodes on psu make voltages fluctuate like that.