New Power Supply and Main board Still No Power

[Exp0]

Re: New Power Supply and Main board Still No Power

PFC booster is good just got a reading of 396 VDC with the stand by and PS ON jumped together. I must of not had a good connection between the Stand by and PS ON last time. What would you check next BudM?

[budm]

Re: New Power Supply and Main board Still No Power

OK, so you now have properly connected the resistor to force on the power supply OK (you now have boosted PFC) so we now know that the main board is not working to turn on the power supply board.
You should now be able to force on the backlights by properly hook up another resistor to force on the backlights but I would not worry about that right now.
But at this point we know that you do have main board problem that you need to deal with.

[anmol]

Re: New Power Supply and Main board Still No Power

brown wire pin 2=0.88v

ac off det. should be about 3.00 volt.

wbr

[budm]

Re: New Power Supply and Main board Still No Power

Anmol, thanks for the training manual.

[Exp0]

Re: New Power Supply and Main board Still No Power

anmol
Thanks! for the training manual that's great information to have.
Using the old power supply I feel like i should list the voltage readings again for reference.

Black wire pin 1= 3.30v
brown wire pin 2=3.30v
red wire pin 3=0.00v
Orange wire pin 4=0.00v
yellow pin 5=0.00v
green pin 6=0.00v
blue pin 7-0.00v
dark blue pin 8=0.00v
grey pin 9=0.00v
black pin 10=0.00v
brown pin 11=0.00v
red pin 12=0.00
SPACE at Pin 13
White pin 14=0.00v
Yellow pin 15=0.00v

BudM
Thank you for all the help. I'm going to call Shop Jimmy in the morning to see if i can get a replacement main board.

Also i tried jumping the back lights on and i am not getting the high voltage power to the back lights. I attached a diagram using amnol handy manual to show you were i am taking my reading (circled in black). Also a pic of the same connectors circled in RED in the second picture of my actual PS board.


Thanks for all the help!

[budm]

Re: New Power Supply and Main board Still No Power

There is a concern that you still do not get the backlghts when you force on the backlights.

[Exp0]

Re: New Power Supply and Main board Still No Power

Just wanted to keep you keep you guys in the loop that i have not given up on this tv just on the hunt for parts. The power supply for this TV is in high demand.

[Moreno83]

Re: New Power Supply and Main board Still No Power

Exp0 , did you try the jumper with both PS? So you know the replacement is good also?

[Exp0]

Re: New Power Supply and Main board Still No Power

Yes I tested both and according to the training Manuel provided by amnol on page 13 under dead set. Both PS bad.

[Exp0]

Re: New Power Supply and Main board Still No Power

Successfully repaired the TV. The main board from Shop Jimmy was good. The PS from the WISINY.com was bad. After getting a new PS board from Tri-State Moduel the TV powered on nicely. ( scared the crap out of me because the volume was super loud, I thought I had zapped myself. ) The original main board was also good so I will be getting some of my money back for returning the main board I ordered.

THANK YOU EVERYONE FOR ALL YOUR HELP. looking forward to the next repair. Also I will be donating 10% of any profit gain from this TV.

[Pragmatiko]

Re: New Power Supply and Main board Still No Power

Dead, without any led on.

3,3V stby are missing.

Pin 4 of IC6201 was 2,8Volt (very low) cause was D6205 (seem good)

[ricosavy]

Re: New Power Supply and Main board Still No Power

Working on kdl-40ex600 have standby 3.3 no led.I jumpered standby 3.3 to power on with 1k resistor with wire that goes back to main board disconnected.There was no other voltages present measured main cap at 60v .Then I noticed on top tv burning smell and a little smoke coming out.this mean the panel is shorted out.