samsung UN40F6300AF won't power up

[critical mass]

classic samsung I think but I can't find a bad cap.red led power light is on.When power button is pushed it blinks twice 5 times then goes back to solid red,then repeats.thx for the time.

[Hamie]

Re: samsung UN40F6300AF won't power up

With this model the power supply should work without the mainboard.

Unplug the power supply from the mainboard, does the TVs back light come on?

[critical mass]

Re: samsung UN40F6300AF won't power up

back light did not come on.

[doesntmind]

Re: samsung UN40F6300AF won't power up

Hello, I have same symptoms as OP

TV BRAND & NAME Samsung
Model No. UN40F6300AF
Model Code UN40F6300AFXZA
Version No. TU02
Manufactured Nov 2013

Power supply readings
Unit blinks 2 times when power switch is pressed. No backlight

pin#-desc-stby-p_on
01-B13V-0-0
02-P_Dim-0-Jumps to 2.1v then drops
03-B13V-0-0
04-ECO-0-0
05-Vamp-0-0
06-BLU-0-0
07-Vamp-0-0
08-GND-0-0
09-GND-0-0
10-GND-0-0
11-B5V-0-p
12-A5V-5.3V-5.3V
13-B5V-0-0
14-PS_ON-0-jumps to 3.3v then drops

[budm]

Re: samsung UN40F6300AF won't power up

Hello, I have same symptoms as OP

TV BRAND & NAME Samsung
Model No. UN40F6300AF
Model Code UN40F6300AFXZA
Version No. TU02
Manufactured Nov 2013

Power supply readings
Unit blinks 2 times when power switch is pressed. No backlight

pin#-desc-stby-p_on
01-B13V-0-0
02-P_Dim-0-Jumps to 2.1v then drops
03-B13V-0-0
04-ECO-0-0
05-Vamp-0-0
06-BLU-0-0
07-Vamp-0-0
08-GND-0-0
09-GND-0-0
10-GND-0-0
11-B5V-0-p
12-A5V-5.3V-5.3V
13-B5V-0-0
14-PS_ON-0-jumps to 3.3v then drops

Do the backlights come on and stay on when the cable between the main board and the power supply board is disconnected?
What are the Voltages on the power supply connector's pins when the connector is not connected to the main board?