Philips 47pfl6877h/12

[Jimmy1979]

Hello
I need help with my tv.
Suddenly tv won't turn on.
Led standby lights on for a second and then goes out and tv doesn't do nothinh.
I measured 3,3 volt standby but no flashing led standby.
I think there is a problem with the power supply but i'm not sure.
It could also be the mainboard.
Someone with experience with this model?
Grtz

[dskall]

Re: Philips 47pfl6877h/12

Need voltages from connector that goes from power supply board to main board. Will need pin#-pin label-Pin voltage in standby-Pin voltage when pushing power button and picture of connector on power supply board.
Format:
Pin# - Pin Label - Pin Voltage standby - Pin voltage power on
1 - XXXXXXX - XXv - XXXv
2 - XXXXXXX - XXXv - XXXv
3 - XXXXXXX - XXXv - XXXv
4 - etc.

[Jimmy1979]

Re: Philips 47pfl6877h/12

Need voltages from connector that goes from power supply board to main board. Will need pin#-pin label-Pin voltage in standby-Pin voltage when pushing power button and picture of connector on power supply board.
Format:
Pin# - Pin Label - Pin Voltage standby - Pin voltage power on
1 - XXXXXXX - XXv - XXXv
2 - XXXXXXX - XXXv - XXXv
3 - XXXXXXX - XXXv - XXXv
4 - etc.

Hello dskall,

Pin 1=3,25v
Pin 2 = 2,9v
Pin 3 = 0
Pin 4 = 0
Pin 5 = 0
Pin 6 = 0
Pin 7 = 0
Pin 8 = 0
Pin 9 = 0
Pin 10= 0
Pin 11 = 0
Pin 12 = 0
Pin 13 = 0
Pin 14 = 0


Update
I placed jumper pin 1 3,3v vsb with pin 2 standby and
No 12v output on pin 5 and 6.
And another jumper pin 1 with pin 11 backlight on.
Nothing happends.
Any idea?

[dskall]

Re: Philips 47pfl6877h/12

Also need pin description

[Jimmy1979]

Re: Philips 47pfl6877h/12

Also need pin description

Quote:
Originally Posted by dskall View Post
Need voltages from connector that goes from power supply board to main board. Will need pin#-pin label-Pin voltage in standby-Pin voltage when pushing power button and picture of connector on power supply board.
Format:
Pin# - Pin Label - Pin Voltage standby - Pin voltage power on
1 - XXXXXXX - XXv - XXXv
2 - XXXXXXX - XXXv - XXXv
3 - XXXXXXX - XXXv - XXXv
4 - etc.
Hello dskall,

Pin 1=3,25v vsb
Pin 2 = 2,9v standby
Pin 3 = 0. Gnd
Pin 4 = 0. Gnd
Pin 5 = 0. 12v3
Pin 6 = 0. 12v3
Pin 7 = 0. Vsnd
Pin 8 = 0. Vsnd
Pin 9 = 0. Gnd
Pin 10= 0. Gnd
Pin 11 = 0. Bl-on
Pin 12 = 0. Bl-dim
Pin 13 = 0. Bl-I-ctrl
Pin 14 = 0. Pok

[dskall]

Re: Philips 47pfl6877h/12

Unplug connector from powerboard to mainboard. jumper pin 2 to pin 3 and through about 600ohm resistor see what you get.

[Jimmy1979]

Re: Philips 47pfl6877h/12

Unplug connector from powerboard to mainboard. jumper pin 2 to pin 3 and through about 600ohm resistor see what you get.

Now i got pin 5 and 6 12v

[budm]

Re: Philips 47pfl6877h/12

What do you get now on pin 14 (POK, Power OK???) when you have the 12V?

[Jimmy1979]

Re: Philips 47pfl6877h/12

What do you get now on pin 14 (POK, Power OK???) when you have the 12V?

POK=0,01v

[Jimmy1979]

Re: Philips 47pfl6877h/12

What do you get now on pin 14 (POK, Power OK???) when you have the 12V?

Now i have psu normal
Working 12v and backlight working.
POK =3,25v

Now i know for sure that mainboardbis the problem.

[rickou]

Re: Philips 47pfl6877h/12

I had this set once. Can you check C904B and R915?

[Jimmy1979]

Re: Philips 47pfl6877h/12

I had this set once. Can you check C904B and R915?

Capacitor and resistor testing good.

[Jimmy1979]

Re: Philips 47pfl6877h/12

Does any one know wich components fail on the mainboard? And is there option to replace these. Maybe i could try before buying new mainboard.

[dskall]

Re: Philips 47pfl6877h/12

All I would know is to check your voltage regulators. You can check if there is any repair kit for them.

[rickou]

Re: Philips 47pfl6877h/12

I will post soon I'm at work.

[budm]

Re: Philips 47pfl6877h/12

If you are able to force the backlights on and with all the cables back in place but you do not see the images on the screen or no sound from the source then you have more that just bad PS-ON signal problem.

[Jimmy1979]

Re: Philips 47pfl6877h/12

I will post soon I'm at work.

Ok

[Jimmy1979]

Re: Philips 47pfl6877h/12

I will post soon I'm at work.

Any idea?

[Jimmy1979]

Re: Philips 47pfl6877h/12

I found a used mainboard same number S 310432868283
Only this board was used on a 42 invh an i have a 47inch
Does someone know if this is plug and play? Or do i have to change settings?

[Jimmy1979]

Re: Philips 47pfl6877h/12

can someone help me with installing the other mainboard in service menu i know you have to enter 062596i if i have picture and if i don't 062598i for the panelcode.