tv lcd Philips 42pfl9632d/10 Power board ko

[vinceroger69]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

To clarify the tv still works in normal tv mode ok?
but with a hdmi source you have issues and it turns off?

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

Terrible news... There is another problem...
The tv work ed fine for 2 days... Without any kind of problem... I see a lot of film, anD yesterday i gamed with ps4 (hdmi) for around 4 hours... Today begin another problem, i turned it on with hdmi, and it start to restart by self... It stai on for some second anD turned off automatically... Now i try to see Normal tv and the problem isn't present! I think that there is a ghost inside this tv

[budm]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

Thanks for the follow-up, I am glad it is just bad diode in the stby power supply, and I guess the power MOSFET on the mian power supply board were not shorted after all otherwise the main fuse would have blown.

109 posts, whew!
You worn me out on this one.

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

Today arrive the diodes, i changed the 6b05 and the tv work perfectly...

Thanks to everybody for the help, budm you are a genius

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

I found the other two, are difficult to testing for the position, anD i don't want to disoldering before the time.
I ordered the 6b05 and this two.. When arrive i replace them.

For you can resolve the problem?

[vinceroger69]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

ok clean the board and have a search for the other diodes budm mentioned the board printing is probably hid under the dirt/dust etc.

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

what readings are you getting on the two diodes 6bo5 6b06? in diode mode on your meter test across each diode take reading then reverse the probes and take the reading again.This is with the tv unplugged of course.
if you get a clean dry paint brush etc give the area a good clean and dust of etc if you can try to take a good clear picture i can try to point the part to test out too you.

i make an error in last post, 6b05 is bad, haven't reading in each side.
60b06 is good, in diode mode, 400 reading and no reading when i invert the probes

[vinceroger69]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

6b05 is good
6b06 i think that is bad

i didn't find 6b07 and 6b08

the two resistor... 3b60 is a 155, and is good
3b64 is a 0 ohm resistor

what readings are you getting on the two diodes 6bo5 6b06? in diode mode on your meter test across each diode take reading then reverse the probes and take the reading again.This is with the tv unplugged of course.
if you get a clean dry paint brush etc give the area a good clean and dust of etc if you can try to take a good clear picture i can try to point the part to test out too you.

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

OK, you do have DCV to run the primary driver circuit.
You need to check those diodes I circle in the PDF. 6B05, 6B06, 6B07, 6B08
Do you have the 12VDC at 1P11 connector?
I would also check those two resistors (2M2 Ohms) 3B60, 3B34.

6b05 is good
6b06 i think that is bad

i didn't find 6b07 and 6b08

the two resistor... 3b60 is a 155, and is good
3b64 is a 0 ohm resistor

[budm]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

OK, you do have DCV to run the primary driver circuit.
You need to check those diodes I circle in the PDF. 6B05, 6B06, 6B07, 6B08
Do you have the 12VDC at 1P11 connector?
I would also check those two resistors (2M2 Ohms) 3B60, 3B34.

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

SSB PS.
It should have +12VS which is used to turn on the switched power MOSFET 7B06 to provided the +5V.
You need to be able to read the diagram otherwise we will be spending days explaining as how to test what to test.
More likely right now the drive circuit in the primary side of the SSB power supply is not working.
You should have about 330VDC on the main filter caps 2B31, 2B50.

on the 2b31 cap i have 310 DC

[budm]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

See my edited post 98.

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

Yes i downloaded it, but i'm not very able to understand it...
Now i Restudy it

[budm]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

Did you download the manual?

[budm]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

SSB PS.
It should have +12VS which is used to turn on the switched power MOSFET 7B06 to provided the +5V.
You need to be able to read the diagram otherwise we will be spending days explaining as how to test what to test.
More likely right now the drive circuit in the primary side of the SSB power supply is not working.
You should have about 330VDC on the main filter caps 2B31, 2B50.

[vinceroger69]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

Maybe try to test the fuse like budm has asked black probe on tv chassis red probe on each side of the fuse what voltage do you get just be carful as mains voltage in the area your testing

There are two fuses as you can see from the print on the board as I marked in the red box.
Unless one of the fuse is not installed, the pictures are very poor so I cannot really tell.
You can also check and see if there are any DCV at both ends of the fuse with ref to the chassis GND.

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

I also need the pictures.

and here there are the two section that you are asked.
But the two blue component with the 220 number, are caps?

[budm]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

the number is 310432853602
i just checked the white fuse dmd 1B33 and is ok

There are two fuses as you can see from the print on the board as I marked in the red box.
Unless one of the fuse is not installed, the pictures are very poor so I cannot really tell.
You can also check and see if there are any DCV at both ends of the fuse with ref to the chassis GND.

[budm]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

well from what i understand theres a seperate 5 volts section on the mainboard that sends a voltage to the power supply that turns on a relay on the psu and then power supply outputs i may be wrong but budm im sure will confirm whilst your waiting maybe take some clear pictures of the mainboard connectors and any writing by them which tells us what the connector pins do it also maybe worth while in doing this for the power supply comnncetors too.

The 5V2 is used for powering the power relay (5VDC coil) on the main power supply board, the connector 1P11 of the SSB main board is connected to the 1P11 of the Main power supply board.

[Bibu]

Re: tv lcd Philips 42pfl9632d/10 Power board ko

I need the numbers as printed on the barcode sticker, I cannot see it very well, 3104328????????.
You also need to check the SMD fuse on the bottom side of the board.

the number is 310432853602
i just checked the white fuse dmd 1B33 and is ok