tv lcd Philips 42pfl9632d/10 Power board ko

[budm]

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

Top and bottom side of the main board so we can look at the small power supply on that main board? We need to get that 5V from the main board power supply.

[Bibu]

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

The relay is turned on when the main power supply board receives the 5V from the main board power supply. I do not get to see good clear pictures of the whole boards in post 58, I waisted so much time with OP on the 100 Ohms resistors already, plus try finding the diagrams, etc. and not getting any where with the OP.

Budm sorry for all time that you waist with my problem, i think that a thanks isn't enough.
See if this picture is better, or is better two different photos of the same board?

[budm]

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

The relay is turned on when the main power supply board receives the 5V from the main board power supply. I do not get to see good clear pictures of the whole boards in post 58, I waisted so much time with OP on the 100 Ohms resistors already, plus try finding the diagrams, etc. and not getting any where with the OP.

[martino]

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

Wondering if this gets measured in DC voltage and if its plugged in (just to be sure to confirm that there is not even a 160 dcv standby)

[vinceroger69]

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

yes thats correct i was just confirming. I will have a read of the whole of this thread and download the manual ive just read the relay isnt being energised so you wont get the voltage on those capacitors anyway so we need to see why the relay isnt being turned on.

[Bibu]

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

how are testing these capacitors black lead on negitive of the capacitor red lead on positive?

Yes, isn't correct?

[vinceroger69]

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

how are testing these capacitors black lead on negitive of the capacitor red lead on positive?

[Bibu]

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

do you get any voltage on the large main capacitors on the hot side of the psu please remember and be carefull as this is the hot side of the psu and carries mains voltage.

Only 1V in all two caps...

[vinceroger69]

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

do you get any voltage on the large main capacitors on the hot side of the psu please remember and be carefull as this is the hot side of the psu and carries mains voltage.

[Bibu]

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

I tested the the V in the first part of the main board, anD i have 220V in the connector. The fuse of the main board is good and the same for the resistor of 1 ohm

[Bibu]

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

I think the best thing too do is too put any parts you have removed back on to the board and double check your soldering etc then re connect all connectors and then we can start all voltage readings from the basics and may be test your multi meter with a battery too make sure its reading the correct voltages first.

Thanks for your help, i just put black all the parts that i removed for testing. All solder are good ( i'm not able to test and found the problem, but i'm able to solder ).

The multi meter are good, i use two different, and One have two weeks

[vinceroger69]

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

I think the best thing too do is too put any parts you have removed back on to the board and double check your soldering etc then re connect all connectors and then we can start all voltage readings from the basics and may be test your multi meter with a battery too make sure its reading the correct voltages first.

[budm]

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

"The strange is that the speakers are connected to the main board... if there isn't V, why they work?" That why are you 100% SURE that there are NO Voltages on the connectors of the main board, power supply board? There must be measurement errors.

[Bibu]

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

The 5V is generated by the power supply on the main board, so you need to find out of the main board is getting the main AC feeding the 2-pin power connector on the main board or not.
It is time for you to upload pictures of the whole back side of the TV so we can see all the boards and how they are connected together.
What is the history of this TV? Was it hit by power surge? drops? someone worked on it before you? etc.

the tv is mine, no power surge, no drops... some week ago decide to die, without motivations. no atoner people work on it before.
as soon as i will post the photo of the back side tv.
The strange is that the speakers are connected to the main board... if there isn't V, why they work?


i say alone. the main board take directly the 220V AC from the black connector of the power supply, for this reason the speaker works

[budm]

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

The 5V is generated by the power supply on the main board, so you need to find out of the main board is getting the main AC feeding the 2-pin power connector on the main board or not.
It is time for you to upload pictures of the whole back side of the TV so we can see all the boards and how they are connected together.
What is the history of this TV? Was it hit by power surge? drops? someone worked on it before you? etc.

[Bibu]

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

Main power supply board connectors.
Do you have 5V2 (notes: this Voltage is generated by the power supply on the main board, chassis GND ref.)? See the large version of the SCH.
Do you have 25V_HOT (GND ref to negative leg of main filter cap in the DC primary)?

no,with all boards connected i haven't voltage, no 5v and no 25V

[budm]

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

Main power supply board connectors.
Do you have 5V2 (notes: this Voltage is generated by the power supply on the main board, chassis GND ref.)? See the large version of the SCH.
Do you have 25V_HOT (GND ref to negative leg of main filter cap in the DC primary)?

[budm]

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

R3014, 3017
We are not getting any where here.
Recheck the MOSFETs and show the resistance reading between S and D.

[Bibu]

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

Isn't brown black brown GOLD and violet?

[budm]

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

Budm but the resistors that i post Now in photo aren't 10 ohms? All calculator program tell this.
In what particular point of the cold side would you like that i test?

That is 100 Ohms resistor (Brown, Black, Brown) 5% MOX (Metal Oxide) Flame proof.