Philips 22PFL3505D/F7 no power

[budm]

Re: Philips 22PFL3505D/F7 no power

No need to remove, they are just check points.

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

No need to remove, they are just check points.

ok thats what i was thinking ty.

[budm]

Re: Philips 22PFL3505D/F7 no power

And I can see two more power supplies test points (this power supplies has 8 outputs!). Test these two additional test points with ref. to ground.

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

And I can see two more power supplies test points (this power supplies has 8 outputs!). Test these two additional test points with ref. to ground.

ok

[budm]

Re: Philips 22PFL3505D/F7 no power

Service manual: Not sure if it matches your chassis number.

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

1) 430 red on ground
2) 450 black on ground
3) 153 red on ground
4) 001 red on ground
5) 126 red on ground
6) 206 bothways

and left hand side 456 black on ground right hand side 403 red on ground. i dont know if i you needed the other info but i put it in anyway.

[budm]

Re: Philips 22PFL3505D/F7 no power

Number 4 looks bad, try set the meter to 200 Ohms scale and see if it still showing low Ohm reading.
This #4 power supply is one of the 5v power supply that gets regulated down to 3.3V by the regulator circuits.

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

Number 4 looks bad, try set the meter to 200 Ohms scale and see if it still showing low Ohm reading.

ok

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

ok

00.8

[budm]

Re: Philips 22PFL3505D/F7 no power

OK, Lift one leg of that Diode that is connected to the #4 test point and measure the same point again still using 200 Ohm scale.

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

OK, Lift one leg of that Diode that is connected to the #4 test point and measure the same point again still using 200 Ohm scale.

ok

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

ok

00.7 both ways EDIT ive finaly got you mr bond!

looks like its bad.

[budm]

Re: Philips 22PFL3505D/F7 no power

So the reading is 0.7 on both legs of the Diode D639?

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

So the reading is 0.7 on both legs of the Diode D639?

yes.

[budm]

Re: Philips 22PFL3505D/F7 no power

Good, you found the problem.
Here is the diagram and part list.
D639 is FR151BD.
Good luck.

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

Good, you found the problem.
Here is the diagram and part list.
D639 is FR151BD.
Good luck.

ok. thanks for the help.

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

cant find that part on digi key am i doing something wrong?

[budm]

Re: Philips 22PFL3505D/F7 no power

Here is the spec sheet.
50V 1.5A Fast recovery Diode, FR151.

[budm]

Re: Philips 22PFL3505D/F7 no power

http://www.digikey.com/scripts/dksea...=72&PV1291=136

Non stock, you may have to contact them to see what else they have, you can go for higher voltage and current in DO-15 case style.
Original spec is 50V, 1.5A, 150nS Recovery time, Vf 1.2V, DO-15. Just tell them you are looking for FR151 sub.

[Phaihn]

Re: Philips 22PFL3505D/F7 no power

http://www.digikey.com/scripts/dksea...=72&PV1291=136

Non stock, you may have to contact them to see what else they have, you can go for higher voltage and current in DO-15 case style.
Original spec is 50V, 1.5A, 150nS Recovery time, Vf 1.2V, DO-15. Just tell them you are looking for FR151 sub.

ok