philips 37pfl5522d lcd tv.flashing red light

[nbetts]

Hi all hope someone can give me some advice.Tv wont come on from stand-by.Blue light goes off then red light will have 1 long flash follow by 2 quick flashes and then keeps repeating sequance.
Read alot on here about bad capacitoirs and resisters.Are these on the psu board or on the av board.Also seen someone mention about a resistor 3318??
Could do with some help with the best solution,have found an psu board and an av board for £30 each for this model.
Would it be best to change the board and which one or to try and change the capacitors or resistor.
Looking forward to some advice.

[tom66]

Re: philips 37pfl5522d lcd tv.flashing red light

2 flashes (ignore long flash) is 12V fault, common fault is a bad cap on PSU on some Philips LCDs.

[nbetts]

Re: philips 37pfl5522d lcd tv.flashing red light

hi tom is it best to change the bad cap or replace the psu board. if best to change the bad cap and if so which one is it on the psu board. thks.Neal

[tom66]

Re: philips 37pfl5522d lcd tv.flashing red light

Can you provide some pictures of the set's boards and also of the model number tag which should have the chassis number e.g. Q533.7LA (near 37PFL5522D/xx)

[nbetts]

Re: philips 37pfl5522d lcd tv.flashing red light

pics as requested not very good quality though.cant find chassis no. Were would it be???Hope this helps tom. Thks.Neal

[tom66]

Re: philips 37pfl5522d lcd tv.flashing red light

Chassis number usually on same sticker as "37PFL5522D".
I cannot see anything in those pictures, as I do not have this TV in front of me, I am therefore working blind.

[nbetts]

Re: philips 37pfl5522d lcd tv.flashing red light

Do you need pics in a different format??PSu board is made by delta DPS-168bp.Cant seem to find a replacement board.would a psu board made by philps work as i can find one on e-bay ok?? p.s caps on board look ok and are not bulging.

[nbetts]

Re: philips 37pfl5522d lcd tv.flashing red light

Chassis number is LC7 2E LA

[nbetts]

Re: philips 37pfl5522d lcd tv.flashing red light

Can get a Philips psu 3122 423 31942 of e-bay. Seller states this is compatible for this tv.Is it ok to replace the delta 168bp board with this one and are all the connections in the same place. Thks again .Neal

[tom66]

Re: philips 37pfl5522d lcd tv.flashing red light

I don't know but I do recall both Philips and Delta making power supplies for this set -- if all connectors are the same (I can't tell you if they are) then it should be fine.

[nbetts]

Re: philips 37pfl5522d lcd tv.flashing red light

thks tom

[Globulus]

Re: philips 37pfl5522d lcd tv.flashing red light

2 flashes (ignore long flash) is 12V fault, common fault is a bad cap on PSU on some Philips LCDs.

Are you talking about just the electrolytic caps here or are any of the other types of caps known to suffer from any problems?

I have ordered a set of Panasonic caps to replace my Lelon ones in my 42PFL9603D. As I wrote in https://www.badcaps.net/forum/showth...255#post373255, four of the seven Lelons did not exhibit great results when measuring them in-circuit using a cheap ESR meter, but not badly enough for me to think that they are actually at fault.

But - without desoldering any components - I have not found anything obviously wrong so I am still crossing my fingers, hoping that the electrolytic cap replacement will be enough. I will probably know by the end of this week.