Philips/Magnavox lc370wx1 (sl) (04)

[plbproductions]

Philips/Magnavox lc370wx1 (sl) (04) lady was dragging to the street, she said it never been worked on (lied). the power light would come on (green) then flash off every 15 seconds the lcd would flicker at that point. open it up took out the power supply low and behold someone replaced he 2200uf 45v cap badly i may add it was loose barley any soldier round it. quick fix right. soldier it put it back hook it up work for about 5 minutes then did the same thing. so i order all the caps for the board figuring the starter caps might be bad to. got them yesterday replaced all of the caps except for the 2.2uf 45v. plug it in same thing. green light power button 15 seconds flash off flicker then green light again. the reason i didn't replace the 2.2uf 45v is because i order it but it came as a 2.2uf 450v instead of 45v. well i didn't figure it would hurt it so i changed it to. i get the same thing except now i get no flicker from the lcd. it has to inverters a master and a slave the master has a blue light which still comes on when it goes through the 15 second flicker cycle. should i replace the caps on the invertor boards to?

[budm]

Re: Philips/Magnavox lc370wx1 (sl) (04)

"Magnavox lc370wx1" are you sure that is the model number of the TV? That numbers are for the LCD Panel model number.

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

thats what is under the cover the actual model number is 37mf33id/37 that i could be and L or a 1

[budm]

Re: Philips/Magnavox lc370wx1 (sl) (04)

OK, upload good clear pictures of the back side of the TV so we can see all the boards and how they are all connected together.

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

here you go

[budm]

Re: Philips/Magnavox lc370wx1 (sl) (04)

OK, the picture of the power supply board, please.
BTW, 45V cap rating does not sound right.
We need to check the 24V out put and the dimming control line feeding the inverter board to see if they are steady.

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

sorry your right the 2.2uf was 50v I couldn't find a fat stubby cap so i replaced it with the long one you see on the board 180uf 450v

[budm]

Re: Philips/Magnavox lc370wx1 (sl) (04)

I forget to ask the pictures of the MASTER and the SLAVE Inverter boards so we can see the pictures of the caps.
BTW:
"the reason i didn't replace the 2.2uf 45v is because i order it but it came as a 2.2uf 450v instead of 45v. well i didn't figure it would hurt it so i changed it to. i get the same thing except now i get no flicker from the lcd."
I am a little confused about the flicker, are you saying that the backlights are flickering and now it stops flickering or the LED indicator light on the front panel is flickering?

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

back light flickering less than a second be right back going to unscrew the invertor boards

[Agent24]

Re: Philips/Magnavox lc370wx1 (sl) (04)

Just to clarify, the long skinny capacitor leaning over (that you replaced) is what value and voltage?

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

first pic is of the master 2nd is the caps 3 is slave 4th is caps 5th is the logic board i believe and 6th the part number and of course 7th is the amp

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

Just to clarify, the long skinny capacitor leaning over (that you replaced) is what value and voltage?

that is the 180uf 450v couldn't find a 30mmx36mm

[Agent24]

Re: Philips/Magnavox lc370wx1 (sl) (04)

that is the 180uf 450v couldn't find a 30mmx36mm

OK, thought for a moment maybe you had used a 2.2uF there which would definitely cause problems.

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

These are the caps i replaced doc is the shipping list

[budm]

Re: Philips/Magnavox lc370wx1 (sl) (04)

I see 3 caps on each inverter board, you should replace them unless you have ESR meter to verify them.

[budm]

Re: Philips/Magnavox lc370wx1 (sl) (04)

BTW, do you get pictures on the screen?
And the main problem right now is the flickering on the screen but with good pictures, right?

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

BTW, do you get pictures on the screen?

No picture backlight does not even come on

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

The blue light on the master inverter flash for a second to blue then goes out at the same time the power button light goes out

[budm]

Re: Philips/Magnavox lc370wx1 (sl) (04)

OK, that is more than one problem, but I thought you do have backlights but flickering.
I also need the P/N on the inverter board, the pictures of the boards are not clear for me to read numbers, it looks like 662-0283a??
So to get the backlights, we need to find out if it is getting the control signals BL_ON & dim, and 24VDC or not.

[plbproductions]

Re: Philips/Magnavox lc370wx1 (sl) (04)

OK, that is more than one problem, but I thought you do have backlights but flickering.
I also need the P/N on the inverter board, the pictures of the boards are not clear for me to read numbers, it looks like 662-0283a??
So to get the backlights, we need to find out if it is getting the control signals BL_ON & dim, and 24VDC or not.

It's 6632L-0283A i did have backlight up until i changed that 2.2ul 450v cap i put the original back in but it still doesn't work