Voltage level on LCD power supply board.

[lilmonk3]

Re: Voltage level on LCD power supply board.

I will go grab another one.. I think I have a crapsman in the camper

[lilmonk3]

Re: Voltage level on LCD power supply board.

Ok ... One of my probes wasnt all the way in the meter when I tested the big cap.. It is testing at 440.... I also double checked my other readings and sad to say they are still jacked up.. And yes i had red to + and black to - and did go ahead and change battery just in case

[ben7]

Re: Voltage level on LCD power supply board.

Ok ... One of my probes wasnt all the way in the meter when I tested the big cap.. It is testing at 440.... I also double checked my other readings and sad to say they are still jacked up.. And yes i had red to + and black to - and did go ahead and change battery just in case

Ah ok, that is good.

You probably could start a list of the caps that need to be replaced on the PSU, I'd say do all them except the very big black one.

[lilmonk3]

Re: Voltage level on LCD power supply board.

Ok I will check and see what I have and what I need to order... Need to get rid of these kids first Grrrr

[lilmonk3]

Re: Voltage level on LCD power supply board.

Here are a few pics

[lilmonk3]

Re: Voltage level on LCD power supply board.

Here are a few pics

Does that blue dipped cap look odd to any of you??

[ben7]

Re: Voltage level on LCD power supply board.

Does that blue dipped cap look odd to any of you??

A little, but they usually rarely fail.

It seems others have fixed this PSU by replacing it, so, go ahead and get a new one, its a 47n 1000v capacitor. If you want, you could use a 1500v cap for some extra headroom (perhaps that is why the 1000v ones got bulged?).

[tom66]

Re: Voltage level on LCD power supply board.

Those caps can and do fail and bulging like that is a common sign something is wrong.

[ben7]

Re: Voltage level on LCD power supply board.

Those caps can and do fail and bulging like that is a common sign something is wrong.

Indeed, I have overvolted one myself, and it bulged. It popped too, looked like a big popped zit :P:

Is that infact 47n 1000v? I cant tell from the pic. But, thats the value others are saying the cap is.

[ben7]

Re: Voltage level on LCD power supply board.

This one looks good, though albeit expensive.

[lilmonk3]

Re: Voltage level on LCD power supply board.

Indeed, I have overvolted one myself, and it bulged. It popped too, looked like a big popped zit :P:

Is that infact 47n 1000v? I cant tell from the pic. But, thats the value others are saying the cap is.

Yes its 47/1000

[lilmonk3]

Re: Voltage level on LCD power supply board.

This one looks good, though albeit expensive.

Here is the one I was looking at the Bill mentioned earlier in the post
http://www.digikey.com/product-detai...799-ND/1648116

[lilmonk3]

Re: Voltage level on LCD power supply board.

I think will will shotgun most the radial caps also...

[lilmonk3]

Re: Voltage level on LCD power supply board.

I need help picking out a 450v 47uf cap .. Digi does not have Panasoinc fm or fc in this cap..

[ben7]

Re: Voltage level on LCD power supply board.

I need help picking out a 450v 47uf cap .. Digi does not have Panasoinc fm or fc in this cap..

Here.

[lilmonk3]

Re: Voltage level on LCD power supply board.

Here.

Oppps I meant 4.7uf

[ben7]

Re: Voltage level on LCD power supply board.

Oppps I meant 4.7uf

lol

4.7uF 450v

[lilmonk3]

Re: Voltage level on LCD power supply board.

lol

4.7uF 450v

Thank You

[lilmonk3]

Re: Voltage level on LCD power supply board.

Just got done shotgunning the board with caps.. And its still jacked up
Boards connected -------- not connected
5v-m=5.0 -------- 6.1
5v-m=5.1 -------- 6.3
sw= 15.4 -------- 100+ and climbing
BR1= 2.7 --------- 100+ and climbing
12v= .09 -------- .02
12v= .09 -------- .08
5v-s= 4.7 ------- 4.8
5v-s= 4.7 ------- 4.8
Stb= 2.09 ------- can hear a click when testing and reads 0..

[lilmonk3]

Re: Voltage level on LCD power supply board.

The Tv is stuck in Standby still,, But When I stick my +probe in Stb it kicks it off.. grrr