Acer al1916W / DAC-19M005

[bruferrit]

OK have taken apart a Acer LCD that turns on but no picture for over 10 min and then wil come on (getting longer every time). There are some bulged caps and one leaking abit.

I am going to recap it with these caps:

(3) 35v 220uf - EEU-FC1V221L (8mm x 15mm)
(2) 25v 1000uf - EEU-FC1E102 (10mm x 20mm)
(1) 10v 1000uf - EEU-FC1A102 (10mm x 16mm)
(1) 10v 2200uf - EEU-FC1A222 (12.5mm x 20mm)

Can anyone say if this is a good choice in Caps.

Thanks Bruce

[bruferrit]

Re: Acer al1916W / DAC-19M005

Can anyone give me advise on this?

[Oerg866]

Re: Acer al1916W / DAC-19M005

Well, replace them :P

[jsog]

Re: Acer al1916W / DAC-19M005

Panasonic FC are decent low-ESR capacitors. FM and FR are better, with lower ESR, higher ripple, and sometimes rated for longer life. FM is often cheaper than FC.

[alexanna]

Re: Acer al1916W / DAC-19M005

I only see one issue and it probably will be OK, You may have to tilt or lay them on their side.
The EEU-FC1E102 25V 1000 UF caps you chose are 12.5mm x 20mm not 10mm x 20mm
I haven't looked recently but the 10mm x20 mm low ESR are difficult to find.

[bruferrit]

Re: Acer al1916W / DAC-19M005

Thank you I will look into the FM's and see what I can get, if they are better.

[jsog]

Re: Acer al1916W / DAC-19M005

Don't forget the startup cap, probably a 47uf 50V in 5x11mm size. Probably only available in FC.

[bruferrit]

Re: Acer al1916W / DAC-19M005

I listed all the caps on the power supply except for the mondo one.

[jsog]

Re: Acer al1916W / DAC-19M005

There are several revisions of the DAC-19M005. If yours doesn't match either of these, please post a picture:

http://www.fixya.com/support/t5837181-need_schematic
https://www.badcaps.net/forum/showpo...&postcount=235

[bruferrit]

Re: Acer al1916W / DAC-19M005

Picture #2 is it.

[jsog]

Re: Acer al1916W / DAC-19M005

For #2, there are two small caps at lower center that should also be replaced.

[bruferrit]

Re: Acer al1916W / DAC-19M005

OK thanks jsog.

[PCBONEZ]

Re: Acer al1916W / DAC-19M005

[From PM]

OK Here i go
All the caps on the power supply (DAC-19M0005)
are all Capxon
220uf 25V KF (8x11.5) 550 ripple
1000uf 25V KF (13x20) 1650 ripple
2200uf 10V KF (13x20) 1750 ripple
100uf 10V KF (10x16) 1040 ripple

There are (2) small caps
One is 47uf 50V GL
& can't read the other one.

I have no idea what the one you can't read is.

Most KF can be replaced by Panasonic FM or FR but there are some ringers in the mix.
Capxon KF is a rather odd series in that some are higher grade and others just mediocre.
One KF may be equivalent to an HM and another to an HE or less.
That happens because KF doesn't stick to typical can sizes for the uF.

Except for the GL you seem to have the specs looked up already.
You just need read the mystery cap, get the GL specs and go shopping.
.

[bruferrit]

Re: Acer al1916W / DAC-19M005

220uf 25V (8x11.5) EEU-FC1E221 Panasonic 550 ripple
1000uf 25V (12.5x20) EEU-FC1E102 Panasonic 1655 ripple
2200uf 10V (12.5x20) EEU-FC1A222 Panasonic 1655 ripple
1000uf 10V (10x16) EEU-FC1A102 Panasonic 1050 ripple (typo above 1000uf not 100uf)

How does this look for replacements? I did not look up the little 47uf 50v GL, they might be 4.7uf 50v will not know until I remove them.

What do you think PCBONEZ?

[PCBONEZ]

Re: Acer al1916W / DAC-19M005

Looks good so far except maybe the 2200uf 10V.
Would like to see more Ripple there.

For the 50v GL. - I looked in the data sheet...
The 4.7uF/50v is a 5mm cap.
The 47uF/50v is an 8mm cap.
Should be able to eyeball it.
.

[PCBONEZ]

Re: Acer al1916W / DAC-19M005

Look at this KY for the 2200uF.
http://search.digikey.com/scripts/Dk...me=565-1510-ND


KY is a good cap series often used in better PSUs and w/specs bit better than FC.

Does flip-flop a little because of the different can sizes but KY is worth checking when you need something just a little better than FC.
Also Nichicon HE series is nearly identical to Chemicon KY series.
Almost every cap between HE and KY is an exact match.
[Which makes it easier to find one of them. If they are out of KY in some size they might have it in HE.]
.

[bruferrit]

Re: Acer al1916W / DAC-19M005

Should I just go with KY series for all the caps on this one?

[PCBONEZ]

Re: Acer al1916W / DAC-19M005

FC are perfectly fine for the others you mentioned.
-
Don't assume a KY is always better because [within a series] the ESR/Ripple change with can size and the KY might have a smaller can than the FC for that uF/volts - which could give the KY worse specs for that particular uF/volts.
[You have to look at data sheets...]

If either FC or KY works [ESR/Ripple] for whatever size [uF/Volts] I'd probably use whichever is cheaper unless some can size difference made one more attractive than another.
- Like for instance the height is pushing it for the FC and the equivalent KY is shorter. [Or vice-versa.]
.

[bruferrit]

Re: Acer al1916W / DAC-19M005

OK replaced the caps on the power supply. I did not replace the (2) small caps as i could not read them w/o removing them. The power light comes on now and does not blink, I can see the display but no back lights for it to shine. any suggestions on that?

thanks,
Bruce

PS thanks for your help PCBonez

[bruferrit]

Re: Acer al1916W / DAC-19M005

ok is it possible that if the 40T03GP Power mosfet is bad that the little fast blow fuse is ok? I looked at the fuse and it looks fine i checked both mosfets and on one i get a shot from leg 1 to leg 3 but when i reverse the black & red leads i get a reading.