Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

[alexanna]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Measuring the current is easy once the fuse burns out. Hook up the amp meter across the fuse.

Just a sugestion, it would be a good idea to make sure the problem that caused the fuse to blow is fixed.
The ammeters I have used are fused at 10A, which could cause some serious damage.
I really have no idea what the correct fuse rating would be for this one, but I just recently finished a Gateway 24” and the single inverter fuse was rated at 5A

[severach]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Has anyone measured the current flow to determine suitability?

Measuring the current is easy once the fuse burns out. Hook up the amp meter across the fuse.

[kehall]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

I'm about to order parts for the AL2416W, That I bought broken for $10. I have the 100uf 35v caps bulging out the bottom and one F1 fuse bad. I'm changing all the caps, fets, and the one fuse on the inverter board. My main question is that the Fuse is definately mark with a M not a W as Bonney said in the beginning of this thread. It seems somewhere people have been using the 4a W fuse not a 1.25A M.
Does this matter?

Has anyone measured the current flow to determine suitability?

[fa28]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

I'm about to order parts for the AL2416W, That I bought broken for $10. I have the 100uf 35v caps bulging out the bottom and one F1 fuse bad. I'm changing all the caps, fets, and the one fuse on the inverter board. My main question is that the Fuse is definately mark with a M not a W as Bonney said in the beginning of this thread. It seems somewhere people have been using the 4a W fuse not a 1.25A M.
Does this matter?

[tgeml]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Back on topic though, this is the 3rd Acer 2416w i'm repairing, the other two were just cap swaps, but this one, after it first shut down, the user stupidly kept trying to turn it back on until it stayed on (even hitting it int he process), then until you guessed, big pop, and now a less simple repair!

Its likely your looking at replacing some fets now, I'd inspect the inverter for visual damage to the 3 smd fuses and 4 fets.

[kehall]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Back on topic though, this is the 3rd Acer 2416w i'm repairing, the other two were just cap swaps, but this one, after it first shut down, the user stupidly kept trying to turn it back on until it stayed on (even hitting it int he process), then until you guessed, big pop, and now a less simple repair!

[kehall]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Keith, your scaring me! I love my 245bw, so far no problems(I do hear a high pitch whine from it periodically, may crack it open and check for bad caps). My AL2416w is DVI, its definately blurry compared to the sharpness of the samsung, even with DVI.

I got these Fuses, they worked well, even though they are slightly less tall, they fit the pcb perfect. The seller also shipped them in 2 days, was SUPER fast in the united states.

thanks for the link... I didn't find any bad ones in the 245 although there is another thread on here talking about it, burnt sacrificial resistors and things but my flickering must be something else, or they all do it and only I notice it!

[kehall]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Did you change the biggest filter cap (usually lying on the side) too?

yep, all of them.

[kehall]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

My first choicewas Farnell over there in the UK. But the website was down. It's marked "W" correct? That's a 4.0 amp fast acting fuse.

Thanks... I know someone who has a couple of 4A very fast blow in a 1206 package left over from another job but its rated at 63V not 24V, not 100% sure if it would be suitable.

Interestingly it is marked with an 'S' which according to your table is 2A but it is definitely a 4A rated fuse ??? see http://cpc.farnell.com/multicomp/mc1...tt=4a+smd+fuse

Keith

[severach]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Does your acer have the DVI connector? mine only has the VGA and the display is a bit too fuzzy for me to use - any ideas if there are any driver boards with DVI going cheap?

The early revision monitors with Samsung PVA LTM240M1-L01 on VGA look a lot better than the later revision AU Optronic TN Film panels M240UW01 M240UW04. I suspect you won't be happy with the AUO displays even with the slight improvement from switching to DVI.

[tgeml]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

I ordered exactly the same from same seller on 26th March! Just waiting for them to arrive now, by your experience I'm probably looking around next Thursday to arrive.

Where did you source the fuses, may I ask? I have one blown due to the shorted mosfets that I need to replace.

Interesting you also have a Samsung 245bw - I'm suffering from a case of flickering backlight (all caps swapped on psu, even on inverter board, none of them tested faulty anyway for what its worth), and still have the flicker which is best described as around 60Hz - you have to stare at one point to kinda really see it), but it's there and I'm sure it is inducing eye strain/headaches.

Does your acer have the DVI connector? mine only has the VGA and the display is a bit too fuzzy for me to use - any ideas if there are any driver boards with DVI going cheap?

Regards,

Keith.

Keith, your scaring me! I love my 245bw, so far no problems(I do hear a high pitch whine from it periodically, may crack it open and check for bad caps). My AL2416w is DVI, its definately blurry compared to the sharpness of the samsung, even with DVI.

I got these Fuses, they worked well, even though they are slightly less tall, they fit the pcb perfect. The seller also shipped them in 2 days, was SUPER fast in the united states.

http://cgi.ebay.com/ws/eBayISAPI.dll...STRK:MEBDIX:IT

[retiredcaps]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

all caps swapped on psu,

Did you change the biggest filter cap (usually lying on the side) too?

[Lumberjack777]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Where did you source the fuses, may I ask? I have one blown due to the shorted mosfets that I need to replace.

My first choicewas Farnell over there in the UK. But the website was down. It's marked "W" correct? That's a 4.0 amp fast acting fuse.
You can get 1 or more here in the UK. http://uk.rs-online.com/web/search/s...duct&R=6925031

For those interested I finally found datasheet with the letter code markings.
RATING CURRENT (A)
F = 0.50
K = 0.80
L = 1.00
M = 1.25
P = 1.50
S = 2.00
T = 2.50
3 = 3.00
W = 4.00
Y = 5.00
Z = 7.00

[kehall]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Thought I would give an update, on March 16th I ordered 2x P5504EDG and 2x P2804BDG from a seller on ebay (Sisitronics).
They arrived today, I replaced the 2 fets on the puffed cap side first, leaving the original ones on the upper portion of the board,
and IT WORKS!! here's a pic, I'm hanging onto the other 2 replacements I ordered just incase.

I ordered exactly the same from same seller on 26th March! Just waiting for them to arrive now, by your experience I'm probably looking around next Thursday to arrive.

Where did you source the fuses, may I ask? I have one blown due to the shorted mosfets that I need to replace.

Interesting you also have a Samsung 245bw - I'm suffering from a case of flickering backlight (all caps swapped on psu, even on inverter board, none of them tested faulty anyway for what its worth), and still have the flicker which is best described as around 60Hz - you have to stare at one point to kinda really see it), but it's there and I'm sure it is inducing eye strain/headaches.

Does your acer have the DVI connector? mine only has the VGA and the display is a bit too fuzzy for me to use - any ideas if there are any driver boards with DVI going cheap?

Regards,

Keith.

[jetadm123]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Thought I would give an update, on March 16th I ordered 2x P5504EDG and 2x P2804BDG from a seller on ebay (Sisitronics).
They arrived today, I replaced the 2 fets on the puffed cap side first, leaving the original ones on the upper portion of the board,
and IT WORKS!! here's a pic, I'm hanging onto the other 2 replacements I ordered just incase.
(Repaired AL24216 on the left, Samsung 245bw on the right)

Good job! Seems like the caps and mosfets are a common problem on those TDK inverters.

[tgeml]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

I'm OCD about my desk, CLEAN is goooooooood Thanks to this post for all the help, would have been lost without you guys.

[PlainBill]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Thought I would give an update, on March 16th I ordered 2x P5504EDG and 2x P2804BDG from a seller on ebay (Sisitronics).
They arrived today, I replaced the 2 fets on the puffed cap side first, leaving the original ones on the upper portion of the board,
and IT WORKS!! here's a pic, I'm hanging onto the other 2 replacements I ordered just incase.

My worklog.

1)Replaced 10x stock caps with 10x Low-ESR Caps.
2)Replaced All 3 fuses.
3)Replaced the 2 fets on the bottom half of the pcb(area with commonly burst caps)
4)Functionality!

(Repaired AL24216 on the left, Samsung 245bw on the right)

That's disgraceful!!! A clean desk???

Congratulations on your success.

PlainBill

[tgeml]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Thought I would give an update, on March 16th I ordered 2x P5504EDG and 2x P2804BDG from a seller on ebay (Sisitronics).
They arrived today, I replaced the 2 fets on the puffed cap side first, leaving the original ones on the upper portion of the board,
and IT WORKS!! here's a pic, I'm hanging onto the other 2 replacements I ordered just incase.

My worklog.

1)Replaced 10x stock caps with 10x Low-ESR Caps.
2)Replaced All 3 fuses.
3)Replaced the 2 fets on the bottom half of the pcb(area with commonly burst caps)
4)Functionality!




(Repaired AL24216 on the left, Samsung 245bw on the right)

[Curt Palme]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

Oh, and the caps are not bulged in any way.

The problem was the cap value. Completely out of circuit, they still read perfect ESR, but two of the caps were at 61 uF and 12uF. Go figure.

[Curt Palme]

Re: Acer AL2416 AL2416W 24" 1920x1280 LCD Monitor

I wanted to add something here that I haven't read in this thread. I too have a couple of Acer 2416 that come on for the ACER logo, then the backlight went dead.

I checked all the caps with an ESR tester, with one leg lifted off the PC board. (I'm a board level tech, and know my way around these units.)

What I found with some experimentation is that the backlight would only come on for under a second with all 6 connected, but would stay on for about 2 seconds if I disconnected any 2 out of the 6. This indicated that the backlight shut down under full load, but since I could disconnect any of the 2 backlights, I figured that the transformers and CCFLs were OK.

I read this whole thread (well, to page 6), and kept coming back to the caps even though they checked OK. So... not expecting anything, I changed 4 of the caps. Presto, bingo, the unit works. (Yes, I'm changing the other 6 caps).

So... first order of business is CHANGE THOSE CAPS, even if they check OK. I"m about to throw them on my Sencore cap tester to see what the exact nature of the failure is of these caps.

Thought this might help others.