2 second to black on xerox XM3-22wB I need help please

[retiredcaps]

Re: 2 second to black on xerox XM3-22wB I need help please

As I said to Rtech,I have a new monitor here,the same size 22". I also have a few lcd screens, all working. Would a 17" ilyana be okay to check it on?

I prefer to use a CCFL tube of similar length. I haven't tested anything that is different length and unsure if it will work due to voltage and current draw.

[Rtech]

Re: 2 second to black on xerox XM3-22wB I need help please

You can get away with shorter ones usually,but may not work for longer ones,and may confuse the issue if they do not work.

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

Here are instructions written from a different point of view.

Take a known good working LCD. Assume it has 4 CCFL connections. Number them 1, 2, 3, 4.

Take cover off known good working LCD and lay it face down on soft surface. You should be able to access the CCFL connectors.

Remove CCFL connector #1 from the good LCD monitor.
Plug in cable for potentially bad CCFL #1 into connector #1 for test.
Plug LCD into power bar and turn on power bar. Now power on LCD. See if 2 seconds to black occurs.
Turn off power bar, unplug LCD power cord. Wait 1 minute.

Repeat same instructions as above for each potentially bad CCFL.

If these instructions don't make sense, don't try it.

Hello

I have taken your advice and followed your instructions. I have uploaded a picture of the results of the 4 CCFL's. They all stay on for over 5 mins and so I ended the test.One of the ccfl was 15% pink at the end but still worked for the 5 min's as the other 85% was bright white as the other 3 (4 x 2mm x 475mm) So it may not be this that's causing my 2 second problem?

I have had the chance to re-photograph (in focus) the power board and also uploaded those images.The transistors/mosfets? have the no.K3615-6c on both printed on the part's,I have not re-worked these parts yet? They look good but my eye's are not great even using a mag lense light.

Thank you hoppalong Art

[retiredcaps]

Re: 2 second to black on xerox XM3-22wB I need help please

One of the ccfl was 15% pink at the end but still worked for the 5 min's as the other 85% was bright white as the other 3 (4 x 2mm x 475mm) So it may not be this that's causing my 2 second problem?

Each LCD has its own type of controller IC that monitors voltage/current to protect the backlights. The threshold between backlight on/off will be different. So it is possible that this one pinkish CCFL is enough to cause the Xerox to shutdown, but not the ilyana due to the threshold tolerances.

Let's try this test to confirm.

You don't have to remove the Ilyana CCFL tubes from its housing, but try to CAREFULLY connect all 4 Xerox CCFL connectors to the Ilyana CCFL tubes. I realize the cables are short so you might have to "rig" up something to hold/prop the monitors together.

With this test, you will just get a white screen on the Ilyana monitor. If the Ilyana monitor stays on for 1 minute, we know it is the Xerox CCFL tubes at fault.
If we get 2 seconds to black, we know it is something on the Xerox inverter board.

If you put both these monitors onto a power bar, you can switch off the power bar if things go bad.

PS. That pinkish hue does mean that CCFL will die soon. So if this Xerox problem is solved, you may want to replace that one.

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

Hello

Just a few more images for you to see a bit better and this is the equipment I am working with

Thank you

Art

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

Each LCD has its own type of controller IC that monitors voltage/current to protect the backlights. The threshold between backlight on/off will be different. So it is possible that this one pinkish CCFL is enough to cause the Xerox to shutdown, but not the ilyana due to the threshold tolerances.

Let's try this test to confirm.

You don't have to remove the Ilyana CCFL tubes from its housing, but try to CAREFULLY connect all 4 Xerox CCFL connectors to the Ilyana CCFL tubes. I realize the cables are short so you might have to "rig" up something to hold/prop the monitors together.

With this test, you will just get a white screen on the Ilyana monitor. If the Ilyana monitor stays on for 1 minute, we know it is the Xerox CCFL tubes at fault.
If we get 2 seconds to black, we know it is something on the Xerox inverter board.

If you put both these monitors onto a power bar, you can switch off the power bar if things go bad.

PS. That pinkish hue does mean that CCFL will die soon. So if this Xerox problem is solved, you may want to replace that one.

Hello

I will get set up with that,and let you know how I fair

This is an image of the pink tube

Thank you

Art

[retiredcaps]

Re: 2 second to black on xerox XM3-22wB I need help please

Hello

I will get set up with that,and let you know how I fair

Oh yeah, don't let the monitors touch each other in case you short something out. One poster figured out that it was the CCFL tubes causing 2 seconds to black and then he accidentally shorted out the board.

I suggest putting something non conductive in between depending on how you got it rigged. See this fellow Canadian setup

https://www.badcaps.net/forum/showth...t=10861&page=2

He is also try to figure out 2 seconds to black. You can follow along even though you don't have the same monitor.

PS. The photos are a huge improvement in focus.

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

You can get away with shorter ones usually,but may not work for longer ones,and may confuse the issue if they do not work.

Hello Rtech

Well they all worked using retiredcaps set-up advice! I am now going to try the next method.. ie plug them all in on the Illyama ..it only cost me a fiver and it's years old.. So in for a penny

Plus, It's the better half's and might stop her yakking Ha!

well here goes talk latter

Thank you

Art

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

Oh yeah, don't let the monitors touch each other in case you short something out. One poster figured out that it was the CCFL tubes causing 2 seconds to black and then he accidentally shorted out the board.

I suggest putting something non conductive in between depending on how you got it rigged. See this fellow Canadian setup

https://www.badcaps.net/forum/showth...t=10861&page=2

He is also try to figure out 2 seconds to black. You can follow along even though you don't have the same monitor.

PS. The photos are a huge improvement in focus.

Hello

Yes this is the first day we have had a bit of sunshine, so I could get a decent image outside..ha! its August in glorious England,So what's new?

We have had all good weather up till now,So that's where the expression come from I suppose " It never rains until it pours"

A question? What would possibly happen If I reassemble all the bits (there everywhere at the moment) Just with 2 tubes or 3 tubes Just a thought...

A voltage overload maybe or what?

Art

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

Oh yeah, don't let the monitors touch each other in case you short something out. One poster figured out that it was the CCFL tubes causing 2 seconds to black and then he accidentally shorted out the board.

I suggest putting something non conductive in between depending on how you got it rigged. See this fellow Canadian setup

https://www.badcaps.net/forum/showth...t=10861&page=2

He is also try to figure out 2 seconds to black. You can follow along even though you don't have the same monitor.

PS. The photos are a huge improvement in focus.

Hello

I have the ccfl's already detatched from the xerox as separate units? So no problem by putting the two screens together

I hope that makes sense

I will just unplug the Illyama leads and plug in the xerox ccfl's with a quick safety switch on/off and see what happens?

Art

[retiredcaps]

Re: 2 second to black on xerox XM3-22wB I need help please

A question? What would possibly happen If I reassemble all the bits (there everywhere at the moment) Just with 2 tubes or 3 tubes Just a thought...

A voltage overload maybe or what?

Depending on the controller IC, it will probably shutdown due to an underload or overload condition. I think there was a thread to try and "trick" the controller IC into thinking there was a "phantom" CCFL tube, but I don't remember the outcome.

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

Depending on the controller IC, it will probably shutdown due to an underload or overload condition. I think there was a thread to try and "trick" the controller IC into thinking there was a "phantom" CCFL tube, but I don't remember the outcome.

Hello retiredcaps

I understand what I have to do regarding the next test

Hook up the ccfl's from the Ilyama to the xerox power board (so I am trying to put back together the xerox,,) I will have to rig extensions cables not a problem

I just have a bit off a problem at the moment though?. when I took the screen out of the xerox I thought I had images recorded to know how it all goes back together ...did I heck! They are missing. I have the glass, the lcd plastic with a rough surface (one side is shiny and the other has the feel of nodules I suppose they are the electrodes which goes where I don't know and a various amount of plastic sheets all supposed to be in the sandwich,, Huh! I cant find out anything on the net yet. on which order it goes in...worst case take the ilyama apart and see the order of things...I hope you are having a nice week end

Art

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

Hello all watching this thread, with thanks to retiredcaps

I am drawing a line under it as I have broke two lamps trying to put back the screen and also my llyama will not show images now? but the lights are on, So I have a nice winter job to solve..I am going to order more ccfl's for the xerox and see how it goes



Thanks for all your help

Art

[retiredcaps]

Re: 2 second to black on xerox XM3-22wB I need help please

I am drawing a line under it as I have broke two lamps trying to put back the screen

I haven't replaced any lamps myself, but I thought about doing it for a laptop for one of my friends. After I saw how small they were, I decided not to take a chance. The LCDs are larger and more forgiving, but still very fragile.

and also my llyama will not show images now? but the lights are on

If you are getting an all white screen, I suggest rechecking the cable connections. It is easy to miss one or not have it fully plugged in.

If that doesn't work, post back and we will try to get the Ilyama working again.

[Rtech]

Re: 2 second to black on xerox XM3-22wB I need help please

Bad luck,but I said its not easy,Still I'm sure from your posts that you have quite enjoyed this little trip into the world of PC Monitors,and wish you well with this one >>>>AND>>>>>any others you may have a go at.

[alexanna]

Re: 2 second to black on xerox XM3-22wB I need help please

Hello all watching this thread, with thanks to retiredcaps

I am drawing a line under it as I have broke two lamps trying to put back the screen and also my llyama will not show images now? but the lights are on, So I have a nice winter job to solve..I am going to order more ccfl's for the xerox and see how it goes



Thanks for all your help

Art

I don't know what price you could replace your monitor.And how much you are willing to spend on it but there is a company here in the usa that sells complete ccfl assemblies. It's name is ccflwarehouse.I have purchased single bulbs from them,but never complete assemblies.There tech support is very good and I have very good luck with them.
Al.

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

I haven't replaced any lamps myself, but I thought about doing it for a laptop for one of my friends. After I saw how small they were, I decided not to take a chance. The LCDs are larger and more forgiving, but still very fragile.




If you are getting an all white screen, I suggest rechecking the cable connections. It is easy to miss one or not have it fully plugged in.


If that doesn't work, post back and we will try to get the Ilyama working again.

Hello,It was my own fault,,I found it was quite easy to remove the casings holding the ccfl's... there are two 1 top 1 bottom as you might see in previous images I think the lamps were brittle and I never seated them properly in the groove where they reside? It was the gap between the 'u' section that seemed to tight and in frustration I thumped it with my palm!!! bad move..so its my fault..I will try again when I have the lamps...


I thought as much, but I lost the plot, when I broke the xerox lamps so I will get back to it when my minds clear...Thanks retiredcaps

Bad luck,but I said its not easy,Still I'm sure from your posts that you have quite enjoyed this little trip into the world of PC Monitors,and wish you well with this one >>>>AND>>>>>any others you may have a go at.

Your right I have enjoyed it, and will continue to enjoy it...and I am sure I will get it all going with the great help I have got here...Cheer's

I don't know what price you could replace your monitor.And how much you are willing to spend on it but there is a company here in the usa that sells complete ccfl assemblies. It's name is ccflwarehouse.I have purchased single bulbs from them,but never complete assemblies.There tech support is very good and I have very good luck with them.
Al.

Hello alexanna thanks for the link I will have a look,I doubt very much if I can go with the expense? I will look into it though

I have purchased a LG 22" to see me though for now @£89.00

thanks again all I shall return

Art

[hoppalong]

Re: 2 second to black on xerox XM3-22wB I need help please

If you are getting an all white screen, I suggest rechecking the cable connections. It is easy to miss one or not have it fully plugged in.

If that doesn't work, post back and we will try to get the Ilyama working again.[/QUOTE]


Hello again

Just an update I have not had the chance to do anymore to the xerox and have found the problem on the Ilyama, one of the connection tapes (They are a laminated celloloid type material with wires embedded) that I would normally remove by pulling the white tag,has been servered, Oh dear!!! what a plonker I am, I hear you say...I cant see any way of joining this back up again? unless there is a magical remedy, I am flumuxed...

I hope your all well

Art

[retiredcaps]

Re: 2 second to black on xerox XM3-22wB I need help please

have found the problem on the Ilyama, one of the connection tapes (They are a laminated celloloid type material with wires embedded) that I would normally remove by pulling the white tag,has been servered,

Posts 32 to 35 show people resoldering the wire inside

https://www.badcaps.net/forum/showth...oken+connector

post #38 and 39

https://www.badcaps.net/forum/showth...ht=tape&page=2

[Rtech]

Re: 2 second to black on xerox XM3-22wB I need help please

Art,
I have various spares of this sort of cable !!!!Stick a good photo, and show connectors on each end,and how many embedded wires,and will have a look for you.