HP 2509M Monitor - no display

[kris760]

Re: HP 2509M Monitor - no display

My screen no longer has power as of today. I took it apart which was a pain. Tested the mosfet. It test bad. FDB6030L Im trying to find this part where did you buy it at? Also whats the part number on the diode you changed.

[northpoint]

Re: HP 2509M Monitor - no display

I was able to repair the power board but buying and trying to install the tubes was a bear. I learned that its best to just send the tubes in and have a place do it for you.

The monitor is not working as I couldnt find the right length tubes to put in it. So, I do have a working screen (minus the tubes), working power board and such.

I think that you can get it working but send in the light tubes plus assemblies and have a company do the repair on them so you can get them back and just install them.

Best of luck,

Northpoint

[Canadianllama]

Re: HP 2509M Monitor - no display

Did you ever get this working? i have one, but don't wont to spend the time and money if it never got working, i see this is a hugely common issue with these monitors.

Thanks

[retiredcaps]

Re: HP 2509M Monitor - no display

ccflwarehouse.com also sells them pre-harnessed in addition to bare lamps. Pre-harnessed is more expensive, but easier to install.

[northpoint]

Re: HP 2509M Monitor - no display

Ordered in two 2.6mm x 565mm tubes and 8 endcaps. In talking to them its more important to get as close to the diameter of the tube then the size. I have also read to try and stay about 5mm within the size of the tube but not going over the original size.

As soon as I can get these (nebraska ---> Indiana) from ccflwharehouse.com I can finish the repair and be done with it.

Thanks again for all the advice from everyone. This certainly made a great beginner project for repairing monitors. Since the monitor is somewhat expensive it was worth the money. I see they sell for about 225.oo or so.

Northpoint

[northpoint]

Re: HP 2509M Monitor - no display

Thank you for the ccfl tube recommendation. Im going to get something ordered up today. Need to get this monitor completed.

I certainly understand ordering 2 tubes. Im sure it was I that broke the tube in this monitor by accident. Really got upset and had to leave the shop for awhile to cool off

Saw one of these 2509m monitors for sale on ebay for parts. They were asking around 65 bucks for it. Because of the size I was thinking this would be a shipping nightmare.?

Thanks again,

Northpoint

[jayoung]

Re: HP 2509M Monitor - no display

I have used the following e-Bay auction and in the payment, put the information that they request and list the actual LENGTH and DIAMETER of the ccfl that you want to replace (3.0mm x 570mm). I usually order 2, just in case I break one (I haven't yet) because the shipping for the second one is free. $13 for 1 ccfl and $21 for 2.

http://www.ebay.com/itm/New-High-Qua...item3a51786c85

[jetadm123]

Re: HP 2509M Monitor - no display

I think that your questions would be better answered by ccflwarehouse. Other members have reported they are very helpful and are better qualified at answering your questions.

[northpoint]

Re: HP 2509M Monitor - no display

Ok, I have decided to replace the broken tube and resurect this poor hp monitor. The tubes are 569.9125mm from glass end to glass end. As best as I can tell the diameter is 3mm. I dont think a direct replacement is available as I dont see anything near 569/570mm in length for a tube.

At ccflwarehouse closest I get and not overshooting is 535mm. This would leave 3/4 inch short on each side.

They show a diameter of 2.6 with a length of 565. Now thats only 4mm short. Is the diameter going to make that much difference in brightness or whatever?

I would hate to think I have to have these custom made. I have never ordered tubes before so I lack the experience in replacing them. Any help is appreciated here.

[selldoor]

Re: HP 2509M Monitor - no display

ccflwarehouse.com also carries a complete line of parts.

They also have "Bargains" if you hit lucky on ebay - this is an example.
Company is Plazmo Industries
http://www.ebay.com/itm/BLOW-OUT-SAL...item3caff167a4

[jetadm123]

Re: HP 2509M Monitor - no display

ccflwarehouse.com also carries a complete line of parts.

[budm]

Re: HP 2509M Monitor - no display

Check out this place: www.lcdparts.net

[northpoint]

Re: HP 2509M Monitor - no display

I have 1 broken ccfl tube that is about 22.5 inches long and as far as I can figure its 3mm diameter. What really gets me is I had a hard time getting the silicon end piece off of them. The tubes are paired (2 tubes at top, 2 tubes at bottom) with dual silicon end covers. I actually had to destroy the silicon end covers to get them off.

I dont think I would have a problem soldering the connectors to the tubes but coming up with end connectors does bother me. Any ideas on this?

If I can find the right size tube I might go for it. I have everything else working on the monitor and have to fix some bad solder points to the tubes so in reality I m going to need 4 end covers. Hummm... Wonder if I can actually make some end covers? Silicon glue???

Northpoint

[northpoint]

Re: HP 2509M Monitor - no display

Hmmm .....

I was thinking that perhaps you may want to see if it's true that poor solder joints on the tubes is causing the dark left thing. If the tubes themselves are still good then some cleanup and re-soldering should do it. If it really is the tube, well, it's still your call .....

I've done quite a number of ccfls replacement and it helps to calm oneself (relax, deep breaths, meditate, whatever) before attempting it.

Just got done tearing the ccfls out of the monitor. It didnt take that long and wasnt really all that difficult. But I can see where the wires burned from the ends.

All in all, This was a good learning experience basically. Thats about it. I will though check and see if I can fix the ends of the tubes.

Therefore, It was the arching of the tubes that made it flicker then. The tubes themselves look to be about 22 inches long. There are 2 tubes to each (top and bottom of monitor). I will see about soldering them.

Thank you for your input!

Northpoint

[UniT3d]

Re: HP 2509M Monitor - no display

Hmmm .....

I was thinking that perhaps you may want to see if it's true that poor solder joints on the tubes is causing the dark left thing. If the tubes themselves are still good then some cleanup and re-soldering should do it. If it really is the tube, well, it's still your call .....

I've done quite a number of ccfls replacement and it helps to calm oneself (relax, deep breaths, meditate, whatever) before attempting it.

[northpoint]

Re: HP 2509M Monitor - no display

What a nice thread to read (sarcastic). Thanks United.

Ive been cautioning my customers about HP laptops for a few years now and they keep buying them. Then they come to me and cry when the boards burn up.

Im not sure I want to replace the tubes in it (4) as that will probably be quite expensive along with the inverter controller chip. Opinions on that possibility?

I hope HP goes under at this point.

I guess I will have to re-think things here a bit before I proceed any further. Have any of you done a replacement on the ccfl tubes? Pretty expensive? This darn thing has 4 in it.

Thanks again all!

Northpoint

[jetadm123]

Re: HP 2509M Monitor - no display

When you soldered the wire to the FDB6030L how did you connect the jumper wire? Did you solder one end to the tab and where did you connect the other end?


Also, those two caps reading 31.5V (seems high), what is the voltage rating stamped on them?

[UniT3d]

Re: HP 2509M Monitor - no display

Hmmm .....

I believe the same symptom is being discussed here:

http://h30434.www3.hp.com/t5/Desktop...s/td-p/1210387

If that's true, you'll have to take a peek at the ccfls now ...

[selldoor]

Re: HP 2509M Monitor - no display

It just seems add that when you move the cables the dark are doesnt move.

Could you make one of Budms test lamps - may be nearer a 25" ccfl than the 15"

Read this thread start at post19

[northpoint]

Re: HP 2509M Monitor - no display

Yes but does it look different when you do the swapping.

Very slight difference. I wouldnt think enough to matter really. It goes into standby mode just because no signal is hooked up from a computer. But if I do hook it up to a computer it will stay on.

Iam going to check some transisters on the board next. Cant get the part numbers off of them without taking them out.

Thanks again

Northpoint