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Old 04-23-2012, 02:58 PM   #21
Jasgriff
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Default Re: Dell WFP 2007 No image

Retiredcaps is brilliant on the multimeter front. I am sure he can point you in the right direction.
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Old 04-23-2012, 10:09 PM   #22
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Default Re: Dell WFP 2007 No image

Quote:
Originally Posted by noisepc View Post
I have uploaded more images at the top of this post, from the other side of the cards, please let me know if you need something specific.

Thanks man!
We need a picture of your panel board. Follow this cable in red and take a picture of that board. It might be behind a metal shield. As I mentioned, it will a long board at the top of the lcd running the entire length of the monitor.

On this panel board might be a SMD fuse which might be marked F1. You will need a multimeter to see if it is good or bad. With power off and lcd unplugged, a good fuse should measure less than 1.0 ohms.

If you don't have a multimeter and don't ever plan to repair any more electronics in the future, then borrow one from a friend. If you want to buy one, I don't know your local market, so you probably want to get something off ebay that provides free shipping? This usually implies buying something from Chinese vendor as they seem to ship worldwide. What is your budget in USA dollars?

If you have a local electronics store that sells multimeters and they have a website, post the URL and I can take a look.
Attached Images
File Type: jpg resized_DSC04639.jpg (177.7 KB, 15 views)
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Last edited by retiredcaps; 04-23-2012 at 10:22 PM..
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Old 04-24-2012, 11:50 AM   #23
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Default Re: Dell WFP 2007 No image

Where is the fuse?
Attached Images
File Type: jpg resized_DSC04642.jpg (306.9 KB, 8 views)
File Type: jpg resized_DSC04641.jpg (242.1 KB, 5 views)
File Type: jpg resized_DSC04640.jpg (266.4 KB, 3 views)
File Type: jpg resized_DSC04644.jpg (218.8 KB, 5 views)
File Type: jpg resized_DSC04643.jpg (248.8 KB, 6 views)
File Type: jpg resized_DSC04645.jpg (236.4 KB, 27 views)
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Old 04-24-2012, 12:05 PM   #24
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Default Re: Dell WFP 2007 No image

bottom pic 4645 its the orange component om the bottom right of the multi coloured cable
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Old 04-24-2012, 12:24 PM   #25
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Default Re: Dell WFP 2007 No image

Quote:
Originally Posted by Jasgriff View Post
bottom pic 4645 its the orange component om the bottom right of the multi coloured cable
That is one fuse - Think retiredcaps was meaning one at the other end of the lvds cable ie probably attached to the panel and probably behind a metal frame.


@ noisepc
Unfortunately your pictures are too blurry for us to see the details. Did you look at them on screen to see what they look like?

Having said that in the pic attached I think the white item in the yellow box is a fuse - what I am saying about the quality of the pictures is that if it had been one of the items in the pink box we couldnt see it.

None of these boards are the one retired caps asked for see above.
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File Type: jpg Fuse who can tell.JPG (63.9 KB, 21 views)
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Old 04-24-2012, 12:34 PM   #26
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Default Re: Dell WFP 2007 No image

So you are saying that It should be more boards near the panel? Should I keep dissembling the case?

So far I have 4 boards, but as I'm not an expert, I don't how to named them. Please point me to the right one, and I'll take more pictures in detail.

Thanks!
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Old 04-24-2012, 02:35 PM   #27
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Default Re: Dell WFP 2007 No image

We cant see the board but yes you need to go in further.
Here is an interesting video - set similar to yours - will help with the part names
http://www.youtube.com/watch?v=Oh-7-6Yb0Oc
He doesnt go in far enough but there is a board under the metal plate
in the following picture taken from the video. This is the other end of the cable
shown in the red box in retiredcaps picture.
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File Type: jpg connector2007.JPG (53.3 KB, 11 views)
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Old 04-24-2012, 03:22 PM   #28
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Default Re: Dell WFP 2007 No image

This one?
Regarding the YT video, that guy told me to contact you guys
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File Type: jpg resized_DSC04647.jpg (165.7 KB, 18 views)

Last edited by noisepc; 04-24-2012 at 03:30 PM..
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Old 04-24-2012, 03:36 PM   #29
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Default Re: Dell WFP 2007 No image

Hurrah! that's the one but the picture is no good - did you look at it since you posted it?
I can barely make out the main chip let alone a fuse that will be a few millimeters across.
Take pic in 3 sections overlapping - must be well lit and in focus so it can be enlarged.
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Old 04-24-2012, 04:01 PM   #30
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Default Re: Dell WFP 2007 No image

Hope this works!
Attached Images
File Type: jpg resized_DSC04669.jpg (234.6 KB, 13 views)
File Type: jpg resized_DSC04664.jpg (268.2 KB, 25 views)
File Type: jpg resized_DSC04663.jpg (267.0 KB, 10 views)
File Type: jpg resized_DSC04666.jpg (219.4 KB, 9 views)
File Type: jpg resized_DSC04665.jpg (299.0 KB, 10 views)
File Type: jpg resized_DSC04668.jpg (206.4 KB, 9 views)
File Type: jpg resized_DSC04667.jpg (206.7 KB, 10 views)
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Old 04-24-2012, 10:06 PM   #31
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Default Re: Dell WFP 2007 No image

Fuse F1 is on that tcon (2nd pic). You need a multimeter to see if it is good or bad.
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Old 04-24-2012, 10:47 PM   #32
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Default Re: Dell WFP 2007 No image

This one I marked in yellow?
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File Type: jpg Fuse F1.JPG (259.3 KB, 32 views)
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Old 04-24-2012, 11:51 PM   #33
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Default Re: Dell WFP 2007 No image

Yes.
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Old 04-25-2012, 06:24 AM   #34
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Default Re: Dell WFP 2007 No image

My friend multitester is broken, therefore I'm gonna have to buy one. Any recommendations?

I've found this one? Does it do the job?

http://articulo.mercadolibre.com.ar/...12-digitos-_JM

Last edited by noisepc; 04-25-2012 at 06:28 AM..
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Old 04-25-2012, 07:05 AM   #35
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Default Re: Dell WFP 2007 No image

Thats looks ok I cannot work out how much it is though. Retiredcaps is great at finding good multimeters at good prices.
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Old 04-25-2012, 12:30 PM   #36
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Default Re: Dell WFP 2007 No image

Quote:
Originally Posted by noisepc View Post
I've found this one? Does it do the job?

http://articulo.mercadolibre.com.ar/...12-digitos-_JM
It will work, but if you can pay a little bit more, this one has some decent reviews at

http://articulo.mercadolibre.com.ar/...baw-ut-33d-_JM

See

http://www.eevblog.com/forum/product...wn-and-review/
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Old 04-25-2012, 04:40 PM   #37
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Default Re: Dell WFP 2007 No image

Ok, guys, I bought the multimeter but I was only able to get UT33C not D. Now what should I do? If someone has time to guide thru this via chat would be great! my msn address is [email protected]

Thanks in advance!!!
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Old 04-25-2012, 05:54 PM   #38
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Default Re: Dell WFP 2007 No image

I tested continuity on F1 but there is not continuity. Your thoughts?
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Old 04-25-2012, 09:15 PM   #39
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Default Re: Dell WFP 2007 No image

I was able to collect some data with the multimeter:

LOGIC BOARD

C128= 22,9
C148= 22,8
C155= 22,8
C57 = 22,8
C35 = 22,8
C19 = 22,8
C81 = 22,8
C89 = 22,8
C98 = 22,8
C96 = 22,8
C144= 22,8

C58 = 17,6
C24 = 17,6
C61 = 17,5
C34 = 17,5

C142 = 19,8

C153 = 03,2
C152 = 03,2
C158 = 03,2
C64 = 03,2
C90 = 03,2


MEMORY BOARD

C851 = 37,2
C858 = 36,6
C838 = 31,6
C801 = 37,2
C848 = 37,2

POWER BOARD

C713 = 06,2
C711 = 06,2
C712 = 06,1

C611 = 25,7
C606 = 23


USB BOARD

C35 = 24,8
C43 = 24,6
C59 = 24,1
C49 = 24,2
C33 = 18,9
C50 = 07,8

C60 = 02,2
C44 = 02,9
C4 = 02,2
C8 = 02,2
C5 = 02,2
C9 = 02,2


And also able to test continuity from F1 Fuse. Please see the picture below
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File Type: jpg Fuse F1 Continuity.JPG (256.4 KB, 14 views)
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Old 04-25-2012, 10:12 PM   #40
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Default Re: Dell WFP 2007 No image

1) Never use continuity to test a fuse, always use resistance. A good fuse should measure less than 1.0 ohms. Resistance is always tested with power off and device unplugged from the wall outlet.

2) Put your multimeter on 200 ohms.

3) Put your red probe on one side of F1. Put your black on the other side of F1.

4) If the multimeter is showing "1" on the left hand side on the screen (like it does when the probes aren't touching), that tells you that the fuse is greater than 200 ohms. This means the fuse is blown or bad.

Don't confuse "1" on the left hand side of this display with 1.0 on the right hand side. The first means out of range and the second means 1.0 unit of your measurement.
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