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Old 01-22-2012, 12:26 PM   #161
jschiefer
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Default Re: Dell E153FPB Back Light problem

Is that (4th) pin, the yellow one, supposed to be 0v?
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Old 01-22-2012, 12:38 PM   #162
paslug
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Default Re: Dell E153FPB Back Light problem

Jschiefer, Did you try a different vga cable?

EDIT: Sorry, I just reread your post where you said you tried a different cable and source. My Bad

Ray

Last edited by paslug; 01-22-2012 at 12:46 PM..
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Old 01-22-2012, 12:39 PM   #163
retiredcaps
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Default Re: Dell E153FPB Back Light problem

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Originally Posted by jschiefer View Post
Is that (4th) pin, the yellow one, supposed to be 0v?
I don't know. The legend is obscured in the picture.
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Old 01-22-2012, 01:22 PM   #164
jschiefer
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Default Re: Dell E153FPB Back Light problem

I'll try another cable. I'll grab a new one from work. Maybe I have two bad ones and my other source isn't as sensative. I'll take a better picture of the molecular connector later.
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Old 01-22-2012, 01:44 PM   #165
retiredcaps
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Default Re: Dell E153FPB Back Light problem

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Originally Posted by jschiefer View Post
I'll try another cable.
That reminds me of another thread. Try to get a quality thick shielded cable. One person has those cheap thin cables and when he replaced it, the problem went away. Unfortunately, I don't remember which thread it was or what the original symptoms were.
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Old 01-24-2012, 07:17 AM   #166
jschiefer
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Default Re: Dell E153FPB Back Light problem

Well I hate to admit this but I guess it will be good for the forum. The problem was the cable. I tried a brand new one and it works fine now. I tried the old one on another set up and it is fine too. I guess this monitor is just a little more sensitive than others. (and I have two "bad" cables).

Thanks for all your help.

Last edited by jschiefer; 01-24-2012 at 07:18 AM.. Reason: Bad cables
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Old 01-24-2012, 01:25 PM   #167
retiredcaps
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Default Re: Dell E153FPB Back Light problem

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Originally Posted by jschiefer View Post
The problem was the cable.
Glad it was an easy fix.
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Old 06-07-2012, 01:18 AM   #168
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Default Re: Dell E153FPB Back Light problem

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Originally Posted by brianh View Post
Ahhh - finally I've found the problem!!!!

After a lot of trial and error I have the CCFL lamps back on!

I won't keep you in suspense any longer... The problem was a blown fuse!

No... not the big white one, it was a little black one labeled PF751 (see previously posted photo if you're interested - it's on the right side and looks more like a rectifier diode).

I can read the letters "MS 2A" on it - so I guess that means that it's a 2 amp fuse. Someone else posted a schematic for a similar Diamond View monitor, which shows a 3 amp fuse. (ref: Inverter Schematic )

I've jumpered the fuse with an extremely fine strand of wire, and the CCFL now comes on. I'm giving it a burn-in-test right now. So far 1/2 hour and all is well.

I am, however, not willing to call it "fixed" yet - after all... Why did the fuse blow in the first place?

Sure... I plan on putting in a proper fuse, but I don't want to re-assemble it and have it blow another fuse (or worse) in a day or two.

But hey... after way too many hours on this project - at least I've got something positive!

Any thoughts?
Thanks man , you save me
i was thinking about buy another monitor
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Old 09-24-2012, 02:33 AM   #169
larry256
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Default Re: Dell E153FPB Back Light problem

can i replace fu9024n with c5707's
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Old 09-24-2012, 06:36 AM   #170
Rtech
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Default Re: Dell E153FPB Back Light problem

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Originally Posted by larry256 View Post
can i replace fu9024n with c5707's
NO, the FU is a P channel mosfet,you could use 2SJ598,FQU11P06,BUT NOT the 5707's
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Old 12-01-2012, 05:18 AM   #171
alihomee
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Default Re: Dell E153FPB Back Light problem

thanks for this post i tried it and it works
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Old 04-07-2013, 06:01 PM   #172
bcstedt
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Thumbs up Re: Dell E153FPB Back Light problem

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Originally Posted by bcstedt View Post
Repair kit arrived yesterday and after re-soldering all four Xformers (bent the leads out for better electrical / mechanical connection) and replacing two c5707 Xsistors it is back up and running. Will burn it in for a day, but so far so good.
Just wanted to say that everything is still working fine since the fix. Thanks again for the support!
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Old 08-05-2013, 02:38 PM   #173
halobender
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Default Re: Dell E153FPB Back Light problem

Anyone having issues with this model should try adjusting the pot on the back of the panel. All fuses, caps, xr's all tested good for me so I tried adjusting the pot and sure enough I went from a screen that would turn on for a moment then go black to a monitor with a screen that stays on. Remember small turns on the pot and I recommend doing it while powered up so you can see changes live.
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