Re: Dell E153FPB Back Light problem - and another
top fix chap, a bit of 2 amp fuse wire done the trick. all hale brian h
top fix chap, a bit of 2 amp fuse wire done the trick. all hale brian h
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Re: Dell E153FPB Back Light problem
Hello, my dell flat screen too has this problem. I have read the entire post, but it seems there ins't any particular solution. Can anybody point out which transistor is causing this
thanksComment
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Re: Dell E153FPB Back Light problem
1. The problem is not caused by a transistor. The problem is caused by bad solder joints on the transformers.
2. There are two identical circuits for each inverter. Either (or both) transformer can have bad solder joints. Usually only one pair of transistors fail.
3. You need an ohmmeter to determine which transistors are shorted.
4. If you replace the transistors without resoldering the transformers the new transistors will also fail.
5. Several different boards were used in each model of the monitor. Without determining which version you have, it is impossible to give you a location number.
6. There are pictures of some of the different versions of the board in this thread. Since you were unable to identify which one you have, a picture of YOUR monitor will be necessary. See my signature for information on taking and attaching one.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Dell E153FPB Back Light problem
my monitor model is E153FPb. one unique thing about mine is that you have to whop the monitor on the back, then it will come on and work just fine. then after powering off for long hours, the cycle restarts againLast edited by coolcurrent; 11-10-2010, 06:55 AM.Comment
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Re: Dell E153FPB Back Light problem
BFD!!! I had assumed you were smart enough to post in a thread that was related to your monitor. That STILL doesn't tell me what power supply / inverter board Dell happened to use in it!!! It is easy to identify the likely defective parts by looking at the board, I know of no way to do so without opening up the monitor.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....Comment
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Re: Dell E153FPB Back Light problem
Good grief, couldn't you make it smaller? Fortunately I was able to match it to a real picture.
Large blue circles - transformers with bad solder joints. Remove as much solder as possible from the pins and resolder
Red circles - bipolar transistors (2SC5706 or 5707). Test and replace both if either transistor in a pair is shorted.
Small blue circles - FET transistors, one for each pair of bipolar transistors. Sometimes fail when the bipolar transistors fail. Test and replace if shorted.
Yellow circle. Picofuse. Test and replace if open.
PlainBillAttached FilesFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Dell E153FPB Back Light problem
The2 gray capacitors in the area of PlainBills Red circles are known for poor solder joints also. If you gently wiggle them sometimes you will see the solder move.
Al.Whatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!
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Re: Dell E153FPB Back Light problem
thanks for the fast response, i'll do my homework and give feed back tomorrow.
without a sucker, which method is best for removing components with a soldering iron, i presently use brush with trimmed tips, but the brush seems to go bad quickly after few usesComment
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For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Dell E153FPB Back Light problem
Hi Folks I'm New here I need help regarding may Dell E153FB.. I've been working on my monitor for almost 3 days.. I tried all i have read from this forum like changing the 4 transistors, resoldering the transformers and other components, and changing the fuse.. It's just that it still keep on turning on and off.. Any possible solution you can give guys? thanks in advanceComment
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Re: Dell E153FPB Back Light problem
Have you checked the "bulbs"?
If its turning on and then abruptly turning off then you might want to check the bulbs.Comment
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There are 10 kind of people in this world: those that understand binary, and those who don't.- ASUS ROG Maximus IX Code
- Intel Core i5-7600K 3.8GHz
- 16gb GSKILL TridentZ RGB DDR4-3200
- 1 M2 SSD + 2 WD Blue 1TB (Mirrored)
- Windows 10 Pro x64
- GeForce GT1050
2 x Acer KA240H + 1 Vewsonic VP2130 21 (a cap replacement job
)
Comment
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Re: Dell E153FPB Back Light problem
hi tnx for the reply.. can you tell what is the proper way of checking the bulbs? another problem i encountered is that I cannot push the button while the lcd is on this mode.. It only took seconds to turn on and off.. then long minutes on then off again
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Re: Dell E153FPB Back Light problem
Hi all,
I just wanted to share my experience:
My father-in-law had a Dell 153FPB that 'died', i.e. had no backlight.
I saw it flash a bit when I plugged it in so I decided to google a bit to see if these things had a common point of failure (usually bad caps in my experience).
Fortunately, I read this forum and that pointed my attention to the PF751 fuse, not very obvious for an amateur like me I must confess.
I measured great resistance over the PF751 fuse, an indication of a blown fuse, so I replaced it with a 2A slowblow fuse and lo and behold!
We have a backlit image again! I hope the new fuse holds.
Thanks for the groundbreaking work,
Eric Benedikz
ps.saw this picture of the culprit:
http://s807.photobucket.com/albums/y...g=Dell+E153FPBComment
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For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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There are 10 kind of people in this world: those that understand binary, and those who don't.- ASUS ROG Maximus IX Code
- Intel Core i5-7600K 3.8GHz
- 16gb GSKILL TridentZ RGB DDR4-3200
- 1 M2 SSD + 2 WD Blue 1TB (Mirrored)
- Windows 10 Pro x64
- GeForce GT1050
2 x Acer KA240H + 1 Vewsonic VP2130 21 (a cap replacement job)
Comment
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This happened last Saturday and today I finally had time this morning before I went to work to replace two non brand capacitors
I will let you be the judge weather or not these are bad or not according to the blue ESR meter that I am using
I am comparing them to a brand new one that I installed
The display came back on and the programming was not lost which I was surprised by I would have thought that when the display went blank that so did the memory as well
I going to let it run for several days before I remount back on the wall next to the... -
Hello friends,
A yellow light was flashing on my monitor. It was like it was constantly cutting power. When I opened it up, I saw that the big capacitor in the high voltage line was leaking. I replaced it. When I turned it on for the first time, it had the same problem again. But then, interestingly, it got better. The yellow light was on steady. But the monitor wouldn't turn on. When I examined them with a thermal camera, I saw that the Fli5961-LF reached 50 degrees Celsius and the EM636165TS next to it reached 100 degrees Celsius and was drawing high current on the motherboard....11-13-2024, 07:00 AM -
hi to all
tv turn on and show logo(backlight on)than backlight turn off than red led in front blinking 7 time. the tv remote control working fine (sound on no picture).backlight changed same problem
in 65k560 how to remove protection of backlight? picture of inverter and sockets attached .
please advise me tnx05-20-2025, 07:11 AM -
Hello, I have a Dell 15R-5521, with the problem that the Ctrl, Alt, Shitf and Num Lock keys do not work, I tested the keyboard with a keyboard tester and it is functional, I also got another new keyboard and the computer has the same problem with the same keys. Check continuity between the ZIF connector from the keyboard to the KBC and all pins are correct. I cleaned the ZIF connector and the KBC and I still have the same problem. I reinstalled windows just in case, and it didn't work. I updated the BIOS to the latest version A16 and there were no changes.
As additional information,... -
Hello everyone,
so, I have this laptop Dell Inspiron N5110 with a heating problem on both CPU (I7-2680qm) and GPU (GT 525m), I tried many solutions, like changing thermal paste every month, using thermal pads on CPU and GPU, even using thermal pads on CPU nearby coils; but nothing worked, just minutes after booting the laptop shuts itself down so I thought it might be a short problem, so I decided to check what's going on, so I went online and some tutorial (general one) said to check inductors in order to find the shorted circuit, after checking (CPU removed), I found the culprit to be...
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