Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Aye yes. I've read that page, thanks for the link.
Im a very patient person, so I will definitely be cautious.
I tore down the CCFLs wire harness the other day -- took me about an hour due to the heat shrinked rubber around the wires going into the end cap. Had to carefully slice it off so I could pull enough slack in the wires to free the assembly from the channel.
Spz0
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Last Activity: 01-30-2012, 04:52 PM
Joined: 01-24-2012
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Excellent -- I _thought_ there would be some type of sensor to detect faults in the CCFLs.
@Jayoung - I just purchased 2 of the 2.2mm 475mm Full Spectrum CCFL bulbs from the ebay store you listed. Thanks for that. $21 isnt a bad price at all!!
I'll let you all know when they come in.
Thanks again!! Everyone has been extremely knowledgeable and helpful in helping me diagnose my issue.
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Thanks for the links. Im gonna check them out today and get something on order.
Im wondering - since I now have it disassembled, if I should replace both top CCFLs, since they are on the same circuit, or just the one -- or all of them for that matter?
[i](*edit: I will be buying 2 now, as the dis-assembly process cracked the 2nd tube =\ )[/i]
Any suggestions?
afternote regarding CCFL tests:
When I tested #'s 2, 3 and 4 They all lit up individually and produced "2sec...Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Great thanks!
Took a quick look at it, seems they dont have pre-harnessed CCFLs for 22" monitors, so I'll be soldering it myself.
With the bare CCFLs, the charge is for one single tube, not the 2 correct?Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
So, my next logical question is: Where would you go for a replacement? Im reading that they can be sold pre-harnessed or bare. I dont mind a little soldering, but if its not too much more cash to get a pre harness one then I would go that route.
Insight?
Thanks again for all the input!!!Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Heres the Left and right side of the CCFL
Left side pic is a bit fuzzy, but from the right side pic, you get it.
Yes Its been heavily used for 3 years. Standby mode ftw! It _is_ Emachines, so I can see something failing.
An afternote: I have an old 17" Syncmaster from 2002 that is still running strong -- not even 1 dead pixel. /knocks on wood...Last edited by Spz0; 01-25-2012, 06:27 PM.Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Too late Mockingbird. lol
I tore down the monitor, and indeed CCFL#1 is blown out.
Pictures to follow.Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Not a thing. Perhaps this CCFL is bad?
I"ll be tearing it down further this afternoon to investigate....Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Well, I havent had time to go grab a multimeter yet, but I did test the CCFL wiring as posted in Retiredcaps post.
I have 4 CCFLs, and #1 will not light up when it is connected only to the power supply board. All other 3 wires will produce "2 sec to black" conditions (the lights are faint), but the first one will not produce even a flicker on the screen. I have tested in extreme low light conditions just to be sure.Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Yes there _is_ just that one fuse. Thanks for the info on that.
I have visually checked over the CCFL's and they look prestine. I read over on how to test the wiring, but I dont have a spare CCFL wire to test with. I _do_ have an extra 15" monitor lying around - could I disassemble that and see if the CCFL is compatible to test?
lol I"ll keep the measurements to MM in the future. I am also Canadian, but live in Oregon with my Wife.
...Last edited by Spz0; 01-25-2012, 08:23 AM.Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Looking over that thread Retiredcaps posted -- I _do_ have a fuse on this board.
Im just going to have to test the fuse, caps and transistors with a multimeter before I go any further.
Unfortunately I do not know anyone with one, and I've been meaning to buy one for the past 2 years, so looks like tomorrows the day.
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Sure thing. I'll get the height measurements tomorrow (getting late here and having trouble finding my ruler. lol).
Heres a better pic of the board, all painted up.
Theres 2 more in the upper left corner I added as well, although they are not suspect. I can't see the numbers on the large cap -- could barely read the uF on it - because its pasted to the board....Last edited by Spz0; 01-25-2012, 01:05 AM.Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
I'll edit my initial post.
edit::: [I]Dont have ability to edit initial post -- sry for the inline..[/I]
Looks like I'll be getting a multimeter.
I'll post back with any findings. Thanks for the post link m8, I'll give it a read over tomorrow.Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
I'll edit my initial post.
edit::: [I]Dont have ability to edit initial post -- sry for the inline..[/I]
Looks like I'll be gettingLeave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Im not sure what you mean by series (sorry for my noobness =\ ), but I will list diameters and unique printings for each cap.
680uF 25Volts (x2) (1cm Diam) (KZH print) (temp. [B](M)105oC 7(2) 7G [/B])
1000uF 16Volt (1cm Diam) (KY Print) (temp. [B](M)105oC 7(T) 5E [/B])
1000uF 25Volt (1.2cm Diam) (KY Print) (temp. [B](M)105oC 6(7) 9Z [/B])
680uF 25Volt (1cm Diam) (KY Print) (temp. [B](M)105oC 7(T) 4E [/B])
470uF 25Volt (1cm Diam) (KY Print) (temp. [B](M)105oC 7(T) 6K [/B])...Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
To list the caps they are as follows:
(two middle right side of the board)
680uF 25Volts (x2)
(Bottom left of the board listing left to right/top to bottom)
1000uF 16Volt
1000uF 25Volt
680uF 25Volt
470uF 25Volt
470uF 16Volt.Leave a comment:
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Re: Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
This monitor came factory direct 3 years ago (New, not reconditioned), so it couldnt have been recapped unfortunately.
@PCBONEZ:
Could you describe what I would be looking for re: cold solder joints? Im not familiar with the terminology m8.
Thanks...
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Emachines L22YCET Bad Cap symptoms, but no sign of bulging caps.
Hey there. First post, but have been reading a bunch on this site to try to resolve my query.
I have a 22" Emachines L22YCET (I know, thats the first problem. lol).
Its about 3 years old, and now the backlight is not lighting up. Exact same symptoms as a bad capacitor diagnosis -- screen turns on for 1.2 sec then backlight goes out, but lcd is still active (if I shine my headlight at the screen I can make out the image - even access monitor menu).
I first tried turning down the brightness and contrast to see if I could get a little staying power out of the monitor...Last edited by Spz0; 01-24-2012, 06:48 PM.
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