Re: Caps, correct spec wrong size question
Thanks a lot for the info, appreciate it
aaronmarsh632
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Last Activity: 03-10-2014, 08:08 AM
Joined: 11-08-2010
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Re: Caps, correct spec wrong size question
Hi,
Thanks for the replies. I do have some identical caps in the post but I just wondered for future reference.
Where would be the best place to find datasheets for caps please? I did google the cap number (21IGS) but I didn't see anything specifically identifying it.
They are for a PSU from inside a TV, its only a cheap TV but i'd sooner fix it than replace it.
I'll try to get a picture soon but I have no camera at the moment.
Thanks for the helpLeave a comment:
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Caps, correct spec wrong size question
Hi,
There are a couple of bulging caps on some of my equipment they are 470uf 25v 10mm x 16mm. I have some new caps which are 470uf 25v 8mm x 15mm.
Will these work or should I use caps which are identical in size?
Thanks -
Re: Replacement caps question
Hi,
Thanks for the information, i'll check out the poly modding.Leave a comment:
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Replacement caps question
Hi,
I'm replacing some caps on a pc motherboard. I have done so mannnyyy times before but just wanted to ask how important is it to use the exact same size caps as te originals, until now I replace the same spec and size but just wondered if it matters too much. Also can I replace bad caps with the newer solid state type aslong as the specs are the same?
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Re: Adapter LED flashing, laptop not switching on
Hi, finally got the power IC which I have swapped, but still doing the same, think ill call it a day with this machine now. Thanks for your help.Leave a comment:
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Re: Adapter LED flashing, laptop not switching on
Cheers, I'll order 1 from ebay n see what happens after replacing it, just before I do I tried takin' the resistance readings again to see if I can get anything and now i'm getting something. I have numbered the pads and reuploaded the image so you know what pads im on about (I did remove the components, just reused the image for convenience)
1 - 44.2 for a second then changes to 1.2-1.1 average (then stayes at 1.1)
2 - anything from 76.4 to 114.8 for a second before just displaying -1
3 - nothing
4...Leave a comment:
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Re: Adapter LED flashing, laptop not switching on
Hi thanks for checking, I have taken a closer image of the chip, i cant find anything that means anything to me through a google search, maby you'll know more about it than me. Heres the pic anyway.
Thanks...Leave a comment:
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Re: Adapter LED flashing, laptop not switching on
Hi Ben thanks for your time, would the controller chip for the MOSFETS be the 48-pin surface mount chip next to the DC Jack named ISL9504? I have googled the chip and some1 is calling it the Power IC, would this be the chip you're refering to? If not could you possibly identify it from my picture please? I can replace these chips if need be as I have done 128-pin ic's in the past not much bigger than this 1.
ThanksLeave a comment:
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Re: Adapter LED flashing, laptop not switching on
Hi, thanks for the replies. I have set my multimeter to 200 ohm which is the lowest on the settings and it gives a default reading of 1 without doing anything, so I put 1 prong on the chassis and the other on 1 of the pads but the reading doesnt change - am I doing something wrong? This happens on all 6 solder pads (3 pads per component). Also I notice with both components removed the charger LED no longer flickeres.
ThanksLeave a comment:
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Re: Adapter LED flashing, laptop not switching on
Hi, I finally got the new parts this morning and soldered them on, unfortunatly I still get the same problem - does anyone know what could be causing this please?
thanksLeave a comment:
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Re: Adapter LED flashing, laptop not switching on
Hi, thanks for that, I have been searching for the top number - i assumed the others were revision numbers etc so didnt use them. Thanks for that.Leave a comment:
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Re: Adapter LED flashing, laptop not switching on
Sorry for the tripple post but im having trouble finding a replacement. The information I can get off the component is...
1H34SB
FDD
6685
Both those parts on the board are the same. I dont currently have ano other motherboards which I can transplant the parts from, and I cant find any information regards these on the net so I dont know what an equivalant alternative would be, can anyone offer any ideas please?
thanks againLeave a comment:
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Re: Adapter LED flashing, laptop not switching on
EDIT: I think I may have found the problem, I left the charger plugged in for a few minutes and if I get close I can smell - not burning as such but smells like heated flux, then I noticed some bubbling from 1 of the (if im not mistaken) voltage regulators. Not the 1 I have marked blue, the 1 above it. On the top of the component is where I can see it bubbling where its soldered (not the pin side). I will have a look to see if I can get a replacement from ebay orsomewhere and once I replace it I will post results.
T...Leave a comment:
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Re: Adapter LED flashing, laptop not switching on
Hi, thanks for the replies. I have tested the jack with a multimeter and its giving an output of average 2.5v (should be 19v in my case). Which would be the bipolar caps? I'm guessing the large cylinder cap between the battery connector and cpu?
thanksLeave a comment:
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Re: Adapter LED flashing, laptop not switching on
Hi, yeh I tried another charger before stripping down the laptop. I have seen this lots of times and trying a new charger has never solved the problem for me atleast. I also changed the jack which hasnt fixed the issue, have you any suggestions as to what may be causing the problem?
thanks for your replies.Leave a comment:
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Adapter LED flashing, laptop not switching on
Hi,
I did reply to a previous thread but I thought I'd create a new 1 for my own problem and provide an image with it.
Basically if I plug the laptop charger in the LED on the charger flashes rapidly and the machine wont boot up. I have stripped the laptop and tried changing the jack but problem is still there. After reading the previous post it sounds like it could be something called the 'startup cap' I have taken a picture of the motherboard where the DC jack is connected and circled the part which I think is the 'startup cap'. Can anyone confirm if this is the... -
Re: Laptop adapter LED flashing
Hi,
I have seen a few laptops with this fault description, I have one at the moment which is doing this exact thing. Where can the 'startup cap' be found usually and does it just look like a standard cylinder shape? can anyone offer any example images of a laptop motherboard displaying this component please?
thanksLeave a comment:
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Replacement cap help
Hi,
I am wanting to replace a burst cap on a dell motherboard but i'm struggling to find a replacement.
it is a - 820uf 6.3v diameter = 8mm length = 20mm
please does anyone know where i can get 1 from (pref UK) or can I substitute it with something else?
Thanks
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