Hello everyone!
I have a faulty 440V AC frequency converter used onboard ship for supplying of 440V 3phase electric motor which is used to open and close covers of cargo holds.
Its made of two parts, power module and some kind of controller. Few days ago it suddenly stopped working by means of no power on its outlet while controller kept working, showing 0 amps on output.
I've dismantled it and found a suspicious burning spots around one component which I think is some kind of voltage regulator but I have no idea how to specify what type it is. I hope...
SmartVision
Senior Member
Last Activity: 05-08-2018, 08:34 PM
Joined: 06-06-2011
Location: Split , Croatia
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Re: Scart problem
Didn't help :O -
Re: Scart problem
There are outputs RGB and CVBSLeave a comment:
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Re: Scart problem
I didn't really understand the meaning of switching box to composite ?Leave a comment:
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Scart problem
Hi everyone!
I think I have problem with scart on my monitor/TV.
My digital reciever is connected to my TV with scart cable and some colors are missing.
I tried with another scart cable and no changes. Also when I opet TV menu colors are normal so obviously that problem is scart connection.
Look at pictures, I noticed that pink and green are more visible like blue is missing or some other.... -
Re: Copper lines on circuit board
Thank you guys vecry much
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Re: Copper lines on circuit board
Thanks everyone for answers, I'll do my best to do it right.
Also I have a problem with new transistor's dimensions. I ordered this one from ebay and it's bigger than the old one:
[url]http://www.ebay.com/itm/LD1084D2T-R-5A-Adjustable-Voltage-Regulator-lot-of-5-/150910799167?pt=LH_DefaultDomain_0&hash=item2322fc0d3f[/url]
Crap
Re: Copper lines on circuit board<br...'s dimensions.
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Re: Copper lines on circuit board
Side legs of the transistor (see the picture), middle one is not used.
Picture is before the damage happened....Last edited by SmartVision; 10-05-2012, 11:59 AM.Leave a comment:
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Copper lines on circuit board
Hi everyone, I need help!
I tried to change voltage regulator (transistor) on circuit board of my monitor and I got in trouble with copper line.
First I tried to desolder transistor but somehow I tore whole copper line...
Now I cant solder back replacement transistor and I don't know what can I do so if anyone could help me I would be thankful. -
Re: Ok to use 125v 8ah fuse in place of 250v?
I agree, why to take chances and risk when you can be sure. Bad fuse can make you a lot of damage to your plasma. So take a 250V rating fuse and sleep with a clear conscience.
...
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Re: My Iron just went bang. Pic of internals.
Maybe the cap is not the only problem, but electronics characteristics are falling with ages...
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Re: Regulator replacement
Hi again
I may found one regulator that might work (on old motherboard) , so can someone check it for me if its not a problem
Look at picture....Leave a comment:
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Re: Regulator replacement
Ah ok then , Ill have to give 10 dollars for one regulator
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Re: Regulator replacement
What about this one :
[url]http://hr.rsdelivers.com/product/national-semiconductor/lm1084is-adj-nopb/voltage-regulator-lm1084is-adj-5a/5339296.aspx[/url]
If you cant see the link look at the picture.Re: Regulator replacement<br /> <br...t the picture.Re: Regulator replacement
What about this one...Leave a comment:
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Regulator replacement
Hi all , I need little help.
I need replacement for Voltage regulator AS1084R that is available on eBay.
I found one on ebay but I'm not sure is it good replacement :
[url]http://www.ebay.com/itm/2-pieces-IRF3205S-TO-263-Brand-new-Original-F3205S-/220983887780?pt=LH_DefaultDomain_0&hash=item3373aa87a4#ht_1846wt_1185[/url]
[url]http://www.aliexpress.com/fm-store/905829/0-433962957/IC-IRF3205S-TO-263-IRF830PBF-electronic-component-part-pic-bga-diodes-mosfet-integrated-circuit-IC-semiconductor.html[/url]
So if anyone can... -
Re: Samsung Syncmaster 713N
I measured output voltages:
1 - 0V
2 - 0V
3 - 12.98V
4 - 12.99V
5 - 12.99V
6 - 7.93V
7 - 7.93V
8 - 12.92V
9 - 10.94V
Is that fine ?Leave a comment:
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Re: Samsung Syncmaster 713N
Hehehe , you can get beer for 1-2 dollars , bottle of wine 4-5 dollars , whisky 10-20 dollars (dunno which one you want)... I'm sure that you will enjoy in Croatia Ask whatever you need
P.S. Does anyone know where is PlainBill
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Re: Samsung Syncmaster 713N
Ok I did that (see the picture to know if we meant the same).
But there is something weird , in my first video I posted , when I turned monitor on it went from white to blue and to black.
Now it went from white to blue then some weird lines blinked and then it went to black.There is some difference now and before but I dont know does it mean anything ? You can see the new video.
[url]http://www.youtube.com/watch?v=QV8uv25dvAs[/url]Re: Samsung Syncmaster 713N<br /> <...ure to know if...Leave a comment:
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Re: Samsung Syncmaster 713N
I tried reattaching all cables but it didn't help.Leave a comment:
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Re: Samsung Syncmaster 713N
Uhh , I dont really understand what is T-con ?...Leave a comment:
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