16 more posts in this thread. [Missing image file: fuente%20impresora%20canon%20k30290.jpg]
I salvaged this power supply from a printer (model number K30290) and I want to use it as a lab power supply. It has 5 wires: one blue, one yellow, one red, and two black. The back says the output is 24V 0.5A and 32V 0.85A.
The problem is, when I measure the voltage of the wires, red has 7.48V, and blue shows 9.91V. Is this normal?
Another thing, the yellow wire outputs no power. What's it for?
Convert byte to a Number String
23 more posts in this thread. [Missing image file: 1350869197814.jpg]
Lets say you have a 2 MB byte array, being the first bytes the most significant bytes and the last one the lest significant. i.e.
2 * 256 * 256 * 256 = 33554432
1 * 1 = 1
Decimal = 33554433
And you want to convert that "endless" chain of byes to a unsigned decimal, something like this:
input = FF,00,23,44,52,12,44,A0,DE,AD,BE,EF,F0,F0
output = 082397459283742370597423095724390752L
How would you do it?
I needed to convert a 128 bit string (UUID, GUID) to Code128C (because in Code128C, every 2 decimal digits is one single char) So I decided to convert 128 bit in C# to Decimal.
a 128 bit number represented as Decimal will be as long as 39 decimal numbers, so I work around using 2 64 bit number (ulong) and using 40 decimal numbers, so my actual problem was solved.
But I was thinking... what if I wanted to put a infinite amount of data into a Code 128C barcode... What if I wanted to represent a huge number without loosing any precision.
in C#, you can only have this types:
Decimal (holds 128 bits with a Mantisa, so no good)
Double (don't know, but its not infinite)
Long (64 bits)
int (32 bits)
Of course, there is always the workaround on using a huge string and implementing your own Math operations.
You could also use BCD and code 2 digits on a single byte but no...
I want what algorithm would someone need to implement to convert a "Endless source of Bytes" to a "Endless chain of decimal numbers".
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I was here last year asking about a MOBO I found at my place of work (e-recycling plant), well I found a 32" LCD flat screen at the end of someones driveway during a curbside give away.
Anyways my problem is this. It worked or it did when I first got it, but over time I noticed it would take longer and longer to turn on. It would make it to the "Phillips" screen then turn off. so since I'm quite frugal I would like to try and fix it myself.
Anyways I was hoping you could help me figure out what the source of the problem might be and weather or not it would be cheaper to get a repair shop to look at it (just a look; I found, costs 90$) or just trouble shoot the problem and give it a wack myself since I have the spare time and curiosity to learn more about it.
I've taken the back cover off and looked at one of the PCBs (printed computer boards?) that the main power cord connects too and I couldn't notice any bulging capacitors, but found the green side to be covered in a brownish substance that wasn't sticky. I've also found this in my research:
the last part of the url being my model number...although Ive never had problems with picture just that the set takes longer and longer to "warm up" or turn on.
The reason why I ask for your help is this video of a guy fixing a "dead" tv of the same brand/make for some time and MAYBE 10 bux in parts.
Any suggestions on what components to look at or how to test them?
TL;DR my free TV takes too long to turn on, how do i fix it? It was garbage when I found it so I don't have anything to lose. Or should I just go and buy one of the same from a store and swap, if so any tips?
Please /diy/ Your my only hope....
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I have recently wanted to go as a Tanith trooper for a cosplay at some convention (and with the full set of gear, begin building my portfolio for prop work). With that, I would need to make a cloak in the nature of pic related.
My question is, how would I go about doing so? The cloaks that don't belong to the commissar look to not have any sort of pin or brooch holding them, but just slip on over the head. Also, I'm at a loss how to do the camouflage. Most of the tutorials haven't told me all that much and don't really go for what I'm looking to achieve.
8 more posts in this thread. [Missing image file: images.jpg]
You'd think a vehicle with less than 55,000 miles on it and less than 5 years old wouldn't develop a rear main seal leak, would you? But it did, damnit..
Anyone happen to know how much trouble it's going to be to replace the rear main seal? Pulling the transmission is a given. What I don't know is if I'm going to need to pull the oil pan or not, and if so, can I do it without having to pull the engine? Authoritative answers greatly appreciated.
..and yes, I'm trying to find a service manual online, and I'll be buying one in the near future. I went into debt for a newer vehicle so I wouldn't have to keep fixing shit like this, damnit..