Uni-T (Uni-Trend) UT101 repair manual / circuit diagram and contactor layout

Just a brief one, in case I do it again in the future.

I took my Uni-Trend UT101 meter apart to replace the 10A fuse. To do this you just remove three screws from the case and the board pops out. Stupidly I took it all apart before I realised I could get to the fuse, and the rotary selector fell apart along with the five contacts.

I contacted Uni-Trend, which despite being a Chinese company (and less likely to answer my English email I thought) very quickly forwarded my query and sent me the circuit diagram pdf, fantastic service and gave me more faith in Chinese products and their support!

Anyway I sat down and worked out the contacts needed to get the diode tester working. If you can’t see it in the picture then if 1 is the inside of the selector and 5 is the outside then

Left side of wheel – 5 and 3
Right side – 4, 2 and 1

UT101 circuit diagram.

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Image Resizer Powertoy for Windows 7

Found a great image resizer like the one in XP

Image Resizer Powertoy Clone for Windows

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How to get an old Epson Scanner (Perfection 1200U) working under Windows 7

I thought my scanner would need to be ditched, or more likely I’d have to install it on an old pc and run that. Thankfully this guy on youtube here figured it out. I should have thought of it really but here’s what I did…

  1. Get the XP drivers from the Epson website (the 1200U drivers are here under TWAIN Driver v5.53A).
  2. Extract the drivers.
  3. The setup.exe will run automatically, cancel it.
  4. Navigate to the setup.exe (probably in C:\epson\ somewhere), right click and go to “Troubleshoot compatibility”.
  5. A few moments later it’ll give you the option to run it in XP SP2 compatibility mode, which installs properly and now I can use my scanner :)

If you found this post helpful and have a UK company you wish to advertise please check out the company I work for The National Pages, here’s an example of a listing for Car Finance in Reading.

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Cleanup failed to process the following, can’t move svn-work to svn-base, access is denied.

Had this error a lot, we only seemed to have a problem when we were committing images though, so I thought it was a problem with that.

Cleanup failed to process the following paths:
- \\ourServer\ourDirectory\
In directory ‘\\ourServer\ourDirectory\images’
Error processing command ‘committed’ in ‘\\ourServer\ourDirectory\images’
Can’t move ‘\\ourServer\ourDirectory\images\.svn\props\imageName.jpg.svn-work’
to
‘\\ourServer\ourDirectory\images\.svn\prop-base\imageName.jpg.svn-base’:
Access is denied

We run VisualSVN server on Win7, serving up a local (Win 7) repository. All our files are checked out using Tortoise to a samba share under Debian. After some googling it turns out that a particular version of samba causes this error. To solve it I did a few things

  1. Established what version of Samba we were running by running
    smbstatus
  2. I then updated our samba by running
    apt-get update
    apt-get upgrade samba
  3. I then edited smb.conf following the discussion at http://tortoisesvn.tigris.org/ds/viewMessage.do?dsForumId=4061&dsMessageId=989775, what to do can be found at http://tortoisesvn.tigris.org/faq.html#samba but basically
    nano /etc/samba/smb.conf
    find the line [global] and underneath add
    delete readonly = yes
  4. Restart samba with
    /etc/init.d/samba restart

And things played nicely ever since!

If this helped you please check out the business directory I work for, for example here are Computer Consultants in Taunton, Somerset. You can get a free advert with us!

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AVG & Spotify – Runtime packed themida multiple threat detected

Started getting a “Multiple threat detection” warning from AVG Antivirus today. I guess something updated with AVG and now it finds spotify a problem. I trust spotify so I’m going to add it to my list of AVG exceptions. This is how you do it

  1. Open AVG
  2. Double click Resident Shield
  3. Click Manage Exceptions
  4. On the left click Excluded Files
  5. On the right click Add
  6. Browse to C:\Program Files\Spotify\spotify.exe and Open that
  7. OK that screen
  8. Cancel the next screen

Now AVG won’t be look at spotify.exe any more.

If this helped you please check out the free advertising directory I work for – The National Pages.

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Get Thunderbird 3 working with Lightning and Google Provider

I just moved from Thunderbird 2 to 3, using the excellent mozbackup tool to backup/restore (I was also changing machine as well).

Lightning only works in beta with Thunderbird 3, and Google Provider fails. I followed various guides, but none worked, until I used the en_US version of things from

http://releases.mozilla.org/pub/mozilla.org/calendar/lightning/releases/1.0b1rc1/win32/en-US/

Just grab the two .xpi files and add them to your Thunderbird 3 addons.

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British English Dictionary for Thunderbird 3

The British English dictionary for Thunderbird 3 wasn’t working, I’ve hacked it about a bit so it’s now version 3.0.* compatible, you can download the .xpi from me here at

http://russtaylor.co.uk/files/british_english_dictionary-1.19-fx+zm+tb-version-3-compatible.xpi

The original file can be found at https://addons.mozilla.org/en-US/firefox/addon/3366

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FUNCTION databasename.CONCAT does not exist

Got this error in MySQL on my dev box, but not online, despite running MySQL 5+ on both machines.

Turns out in some versions of MySQL you cannot have a space between a function name and it’s parameters, e.g.

CONCAT (MyField, ‘ some text’) <-BAD
CONCAT(MyField, ‘ some text’) <-GOOD

So good practice is to never put a space in ;)

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Error when importing to subversion repository – “The requested operation cannot be performed on a file with a user-mapped section open”

I wanted to move a Subversion repository from a flat structure into the more desirable

My Repository
/trunk
/ branch
/ tag

folder structure. I found the easiest way to do this was to dump the repository to a file, then import it again in the correct location, something like

svnadmin dump C:\Repositories\OldRepo > OldRepoDumpFile
svnadmin load –parent-dir /trunk C:\Repositories\NewRepo < OldRepoDumpFile

On the load though I got the following error, at different times during the import

The requested operation cannot be performed on a file with a user-mapped section open.

This literally means the file is open somewhere else, where??? AVG Anti-Virus (or your virus scanner of choice). I went into AVG, disabled the Resident Shield (temporarily) and the file loaded absolutely fine (and a lot faster to boot).

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Loaderlock was detected error in VS 2008

I keep getting this error and forgetting how to solve it, so time to blog.

When debugging in Visual Studio 2008 I sometimes get

Loaderlock was detected

DLL ‘c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\f8542944\24ca7c20\assembly\dl3\83245f41\feb88c06_9e6eca01\someNaughty.DLL’ is attempting managed execution inside OS Loader lock. Do not attempt to run managed code inside a DllMain or image initialization function since doing so can cause the application to hang.

The solution is to switch off the Managed Debug Assistant (MDA) for Loaderlocks.

Debug -> Exceptions -> Managed Debug Assistants and uncheck the LoaderLock item.

Thanks to Simon Harriyott post here for solving it.

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