View single post by Huw Griffiths
 Posted: Sun Jan 3rd, 2010 10:34 pm
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Huw Griffiths

Joined: Wed Oct 21st, 2009
Location: Cwmbran, Wales, United Kingdom
Posts: 261
W C Greene wrote: I am not familiar with the receiver you are using. Black wires (usually) mean negative and red (ditto) mean positive. The input from battery to board is critical, polarities must be observed.I am not familiar with this board and don't want to get you into "hot water"... 

This is an issue I've often encountered.

Because I've got some electrical / electronic training, a number of people (students - more recently friends and relatives) have collared me, expecting instant, detailed, guidance about equipment I've never seen - then haven't liked it when I've been unable to answer.

The advice is excellent - but anything else needs manufacturer's data.

A lot of equipment will have the manufacturer's name and model on it - perhaps other info as well - often on a plate or sticker known as a "nameplate". Given this info, it might be possible to go to the manufacturer's website and download datasheets, instructions, application notes, or other info (much of which is likely to come in very useful).

It's a bit like the component datasheets I rely on whenever I design, build or modify electronic circuits. Without this stuff, I might be lucky and just about able to guess how to switch something on. With this stuff, there's a chance I might actually be able to do something useful.

This is why I've always made a point of holding onto data - I just never know when I might need it!

By the way, the build is looking very neat so far - always a good sign. When you've got things finalized, I hope you're also able to run the wires as neat as this - and label them - then draw up an easy to follow wiring diagram.

(There's nothing wrong with a bit of slack in the wires, to allow for moving things when you need to access other stuff - all that matters is that the slack doesn't get in the way and doesn't get tangled!)

This isn't a criticism - I'm just thinking ahead, in case you need to modify it or do any repairs a few years down the line. This could easily happen - usually after you've forgotten what goes where - and I wouldn't want all your good work to be in vain. (Before you ask, this comment is based on experience - I've often had to modify things, especially other people's work - and I'm just trying to stop you falling into a common trap!)



Last edited on Sun Jan 3rd, 2010 10:39 pm by Huw Griffiths

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