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Please help a newbie with JP1.2 interface build
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jherrick
JP1 Vendor


Joined: 31 Dec 2003
Posts: 225
Location: South Berwick, ME

                    
PostPosted: Sun Jan 13, 2008 11:03 pm    Post subject: Reply with quote

Check to make sure your transistors are oriented correctly, with the base, emitter, and collector connected properly.
Jim
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givemestella



Joined: 12 Jan 2008
Posts: 16
Location: UK

                    
PostPosted: Mon Jan 14, 2008 5:57 am    Post subject: Reply with quote

Quote:
what will happen to them if they were put in the wrong way round?

They won't work. Surprised


Yes but i have tried the diodes both ways round will this have damaged the diodes or another components?
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underquark
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Joined: 20 Jun 2005
Posts: 874
Location: UK

                    
PostPosted: Mon Jan 14, 2008 10:32 am    Post subject: Reply with quote

Maybe it's just a colour reproduction thing in your photo's but are all those resistors the correct values?
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givemestella



Joined: 12 Jan 2008
Posts: 16
Location: UK

                    
PostPosted: Mon Jan 14, 2008 5:16 pm    Post subject: Reply with quote

underquark wrote:
Maybe it's just a colour reproduction thing in your photo's but are all those resistors the correct values?


to be honest i dont know. i asked the shop for the ones listed in tommy's guide but they didnt seem too sure - and as i don't know about components i couldn't tell you. Kinda hoping somone here would know.
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Evan_s



Joined: 24 Mar 2007
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PostPosted: Mon Jan 14, 2008 5:57 pm    Post subject: Reply with quote

http://en.wikipedia.org/wiki/Resistor

Resistor values aren't hard to figure out. It just can be hard from bad pictures.
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underquark
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Joined: 20 Jun 2005
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PostPosted: Tue Jan 15, 2008 8:33 am    Post subject: Reply with quote

Can we go back to the start?

What computer are you using?
What operating system? (and is it 32-bit or 64-bit?).
Does the serial port work properly for other devices?
Are you using the latest version of IR and are all the RDF's installed in the correct directory, etc>?
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givemestella



Joined: 12 Jan 2008
Posts: 16
Location: UK

                    
PostPosted: Tue Jan 15, 2008 8:36 am    Post subject: Reply with quote

Evan_s wrote:
http://en.wikipedia.org/wiki/Resistor

Resistor values aren't hard to figure out. It just can be hard from bad pictures.



i think you're right. The supposed qty.3 100K resistors have a green band this makes them 10,000,000 Ohms resistors instead of 100,000 Ohms. Right, i have been back to store and told them to look in the drawer labeled "10M resistor" and voila there are the 100K resistors with an orange band instead of the green banded 10M resistors. They are so stupid that, after informing them of their error, they still refused to put the correct resistors into the correct boxes so that the same mistake wouldn't happen again. They charged me for the replacements but charged the 10M price despite now supplying 100K resistors - that was good of them! ( i know they don't cost much but that wasn't the point!)

Will fit 100K tonight and fingers crossed it should now work. Hopefully this is my last question on this subject. Will using the 10M resistors have damaged anything? components, remote or PC?

Thanks everyone for all your input much appreciated.
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underquark
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PostPosted: Tue Jan 15, 2008 10:21 am    Post subject: Reply with quote

Resistor color bands and their values.

Last edited by underquark on Wed Jan 16, 2008 5:50 am; edited 1 time in total
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givemestella



Joined: 12 Jan 2008
Posts: 16
Location: UK

                    
PostPosted: Tue Jan 15, 2008 2:53 pm    Post subject: Reply with quote

thank you all it now works like a charm. Shame i ordered an already built one last night out of frustration. Still now i have two.
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Mark Pierson
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Joined: 03 Aug 2003
Posts: 3017
Location: Connecticut, USA

                    
PostPosted: Tue Jan 15, 2008 3:37 pm    Post subject: Reply with quote

givemestella wrote:
They are so stupid that...
Perhaps you should find another electronic parts supplier! Surprised

Glad to hear you got everything sorted out with your interface.
_________________
Mark
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