A1200 LED Re-configure.

Zetr0 · 23 September 2006, 02:11

Hello there my friends,

I am (reconfiguring) the LED's from an A1200 for (a12) modified project *its a little special and cant wait to show you... but not yet... its not ready*

Okay...

the question i have is, does anyone know what resistors are used, as mine have faded I cannot make the difference of yellow / brown or red stripes on those little things..

I have also noted from the black line that one (the bottom one in the bellow diagram) is in a reversed direction compaired to the others... is this important or just a weird production thingy.

anyways cheers in advance

PS.
the diagram is from the back of the led board (so its upside down)

23 September 2006, 08:12

The resistors are all the same - "orange" "orange" "black" "Gold" (33 ohm 5% tolerance). You can use 1/4 or 1/2 watt verions as replacements. The mounting direction is not important as resistors are passive non-polarised components.

Warning - each of the A1200 LEDs are actually two leds in a single package that are connected series on my Commodore A1200 Rev 1 LED board. You'll need to factor in twice the voltage drop in to your calculations if modifying the circuit.

Zetr0 · 23 September 2006, 10:11

Thanks Jlin, thats mighty helpful

after searching the internet last night i found this, wich might interst a some

has anyone here made a led for thier PCMCIA access?

http://www.doobreynet.co.uk/extraled.html

23 September 2006, 02:11	#1
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	A1200 LED Re-configure. Hello there my friends, I am (reconfiguring) the LED's from an A1200 for (a12) modified project its a little special and cant wait to show you... but not yet... its not ready Okay... the question i have is, does anyone know what resistors are used, as mine have faded I cannot make the difference of yellow / brown or red stripes on those little things.. I have also noted from the black line that one (the bottom one in the bellow diagram) is in a reversed direction compaired to the others... is this important or just a weird production thingy. anyways cheers in advance PS. the diagram is from the back of the led board (so its upside down) Attached Thumbnails

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23 September 2006, 08:12	#2
jlin Posts: n/a	The resistors are all the same - "orange" "orange" "black" "Gold" (33 ohm 5% tolerance). You can use 1/4 or 1/2 watt verions as replacements. The mounting direction is not important as resistors are passive non-polarised components. Warning - each of the A1200 LEDs are actually two leds in a single package that are connected series on my Commodore A1200 Rev 1 LED board. You'll need to factor in twice the voltage drop in to your calculations if modifying the circuit.

23 September 2006, 10:11	#3
Zetr0 Ya' like it Retr0? Join Date: Jul 2005 Location: United Kingdom Age: 49 Posts: 9,768	Thanks Jlin, thats mighty helpful after searching the internet last night i found this, wich might interst a some has anyone here made a led for thier PCMCIA access? http://www.doobreynet.co.uk/extraled.html

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