JP1 Remotes

julli mullins2 · Joined: 17 Dec 2004 Posts: 1

Hello!

I'm total newbie with the JP1. The Remote (URC 9962) is some where between Canada and Finland. Currently I'm collecting the necessary stuff for the simple JP1 cable. I have all other components except the right diode. I managed to find a 1N4007 diode from my stash. Is it ok to use it? If I try the 1N4007 diode, can it break my new remote or is it safe to try. I googled and from the information I found, I learnt that the 1N4007 has greater maximum current (1A) and maximum reverse voltage (1000V). But both diodes have the same voltage drop of 0.7V. I don’t have a clue what this stuff means or even what the diodes does;-) Please, can some electrician give me some help?

Best Regards, Bibob

johnsfine · Posted: Fri Dec 17, 2004 5:24 pm Post subject:

Trying a wrong diode is NOT going to damage your remote.

Some PC printer ports may make the JP1 process picky about battery voltage in the remote (may only work with new batteries, may only work with low batteries, may only work with no batteries). A poor choice of diode would increase the chance of issues like that, but probably still let you find some choice of batteries or not which works.

I have no clue about those specific diodes (mabe someone with a clue will answer) but I know the max current and max reverse voltage won't be a problem (currents and voltages don't get that high in JP1). Using a diode with a higher voltage drop would be a problem. But the same or lower should be fine.

mr_d_p_gumby · Posted: Fri Dec 17, 2004 6:43 pm Post subject:

It certainly won't damage anything to try it. The only other issue I can think of that might be a problem would be the speed with which the diode turns on and off (the 1N4007 is slower than the 1N4148). In any case, you could try it, and if it does not work you could always replace it with a 1N4148 (or 1N914), or one of the Schottky diodes.
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