JP1 Remotes

So I think the problem was that I'm only getting like 1v between pin 1 and pin 3 of the remote. Rather than chase that down, I'm going to use an external power supply (which is effectively what I had with my MAX232 circuit).

Indeed there was a connection issue inside the remote for pin 4. After repairing that, I can now manually put the remote into serial comms mode and also reset it to normal. In fact, once I have manually put the remote into serial comm mode, I can use a MAX232 TTL-RS232 driver to talk to the remote ...

When you "reset" the remote (which will take it out of serial comm mode and put it into "normal operating mode"), you'll see the 2 LED blinks. On a JP1.3 remote like your RS 15-100, you'd leave JP1 pin#4 ('/Rx') high and strobe JP1 pin #2 ('/RESET') and the remote would reset. As you can see, on ...

Is there anyway to tell if the remote is actually going into serial comms mode or not? Do the two LED blinks indicate anything?

Before I forget, what operating system are you running on? That code you're running from Tommy Tyler's utility pack is using the old library code, which is seriously broken for Linux users (like myself).

I'm running debug_tester.exe under wine in Linux. Using RMIR also does not detect a remote ...

I'm pretty sure that they *are* EBC transistors. At least, when placed into my DMM with the flat side down, that's how it identifies them. However, in the interest of completeness, I swapped them all around. Now I get the following output from debug_tester.exe:

http://pastebin.com/m482cee5d

Thanks ...

Thanks for the reply. I have visually rechecked the wiring, and I can't see any problems. here's a photo:

http://twitpic.com/rd8rv

The DB9 is connected at the bottom left, 7-5-4-3-2 from left to right. the remote connect is at the top left, 6-4-3-2-1 from left to right. All transistors are 2N2222 ...

I built the three transistor version of the JP1.x (flash) serial cable, and have had no luck getting it to work. When I hook everything up and run jp1xtest.exe, the remote control "reboots" (all segments light on the LCD) and the LED blinks twice. The remote is an RS 15-100. However, the computer ...

Here's what the area around R21 looks like. The left end of R21 connects to the right-angle trace and the right end connects to the left end of C27 below.

Aha! Sure enough I'm lacking continuity between R21 and C27. Does that circuit relate to IR transmission? Seems odd that the TX pin of the ...

Thanks for the reply! Unfortunately it is a surface mount board. Additionally, the other side is the Lcd didplay.

While attempting to add a JP1 header to this 15-100, I accidentally removed R21. Worse, I pulled up one of the pads under the resistor. The remote actually seems to work flawlessly, except that no IR transmission actually occurs. The device doesn't respond, and the red LED in my IR receiver (which ...