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Old 2009.04.25, 02:44 PM   #46
ub0211042
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Quote:
Originally Posted by LED View Post

Ub02... did you download the manual on the same link I gave earlier ?
Read the bit about how to check wich com port you should use.
If that doesnt help then I suppose its the usb- serial convertor holding you back.
yep, i did check which comm port assigned but still no luck...do i need to set the ports setting?

Bits Persecond
Data bits
Parity
stop bits
flow control
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Old 2009.05.11, 06:03 PM   #47
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hm.. i'm having similar problem, built the cable but can't read back values and no idea if anything i've written has taken effect...
Looking at the circuit however, how does it generate the +/-12V signal levels for the RS232 serial port for read back?
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Old 2009.06.16, 06:20 PM   #48
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been working on this with no luck, 1st issue is I could only get 47k resistors, is this too much in place of the 39k?
2nd, I built the circuit wrong once and don't have a meter to test the transistors, could I have blown them easily? I bought the last 2 they had, I'll check another store for more.

Is there a simpler version of this if I don't mind using batteries in the car, I just want to connect to 2.4 via regular serial, no USB interface.
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Old 2009.06.16, 11:27 PM   #49
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Look for a maker's mark on your transistors if you don't know what they are. Go to the company's website and look for the data sheet. Be SURE you know which legs are base, collector and emitter. The transistors I used had the base and collector reversed from the physical positions shown in Dabinn's freehand drawing (page 1), so be sure you've got that right. Check the polarity of the diode; a heavy black line on the piece matches the line on the schematic. Check continuity everywhere (and check for shorts). Check resistances. I don't know whether 47K will work in the circuit; I used 39K, but had to combine two resistors in series to do it.

Procedure I follow is this:

1) Make sure you've got a computer with a working COM port and you know what port number it is. Put batteries in the car.

2) Start the program and set the appropriate COM port.

3) Plug the connector into the car's ICS port, push the pairing button and turn the car on while holding it.

The LED will turn bright red. Release the pairing button. If the light turns dim, you've got a comunication or wiring problem. If the light stays bright after releasing the pairing button, you're good to go (you will not need to repair with your TX after this).

Try changing a value and click the 'program' button. Click 'Reset' and the displayed values return to the defaults. Click 'Read'. If the changed value you programmed initially is read back and displayed, things are as they should be.

This is with V1.02 of the ICS Manager program.

I finished putting this together last night using two Fairchild 2N3904's for the transistors and it worked a treat. Kicking up the punch and reducing the dead zone worked great for reducing wander on my AWD. Thanks for the info Dabinn; you rock!

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Old 2009.06.17, 07:21 AM   #50
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I used the fairchild's pin out for the transistor radioshack sells, but I have no idea if they are actually fairchild or not. I am going to pick up a breadboard so I can lay this out neater, then I can post a pic so maybe someone can see what I have wrong.
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Old 2009.06.19, 07:54 AM   #51
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I've gotten the circuit to at least bind now, but still no communication, I got new transistors because they were backwards, and I put a new diode in in case I blew it. Voltage does not get past the transistors.
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Old 2009.06.19, 09:38 AM   #52
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Are you quite certain you've got the Base, Collector and Emitter legs correctlyl positioned in the circuit according to the schematic on page one? Diode polarity correct? Use your VOM to test continuity and resistance in all legs of the circuit. If everything seems to check out, then those 47K resistances you're using may be the culprit...

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Old 2009.10.19, 05:04 AM   #53
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Is anyone willing to sell one that they have made? I don't have any soldering expertise and so i would probably break something!
It would be for a 2,4Ghz AWD, so i can buy the 2.4Ghz cable seperately, just need the main one!
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Old 2009.10.19, 05:44 AM   #54
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Quote:
Originally Posted by addicted View Post
Is anyone willing to sell one that they have made? I don't have any soldering expertise and so i would probably break something!
It would be for a 2,4Ghz AWD, so i can buy the 2.4Ghz cable seperately, just need the main one!
check ur pm
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Old 2009.11.24, 11:07 AM   #55
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Is there a way to re-program the handheld 2.4ghz ICS system to run the MR03?
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Old 2009.12.16, 12:45 AM   #56
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hello,

I have few units available if anyone interested to buy em.
http://mini-zracer.com/forums/showthread.php?t=33296

Thanks.
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Old 2009.12.23, 01:37 PM   #57
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iv had no problems with the cable on a 232 port so i decided to get a usb adapter and try it on my vista enabled laptop

great news is it works
if you are having problems i can only think your adapter didnt come with a driver disk

i carnt work out how to post the drivers but if any of you want to give them a go PM me your email and i will send em you
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Old 2009.12.23, 07:08 PM   #58
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iv had no problems with the cable on a 232 port so i decided to get a usb adapter and try it on my vista enabled laptop

great news is it works
if you are having problems i can only think your adapter didnt come with a driver disk

i carnt work out how to post the drivers but if any of you want to give them a go PM me your email and i will send em you
u can start with me
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Old 2009.12.23, 07:31 PM   #59
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nota a problem buddy just send me your email

KRYTEN is going to try and get a link set-up as he has some account that lets him and i dont lol
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Old 2009.12.23, 08:35 PM   #60
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nota a problem buddy just send me your email

KRYTEN is going to try and get a link set-up as he has some account that lets him and i dont lol
ub0211042@gmail.com
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