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Old 06-13-2007, 05:42 PM   #1996
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Is it hard to fix the pins? Is there a warranty on these? For some reason I can't find it anywhere if there is.
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Old 06-13-2007, 05:58 PM   #1997
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Is it hard to fix the pins? Is there a warranty on these? For some reason I can't find it anywhere if there is.
if your in the United States, best thing to do is to send it into Ko Propo USA. (located in Gardena, California). if your outside of the US, contact your local hobby shop, they'll point you in the right direction.

you can always ATTEMPT to fix it yourself. but unless you're SUPER PRECISE with a soldering iron and know what to look for, you might be better off sending it in.
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Old 06-13-2007, 06:06 PM   #1998
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if your in the United States, best thing to do is to send it into Ko Propo USA. (located in Gardena, California). if your outside of the US, contact your local hobby shop, they'll point you in the right direction.

you can always ATTEMPT to fix it yourself. but unless you're SUPER PRECISE with a soldering iron and know what to look for, you might be better off sending it in.
When I had mine done, Robert took almost 25 minutes of work and he knew what he was doing. I sat there and watched...Not an easy task...
I would send it in...Better to be safe than sorry.
Any work you do will void any warrentee.
Better to spend the $$$ and know your getting it done right.
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Old 06-14-2007, 08:08 AM   #1999
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Default Lipo on RX

Hi anyone here try 2S1P 800mAh 7.4V lipo as a battery rx. on ko302f rx.Will it burn out the rx internel circuit.
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Old 06-14-2007, 08:16 AM   #2000
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Hi anyone here try 2S1P 800mAh 7.4V lipo as a battery rx. on ko302f rx.Will it burn out the rx internel circuit.
Your best bet would be to run it through a voltage regulator like the one from Novak for lipo receiver packs. Not all electronics can handle the increased voltages, thus the reason why many BEC circuits are set at 5 volts.
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Old 06-15-2007, 11:23 AM   #2001
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So I was going to try some more things to see if I could find the problem. But my batteries were dead in my radio. So I recharged them and no noticeable glitching just sitting on the table. I'll have to try next Tuesday.
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Old 06-21-2007, 07:17 PM   #2002
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Is it true JR is releasing a new surface radio system? Someone at the LHS told me they read about the JR Z-2 comming out soon...any news or updates concerning this?
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Old 07-14-2007, 06:32 AM   #2003
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HELLO,

WILL THE 502F MODULE AND THE 302F Rx WORK WITH THE OLDER KO PROPO MARS - R ?


THANKS........
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Old 07-17-2007, 04:55 AM   #2004
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HELLO,

WILL THE 502F MODULE AND THE 302F Rx WORK WITH THE OLDER KO PROPO MARS - R ?


THANKS........


CAN ANYONE HELP ME OUT..........


THANKS....
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Old 07-18-2007, 01:06 AM   #2005
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I am sure 302F Rx can be used with MARS-R but I am not sure about 502F module.

BTW, I have tired to put RF-501A (Ex10 AM module for mini-z) in my MAR-R and it works fine for me. And also, I put RF-103F (EX1 Mars-R FM module) to my new EX10, and it works as well. BUT the module got extremely hot after 30 mins (comparing with the 103F used in Ex1 Mars-R). I think it's not normal.
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Old 07-19-2007, 02:06 PM   #2006
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you may use the 302 rx with the the Mars R but not the 502F module.
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Old 07-21-2007, 06:14 AM   #2007
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just picked up a C2... it was the last one in the lot so i had no choice in freq. unfortunately someone is already using that frequency where i race and the shop had no other freq's available (40MHz). Was wondering if i could use Futaba or other brand crystals?
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Old 07-21-2007, 06:16 AM   #2008
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just picked up a C2... it was the last one in the lot so i had no choice in freq. unfortunately someone is already using that frequency where i race and the shop had no other freq's available (40MHz). Was wondering if i could use Futaba or other brand crystals?
sanwa / airtronics can be used
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Old 07-21-2007, 09:59 AM   #2009
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sanwa / airtronics can be used
thanks for the quick reply. just to be sure, you've tried this yourself without any problems? just making sure because everyone back here is saying i shouldn't mix and match crystal sets.
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Old 07-21-2007, 12:43 PM   #2010
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VoodooPH:

Hi,

Yes you can use Airtronics crystals in your Ko C2. I use them in my EX 10. also you can use Airtronis 27 band crystals.

Thanks
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