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Old 2002.08.12, 08:33 PM   #1
vince
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question about crystal???

are they suppose to be the same number on both crystals of the remote and car???
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Old 2002.08.12, 08:38 PM   #2
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Yes. Same number, 1-6 for legal US crystals. Also, they should have the same frequency number printed on the actual crystal. This will be like, 26.997 or something like that.
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Old 2002.08.12, 08:42 PM   #3
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i hve 2 cars a CLK and a S2000
the CLK with different number crystals, but it has no problem.
the S2000 with same number crystals, but out of control.
anyone can help me out???
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Old 2002.08.13, 12:28 AM   #4
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where'd you get them?

the numbers (1-6) on the crystals are sometimes confusing... as some crystals have the same numbers on them but have different frequency...

read the frequency (as russ mentioned) usually 26.xxx to 27.xxx and make sure the crystal in your controller (usually called the tx crystal - transmitter) has the same frequency as the crystal in your car (usually called the rx crystal - receiver)
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Old 2002.08.13, 10:43 AM   #5
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Also, try your CLK crystals in your S2000, maybe it's not the crystals that are the problem.
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Old 2002.08.13, 05:22 PM   #6
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i tried already!!! to switch around, but only one car worked!!!
so the frequency must be the same on the car and transmitter!!!
they different on my s2000
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Old 2002.08.14, 12:24 AM   #7
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vince...

don't panic... like i said there are two numbers on the crystals... usually 1 to 6 in the u.s. but outside the u.s. it's 1 to 12

the other set of numbers on the crystals are the crystal's frequency usually 26.xxx to 27.xxx (i.e. 26.995 or 27.095)

make sure that the frequencies of your crystals match... otherwise they won't work together...

tell us specifically what happened like where'd you get the crystals and other pertinent data or info so we can help you out better...
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Old 2002.08.14, 01:03 AM   #8
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my CLK has different number on the crystals, but same frequency!!! so this one is fine....
my S2000 has same number on the crystals, but different frequency!!! so this one is uncontrol....
i got both in Hong Kong, but i am in Canada!!!
so what can i do now???

thx anyways for all the replies!!!
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Old 2002.08.14, 01:34 AM   #9
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wow... i guess you should've checked them before buying...

can you give the number and frequency of both crystals? just fill out the table below

ex.

clk
tx crystal frequency / crystal no. =
rx crystal frequency / crystal no. =

s2000
tx crystal frequency / crystal no. =
rx crystal frequency / crystal no. =

note: tx crystal - the one in the controller
rx crystal - the one that goes in the car

i'm thinking - one tx crystal can control both rx crystals if they are the same frequency... otherwise i guess you'll have to buy a new set of crystals... but why bother... you can only drive one car at a time right?

that's if you're not giving the other car to your brother or friend to play around with...

Last edited by herman; 2002.08.14 at 01:37 AM.
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Old 2002.08.14, 02:06 AM   #10
Crash Rehven
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my Mini-z and my friend's both are from Hong Kong.

My frequency is 26.995 (TX Band 1 and RX Band 2)
My friends is Tx Band 5 and Rx Band 10 (I forgot the Frequency, but it's the same on both crystals...)

In the U.S. the Band numbers are the same on both the Tx and the Rx

it sounds like to me that whoever sold you the S2000 gave you the wrong crystal.
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Old 2002.08.14, 09:31 AM   #11
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The RX and TX xtals ARE different... if you have two RX xtals in the car and transmitter or two TX xtals... it may or may not operate properly... they are often a hair different in the frequency
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Old 2002.08.16, 09:58 PM   #12
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My concern is that the mismatched crystals imply that you bought an open item, was it advertised as such?
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Old 2002.08.19, 01:39 PM   #13
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i tried looking in the history for switching controllers to another R/C car, but i couldn't find it.

well i am new to this but i was wondering if the mini-z remote controller can be switch to another RC car i.e. mini rs4???

thanks!
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Old 2002.08.19, 02:21 PM   #14
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yes.. the Tx that came with the mini-z works with practically any 27MHz AM Rx.
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Old 2002.08.19, 11:17 PM   #15
MalaYsianSpeedy
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Quote:
Originally posted by W-tone
yes.. the Tx that came with the mini-z works with practically any 27MHz AM Rx.
thank you!!
27MHz??? would the mini hpi be a 27mhz?? or does it depend cars to cars?


edit: sorry if it is a lame question, i am new to R/C
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