3LikesMUGEN SEIKI MRX5
05-02-2011, 04:03 AM
#2056
Tech Regular
Hi there,
I just wanted to share with you what I learned about my "glitch problem" this weekend:
Changed the Rx unit in the car and the power leads. Ran the car for 20 sec. and it glitched again. Bummer!
Then I changed the transmitter setting "HRS Mode" to "PPM Mode" in my Futaba 3PK with 2.4 Ghz module and ran the car three days at a national event without any issues.
Don't know why, but my problem was HRS mode which worked with the same servos for years without issues before...
Looking now for a new Tx/Rx combo because there must be something wrong. With PPM mode I have also lost the failsafe functionality...
I just wanted to share with you what I learned about my "glitch problem" this weekend:
Changed the Rx unit in the car and the power leads. Ran the car for 20 sec. and it glitched again. Bummer!
Then I changed the transmitter setting "HRS Mode" to "PPM Mode" in my Futaba 3PK with 2.4 Ghz module and ran the car three days at a national event without any issues.
Don't know why, but my problem was HRS mode which worked with the same servos for years without issues before...
Looking now for a new Tx/Rx combo because there must be something wrong. With PPM mode I have also lost the failsafe functionality...
05-02-2011, 04:12 AM
#2057
Hi there,
I just wanted to share with you what I learned about my "glitch problem" this weekend:
Changed the Rx unit in the car and the power leads. Ran the car for 20 sec. and it glitched again. Bummer!
Then I changed the transmitter setting "HRS Mode" to "PPM Mode" in my Futaba 3PK with 2.4 Ghz module and ran the car three days at a national event without any issues.
Don't know why, but my problem was HRS mode which worked with the same servos for years without issues before...
Looking now for a new Tx/Rx combo because there must be something wrong. With PPM mode I have also lost the failsafe functionality...
I just wanted to share with you what I learned about my "glitch problem" this weekend:
Changed the Rx unit in the car and the power leads. Ran the car for 20 sec. and it glitched again. Bummer!
Then I changed the transmitter setting "HRS Mode" to "PPM Mode" in my Futaba 3PK with 2.4 Ghz module and ran the car three days at a national event without any issues.
Don't know why, but my problem was HRS mode which worked with the same servos for years without issues before...
Looking now for a new Tx/Rx combo because there must be something wrong. With PPM mode I have also lost the failsafe functionality...
05-02-2011, 05:07 AM
#2058
Tech Regular
Ralph,
sounds like we have tracked the issue down. The faster transmission mode seems to give us problems, but this was definately not the case when I had my radio equipment in the MRX-4. As I said, I had it on HRS for years...
Interesting to hear that your M11x shows the same kind of behaviour. I am actually considering to swap my Futaba for the M11 because I like the hand feel of the Tx and the rx unit is really small. Your report makes me think twice...
To me it is clear now that in HRS mode the failsafe circuit "senses" something that it does not like (could be voltage below/over a certain threshold or digital radio signal corrupted) and shuts operation briefly down. After a second or so it comes back alive and the car continues to run normally for a while...
Best regards, Stefan
sounds like we have tracked the issue down. The faster transmission mode seems to give us problems, but this was definately not the case when I had my radio equipment in the MRX-4. As I said, I had it on HRS for years...
Interesting to hear that your M11x shows the same kind of behaviour. I am actually considering to swap my Futaba for the M11 because I like the hand feel of the Tx and the rx unit is really small. Your report makes me think twice...
To me it is clear now that in HRS mode the failsafe circuit "senses" something that it does not like (could be voltage below/over a certain threshold or digital radio signal corrupted) and shuts operation briefly down. After a second or so it comes back alive and the car continues to run normally for a while...
Best regards, Stefan
05-02-2011, 05:59 AM
#2059
and it's currently out of stock in my country. Does anyone know the cheapest place I can get a kit and have it delivered to South Korea? If anyone knows any places that does international shipping, that would be great. Thanks in advance! 
I give you the best way to save your money and solve the future problems like as stock issues.
Can u contact RC-Force which is korean hobby shop in South Korea?
www.rc-force.com
U can save the shipping charge and get more service because RC-Force has a branch in USA.
I am a member of RC-Force club in USA.
I got MRX-5, spare parts from RC-Force.
If you want to get more information then contact RC-Force.
Good Luck..!!
05-02-2011, 07:49 AM
#2061
Tech Regular
Ralph,
sounds like we have tracked the issue down. The faster transmission mode seems to give us problems, but this was definately not the case when I had my radio equipment in the MRX-4. As I said, I had it on HRS for years...
Interesting to hear that your M11x shows the same kind of behaviour. I am actually considering to swap my Futaba for the M11 because I like the hand feel of the Tx and the rx unit is really small. Your report makes me think twice...
To me it is clear now that in HRS mode the failsafe circuit "senses" something that it does not like (could be voltage below/over a certain threshold or digital radio signal corrupted) and shuts operation briefly down. After a second or so it comes back alive and the car continues to run normally for a while...
Best regards, Stefan
sounds like we have tracked the issue down. The faster transmission mode seems to give us problems, but this was definately not the case when I had my radio equipment in the MRX-4. As I said, I had it on HRS for years...
Interesting to hear that your M11x shows the same kind of behaviour. I am actually considering to swap my Futaba for the M11 because I like the hand feel of the Tx and the rx unit is really small. Your report makes me think twice...
To me it is clear now that in HRS mode the failsafe circuit "senses" something that it does not like (could be voltage below/over a certain threshold or digital radio signal corrupted) and shuts operation briefly down. After a second or so it comes back alive and the car continues to run normally for a while...
Best regards, Stefan
05-02-2011, 10:20 AM
#2063
Tech Adept
Sanwa SDX-801 low profile can be used for gas / brake
spec
Manipulating speed 0.05s/40 ° - 6.0V
Manipulating Energy 6.4kg * cm 6.0V
spec
Manipulating speed 0.05s/40 ° - 6.0V
Manipulating Energy 6.4kg * cm 6.0V
05-02-2011, 04:29 PM
#2064
Ralph,
sounds like we have tracked the issue down. The faster transmission mode seems to give us problems, but this was definately not the case when I had my radio equipment in the MRX-4. As I said, I had it on HRS for years...
Interesting to hear that your M11x shows the same kind of behaviour. I am actually considering to swap my Futaba for the M11 because I like the hand feel of the Tx and the rx unit is really small. Your report makes me think twice...
To me it is clear now that in HRS mode the failsafe circuit "senses" something that it does not like (could be voltage below/over a certain threshold or digital radio signal corrupted) and shuts operation briefly down. After a second or so it comes back alive and the car continues to run normally for a while...
Best regards, Stefan
sounds like we have tracked the issue down. The faster transmission mode seems to give us problems, but this was definately not the case when I had my radio equipment in the MRX-4. As I said, I had it on HRS for years...
Interesting to hear that your M11x shows the same kind of behaviour. I am actually considering to swap my Futaba for the M11 because I like the hand feel of the Tx and the rx unit is really small. Your report makes me think twice...
To me it is clear now that in HRS mode the failsafe circuit "senses" something that it does not like (could be voltage below/over a certain threshold or digital radio signal corrupted) and shuts operation briefly down. After a second or so it comes back alive and the car continues to run normally for a while...
Best regards, Stefan
05-02-2011, 04:37 PM
#2065
05-02-2011, 05:25 PM
#2066
Hey Fulcrum I was reading your post and I had a similar problem. I brought my 4X last year and specifically got digital servos so I could use HRS. After running the car for a few minutes the steering servo would stop working. The throttle servo would continue to work. Switched it to PPM and the problem went away. I run a 3PK with Futaba's FASST system.
So it's not specific to the car. It may have something to do with vibration, but it's working so I'm not fussin with it.
Oh and I had a steering servo glitch yesterday. Found the servo connector was coming loose!
So it's not specific to the car. It may have something to do with vibration, but it's working so I'm not fussin with it.
Oh and I had a steering servo glitch yesterday. Found the servo connector was coming loose!
05-02-2011, 07:49 PM
#2067
radios
hey fellas something i learned at the worlds from Sawamotto of Sanwa ....i'm not sure but havn't had issues since .....worth a try...I did see most of the Pro drivers using a heavy duty or home made power lead or the factory ones that KO and Sanwa give you with the radios in the kit....i heard the power loss of a lesser quality lead was causing the problems...
05-02-2011, 08:10 PM
#2068
hey fellas something i learned at the worlds from Sawamotto of Sanwa ....i'm not sure but havn't had issues since .....worth a try...I did see most of the Pro drivers using a heavy duty or home made power lead or the factory ones that KO and Sanwa give you with the radios in the kit....i heard the power loss of a lesser quality lead was causing the problems...
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