R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Thread Tools Search this Thread
Old 11-27-2004, 11:29 AM   #1
Tech Apprentice
Join Date: Jul 2003
Posts: 93
Trader Rating: 1 (100%+)
Default Strange GT7 issue

This one has me stumped. Have a GT7 hooked up to a JRRS300 receiver (one that comes w/ the JrXS3). Been running this combo fine for months, today in mid lap, car dies. Take it back home, no lights on the GT7, switch batteries, etc, still no lights. Unplugged the GT7 from the receiver and voila, lights on the GT7, but no "chirping" on the motor when turned on. Anytime I plug it back into the receiver all the lights go out again. Unfortunately I don't have any extra receivers/escs around here to test with. Any guesses on which piece is failing? GT7 or receiver?

Anyone ever seen anything like this before?


zxracing is offline   Reply With Quote
Old 11-27-2004, 12:29 PM   #2
Tech Elite
Turbo Joe's Avatar
Join Date: Nov 2003
Location: Corona, CA
Posts: 4,878
Trader Rating: 41 (100%+)

Mine just started acting stupid the other night. It shut off a few laps into a race for no reason, then came back on.

Getting ready for the next heat, I turned it on and it shut right off again...anyways...long, painful story short...one of the switch wires broke off the board inside. Fixed it (tied a knot inside for a strain relief) and it's good as "new" (to me...bought it used).

That and the reciever lead would be the prime suspects.
Turbo Joe is offline   Reply With Quote
Old 11-27-2004, 05:02 PM   #3
Tech Master
Speedie's Avatar
Join Date: Feb 2003
Location: Wisconsin
Posts: 1,844

I had the same trouble one time. It was a bad crystal. Unfortunately I sent in my reciever for repair and waited 2 months getting it back just to find that out.
www.victoryhobbies.com Greenbay, Wisconsin
Speedie is offline   Reply With Quote
Old 11-27-2004, 06:35 PM   #4
Tech Elite
Join Date: Nov 2002
Location: CORONA , CALIF.
Posts: 4,054
Trader Rating: 1 (100%+)

you should try cleaning out your reciever . sounds like theres small rocks in it around the pins . causing a short ...
Mark Barden .
mb racer is offline   Reply With Quote
Old 12-13-2004, 10:48 AM   #5
Tech Adept
Join Date: Jul 2002
Location: Notre Dame Baby!
Posts: 180

Unless the rocks are made of metal it will not cause a short, it sounds like the ESC is bad.
VONEREFLEXR is offline   Reply With Quote
Old 12-13-2004, 11:07 AM   #6
Tech Elite
dr_hfuhuhurr's Avatar
Join Date: Aug 2003
Location: Westchester, NY
Posts: 4,502
Trader Rating: 75 (100%+)

Most Novak speedo's I've owned have some sort of customer service logic built right in. After so long of working, they will just stop. You send it in for repair (replacement) and many $$ later, it starts working again.

I hear the next generation Novak ESC's will have $ bill changers that after so many runs you'll feed $60 into it and it will work again
"There is a fine line between hobby and mental illness. Which side are you on?"

“Life is hard; it's harder if you're stupid.” - John Wayne
dr_hfuhuhurr is offline   Reply With Quote
Old 12-13-2004, 11:57 AM   #7
The Evicerator
R/C Tech Elite Subscriber
Join Date: Sep 2001
Location: Irvine, CA
Posts: 4,142


I would check your input harness wires to make sure that they are not shorted together... make sure they are not nicked or cut or anything... If something looks questionable, I would replace that input harness.
Steve Weiss
Steve Weiss is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Strange Speedo Issue UltegraSTI Radio and Electronics 1 03-09-2008 07:26 AM
Strange Spectrum issue K_King Electric On-Road 4 03-06-2007 10:45 PM
I have a really strange question. Snikkari Electric On-Road 38 05-07-2005 08:21 PM
Strange car!!!! Kevin K Electric On-Road 60 11-26-2004 05:39 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 01:08 AM.

Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net