I have a tmaxx 3.3 that has been in my closet for the past year.today I got it out today and started it and I can't control it.I put new batteries in the car and the remote but it's like the car is switched off.it does nothing help!!!!!!!!!!!!!
-
Welcome to RCTalk! 🚀
Join the #1 RC community where hobbyists connect, share, and get expert advice on RC cars, trucks, boats, drones, and more!
- ✓ Friendly & passionate RC enthusiasts
- ✓ RC tips & troubleshooting
- ✓ Buy, sell & trade RC gear
- ✓ Share builds & upgrades
Tmaxx trouble
- Thread starter jeff love
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.
links, including eBay, Amazon, and others.
- Messages
- 35,104
- Reaction score
- 1,854
- Points
- 2,198
- Location
- In my recliner
- RC Driving Style
- Bashing
- Flying
Check your connections from the battery box to the receiver and servos.
NEVER start an engine till you know your servos are working properly with your transmitter inputs.
NEVER start an engine till you know your servos are working properly with your transmitter inputs.
- Thread starter
- #3
I checked the wires and other than being a little smooshed where they come out of the box I can't see anything I put a volt meter on it and at the plug where it goes into the reciever it was reading 3.6 I don't know what it should read but that's what I get
Metalhead Matt
RCTalk VIP
That's way too low. You should be some where around 6 volts. The rx won't operate below 4.8 volts. Somethings wrong with the battery holder, switch or wiring. If you stay interested in your Maxx, the first upgrade you want to make is to a rechargeable, 5 cell nimh hump pack. The aa batteries lose power fast and deliver less current.
That's why you should learn to fix it yourself. It's not rocket science and lots of good help to be around here.
- Thread starter
- #7
I am learning I just put new gears in the tranny it's just alot of little parts and I have big hands so it's tough.I looked up a new reciever and a new crystal and battery box and to get all that it's cheaper than paying 2 hours labor and as far as I can tell it has to be one of those parts so if I have to I will replace them all
Wildstringer
RCTalk Qualifier
- Messages
- 143
- Reaction score
- 0
- Points
- 0
- RC Driving Style
- Bashing
- Racing
there may be nothing wrong with your receiver. if you insist on using normal batteries make sure they are new and a good name brand. I've gotten Walgreen batteries that wouldn't operate my digital camera right out of the pack. the other problem could be high resistance such as multiple wire strands cut but still enough to give you a reading. I would also find another hobby shop to deal with. If you ask them a question and they try and make you feel dumb for asking it go somewhere else if you can. i had a similar problem and MHM gave me the same advice the rechargeable battery will save you money as well in the long run
NitroArsenal
RCTalk Racer
I still use Duracell, each reading 1.5 volts, if your testing at the plug, good batteries should read near 6-volts. Because i use the duracell i will only run them if they are 5-6 volts, once they get lower they go into the xbox controller, or tv remote, rolex is right, you want to check all your radio/servo stuff before starting that engine or it will end up being a rabid maxx! 
NitroArsenal
RCTalk Racer
You said there were smushed wires....if the skin has broken on a wire and the wire is showing that could cause issue, i had this happen recently and put a new battery box on it, two of the wires had holes from being pinched, and i found that the t-maxx would not turn on at all unless i pulled the wires out by removing the battery box and seporating them, then it would come on fine, so that is a possibility.......
You check them batteries???
no matter the store, sometimes batteries can come almost out of date, thats something else you may want to check, even if they are brand new, they may have been around for a while, i would never put a battery in without checking it, i have bought batteries many times and have them half dead out of the package...it happens...just a thought..
You check them batteries???
no matter the store, sometimes batteries can come almost out of date, thats something else you may want to check, even if they are brand new, they may have been around for a while, i would never put a battery in without checking it, i have bought batteries many times and have them half dead out of the package...it happens...just a thought..
NitroArsenal
RCTalk Racer
You should be able to buy just the switch and wires if I'm correct, the box is more reusable, the switch should have a couple screws that remove the system, does the maxx just do nothing? Does it show any sign at all that it is trying? If we can see a more specific diagnostics of the situation, may be able to help more...
my bet is in the wires somewhere, only because i have had the issue, put the new batteries in, put that meter right at the batteries with them all in place, you should be able to test them where the two main wires are soldered to the battery holder, i would check it right at the batteries, then at the end of the wire at the plug, if you can test all the batteries together in the holster, avoiding the wire, then check it at the end of the wire, you should be able to tell if there is an issue...
my bet is in the wires somewhere, only because i have had the issue, put the new batteries in, put that meter right at the batteries with them all in place, you should be able to test them where the two main wires are soldered to the battery holder, i would check it right at the batteries, then at the end of the wire at the plug, if you can test all the batteries together in the holster, avoiding the wire, then check it at the end of the wire, you should be able to tell if there is an issue...
- Messages
- 35,104
- Reaction score
- 1,854
- Points
- 2,198
- Location
- In my recliner
- RC Driving Style
- Bashing
- Flying
After sitting for a while, the contacts for the batteries get corroded. It might be very slight, but it could be enough to create the loss you're seeing, even with new batts.
Replacing that box would be the first step.
Replacing that box would be the first step.
- Thread starter
- #15
I have pulled that box apart and took the receiver out and unpluged all the conections the one coming from the battery box had a little corrosion but I cleaned it up with a tooth brush and contact cleaner.It's crazy cause before I put it up I never had any trouble with the controls.It used to make noise and the front wheels would jump for a split second but now it is like I am not even turning it on
Oh yea and I own a 300.00 mac tools meter and not to sound stupid but I aint real sure what settings to check it on.I can get 1.63 from the batteries but I should be able to unplug the battery box and check it where it plugs in to the controler and turn the switch on and off and see exactly whats going on if I knew what to set the meter at
Oh yea and I own a 300.00 mac tools meter and not to sound stupid but I aint real sure what settings to check it on.I can get 1.63 from the batteries but I should be able to unplug the battery box and check it where it plugs in to the controler and turn the switch on and off and see exactly whats going on if I knew what to set the meter at
NitroArsenal
RCTalk Racer
Test the battery holster with the meter with the batteries in it, before the switch, where the batteries actually plug in, there should be a negative and positive that come out of the holster to the switch, i would check the volts there first, then turn it on and check at the end of the plug, that should tell if it is in the wires, even if you don't have the meter set right, there should be that difference if the issue lies there....
And you want to plug in at least one servo to test it after plugging in the batteries!
And you want to plug in at least one servo to test it after plugging in the batteries!
- Messages
- 35,104
- Reaction score
- 1,854
- Points
- 2,198
- Location
- In my recliner
- RC Driving Style
- Bashing
- Flying
WITHOUT batteries in, you can find the problem by checking the continuity of the connections.
Set the meter to OHMS. This is the symbol:
DO NOT check any battery power with the meter in this position.
Check the + to - connection for each battery compartment, then the + to - continuity from the compartment output to the receiver plug.
A good connection will either read zero or give you a beep tone. If you're not getting that, you've found a problem.
Set the meter to OHMS. This is the symbol:
DO NOT check any battery power with the meter in this position.
Check the + to - connection for each battery compartment, then the + to - continuity from the compartment output to the receiver plug.
A good connection will either read zero or give you a beep tone. If you're not getting that, you've found a problem.
- Thread starter
- #18
Well I read the manual on my meter and checked the wires going into the switch it read 6.43 and coming out of the switch it was 3.21 so I cut the wires and ran it strieght and wala it works perfect so I need to buy a switch.I ran it around the yard for about 3 minutes until those tiny screws came out of the spur gear so I geuss I will pick one of those up while I am there.Thank you guys for all the input
NitroArsenal
RCTalk Racer
Good to hear you figured out the problem! Quoting what you said about remembering why you put it in the closet, they can be a pain sometimes, but once you get a good hang of everything, and have dealt and solved all the different issues, it will be a smooth ride from there!
Metalhead Matt
RCTalk VIP
Use a little blue, removable locktite on any metal to metal connection.