Heng Long module TK-7.0

Buzzbomb · Post by **Buzzbomb** » Fri Dec 17, 2021 5:36 pm

Yes, I believe we are on the same page. The second relay is basically just a "delay" on the CN6 trigger. There's probably some other piece of electrical equipment that could accomplish a delay easier, im just not aware of it.

Jofaur86 · Post by **Jofaur86** » Fri Dec 17, 2021 6:29 pm

yes, but I find that already a good solution

I adore these small techniques, which allow to divert certain lacks, I have a friend, who has added a recoil by servo on a Sherman Tamiya, with a system a can comparable, and it works, have a good weekend

Buzzbomb · Post by **Buzzbomb** » Mon Dec 27, 2021 3:14 pm

Update. To retain IR battle function, you need to splice the original green "trigger" wire from the turret into the + side of CN6. Didnt figure this out until after Xmas and had all the tanks going.

Edit** spelling

Jofaur86 · Post by **Jofaur86** » Sat Jul 23, 2022 7:57 pm

Good evening,

see this post, some explanations
viewtopic.php?f=79&t=32140

cheselpm · Post by **cheselpm** » Sat Oct 15, 2022 5:28 pm

marderracer wrote: ↑Tue Oct 26, 2021 12:21 am The sound has stopped working on my Heng Long T90 which has the TK 7.0 board. I've tried everything to get it working again. Has anyone got any ideas? Thanks

I did blow my speaker on my TK 7.0 T90..new speaker all ok now..Watch the volume

cheselpm · Post by **cheselpm** » Thu Dec 01, 2022 1:06 pm

L9 second machine gun is automatically enabled when it detects an LED on the output.
however on mine i had to add a second LED in parallel with the MG for the port to recognise MG.

cmdrcody · Post by **cmdrcody** » Thu Dec 22, 2022 1:19 am

The HL TK-7.0 board has been well known for blowing out the OEM speaker if run on full volume for an extended time. It happened to me! I replaced the OEM speaker with two MakerHawk speakers I purchased on Amazon. I wired them in series, cut the two mounting tabs off, hot glued right next to each to the bottom of the tank body right in front of the motors. They have a very low profile so there was no issue with the turret it's wiring making any contact with the speakers. They are louder than the OEM speaker.

Post by **HERMAN BIX** » Thu Dec 22, 2022 10:48 am

Thats a great looking solution mate. Mine too blew the speaker, out of the box after 10 only minutes.............

haulme · Post by **haulme** » Thu Dec 22, 2022 11:46 am

Here is another solution:

When I got my challenger it sounded awful...the sound was really distorted and boomy.

I managed to get a Visaton FRS7 8ohm of Amazon for £6

and a Junction box from Screwfix which fitted the speaker perfectly for £1.79

A bit of soldering and I get this. The nice thing is the cutouts give a nice hole for some air to vent and the speaker fits very snug.

Excuse the messy wiring it was WIP but neatened now:

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Heng Long module TK-7.0

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