Jagtiger in need of a reboot

Discuss the good old Heng Long electronics here, whether its mods on them or anything else, it goes here!

Postby Hwal2605 » Sat Jul 30, 2022 6:17 pm

jagtiger 2c.jpg
jagtiger 1c.jpg
Hi,
Not a newbe, but I haven't posted for a while.

I bought a HL Jagtiger at an auction only to find it had no Transmitter when I got home. Despite searches, the transmitter did not turn up. Thinking that A new 7.0 Transmitter and Control board would do the trick, I invested in both from Aliexpress. Got them last week, and, naively thinking the upgrade would be fairly simple, I proceeded to take out the old board and install the new 7.0, silly me. I have no idea where the existing pin connectors go, despite looking at 7.0 diagrams. I don't even know the version of the old board, although it does have a cooling fan on top. Lastly, the internal wiring of the tank, on the turret area (OK, it doesn't actually have a turret), appears to have had some unwanted attention. But first things first, can anyone point in in the right direction to get the control board wired up. Some help and advice would be greatly appreciated.

best regards

Harry

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Postby Tiger6 » Sat Jul 30, 2022 7:00 pm

Before anyone here pipes up with a Taigen wiring diagram, I'll point out that judging by the gearboxes this is the old 'Heng Feng' (I think thats what they were branded as) JagdTiger.
Obvioulsy been upgraded at some point, can you take the cover off that existing board and upload a picture of it, as this might help somebody figure out what you are dealing with?

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Postby Jofaur86 » Sat Jul 30, 2022 7:23 pm

Good evening,
Unless I'm mistaken? and in view of the photos, it is not a Heng Long? but a Matoro (see black pkastic engine covers) the plate in place RX 18 in 2.4Ghz could very well have been kept? just to buy the corresponding transmitter, new or used? there it will be necessary to take again the whole of the existing wiring, you must have besides the corresponding diagram, in principle?

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Postby Tiger6 » Sat Jul 30, 2022 7:53 pm

Jofaur86 wrote:Good evening,
Unless I'm mistaken? and in view of the photos, it is not a Heng Long? but a Matoro (see black pkastic engine covers)

The 'Heng Feng' JT used the old Matorro KT chassis and control boards. Similar to the old RX13 if memory serves, but with slighly different pins outs, the turret was a 10 pin connector and a few other oddities - The power switch cables had a nasty habit of catching fire :wtf: so hopefully they have been replaced!

I found this old thread showing the guts of it https://www.rcuniverse.com/forum/rc-tanks-369/10911040-jagdtiger-heng-feng.html?styleid=7 so we can safely conclude that whatever system is in there now is not original :crazy:

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Postby Jofaur86 » Sat Jul 30, 2022 8:06 pm

to follow up on Tiger's post, indeed an interior photo of the upper chassis would be appreciated, I think it's a BB system (airsfot) according to the can that is visible?

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Postby HERMAN BIX » Sat Jul 30, 2022 10:10 pm

Looks like a Taigen V1 to me
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Postby Jofaur86 » Sat Jul 30, 2022 11:26 pm

in view of the photo on RC Universe, looks more like a very old 27 Mhz HL radio system, on the left the control electronics, and on the right the receiver, without quartz, there were 3 possible frequencies, by manipulation of A 3-way switch, the one our friend is talking about, is indeed a Matoro or under the brand, with the famous 10-pin cord (photo attached, of a Sherman Mato, before modifications. Herman rightly, it is indeed a Taigen plate V3 currently.
Sherman Mato
06707949-C860-4B97-935C-6EC48E389D10.jpeg
06707949-C860-4B97-935C-6EC48E389D10.jpeg (45.84 KiB) Viewed 316 times
m
3DA84FCD-20BB-44E5-A548-D024F63EC90C.jpeg
3DA84FCD-20BB-44E5-A548-D024F63EC90C.jpeg (80.68 KiB) Viewed 316 times

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Postby HERMAN BIX » Sun Jul 31, 2022 12:10 am

Get. Taigen V3 board, sound card and transmitter from Forgebear and away you go!
The V1 will also work if you get a V1 transmitter and bind it .
Not sure if the old transmitter is still available new, so advise you to go for a V 3 system
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Postby Tiger6 » Sun Jul 31, 2022 12:16 am

The OP already has a brand new HL V7.0 to install... He just needs help figuring out the wiring.

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Postby john1970 » Sun Jul 31, 2022 12:36 am

what kind of wiring diagram do you have? is it a list which just says what connects where or is something like below

Image

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Postby Hwal2605 » Sun Jul 31, 2022 7:40 am

Hi Guys,
Thanks for all your comments and for taking the time to post them.

As "Tiger" says, I'm more interested in how to implement TK 7.0, if that is possible.

I already started, but I'm getting nowhere, to be honest. I'll get some pics of what I have done, pretty temporary, just to see if it worked. Don't laugh too much, I've spent around £130 on this baby to date. >:<

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Postby Hwal2605 » Sun Jul 31, 2022 9:29 am

Pics of disconnected old CB.

old 1.jpg
old 1.jpg (85.52 KiB) Viewed 279 times


old 2.jpg

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Postby Hwal2605 » Sun Jul 31, 2022 9:33 am

New setup and internals.
New 1.jpg


New 2.jpg


New 3.jpg


New 4.jpg


New 5.jpg
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Postby Jofaur86 » Sun Jul 31, 2022 10:04 am

Hello, personally, following the diagram attached by John 70,
first I would do the test, just by wiring the two propulsion motors, the On / Off switch, the battery, do not forget to "Binder the radio, with the plate" and see what that is happening ? already make this work :thumbup:
PS: to avoid any worries, put the tank on a wedge, so that the tracks turn in a vacuum, otherwise risk of falling when starting

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Postby Hwal2605 » Sun Jul 31, 2022 10:18 am

Hi Jofaur,
I've already got a Taigen Tiger 1, so I'm a bit familiar with tanks, not a newbe as such.

As wired, it doesn't work, no lights, no start-up on the transmitter, nada. I've wired the input leads to the on/off switch and the motor leads to M1 and M2. The CB has a 2 pin "Power" connector, according to the TK 7.0 wiring diagram I found on the net. I don't know where to wire this to? When I connect the battery and power on, there is 8v at the "Power" connector, but nothing on the other pins. How do I bind to the transmitter?

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Postby Jofaur86 » Sun Jul 31, 2022 11:02 am

here are two photos of the original Heng Long wiring, hoping to help?
Original HL
FD4BD551-A151-4B46-92A4-CEA4C6F4A5D4.jpeg
FD4BD551-A151-4B46-92A4-CEA4C6F4A5D4.jpeg (44.54 KiB) Viewed 270 times

couleurs des fils en correspondances avec la platine du châssis supérieur
[attachment=0]A84A2939-7745-492B-8E10-827FC90D94F6.jpeg
you notice that the elevation and air sfot motor have a common wire, which is no longer the case with the TK 7.O
Attachments
A84A2939-7745-492B-8E10-827FC90D94F6.jpeg
A84A2939-7745-492B-8E10-827FC90D94F6.jpeg (66.57 KiB) Viewed 270 times

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Postby Hwal2605 » Sun Jul 31, 2022 11:10 am

Thanks Jofaur,
It will take me a while to digest this.

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Postby Jofaur86 » Sun Jul 31, 2022 11:18 am

Hwal2605 wrote:Hi Jofaur,
I've already got a Taigen Tiger 1, so I'm a bit familiar with tanks, not a newbe as such.

As wired, it doesn't work, no lights, no start-up on the transmitter, nada. I've wired the input leads to the on/off switch and the motor leads to M1 and M2. The CB has a 2 pin "Power" connector, according to the TK 7.0 wiring diagram I found on the net. I don't know where to wire this to? When I connect the battery and power on, there is 8v at the "Power" connector, but nothing on the other pins. How do I bind to the transmitter?


:'( be careful, unlike the existing board, the battery connects directly to Input, and the M/A button to Power, I think you shouldn't use the original switch? or rewire it in two wires? as in the diagram, I do not doubt your knowledge? just try to explain!!!
also see this post
viewtopic.php?f=79&t=31479

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Postby john1970 » Sun Jul 31, 2022 2:21 pm

Stop before you set fire to the tank
disconnect everything you have attached. The tank needs a complete rewire the tk7 does not use the same connections as the taigen the 8 pin wire isn't used and it definitely doesn't plug into the led sockets connecting plus and minus terminals together.

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Postby Jofaur86 » Sun Jul 31, 2022 2:28 pm

john1970 wrote:Stop before you set fire to the tank
disconnect everything you have attached. The tank needs a complete rewire the tk7 does not use the same connections as the taigen the 8 pin wire isn't used and it definitely doesn't plug into the led sockets connecting plus and minus terminals together.

8O at no time did I say that the 8-pin plug had to be reconnected? just provides diagrams in order to find if in the principle of the wiring? that's all !!

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