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Repairing a Jetcat ECU

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Repairing a Jetcat ECU

Old 11-13-2017, 12:00 AM
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Originally Posted by stringchi

the one you blew up is almost 100% capacitor.
some of the ECU,s V10 dont like the high voltage.
most of the time it will freeze the serial bus , and reports : no fuelpump connected.
the capacitors are very close to the max voltage running when using 3S packs (life or lipo or Lion).
remove the burned part , buy a higher voltage capacitor external and solder it in place the external one will fit between the pcb,s.
Old 11-13-2017, 12:05 AM
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here you go , this is how i repaired mine
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Old 11-13-2017, 05:58 AM
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Ok cool..so its not a protective diode but a 16V 33uf cap..Thanks for sharing Digitech Seems like a 25V 33uf will do the trick but I strongly suggest using the recommend voltage for this ecu.
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Old 11-13-2017, 11:06 AM
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Originally Posted by basimpsn
Ok cool..so its not a protective diode but a 16V 33uf cap..Thanks for sharing Digitech Seems like a 25V 33uf will do the trick but I strongly suggest using the recommend voltage for this ecu.

well the problem was they do allow 3S life batterys , you can set this in the menu , however my hardware disagreed and smoked away...
its now fixed..
Old 05-26-2018, 05:05 PM
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hey guys which board controls the gas balve and fuel valve on a jetcat v6 ecu?
Old 05-10-2019, 02:09 AM
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Originally Posted by coolt5
Hi all

i have the same ecu 5.0v and i was trying to start my engine when i notice a smok coming from the ECU so i take it a part and notice the no1 in the Picture was burn so i take it to my frinde to check it for me and he ask me to git another one so he can replace it . also hey find the no2 in Picture its short also. hey ask me to replace it too.

is that mine it have to do somthing togither .
also what is the part no for no1 in Picture .
and from wher i can order them pls.


thanks in advans
SAM
Did we ever find the numbers for these items? 4463B is fine but what about the transistor( I think) The others are N Channels FETs, i get that.

Last edited by vankie; 05-10-2019 at 02:10 AM. Reason: Add information
Old 05-10-2019, 02:10 AM
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my problem is within a version 6 system. it did not work on a 3Cell lipo...
Old 02-10-2021, 04:07 AM
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The pulse width applied to the gate controls the amount of conduction between the Source and Drain. the source and drain turn on separate MOSFETS to control speed of the turbine start motor and the ceramic igniter. The greater the duty cycle the faster the motor turns on and the igniter glows red like a stove top and ignites the kerosene!

The 4463 P channel MOSFET will overload and burn out if to many start attempts are made back to back. The data sheet for this chip, shows the duty cycle limits. Think about it, the ECU has to supply high current demands by the start motor and the Kerostart plug. A heat sink should have been placed atop that 4463B.

Last edited by ledd4u; 02-10-2021 at 09:22 PM.
Old 05-24-2024, 06:00 AM
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Originally Posted by voaferro
Hi from portugal (i´ve been there, done that). the small burned thing is a regulator (type ams1117-?) they come in various voltages the one i changed was a fixed 5v one. It provides the power for the esc itself (i think it´s also the bec part). I tried one i took from a used Main board from a pc (busted but modern).
sorry to bring back an old thread but im trying to help a friend repair the same problem
is the burned component a 5V reg or is it a 456 transistor?

the problem is his really caught fire and burnt the tracks.
any chance anyone can tellme where toconnect the tracks of the regulator?
thanks.



Last edited by i3dm; 05-24-2024 at 06:16 AM.
Old 05-24-2024, 08:49 AM
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Must be a board way before 5.0. None of mine have that component. Mine are ver 5, 6. Sorry.
Old 05-24-2024, 08:54 AM
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The one in my. Pic is V5.0

As you see it does have that component.
Just curious what it is.
Old 05-24-2024, 09:00 AM
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Very odd. I have both and have repaired many. Never seen that particular model.


Last edited by ledd4u; 05-24-2024 at 11:32 AM.
Old 05-24-2024, 09:05 AM
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Flip it over and let me take a look at the back. It may not have the 3 mosfet package. Its what i described above. Very difficult to verify without schematics.
Old 05-25-2024, 03:30 AM
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Dont apologise about using old thread this is where you should post so information is kept together,
on this subject did you look at/read the posts/pictures above, I have posted ones so have others, there are also some circuit diagrams,
from what I can see your board seems to be a v4, the v5 pics posted dosnt have that component on bottom left, which I think is a 5v reg but not sure.

Last edited by Xairflyer; 05-25-2024 at 03:33 AM.
Old 05-26-2024, 08:13 AM
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Xairflyer Good to see you are still around.

Regards
Mike
Old 05-26-2024, 02:44 PM
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Originally Posted by BaldEagel
Xairflyer Good to see you are still around.

Regards
Mike
Yes still here just not been posting much, but still get notifications of the old threads
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Old 05-27-2024, 02:04 AM
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Same here, according to stats I have not posted since August 2023, other priorities in life taken over.

Keep well
Mike

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