Hi
I have vr sensor and 2 triggers on crankshaft damper. Rpm is displayed on megatune if I remove these mods (but MS spark control doesn't work) :
.Remove D5,D8,R10
.Remove jumper between XG1-XG2
.Fit wire between XG1 and right of D5 (non band)
.Fit wire between bottom of R10 and small hole above D9 (this is a +5v source - you could also use the hole to the left of D4)
.Fit 1.3k resistor in place of D8 (1k-2k ok)
When I reinstall mods, rpm is 0 all the time. I troubleshooted yesterday and outcome of that was MS doesn't work at all anymore. Possibly a short circuit occurred. New processor etc should help...
But can anyone help me what to do with the HEI-install after the board is working again?
No rpm with 7pin hei board mods?
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Did you remove the original jumpers first? The HEI7 mods are known to work so there must be a wiring error somewhere.
James
James
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That will give an inverted input. I'd have thought if you figured that out then you'd be able to debug the original board?
What we are trying to achieve with the "HEI7" mod is same/similar as "alternative to schematic 2" over half way down:
http://megasquirt.sourceforge.net/extra/setup-msns.html
James
What we are trying to achieve with the "HEI7" mod is same/similar as "alternative to schematic 2" over half way down:
http://megasquirt.sourceforge.net/extra/setup-msns.html
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
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Just use the standard circuit.
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".