MSefi.com read only forum (Jan.15,2018)

Hi,

This is my first post so please be gentle ..
My problem is I have a Megasquirt v3 board and 40 pin MS-II daughterboard waiting to be attached to it, but the section to which the daughterboard (DB) attaches is gone and so are the DB's legs, so I guess I will have to solder the contacts direct to the board maybe from the top of the DB or with wires from underneath perhaps. I can see some of the connections from underneath so could solder a wire between some of the more obvious connections, but not all of them unfortunately.
What I really need then is a layout of which DB pin connects to where so I attach it properly, is this available please ?

Thx in advance

So far this is what I have worked out -

Pin Component (position)


Pin 1 L1 (L)
Pin 3 C21 (T)
Pin 4 R22 (L)
Pin 5 R23 (T)
Pin 6 JS6 ?
Pin 7 R26 (T)
Pin 8 R29 (T)
Pin 9 R27 (T)
Pin 10 ?
Pin 11 ?
Pin 12 Pin 11 of RS232 chip
Pin 13 Pin 12 of Rs232 chip
Pin 14 TSEL ?
Pin 15 R1 (B)
Pin 16 ?
Pin 17 ?
Pin 18 ?
Pin 19 R11 (L)
Pin 20 C1 (L)
Pin 21 R14 (R)
Pin 22 R17 (R)
Pin 23 C2 (L)
Pin 24 R5 (L)
Pin 25 R8 (L)
Pin 26 R9 (L)
Pin 27 ?
Pin 28 R10 (L)
Pin 29 ?
Pin 30 ?
Pin 31 ?
Pin 32 C13 (L)
Pin 33 R16 (B)
Pin 34 R19 (B)
Pin 35 ?
Pin 36 ?
Pin 37 ?
Pin 38 ?
Pin 39 ?
Pin 40 ?

If anyone can offer any suggestions as to the others, as I may have issues with the circuit tracks, I'd be grateful.

Just order some replacement pin sets from Digikey. They're part number ED7764-ND.

Unless the pin holes for the processor in the board are ruined, you'll probably want the socket too - AE10018-ND.