Megasquirt Stimulator V1

Parts Listing

part					description
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CLT						10k pot, black body
IAT						10k pot, black body
O2						10k pot, black body
TPS						10k pot, black body
RPM						1M pot, green body
C1						0.01 or 0.012 cap
C3						0.33 cap
C4						0.01 or 0.012 cap
R1						330 ohm res, 1/8W,  orange orange brown
R2						33k ohm res, 1/8W, orange orange orange
R3						1.0k ohm res, 1/8W, brown black red
R4						1.3k ohm res, 1/4 W, brown orange red
R5						330 ohm res, 1/8W,  orange orange brown
R6						330 ohm res, 1/8W,  orange orange brown
R7						330 ohm res, 1/8W,  orange orange brown
IC1						LM555CN timer IC
D1						red LED, fuel pump circuit indicator
D2						red LED, injector circuit 2 indicator
D3						red LED, injector circuit 1 indicator
D4						red LED, fast idle circuit indicator
F37						female DB37 connector
9V battery holder
9V battery clip


Assembly Notes :
1. install LED's with flats facing the labels INJ1, INJ2, etc.
2. Connection directly to the MS can be made by removing the faceplate
   on the DB37 connector.  Otherwise, use an appropriate cable.
3. The 9V battery (not included) powers the Megasquirt which returns 5V power 
   to the stimulator.  Use the double sided tape to attach the battery clip to
   the PCB. The stimulator will not operate independently so there is no need
   to disconnect the battery after each session to avoid discharge.
4. The RPM circuit is tuned to give good resolution in the low rpm range.
   It is very sensitive for rpm > 3000 but will run to approximately 18k rpm when
   the MS is configured for an eight cylinder engine.