Test Points

TP2  
TP3  
TP4  
TP5 Power In (J5) No Connection
TP6 Power In (J5) Ground (Black)
TP7 Power In (J5) Floating (Red)
TP8 Power In (J5) +30V (White)
TP9 Impeller Motor Ground
TP10 Impeller Motor Ground

Connectors

J1 JTAG
J2 SPI
J3 Impeller Motor
J4 Drive Motor
J5 Power In

SPI (ISP / ISCP)

MISO 1 ■ ● 2 VCC
SCK 3 ● ● 4 MOSI
RST 5 ● ● 6 GND

AVR JTAG

TCK 1 ■ ● 2 GND
TDO 3 ● ● 4 VTG
TMS 5 ● ● 6 nSRST
VTG 7 ● ● 8 nTRST
TDI 9 ● ● 10 GND

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Integrated Circuits

U1 HC14AG Hex Schmitt-Trigger Inverter
U2 HC02AG Quad 2-Input NOR Gate
U3 ATmega16A 8-bit Microcontroller
U4 737MT Unknown 6-pin. Looks like a clock.
U5 GZSD625 Unknown 14-pin
U6 TS34063 DC to DC Converter Controller
U7 F XG15B Unknown 8-pin
U8 BTM7710G Quad D-MOS Switch Driver
U9 HC02AG Quad 2-Input NOR Gate
U10   Not Populated
U11 2545 33DE M53BM Unknown 16-pin
U14 R336 Unknown 3-pin

Transistors

Q3 3N10L26 N-channel 100V 35A Power Transistor
Q8 088N06N N-channel 60V 50A Power Transistor
Q9 088N06N N-channel 60V 50A Power Transistor
Q10 088N06N N-channel 60V 50A Power Transistor