Masseuse Ultimate Chiro - Troubleshooting: Foot Roller Abnormalities - Further Checks; Wire Disconnection Check for Foot Rollers; Foot Roller Main PCB Board Check

2. Wires disconnect
The connecting wire from mother board to motor may disconnect or coil open, makes the voltage DC24V could not pass from mother
board to motor. Picture 26, please check if it is well connected of the connecting wire CON31 from mother board to foot motor connector.
If the wire connecter is correct with electricity current, please check the mother board
3. Main PCB board defect
Picture 26 or 27, test the paster field-effect tube IRF3607 first, then driver PMD2001D and fast recover SF56 to see if these components
are defected. Check if there is output from mother board, if yes, the problem should be the circuit. If there is no output from mother board,
it should be the chips or the testing circuit fault, then change the mother board.
Picture 27 foot roller motor driver circuit
Chip SMT132F103 signal
control
Driver audion S8050
Driver output pin
DC12V
paster field-effect tube
IRF3607
Motor DC24V driver
power
Driver PMD2001D