Precor 9.31 - Page 56

9.31, 9.33, 9.35 Treadmill
Page 56
Block Diagram 7.2 - 9.31, 9.33, 9.35
UPCA
Keypad
LPCA
7.5 VDC
Power
Supply
AC
Lift
Switches
9.31-07, 9.33-07, 9.35-07 PWM Treadmill
120
VAC
20 amp
120
VAC
1K
Lift Position
150 Vdc
Power
Supply
Line
Filter
F1
2 amp
BR
J1-1
J1-4
J1-3
R
W BK
J8-1 J8-2
J8-3
Speed
Sensor
J3-1
J3-3
J3-4
R
R
W
BK
G
BK
R
BK
LPCA Light Emitting Diodes Desig Color Description
DS1 Red Lift Up DS3 Red 7.5 Vdc DS2 Green Lift Down
TX
RX
7.5V GND
J 6 - 3
J 6 - 6
J6-2,5,8
J 6 -
1 , 4 , 7
3
TX
RX
6
2 , 5 , 8
1,4,7
AC
Motor
DC
Motor
R
BK
BR
BR
BL BL
J5
J7
M4
M3
Stop Switch
J7
J4
J8
J9
Heart Rate
PCA
J4
BK
BK
R
R
J1-1
J1-2 J1-3 J1-4
Left Bottom Grip
Left Top Grip
Rigjt Top Grip
Right Bottom Grip
F3 1 amp
Fan
F2
0.2 amp
D Pad
J1
J10
Metrics
PCA
Flash Memory Upper
Only 9.35-07 Field Flashable