SPORTS ART C51R, Repair Manual

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C51R/C51U Bike Repair Manual (Electronics) - Troubleshooting
Troubleshooting
Order Part Troubleshooting
1 Power Plug
1.Inspect the connection of the power cord to the bike and wall socket. Inspect wall
socket voltage.
2
Fuse and
Fuse Holder
1.Inspect the fuse holder and spring. Inspect the fuse.
2.Put in a good fuse and test for power past the fuse. If there is no power there, replace
the fuse holder.
3
On/Off
Switch
1.When the on/off Switch is set to “1”, the switch should light. If there is power to the
switch but none out of it, inspect wire connections. If connections are good, replace the
switch.
4 CN1 1.Inspect the main power cable connection (CN1) at drive board. See 5-2-3.
5 Transformer 1.Inspect transformer wire connection (CN2) at the drive board.
2.Inspect the transformer input and output voltages. See 6-1-4.
6 Drive Board 1.Inspect drive board LEDS: LED1 and LED2 light when there is power to the board.
See 6-1-6.
7 Data Cable
1.Inspect the data cable connection (CN3) at the drive board. See 5-2-3.
2.Inspect whether the data cable is pinched or crimped.
3.Inspect the data cable connection at the display.
8
Display
Board
1.Test for power at the display. See 6-1-7 and 6-1-8.
2.Press down on the program IC (U1) on the display. See 6-2-4.
6-1-3