[john123]

can anyone shed some light on my problem? i have a r201 bike and the display doesnt light up anymore. do i need a battery or is it something else??

[atpands]

Is it a Trimline R201 recumbent bike? Is there an AC adapter plug in for a wall outlet? If this is plugged in, then you need to check for proper voltage from the wall using a voltmeter, which should be about 120 volts. If you have proper voltage, then you need to verify that the AC adapter is connected properly and that the line hasn't been cut or something. After that, you should verify all connections. Start with the connections at the display. If that doesn't fix the problem, then you need to open the lower shrouding to verify the connections down there. After that, it gets down to verifying proper voltages going to the display via the display cable. If you have recently moved the bike, you could have jostled something loose. I don't think this is a self-powered (battery)bike.