Hi,
Newbie here
I've just bought a treadmill, a Reebok I-run ,
which , as soon as the counter counts down (3 seconds) , the treadmill speeds up to full speed !
The display shows that the speed buttons are working by going up in increments
and the start and stop buttons work fine...
But the speed is constantly, full on !
There's no speed sensor on the belt pulley,
and here is a closeup of the board..
In the above picture the things behind the blue capacitor, are linear voltage regulators
L7812CV (12volts , 1.5 amps)
and a L7808CV (8 volts, 1.5amps)
*** There's lots more pictures, from all angles, showing the components, at
*** http://s103.photobucket.com/user/liammcl_2006/library/TreadMill?sort=3&page=1
***
and the NTC-3D-20 thermistor, gets really hot, within a few seconds.
(please ignore the yellow, orange, red , black wires...
I had a spare bridge rectifier,so I replaced the original KBPC1510 ..It made no difference)
Could it be these shorting out? (there is a heat-sink attached to them,
normally)
Does anyone know what's in the big black box?
and here is the reverse side..
I'm a kinda newbie to electronics... but I'm reading up , as we go...
Any pointers would be gratefully received..
All the best
Liam
Newbie here
I've just bought a treadmill, a Reebok I-run ,
which , as soon as the counter counts down (3 seconds) , the treadmill speeds up to full speed !
The display shows that the speed buttons are working by going up in increments
and the start and stop buttons work fine...
But the speed is constantly, full on !
There's no speed sensor on the belt pulley,
and here is a closeup of the board..
In the above picture the things behind the blue capacitor, are linear voltage regulators
L7812CV (12volts , 1.5 amps)
and a L7808CV (8 volts, 1.5amps)
*** There's lots more pictures, from all angles, showing the components, at
*** http://s103.photobucket.com/user/liammcl_2006/library/TreadMill?sort=3&page=1
***
and the NTC-3D-20 thermistor, gets really hot, within a few seconds.
(please ignore the yellow, orange, red , black wires...
I had a spare bridge rectifier,so I replaced the original KBPC1510 ..It made no difference)
Could it be these shorting out? (there is a heat-sink attached to them,
Does anyone know what's in the big black box?
and here is the reverse side..
I'm a kinda newbie to electronics... but I'm reading up , as we go...
Any pointers would be gratefully received..
All the best
Liam