6 Apr
2015
6 Apr
'15
11:20 p.m.
Hello,
apart from the transistors, I would check for some bad capacitor.
The analog part with the sensors needs quite clean supply to work good,
while the motor itself is a big source of spikes and pulses.
Possibly there could be some supply filter, with electrolytic capacitors
not working as expected due to age... or with excessive current leakage.
Andrea
7 Apr
7 Apr
12:37 p.m.
Thanks Andrea. This is always something to look out for. However, in this
case, looking at the XT-1140 schematic that was posted earlier in this
thread, there do not seem to be any capacitors in this area.
I have ordered some replacement transistors and I will try them on another
drive first.
Regards
Rob
On 7 April 2015 at 07:20, shadoooo <shadoooo at gmail.com> wrote:
Hello,
apart from the transistors, I would check for some bad capacitor.
The analog part with the sensors needs quite clean supply to work good,
while the motor itself is a big source of spikes and pulses.
Possibly there could be some supply filter, with electrolytic capacitors
not working as expected due to age... or with excessive current leakage.
Andrea
3548
days inactive
3548
days old
1 comments
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robert.jarratt＠ntlworld.com -
shadoooo＠gmail.com