Lumens Technology CT-C50 - Manual (Page 19)

17
Chapter 9 Troubleshooting
No. Problems Solutions
1 No display on
OSD Timer LED
panel and no
response to
operation
There are two batteries in the OSD Timer. When OSD
displays < 2.8 V, they needs to be replaced. Please use
two AA carbon-zinc batteries.
2 Abnormal
voltage caused
outage of
charging cart
AC IN / AC OUT are installed with the overload
protection and the external AC breaker respectively to
automatically turn the power off to protect the machine
when the flow of electrical current is abnormal. Press
the switch again to restart the power.