Chapter 6 Maintenance and Inspection
93
6.3 Troubleshooting
If the VDR malfunctions, troubleshoot it according to the following list. Read the cause and take
the actions recommended on the list.
If the malfunction persists or there is a problem not listed below, contact the Sales Department,
the nearest branch company, branch office, sales office, or any agent of Japan Radio Co., Ltd.
Trouble symptom Cause Actions to take
The MCB's LED (SYS. or
REC.) does not turn on.
The RCU's POWER switch
does not turning on.
Turn on the RCU's POWER
switch.
The AC-line fuse is blowing
out.
After stopping the power
supply to the RCU, check the
PSU's AC-line fuse. If the
AC-line fuse is blowing out,
replace with the spare fuse.
The power supply is not
supplied from the switchboard.
Check the switchboard.
The PSU is breaking down. Contact your sales
representative, our sales
department, nearest branch
office or sales office.
The OPU's screen is not
displayed.
The OPU's screen brightness
is becoming low.
Adjust the screen brightness
by the rotary knob.
The life of OPU's LCD is
approaching.
Check the OPU's operating
time. See “4.6.4 Checking the
replacement parts”.
If the OPU's operating time is
over 50,000 hours, it is
necessary to replace the OPU.
Contact your sales
representative, our sales
department, nearest branch
office or sales office.
The power supply is not
supplied to the OPU.
1) Check the LAN cable
2) Reboot the RCU.
The OPU can't operate. The function of rotary knob is
becoming the operation mode.
Push the HOME button in the
OPU.
The rotary knob is breaking
out.
It is necessary to replace the
OPU. Contact your sales
representative, our sales
department, nearest branch
office or sales office.
To Next Page
Loading...
