Sentec SDM - Page 71

4 Troubleshooting
SenTec Digital Monitoring System
65
Problem
Possible Cause(s)
Recommended action(s)
SMBM
(Motherboard)
defective
Replace SMBM according to the Repair
Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.
P0411
No sound
Auditory alarm
signals are PAUSED
or OFF
Reactivate auditory alarm signals (if
necessary)
Volume is on
minimum
Adjust the volume in the menu “Alarm
Settings”.
Speaker is defective
Verify that 3 beeps are audible during POST.
If problem persists contact qualified service
personnel.
SDM defective
Contact SenTec authorized service personnel.
Speaker not
connected
Connect Speaker according to the Repair
Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.
Speaker defective
Replace Speaker according to the Repair
Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.
SMBC (Controller
Board) defective
Replace SMBC according to the Repair Manual
for the SDMS .
To be performed by SenTec authorized
service technicians only.
SMBM
(Motherboard)
defective
Replace SMBM according to the Repair
Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.
P0412
AC Power Cord is
defective
Replace the AC Power Cord.
Power Entry
Module defective
Contact qualified service personnel.
Fuse Holder not
mounted correctly
Mount Fuse Holder correctly according to
section 5.4 “Replacement, main fuses” .
SDM defective
Contact SenTec authorized service personnel.