4-8 
 
4.6.7 Output Interface Failures 
Symptoms   Possible Cause  Corrective Action 
Respective output 
disabled 
1. Select [Main Menu]→[Analog Output 
Setup]→set [Analog Output] to [On]. 
USB_Hub board cable 
loose 
1. Check that cable between USB_Hub 
board and mother board is properly 
connected. 
2. Check that connecting cables and 
connectors are not damaged. 
USB_Hub board failure  Replace the USB_Hub board. 
No analog signals or 
nurse call signals are 
issued  
Mother board failure  Replace the mother board. 
Cable defective or 
poorly connected 
1. Check that cable between USB_Hub 
board and mother board is properly 
connected. 
2. Check that connecting cables and 
connectors are not damaged. 
USB_Hub board failure  Replace the USB_Hub board. 
Device with USB port 
does not function 
(Assume that the 
peripheral devices are 
good) 
Mother board failure  Replace the mother board. 
 
4.6.8 CF Card Problems 
Symptoms   Possible Cause  Corrective Action 
Wrong CF card or small 
memory space 
Use only SanDisk-manufactured CF storage 
cards. Those with 1GB memory space are 
recommended. 
CF card full; data error; 
CF card error 
Format CF card on PC. 
CF card failure  Replace the CF card. 
Cable defective or 
poorly connected 
1. Check that the cable between CF card 
board and mother board is correctly 
connected. 
2. Check that connecting cables and 
connectors not damaged. 
CF card board failure  Replace the CF card board. 
CF card malfunctions 
Mother board failure  Replace the mother board.