BOS, Chapter 4 - Troubleshooting

Branch Office System
Chapter 4 - Troubleshooting

Troubleshooting and Preventative Maintenance

Troubleshooting

 PROBLEM          POSSIBLE CAUSE      SOLUTION          

1) System does   1)  not plugged in  1)  plug in power  
not turn on                          cords              
                 2)  switch not      2)  turn switch    
                 turned on           on at rear of      
                 3)  bad power       drawer             
                 supply              3)  replace power  
                 4)  power supply    supply             
                 fault               4)  turn AC        
                                     switch off and on  
                                     again              

2) Power supply  9 wire cable from   Check cable to be  
on LEDs and      power supply to     sure it is seated  
video not on     mux is defective    and locked in      
                                     place              

3) Peripheral    shunting board not  check to be sure   
boards not       installed or        shunting board is  
working in some  seated properly     fully seated       
slots                                                   

4) No video      1) DB HD 15 video   1) check cable     
                 cable not seated    for connection     
                 2) mux processor    2) press           
                 select set to       PROCESSOR          
                 unused channel      pushbutton to      
                                     locate next        
                                     active processor   
                                     channel            

5) Keylock       keylock cable not   Reseat connector   
switch not       locked                                 
working                                                 
correctly                                               

6) Muxed floppy  1) BIOS not set     1) run "setup"     
does not work    2) cables not       2) check power     
                 connected           and data cables    
                                     for connection     
                                     and proper         
                                     polarization       

7) IDE hard      1) cables not on    1) check power     
disk drive       properly            and data cables    
(HDD) does not                       for connection     
work                                 and proper         
                 2) BIOS not set     polarity           
                                     2) run "setup"     
                 3) IDE controller   and configure HDD  
                 switched off on BC  3) turn on switch  
                 processor           (see BC            
                                     installation       
                                     manual for         
                                     instructions)      

8) Power supply  Power supply fuse   Remove power       
will not work    is blown            supply assembly    
after turning                        and replace fuse   
power off and                        with same type     
back on                              and rating         

9) Mouse cursor  Mouse was moved     Exit application   
stuck near       during processor    and restart        
side, top, or    channel change      application        
bottom of                            driver             
screen

Preventative Maintenance

Periodically, do the following:

1. Ensure that the system fan is operating.

2. Clean floppy drive heads with standard head cleaning floppy disk and cleaner.

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Troubleshooting and Preventative Maintenance