5-3
5
TABLE 5-2 TROUBLESHOOTING GUIDE
Possible
Symptom
Fault
Action or Check
Unit will not turn on Power supply not
Check for AC power at the
PWR LED off
plugged in or on
power adapter.
Power in 8099
Check 5V and 3.3V testpoints
in the 8099.
3.3 volts missing
Check 3.3 volt testpoint.
Defective crystal
Check output of Y1 across
resistor R6
LEDs stuck on
Internal fault
Check TP3 (3.3V) and TP2
(5 V) for proper voltage.
Return unit for repair
Unit shows blinking
Self test fault
Refer to Self Test errors in
LEDs at power turn-on
Table 5-3
Unit does not
LAN LED off
Wrong cable. Use a standard
respond to client PC
Ethernet cable to connect to a
hub or switch. Use a cross-
over cable to connect to a PC.
No network Check hub,
switch or PC for proper
operation
RDY LED Blinking All 8099 sockets or links
used. Wait for the COMM
timeout or power cycle the
8099 if you are the only
client connected to the 8099.
LAN LED on
No network messages
ACT LED never on received by the 8099. Check
network router and gateways
for proper settings
Check 8099 and PC IP
settings for the 8099 network
location
LAN LED on
Rescan for VXI-11 services.
ACT LED blinks
Select correct 8099 or IP
address
