MSS
Diagnostics and Repair, 1.00.00

Start Up Diagnostics

Problems are most frequently found during start up. Your pre-dive check should catch these problems. Your post dive check will provide a baseline for the next dive and may catch problems that can be solved before the system is needed urgently.

If the system does not start or respond correctly, eliminate the tether from the set up and test again.

Issue Items to Check Status / Resolution
No Power Is the AC power source working? Fix or change the AC power source.
Is the GFCI tripped? Reset the GFCI.
Check that all cables are plugged in. Plug in any loose cables.
Are the power switches on? Turn on the power switch(es).
No Display Monitor cable connected Connect monitor c able
Monitor cable damaged Repair or replace cable
Check brightness Adjust brightness
Check for Computer boot restart the system
No Desktop "GRUB" Menu visible Select UBUNTU to boot
No ROV Power Check ROV power switch and 400 V indicator Turn on ROV power switch
Check tether Fix or replace tether
No ROV control/telemetry/etc. Check tether Fix or replace tether
Run vr_enum If vr_enum reports modules present, problem is in the Ethernet. If vr_enum does not report modules present, power, telemtry or ROV system failure suspected.

Document Path: MSS Diagnostics and Repair > Symptom Recognition and Evaluation > Start Up Diagnostics