TM 1-8415-215-12&P
e. For troubleshooting information applicable to the operation of the Night Vision Goggles Model AN/AVS-6(V)1 and
AN/AVS-6(V)2, refer to TM 11-5855-263-10.
f. For troubleshooting information applicable to the operation of the Helmet Directed Fire Control Subsystem Model
XM-128 and XM-136, refer to TM 9-1270-212-14&P.
g. For troubleshooting information applicable to the operation of the Oxygen Mask, MBU-12/P, refer to TM 55-1660-
247-12 or TO 15X5-3-6-1.
h. You should verify the fault before performing troubleshooting.
Symptom Index
Troubleshooting
Procedure
VISOR
Cannot be lowered
1
Cannot be raised
1
CHIN STRAP
Unable to adjust
3
Unable to attach
4
NAPE STRAP
Unable to adjust
5
EAR CUP COMPRESSION
Unable to adjust
2
MICROPHONE
Unable to keep in position
6
3-6
