TM 10-6630-245-13&P
Table 4-1. Unit Troubleshooting
WARNING
Electrical shock may occur if spectrophotometer front panel is opened while connected to ac
power. Always unplug power cord from both unit and external power source before removing
front panel. If shock occurs, see medic.
PROCEDURE 4-1. Spectrophotometer Not Operative Under Ac Power (ZERO ADJUST Control Does Not Work).
Set Up and Check Ac Power Operation. Use Table 3-1, Procedure 3-4.
Ac Power Operating OK.
Ac Power Not Operating.
Check/Replace Fuse. Use Para. 4.2.
Spectrophotometer
Spectrophotometer
Working.
Not Working.
Spectrophotometer
Requires Replacement For
Use With Ac Power.
PROCEDURE 4-2. Spectrophotometer Not Operative Under Dc Power.
Set Up and Check Dc Power Operation. Use Table 3-1, Procedure 3-5. Replace Batteries if Necessary.
Dc Power Operating OK.
Dc Power Not Operating.
Spectrophotometer Requires Replacement
For Use With Dc Power
4-2
