6
GTR 8000 Base Radio Maintenance
This chapter describes periodic maintenance procedures relating to the GTR 8000 Base Radio.
6.1 Fan Grill Cleaning Instructions
If the station equipment is installed in a dusty environment, precautions must be taken to filter the air used
for forced cooling of the station. Excessive dust drawn across and into the device circuit modules by the
cooling fans can adversely affect heat dissipation and circuit operation. In such installation, be sure to
clean or replace external filtering devices periodically.
If dust has accumulated on the fan grills, cleaning of the fan grills is recommended. When cleaning, care should be
taken to prevent dust from being pulled into the modules. It is recommended that a damp cloth be used to wipe the
front of the fan grills. When removing the power supply, make sure that the unit is turned off before proceeding.
6.2 Aligning the Internal Frequency Reference
Oscillator
The base radio or receiver must be turned on for at least one week before the internal frequency reference
oscillator is aligned.
See Base Radio Service Help > Service Screens > Alignment Screens in the
CSS Online Help
for the alignment
procedures.
6871022P86-A - November 2012
6-1
Summary of Contents for GTR 8000
Page 2: ......
Page 4: ......
Page 6: ......
Page 14: ......
Page 18: ......
Page 22: ......
Page 26: ......
Page 60: ......
Page 177: ...5 8 1 3 VHF Tuning Procedure Figure 5 1 Preselector Tuning VHF 6871022P86 A November 2012 5 7 ...
Page 181: ...5 8 2 3 UHF Tuning Procedure Figure 5 2 Preselect Tuning UHF 6871022P86 A November 2012 5 11 ...
Page 230: ......
Page 234: ......
Page 244: ......
Page 286: ......
Page 300: ......
Page 338: ......