G.R.A.S. SOUND & VIBRATION
Power Module Type 12AQ
Page 11
3
Internal Features
Note: switch the Type 12AQ off and disconnect it from any external power supply before remov-
ing the baseplate for any reason. Afterwards replace the baseplate.
The battery compartment is contained within the cabinet of the Type 12AQ. To gain access to
this, first remove the knurled locking screw (see Fig. 2.2) and slide the baseplate off.
3 .1 Battery Compartment
Fig. 3.1 shows the battery compartment after removing the base plate. Always use a fresh set of
battery cells (6 x LR14 {C}) standard alkaline cells) when replacing spent cells, making sure that
the polarity is as indicated in the battery compartment.
Fig. 3.1 Showing the battery compartment of the Type 12AQ
