Page 6-16 G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 4 190-00716-01
6.23 Instrument Panel Switch/Annunciator (Prop Synch and Standby Battery)
Removal:
1. Remove MFD from the instrument panel as per Section 6.1.
2. Using a M22885/108T8234 extraction tool, disconnect connector from the back of the switch.
3. Pull the pushbutton cap fully out of the switch body and allow the cap to rotate 90° where it is
held by the retaining element.
4. While holding the retaining sleeve (back side of the instrument panel), loosen the two screws
inside the switch body until the switch is free to come out.
5. Remove the mounting sleeve and switch from the instrument panel.
Reinstallation:
1. Reinstallation of the Prop Synch and Standby Battery switches is the reverse of the removal.
Reference the Main Instrument Panel Installation drawing, listed in Table 1-2, for more details.
2. Press and hold the cockpit annunciator “Press To Test” switch located to the left of the
annunciator panel, and verify the following:
• For the Standby Battery Switch/Annunciator: legends illuminate and reflect “STANDBY
BATTERY” in white, “ARM” in green, and “ON” in amber.
• For the Prop Synch Switch/Annunciator: legends illuminates and reflect “PROP SYNC”
in white, and “ON” in green.
3. Release cockpit annunciator “Press To Test” switch.
4. If further maintenance is not required, proceed to Section 8.
6.24 Emergency Frequency Switch/Annunciator
Removal:
1. Remove the switch plate from the pedestal using a screw driver to loosen the quarter turn
fasteners.
2. Using a M22885/108T8234 extraction tool, disconnect connector from the back of the switch.
3. Pull the pushbutton cap fully out of the switch body and allow the cap to rotate 90° where it is
held by the retaining element.
4. While holding the retaining sleeve (back side of the switch plate), loosen the two screws inside
the switch body until the switch is free to come out.
5. Remove the mounting sleeve and switch from the switch plate.
Reinstallation:
1. Reinstallation of the Emergency Frequency switch/annunciator is the reverse of the removal.
Reference the Pedestal Re-Configuration drawing, listed in Table 1-2, for more details.
2. Press and hold the cockpit annunciator “Press To Test” switch located to the left of the
annunciator panel, and verify the following:
• legends illuminate and reflect “EMERG FREQ” in white and “121.5” in white.
3. Release cockpit annunciator “Press To Test” switch.
4. If further maintenance is not required, proceed to Section 8.
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