Kenwood KRC-689 Instruction Manual page 39

Installation
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Locking the faceplate to the unit
If you want to lock the faceplate to the unit so that it does not
fall off, follow the directions below.
1
Refer to the function "Theft Deterrent Faceplate" (page 8) and
remove the faceplate.
2
Insert the provided screw into the hole at the center of the
bottom side of the faceplate which you have removed from
the unit.
Accessory7
3
Push back the bottom of the faceplate bracket unit it locks.
4
Refer to the section "Theft Deterrent Faceplate (page 8)" and
then reattaching the faceplate.
2CAUTION
Never insert the taptite screws (ø2 × 4 mm) in any other screw
holes than the one specified. If you insert it in another hole, it
will contract and may cause damage to the mechanical parts
inside the unit.
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