D - 4 Disassembling the radio June 2003 IPN: M5000-00-105Disassembling the radioRemoving the front panel from thechassisUnscrew the antenna and detach the battery pack.The channel selector and on/off/volumecontrol knobs need to removed before separat-ing the front panel and the chassis.To remove the knobs, insert a side cutter at thebase of each knob, flat side down (Figure D-2),making sure not to damage the knob label andthe switch shaft. Squeeze lightly; the knobsshould pop off. Discard the knobs.Some earlier Tait Orca 5000 portable radioshave the knobs glued on. If so, the knobísmetal insert will remain on the switch shaft.Remove the insert using a sharp scalpel blade.Remove the two chassis screws at the base ofthe radio (Figure D-1), then reattach thebattery and hold the base of the radio in onehand. With the other hand, pull the chassisfrom the front panel using the base of thebattery as leverage (Figure D-3).At this point you can replace the following: the front panel assembly; the PTT keypad (PTT key and function keys); the speaker; the lens; the keypad; and the volume plate and volume keypad.Figure D-1: Removing the chassis screwsNote that you should not attempt to removethe PTT keypad before removing the frontpanel from the chassis. See ìReplacing the PTTkeypadî on page D-8 for more information.Figure D-2: Removing the knobs132chassisfront panelchassis screws123channel selectoron/off/volume controlknob labelinsert side cutters here1234