Motorola SRX 2200 Model 3.5 User Manual page 26

English
5 Use the toothbrush to lightly brush the gaps at the
base of the knobs and around the switches. Take
extra care around the Speaker Grill and Microphone
port openings.
6 Submerge the radio into tap water and shake it to
remove the detergent.
7 After removing the radio from the water, rinse the
radio under running water to remove any excess
detergent. Take extra care to thoroughly rinse out
any trapped detergent solution from the speaker grill
area.
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8 Shake off excess water and pat dry the radio with a
dry towel. Take extra care to tap/shake out any
trapped water from the speaker grill area.