Disassembly/Reassembly Procedures Ensuring Radio Immersibility 5-37
8. Remove the radio from the water container, and dry the radio thoroughly. Be especially
careful to dry the area around the main seal to prevent contamination of the internal
electronics while the unit is open
9. Remove the pump connector from the chassis.
10. Radio after performing Pressure Test must undergo baking process in a temperature chamber
for constant temperature soaking at 60°C for 1 hour. This is to ensure no moisture is trapped
inside the radio and prevent contamination of the internal electronics after reassembling the
radio.
5.8.9 Troubleshooting Leak Areas
Before repairing any leak, first read all of the steps within the applicable section. This will help to
eliminate unnecessary disassembly and reassembly of a radio with multiple leaks. Troubleshoot
only the faulty seal areas listed in Section 5.8.8 "Pressure Test" on page 5-36, and when multiple
leaks exist, in the order listed.
5.8.9.1 Front Housing
Do one or both of the following:
1. If a leak occurs at the Lens (Display Models only), Universal Connector, chassis/Housing
interface, PTT button area of the housing, replace the housing. Refer to Section 5.6 "Radio
Disassembly – Detailed" on page 5-6.
a. Remove the housing assembly from the radio.
b. Discard the housing assembly.
c. Install a new housing assembly to the radio.
2. If the leak occurs at the control top area, remove the knobs in order to determine the leak
location:
a. Conduct the Pressure Test.
b. Identify the leak location.
5.8.9.2 Chassis
To replace the Chassis Assembly:
1. Refer to Section Section 5.6.1 "Front Kit from Chassis Disassembly" on page 5-6, remove
the chassis assembly from the radio.
2. Refer to Section Section 5.6.2 "Back Kit Disassembly" on page 5-12, remove the Mainboard
from chassis.
3. Assemble a new chassis assembly; discard the old chassis assembly.
4. Reassemble the chassis assembly followed by installing into front kit. (Refer to Section 5.7
"Radio Reassembly - Detailed" on page 5-20.
Keep the area around the chassis’s vacuum port dry by ensuring that there is no
water around it.
NOTE
Before reassembling the radio, always install a Battery Contact Seal in the defective area.
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