Tait TP9100 Service Manual

Also see for TP9100: User guide Product safety and compliance information User guide Service manual Manual

128 Servicing Procedures TP9100 Service Manual© Tait Electronics Limited May 2005Task 2 óVisual InspectionCheck the radio for mechanical loss or damage, even if the fault concerns afunction failure only. Inspect the radio as follows:■ knob for power/volume control■ knob for channel control, and 3-way actuator■ antenna SMA connector■ keys, lens and LCD■ front panel■ metal chassis■ accessory connectorImportant Engraving the chassis can significantly reduce the mechan-ical strength and will void any warranty. If the chassis hasbeen engraved, it must be replaced.Task 3 óPower Up the Radio With the radio connected to the test equipment as described in “TestEquipment Setup” on page 86, attempt to power up the radio.1. Apply power to the radio and turn on the power/volume control.2. If the radio powers up successfully, go to Task 4. If it does not, repairthe radio as described in “On/Off Switch Faulty” on page 141.3. If the repair succeeded without the need for replacing the main boardgo to Task 4. Otherwise continue with Step 4.4. If the main board was replaced or if the repair failed, re-assemble theradio as described in “Reassembling the Radio” on page 112.Conclude with the tasks of “Final Tasks” on page 134.