User's Manual

ManualsBrandsPark Air Systems ManualsElectronics50W Transceiver

M7X and M7R Page 5-26 Maintenance

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Replacing the Interface Module

Ensure the input ac and dc supplies to the radio are disconnected before removing the top

cover.

Do not remove the radio’s top cover for at least one minute after switching off the radio.

This equipment contains devices sensitive to electrostatic discharge. Precautions applicable

to handling such equipment, including wearing a static protection wrist strap connected to

earth, should always be taken.

To replace the Interface module:

(1) Remove the radio’s top cover as detailed on page 5-12.

(2) Refer to Fig 5-14 on page 5-18 and identify the Interface module’s position (Module F).

(3) Using a Torx T15 screwdriver, remove and retain the front and rear module securing screws

(Fig 5-16 on page 5-19).

(4) Carefully lift the module disconnecting it from its socket (Fig 5-15 on page 5-19).

(5) Place the replacement module in position and press down to ensure it is fully located in the

chassis socket.

(6) Fit and tighten the front and rear module securing screws (Fig 5-16 on page 5-19).

(7) Refit the radio’s top cover (see page 5-12).

(8) Connect the radio to a PC using the Lemo to USB cable.

(9) Reapply input power to the radio.

(10) Download the Interface module software from the Park Air radio software CD. Instructions for

downloading software are given under the heading ‘Data Loader Application’ starting on

page 5-39.

(11) The radio’s build state is stored in the Interface module. To restore this information, use the DLA

Build State procedure given on page 5-43.

WARNING Dangerous Voltage

Caution ESDs

Summary of content (5 pages)

PAGE 1
Back to Menu Replacing the Interface Module WARNING Dangerous Voltage Ensure the input ac and dc supplies to the radio are disconnected before removing the top cover. WARNING Dangerous Voltage Do not remove the radio’s top cover for at least one minute after switching off the radio. Caution ESDs This equipment contains devices sensitive to electrostatic discharge.
PAGE 2
Back to Menu Replacing the RF PA WARNING Dangerous Voltage Ensure the input ac and dc supplies to the radio are disconnected before removing the top cover. WARNING Dangerous Voltage Do not remove the radio’s top cover for at least one minute after switching off the radio. WARNING Beryllium Hazard Four semiconductor devices used in the RF PA contain the toxic material beryllium.
PAGE 3
Back to Menu Removing the RF PA To remove the RF PA: STANDARD INTERFACE Identify the RF PA cover, shown in Fig 5-18, and using a Torx T10 screwdriver, remove and retain the 26 securing screws (part number 36T46330060). Remove and retain the RF PA cover. PROCESSOR (3) RF CONTROL Remove the Interface module as detailed on page 5-26. GUARD RECEIVER (2) CUSTOM INTERFACE Remove the radio’s top cover as detailed on page 5-12.
PAGE 4
Back to Menu Arrows indicate the M4 x 8 mm pan head securing screws (7 off) Fig 5-19 RF PA Module Securing Screws (5) At the RF PA, disconnect the coaxial cables listed in Table 5-5.
PAGE 5
Back to Menu (6) Looking from the rear of the radio, identify the RF PA 3-way power connector as shown in Fig 5-20. Separate the in-line connector. (7) Looking from the rear of the radio, identify the ribbon cable that connects from the RF PA module to a chassis mounted connector as shown in Fig 5-20. Disconnect the ribbon cable from the chassis connector.