Codan Radio Communications UT-4-400 Manual De Usuario

Instructions

1.  Remove the four screws (B) on the side of the Transmitter Case.

2.  Remove the four Front Panel screws (A).

3.  Remove the Transmitter Case.

4.  To remove the TX Power Amplifier, remove the two Front Panel screws (F). 

     and the 4 screws (D) holding the TX Power Amplifier to the TX Main PCB.

5.  To remove Digital Controller PCB shield, remove the five screws (C).

6.  To remove Digital Microprocessor PCB, remove 1 screw(H) and 2 standoffs.       

     and disconnect the 2 ribbon cables between the 2 PCBs. 

7.  To remove Digital Controller PCB, remove 3 screws (G) and 3 standoffs.

8.  To remove Digital RF PCB shield, unsolder 4 pins.

9.  To remove Digital RF PCB, remove two screws (E) and 2 slotted standoffs.

10. Assembly is the reverse of steps 1 through 8.

A

A

A

A

TRANSMITTER

14 HP CASE

B

B

B

B

TRANSCEIVER RF 
BOARD SHIELD 
(4 Pins Soldered to main PCB)

TX POWER AMPLIFIER

D

D

D

D

E

E

DIGITAL SIGNAL 
PROCESSOR PCB

TRANSMITTER FRONT PANEL

DIGITAL TRANSMITTER 
TRANSCEIVER RF PCB

 

Slide PCB into slot 4

DIGITAL TRANSMITTER
MAIN PCB

F

F

G

G

DIGITAL TRANSMITTER
MICROPROCESSOR PCB

C

C

C

C

C

DIGITAL SIGNAL 

PROCESSOR 

BOARD SHIELD

G

H

Project 25 Digital Transmitter Instruction Manual

xT4DM2B

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