Technical Description - Codan X-2 Service Manual

X2 Technical Service Manual
4
This section of the manual contains a technical description of the X-2
transceiver and should be read together with the drawings shown in
Table 4.1.
Description
Rx/Exciter & Control
-RF and Dual Synthesizer
-455 kHz IF and Audio
-Micro and Peripherals
PA and Filter
Front Panel
Table 4.1: Drawing reference Directory
Circuit components on the Rx/Exciter PCB are numbered according to the
following system:
•
•
•
A prompt to use a particular drawing will appear as a symbol in the text.
For example:
104-02907 sheet 1 indicates that you should use sheet 1 of drawing
number 04-02907.
As an additional help a general location guide has been provided to indicate
where to find certain circuit elements described in the text.
For example:
IC302
Publication No: 15-02047
Sheet 1: 1 to 299
Sheet 2: 301 to 399
Sheet 3: 401 to 499
can be found in the vicinity of row D and column 5.
[D5]

Technical Description

Circuit Diagram
04-02907 (3 sheets)
Sheet 1
Sheet 2
Sheet 3
04-02908
04-02909
4-1
PCB Assembly
08-04840
08-04841
08-04842