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IC-746PRO Expanding TX/RX Frequency Coverage | Radioaficion Ham Radio

IC-746PRO Expanding TX/RX Frequency Coverage

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INFORMATION #889

ZIB-078

From: ICOM Inc. / Service Department

Date: October 25, 2001

Service handling necessary:
[ ] Yes    [X] No

Re: Expanding TX/RX Frequency Coverage for the IC-746PRO.

Thank you very much for your continuous strong promotion for our products in your market.

Following information is regarding the modification of expanding the TX/RX frequency coverage of the IC746PRO.

Model:  IC-746PRO #03 EUR

Frequency Coverage After Modification:

TX / RX:   0.100000 - 29.999999MHz,   30.000000 - 60.000000MHz

108.000000 - 143.999999MHz,   144.000000 - 174.000000MHz


Diode Matrix Condition on the MAIN Board:

Parts       Original (#03 EUR)       Expansion         Action Taken

W1602                    1                             1

W1601                    1                             1

W1609                    1                             0                   Removed

W1608                    1                             0                   Removed

W1607                    0                             0

W1606                    1                             0                   Removed

W1605                    1                             1

W1604                    1                             0                   Removed

W1603                    0                             0

W1610                    1                             1


Page.   1    of  2

 


Icom Inc.

1-6-19,  Kamikuratsukuri,  Hirano-ku,  Osaka,  547-0004
JAPAN

Phone : 06 6793 xxxx      Fax : 00 xxxxx
URL : http://www.icom.co.jp/

Note:

1 : Jumper (7030003860 ERJ3GE JPW V) on the MAIN board. 0 : Jumper  is not on the MAIN board.

You do not have to reset the CPU after the above diode matrix is changed. As this modification isn’t confirm yet, we don’t guarantee the result of it. Please do above modification by your own responsibility.

Location of Diode Matrix on the Main Board:

IC-746PRO official mods

If you have any questions, please do not hesitate to ask us. Thank you for your co-operation and support.


Best regards.

Masahiro Gono

ICOM Inc. / Service Department                 Page.   2    of  2

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