Сервисный мануал источника звука Sony ICF-SW07

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SERVICE NOTE
REPLACING THE SW STATION CALL ROM
The propagation of short-wave radio waves is greatly affected bymany causes such as atmospheric phenomenon due to dark spots onthe sun, etc.This makes it necessary for short wave radio broadcast stations toperiodically change their broadcast frequencies. This set can be re-placed with a new SW STATION CALL ROM to allow changingthe broadcast frequencies.This set came with the latest ROM (Sony) when purchased. Theuser can later on when needed, purchase the latest updated ROM (FCorp.) version from the F Corporation on referring to the instruc-tions for "Purchasing the Latest SW STATION CALL ROM" whichare included with the unit. These ROMs can alsobe custom made to match the user's particular combination of broad-cast station frequencies.
· Identify the 2 different types of ROMs (Sony or F Corp.) as
The Sony ROM has no printing on it.
The F Corp. ROM is marked with the F Corporation name.
· Servicing is provided for the accessory Sony ROM.
· Only the most recent version is supplied for replacing the Sony
· A new Sony ROM is issued every year in October and the part
No. suffix is also changed.
· A new updated Sony ROM is issued every year so is not usually
kept in stock.
· Servicing is not provided for the F Corp. ROM.
· Instruct the user to directly contact the F Corporation when the
F Corp. ROM is obviously malfunctioning or defective.
AddressMail
: F Corporation P.O. Box 816 Tokyo 100-8692 Japan
: 81-3-3436-1932
E-mail : fco@wavehandbook.com
AEP, 7AEP model only
Connecting short land as in the figure when changed main board.
[MAIN BOARD] (SIDE A)