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Information
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Featured Product
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- GENERAL
- DISASSEMBLY
- Cabinet (Rear)
- ELECTRICAL ADJUSTMENTS
- DIAGRAMS
- Block Diagram
- Printed Wiring Board - Main Board (Conductor Side)
- Printed Wiring Board - Main Board (Component Side)
- Schematic Diagram - Main Board (1/2)
- Schematic Diagram - Main Board (2/2)
- Printed Wiring Board - KEY Board
- Schematic Diagram - KEY Board
- IC Pin Function Description
- EXPLODED VIEWS
- Cabinet Section
- Chassis Section
- ELECTRICAL PARTS LIST
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ICF-SW7600GR
SERVICE NOTE
The cautions when carrying out exchange of IC302 (6-800-111-01), or exchange of KEY board (A-4440-289-A). When carrying out exchange of IC302, or exchange of KEY board, a setup of destination is needed. Procedure of a setup : 1. A power supply is supplied and a clock is displayed. (Once it turns ON a power supply, it is made to turn off, if it is in power saving.) 2. Two test lands of KEY board are made to short-circuit. (Fig.1) 3. A liquid-crystal display lights up altogether except PAGE No. 4. By the difference to destination, 1 to 3 is inputted by 10 keys. (The difference to destination is as follows.) 5. The beep sound �pi� carries out and it returns to a usual clock display.
Destination 1 BAND LW MW AM SW MW step FM Others 150-529kHz 530-1620kHz 1621-29999kHz 9kHz 76.0-108.0MHz Destination 2 US, Canadian 150-529kHz 530-1620kHz 1621-29999kHz 10kHz 76.0-108.0MHz Destination 3 Saudi Arabia 150-285kHz 530-1620kHz 2250-26100kHz 9kHz 87.5-108.0MHz
[KEY BOARD] (CONDUCTOR SIDE)
CN301 1 2
E
B
C D
C
A
TO MAIN BOARD
E
B
S
B G
E
C
G
A K
S
D
18
17
Short
S323 S319 3 4 b STANDBY MEMORY a K 1 5 A
IC305
IC303
21 34 S327 AM BAND S325 ERASE S328 ENTER 21 34
IC304
11
1-679-367-
(11)
3
4
Fig. 1
5
6
7
2
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