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- ICF-7600DA/7700
|
TABLE
OF CONTENTS
System IC201, uwPD1715G
............
5
1-2-1.
Outline of the Station-Selection.........
5
1-2-2.
Description on the Terminals...........
5
1-2-3.
On the Key Matrix..................
9
1-2-4.
Description on Displaying Function ...... 13
1-2-5.
Imitial-State Setting. ..........2.....
14
1-2-6.
Muting-Output Timings
..............
14
1-3.
Outline of Terminals of the LCD Dot-Matrix
Segment Driver IC202, MSM5259GS...... 16
1-4.
On the new LCD panel, LCD1..........
18
Section 2.
Electrical Adjustments...............
19
Section 3.
Diagrams....................000.
25
3-1.
Semiconductors Lead Layouts.......... 25
3-2.
Mounting Diagram(1)
............... 26
3-3.
Schematic Diagram(1)............... 31
3-4.
Mounting Diagram (1) ............... 35
3-5.
Schematic Diagram (2)............... 39
3-6.
Mounting Diagram (2)............... 44
Section 4.
Exploded Views and Parts List.......... 49
Section 5.
Electrical Parts List................. $1
Troubleshooting Guide............... 56
NOTE:
Removal and Block Diagram Sections have been omitted.
FEATURES
¢ An FM/LW/MW/SW
1-12, 15 bands portable radio with world-wide band
coverage.
¢ A quartz-controlled PLL (Phase Locked Loop) synthesizer system using a
microcomputer for easy pinpoint tuning.
The tuned frequency is also'digitally displayed.
¢ Up to 15 stations can be preset for button-touch tuning.
° An easy searching a SW station with the SW meter band select function.
¢A timer standby function to receive a desired broadcast at the desired time.
°A
sleep timer turns the radio off automatically in 65 minutes.
Flexible Circuit Board Repairing
1.
Keep the temperature
of the soldering iron at
270° + 10°C during repairing.
You
can
maintain
the
temperature
of the
soldering iron around 270°C by using the ther-
mal controller as illustrated on the right.
2.
Do not touch the soldering iron more
than 4
seconds or 3 times on the same
conductor of
the circuit board.
3.
Do
not
apply force
on the conductor
when
soldering or unsoldering.
Tip of soldering iron
good
wrong
———_
--
_an—0"nwm—S-
MAIN
BOARD
REMOVAL
Unsolder the ground-connecting pin at the main board as
shown below.
main board
ground-connecting pin
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