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TABLE OF CONTENTS
1.
SERVICING NOTES
...............................................
2
2.
GENERAL
...................................................................
3
3.
DISASSEMBLY
.........................................................
4
4.
ELECTRICAL ADJUSTMENTS
TUNER Section ..............................................................
6
PULSE MONITOR Section ............................................
8
5.
DIAGRAMS
5-1. Block Diagram ................................................................
9
5-2. Printed Wiring Boards ..................................................... 12
5-3. Schematic Diagram ......................................................... 15
5-4. IC Pin Function Description ........................................... 20
5-3. Schematic Diagram ......................................................... 15
5-4. IC Pin Function Description ........................................... 20
6.
EXPLODED VIEW
................................................... 21
7.
ELECTRICAL PARTS LIST
............................... 22
Forced Reset
The system microprocessor can be reset in the following proce-
dure.
Use these procedure when the unit cannot be worked normally
due to the overrunning of the microprocessor, etc.
dure.
Use these procedure when the unit cannot be worked normally
due to the overrunning of the microprocessor, etc.
Procedure:
1. Set to radio OFF.
2. While pressing the
1. Set to radio OFF.
2. While pressing the
[SCAN]
button, press two buttons of
[START/STOP]
and
[BAND]
simultaneously for 5 seconds.
3. The unit is reset, and display blinking “
AM
12:00
”.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
SECTION 1
SERVICING NOTES
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