SRF-M73 - Sony Audio Service Manual (repair manual). Page 2

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TABLE  OF  CONTENTS
1.
SERVICING  NOTES
...............................................
2
2.
GENERAL
...................................................................
3
3.
DISASSEMBLY
.........................................................
4
4.
ELECTRICAL  ADJUSTMENTS
.........................
6
5.
DIAGRAMS
5-1. Block Diagram ................................................................
8
5-2. Printed Wiring Boards ..................................................... 10
5-3. Schematic Diagram ......................................................... 13
5-4. IC Pin Function Description ........................................... 18
6.
EXPLODED  VIEWS
................................................ 19
7.
ELECTRICAL  PARTS  LIST
............................... 20
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.
Procedure:
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
”.
SECTION  1
SERVICING  NOTES
Page of 15
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