Sony STR-AV880 - Page 4

STR-AV880
Notes on. Repair -
Initialization
For abnormal operation, or when replacing the
lithium battery or microcomputer, short the main
board INITIAL pin when power is on. The micro-
computer is initialized and operation begins from
initial state.
When the microcomputer is operating, the I/O
CLOCK port constantly generates a CLOCK pulse.
[MAIN BOARD]
To change the AM tuning interval
The AM tuning interval is preset at the factory to 10 KHz to
match the frequency allocation system of your country.
If you use the receiver where the frequency allocation system
is based on a 9 kHz interval, change the interval as follows.
1 Depress the MAIN POWER switch to turn on the unit.
2 Press the SYSTEM POWER switch to turn off the unit.
3 While pressing the “+” STATION SCAN key, press the
SYSTEM POWER switch to turn the unit on.
The AM tuning interval has been set to 9 kHz. To reset the
interval to 10 kHz, follow the same procedure.
Note
When the interval is changed, all preset and located stations
and acoustic settings will be erased. After changing the
interval, memorize the stations and acoustic settings again.