Yamaha R-N500, Руководство по обслуживанию

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C 1 - 1
A L L : O K
C1. ACCESS CHECK
This menu is used to check the communication and bus line connection between devices on DIGITAL P.C.B.
C1-1. ALL
The total detection result of sub-menus from C1-2 to C1-4 is displayed.
OK: No error detected
NG: An error is detected
--: Checking
C 1 - 2
D I R B U S : O K
C1-2. BUS DIR
Communication and bus line connection between microprocessor (IC21) and DIR (IC61) are checked.
OK: No error detected
NG: An error is detected
--: Checking
C 1 - 3
E E P R O M : O K
C 1 - 4
T U N E R : O K
OK: No error detected
NG: An error is detected
--: Checking
OK: No error detected
NG: An error is detected
--: Checking
C1-3. EEPROM
EEPROM (IC22)'s reading/writing is checked.
C1-4. TUNER
The AM/FM TUNER I2C (Inter integrated circuit) bus line connection is checked.
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R-N500
R-N50
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