Yamaha BRX-610 Service Manual page 28

3. Protection History Check
This menu is used to display the history of protection function.
Press the "DISPLAY" key on the remote control and the history of protection function is displayed. (Fig. 5)
*
Numeric values in the figure are given as reference only.
1 - S D P R O T
2 - D C x x x H
3 - 3 V : x x x L
4 - 1 2 V : x x x L
The history of protection function is as shown below.
SD PROT: Digital amplifier shut down detection
DC xxx H: DC voltage of speaker output protection detection
1V xxx L: 1.15V/1.5V power supply voltage protection detection
3V xxx L: 3V/5V power supply voltage protection detection
12V xxx L: 12V/-VP power supply voltage protection detection
20V xxx L: 20V power supply voltage protection detection
H: Displayed when the voltage is HIGHER than upper limit
L: Displayed when the voltage is LOWER than lower limit
xxx: A/D conversion value of voltage at the moment when the protection function worked
NO PRT: No protection
History 1
History 2
History 3
History 4
Fig. 5
BRX-610/NS-PZ20
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