Marantz AV8003 - Page 21

19
Abnormal detection operation when the power is turned
on
電源ON時の異常検出動作
_PRE_MUTE
(IC20: Q5, 14pin)
(OUT)
_STAND BY (136pin)
(OUT)
_STAND BY LED (94pin)
(OUT)
_P_DOWN (25pin)
(IN)
_P_LINE_FAIL (135pin)
（IN)
_5V_DOWN (137pin)
(IN)
Hi
：Normal
Lo: Abnormal
Lo:
異常
AC POWER SUPPLY: POWER ON
STAND BY LED
：消灯
STANDBY LED：LIGHT OUT
INCONSTANT
3.5 sec
①
Lo: MUTE RELAY ON
MUTE
：OFF
FRONT_OFF
(IC20: Q4, 7pin)
(OUT)
Lo: FRONT ON
200 msec
①
Hi: MUTE ON
各ch MUTE
EACH CHANNEL MUTE
(OUT)
INCONSTANT
不定
不定
電源立ち上げ：異常時
if ①=L
i
f ①=H
_STAND BY(OUT)
：①（3.5 sec）で_P_LINE_FAIL または
5V_DOWN がLoを検出したら、_STAND BY を以後Loにする
_STANDBY (OUT): If it detects of ①（3.5 sec）
And Lo is detected of _P_LINE_FAIL or 5V_DOWN,
it will be made L after that.
Hi
：Normal
Lo: Abnormal
Lo:
異常
_STANDBY LEDの処理→A
How to respond to the flickering
_STANDBY LED
→ A
_STANDBY LED
の処理→ A
How to respond to the flickering
_STANDBY LED
→ A
A
Flickering (every 500 msec)
点滅 (500 msec間隔)