Abnormal detection operation when the power is turned on
_P_AMP_FAIL (121pin)
FLRA_ON (IC15 : 4pin)
FLRB_ON (IC15 : 5pin)
SURR_ON (IC15 : 6pin)
SBLR_ON (IC15 : 7pin)
SPEAKER：OFF
EACH CHANNEL MUTE
MUTE：ON
_STAND BY (138pin)
_STAND BY LED (135pin)
_P DOWN (25pin)
_P_LINE_FAIL (122pin)
_5V_DOWN (137pin)
AC POWER SUPPLY: POWER ON
①
③
+5VDD=OK
INCONSTANT
INCONSTANT
2sec
Lo
Lo
②
STANDBY LED:
LIGHTS OUT
Flickering (every 125msec)
_P_CUR_FAIL (120pin)
500msec
(IN)
3.5sec
if ①=L
if ①=H
if ②=L
if ②=H
Lo：Abnormal
Hi：Normal
Lo：Abnormal
Hi：Normal
Lo: Abnormal
Hi: Normal
if ③=L
if ③=H
(OUT)
(IN)
(IN)
(IN)
(IN)
(OUT)
(OUT)
(OUT)
STANDBY (OUT): If it detects in order of
①②③④ and Lo is detected, it will be made Lo
after that.
_STAND BY LED (135pin) STANDBY LED:
LIGHTS OUT
Flickering (every 500msec)
(OUT)
How to respond to the
flickering
__STANDBY LED→A
How to respond to the
flickering
__STANDBY LED→A
Ａ
Ｂ
How to respond to the
flickering
_STANDBY LED→B
④ Lo: Abnormal
Hi: Normal
How to respond to the
flickering
_STANDBY LED→B
if ④=H
if ④=L
_STAND BY(OUT)：
①②③④の順で検出を行い、
Loを検出したら、以後Loにする
_STAND BY LEDの処理→Ａ
_STAND BY LEDの処理→Ａ
_STAND BY LEDの処理→Ｂ
_STAND BY LEDの処理→Ｂ
Lo：異常
Lo：異常
Lo：異常
各ch MUTE
点滅(500msec間隔)
点滅(125msec間隔)
LED：消灯
LED：消灯
不定
不定
電源ON時の異常検出動作
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