Marantz SR6003 Service Manual page 16

電源ON時の異常検出動作
Abnormal detection operation when the power is turned on
Abnormal detection operation when the power is turned on
_STAND BY (138pin)
(OUT)
_P DOWN (25pin)
(IN)
_P_LINE_FAIL (122pin)
(IN)
_P_AMP_FAIL (121pin)
(IN)
_P_CUR_FAIL (120pin)
(IN)
_5V_DOWN (137pin)
(IN)
FLRA_ON (IC15 : 4pin)
FLRB_ON (IC15 : 5pin)
SURR_ON (IC15 : 6pin)
SBLR_ON (IC15 : 7pin)
(OUT)
各ch MUTE
EACH CHANNEL MUTE
(OUT)
_STAND BY LED (135pin)
Ａ
(OUT)
_STAND BY LED (135pin)
Ｂ
(OUT)
3.5sec
2sec
500msec
if ①=H if ②=H
if ①=L if ②=L
AC POWER SUPPLY: POWER ON
不定
INCONSTANT
不定
Hi：Normal
INCONSTANT
Lo：Abnormal
②
Lo：異常
Hi：Normal
Lo：Abnormal
①
+5VDD=OK
Lo SPEAKER：OFF
Lo MUTE：ON
LED：消灯
STANDBY LED:
LIGHTS OUT
Flickering (every 125msec)
点滅(125msec間隔)
LED：消灯
STANDBY LED:
LIGHTS OUT
Flickering (every 500msec)
点滅(500msec間隔)
14
電源 時の異常検出動作
ON
_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
STANDBY (OUT): If it detects in order of
①②③④ and Lo is detected, it will be made Lo
after that.
if ③=H if ④=H
if ③=L if ④=L
Hi: Normal
Lo: Abnormal
③
Lo：異常
Hi: Normal
④ Lo: Abnormal
Lo：異常
_STAND BY LEDの処理→Ａ
How to respond to the
flickering
__STANDBY LED→A
_STAND BY LEDの処理→Ｂ
How to respond to the
flickering
_STANDBY LED→B
_STAND BY LEDの処理→Ａ
How to respond to the
flickering
__STANDBY LED→A
_STAND BY LEDの処理→Ｂ
How to respond to the
flickering
_STANDBY LED→B