Marantz MM8003 - Page 11

9
Abnormal detection operation when the power is turned on.
電源ON時の異常検出動作
Abnormal detection operation when the power is turned on
B POWER
SUPPLY: Lo
AC POWER SUPPLY : POWER ON
INCONSTANT
INCONSTANT
INCONSTANT
INCONSTANT
STBY LED:
LIGHTS OUT
Flickering (every 125 msec)
STANDBY (OUT) : If it detects in order of
①②③④ and Lo is detected,
it will be made Lo after that.
STBY LED:
LIGHTS OUT
Flickering (every 500 msec)
点滅(0.5 sec 間隔) ①②③でLo : 異常を検出したら消灯
How to respond to the flickering
_STBY LED
→A
How to respond to the flickering
_STBY LED
→A
How to respond to the flickering
_STBY LED
→B
How to respond to the flickering
_STBY LED
→B
How to respond to the flickering
_STBY LED→B
If
②=H _AVSS_DET monitoring start
_P_AMP_FAIL (41pin)
SPK_ON1 (16pin)
SPK_ON2 (15pin)
SPK_ON3 (14pin)
SPK_ON4 (13pin)
SPEAKER : OFF
_MUTE (51pin)
MUTE : ON
AVSS_OUT (50pin)
B
電源 : Lo
_STANDBY1 (46pin)
_STBY_LED (52pin)
_P_LINE_FAIL (45pin)
①
③
不定
不定
電源立ち上げ
: 異常時（1-2）
2 sec
Lo
Lo
②
LED : 消灯
点滅
(125 msec間隔)
_P_CUR_FAIL (38pin)
500 msec
(IN)
3.5 sec
if
①=L
AVSS_DET
の監視開始（B電源: Hi or Lo）
if ①=H
if
②=L
if
②=H
Lo : Abnormal /
異常
Hi : Normal / 正常
Lo : Abnormal /
異常
Hi : Normal / 正常
Lo : Abnormal /
異常
Hi : Normal / 正常
if
②=L
if
③=L
if
③=H
(OUT)
(IN)
(IN)
(OUT)
(OUT)
(OUT)
(OUT)
_STAND BY(OUT) :
①②③の順で検出を行い、
Loを検出したら、以後Loにする
_STANDBY2 (47pin)
(OUT)
200 msec
if
①=L
if
①=H
if
②=L
if
②=H
if
③=L
if
③=H
_POWER_LED1
(37pin)
POWER LED1 : Flickering (every 0.5 sec) It is Lo with
①②③ : When abnormality is detected, LIGHTS OUT
(OUT)
_STBY_LED (52pin)
LED :
消灯
点滅
(500 msec間隔)
(OUT)
_STBY_LED
の処理→A
_POWER_LED1 : LIGHTS OUT /
消灯
_STBY_LEDの処理→A
_POWER_LED1 : LIGHTS OUT /
消灯
_STBY_LEDの処理→B
_POWER_LED1 : LIGHTS OUT /
消灯
_P_DOWN (27pin)
AC
電源 : ON
(IN)
100 msec
③
不定
Lo : Abnormal / 異常
Hi : Normal / 正常
_STBY_LED
の処理→B
_POWER_LED1 : LIGHTS OUT /
消灯
③
不定
Below 1257 mV : 異常
Over 1257 mV : 正常
_STBY_LEDの処理→B
_POWER_LED1 : LIGHTS OUT /
消灯
_HEAT_DET_P(24pin)
(IN)
_HEAT_DET_1 (48pin)
_HEAT_DET_2 (42pin)
_HEAT_DET3 (43pin)
_HEAT_DET_4 (30pin)
(A/D)
A
B