Marantz SR6004 Service Manual page 23

Normal 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 (IC88 : 4pin)
FLRB_ON (IC88 : 5pin)
SURR_ON (IC88 : 6pin)
SBLR_ON (IC88 : 7pin)
(OUT)
ch MUTE
EACH CHANNEL MUTE
(OUT)
_STAND BY LED (135pin)
(OUT)
_STAND BY LED (135pin)
(OUT)
3.5sec
2sec
500msec
if =H if =H
if =L if =L
AC POWER SUPPLY: POWER ON
INCONSTANT
Hi Normal
INCONSTANT
Lo Abnormal
Lo
Hi Normal
Lo Abnormal
+5VDD=OK
Lo SPEAKER OFF
Lo MUTE ON
LED
STANDBY LED:
LIGHTS OUT
Flickering (every 125msec)
LED
STANDBY LED:
LIGHTS OUT
Flickering (every 500msec)
21
_STAND BY(OUT):
Lo
STANDBY (OUT): If it detects in order of
after that.
if =H if =H
if =L if =L
Hi: Normal
Lo: Abnormal
Lo
Hi: Normal
Lo: Abnormal
Lo
(125msec )
(500msec )
Lo
and Lo is detected, it will be made Lo
_STAND BY LED
How to respond to the
flickering
__STANDBY LED A
_STAND BY LED
How to respond to the
flickering
_STANDBY LED B
_STAND BY LED
How to respond to the
flickering
__STANDBY LED A
_STAND BY LED
How to respond to the
flickering
_STANDBY LED B
A
B
A
B