Marantz SR6004 Service Manual page 22

Check 4
• TIMING CHART
Normal operation when the power is turned on
_STAND BY (138pin)
(OUT)
_PDOWN (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)
各ch MUTE
EACH CHANNEL MUTE
(OUT)
_STAND BY LED (135pin)
(OUT)
For the product to start operating normally when the power
is turned on, the circuit connected to each input port of _P
DOWN, _5V DOWN, _P CUR FAIL, _P AMP FAIL and _P
LINE FAIL needs to be operating normally.
Check 4
･ TIMING CHART
電源 ON 時の正常動作
3.5sec
2sec
_STAND BY CANCEL
_STAND BY 解除
AC POWER SUPPLY: POWER ON
不定
INCONSTANT
P_AMP=OK
不定
After 2sec, the detection start
INCONSTANT
2sec後、検出開始
P_CUR=OK
500msec
After 500msec, the detection start
500msec後、検出開始
+5VDD=OK
SPEAKER OFF
MUTE ON
STANDBY LED: LIGHTS OUT
STAND BYLED
電源 ON 時に製品が通常動作を開始するためには、上図の様
な Timing で ̲P DOWN, ̲5V DOWN̲P CUR FAIL, ̲P
AMPFAIL, ̲P LINE FAIL の各入力 Port で接続されている回
路が正常動作している必要があります。
20
7sec
Hi P_LINE=OK
After 3.5sec, the detection start
3.5sec後、検出開始