26
D-A03
MD power ON time chart
Power on sequence for the MD unit (when resetting or starting it 1 : no disc)
(System side) (System side)
Set the system microcomputer to "H" by this point Set the system microcomputer to "H" by this point
Test mode command transmission period
Test mode command transmission period
(Until CMD RCV received)
(Until CMD RCV received)
Power failure recovery interruption input and 3.2V application to the MD unit. Power failure recovery interruption input and 3.2V application to the MD unit.
POWER-ON
CN1501 17 , 18
DVDD
CN1401 1 , 2
TRY+/TRY
-
CN1501 4
BACK UP
TP1800
3.2V
CN1501 7
MD-ST
IC1401 15
MCCK
IC1401 12
RESET
CN1501 5
PDOWN
CN1501 19
PCONTO
IC1401 80
XRST
CN1501 12
DSTB
CN1501 8
DSCK
CN1501 6
RESET
(100ms)
(10ms)
3.2ms
3.2ms
13.6ms
1.5ms
30ms±2ms
Power on sequence for the MD unit
(When resetting or starting it 2 : DISC IN or disc existence)
As quick as possible
POWER-ON
or DISC IN
CN1501 17 , 18
DVDD
CN1401 1 , 2
TRY+/TRY
-
CN1501 4
BACK UP
TP1800
3.2V
CN1501 7
MD-ST
IC1401 15
MCCK
IC1401 12
RESET
CN1501 5
PDOWN
CN1501 19
PCONTO
IC1401 80
XRST
CN1501 12
DSTB
CN1501 8
DSCK
CN1501 6
RESET
(100ms)
(10ms)
3.2ms
600ms~(About 1200MS+600MS)
62ms
3.2ms
13.6ms
1.5ms
30ms±2ms
DISC existence:
Mechanism positioning
DISC-IN : LOADING operation