Read Sharp SD-CX1 (serv.man5) Service Manual online
SD-CX1H
– 36 –
Power failure recovery interruption input and 3.2V application to
the MD unit.
POWER-ON
DVDD
CN1501
17 , 18
TRY+/TRY-
CN1401
1 , 2
BACK UP
CN1501
4
MD-ST
TP1800
3.2V
CN1501
7
MCCK
IC1401
15
RESET
IC1401
12
XRST
IC1401
80
RESET
CN1501
6
PDOWN
CN1501
5
PCONTO
CN1501
19
DSTB
CN1501
12
DSCK
CN1501 8
Test mode command transmission period
(100ms)
1.5ms
30ms
±
2ms
3.2ms
3.2ms
13.6ms
(10ms)
MD power ON time chart
Power on sequence for the MD unit (when resetting or starting it 1 : no disc )
(System side)
(Until CMD RCV received)
As quick as possible
POWER-ON
or DISC IN
DVDD
CN1501
17 , 18
TRY+/TRY-
CN1401
1 , 2
BACK UP
CN1501
4
MD-ST
TP1800
3.2V
CN1501
7
MCCK
IC1401
15
RESET
IC1401
12
XRST
IC1401
80
RESET
CN1501
6
PDOWN
CN1501
5
PCONTO
CN1501
19
DSTB
CN1501
12
DSCK
CN1501 8
(System side)
(100ms)
1.5ms
Disc existence: Mechanism positioning
DISC-IN: LOADING operation
30ms
±
2ms
3.2ms
62ms
13.6ms
600ms~ (About 1200ms+600ms)
3.2ms
(10ms)
(when resetting or starting it 2 : DISC IN or disc existence )
Power failure recovery interruption input and 3.2V application to the
MD unit.
Test mode command transmission period
(Until CMD RCV received)
Power on sequence for the MD unit
