Read Sharp SD-NX10 (serv.man6) Service Manual online
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SD-NX10H
Power-on sequence for the MD unit (when resetting or starting it
2
: DISC IN or disc existence)
Power failure recovery interruption input and 3.2V application to the MD unit
(100ms)
600ms - (approx. 1200ms+600ms)
1.5ms
30ms
±
2ms
3.2ms
62ms
3.2ms
(10ms)
Set the system microcomputer to "H" by this point.
13.6ms
Test mode command transmission period (Until CMD RCV received)
(System side)
POWER-ON
CN1501 ,
CN1501
17
4
18
DVDD
CN1401 ,
1
2
TRY+/TRY–
BACK UP
CN1501 7
MD-ST
CN1501 6
RESET
CN1501 5
PDOWN
CN1501 8
DSCK
CN1501 19
PCONT0
CN1501 12
DSTB
IC1401 15
MCCK
IC1401 12
RESET
IC1401 80
XRST
TP1800
3.2V
As quick as possible
Disc existence: Mechanism
positioning
positioning
DISC-IN: LOADING operation
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