11
1.4.2 CD-BACKUP mode Analyze
Step 2
Power on
use surveying
instruments to check
voltage
measure voltage
whether correct
fixed question:
check power circuit
NO
use oscilloscope to
measure X1 whether
correct shock
YES
fixed question:
check crystal circuit
NO
LCD Display whether
correct
fixed question:
check LCD / MPU /
CPLD...ect circuit
NO
YES
fixed question:
check MPU relate circuit
System Boot
whether correct
YES
NO
System Check
whether correct
fixed question:
check IDE device relate
circuit
YES
NO
Finish repair
Содержание CC0
Страница 10: ...6 1 3 Component Package U3 SIN 0002A U2 39SF010 70...
Страница 11: ...7 U1 GLT44016 28J4 U7 2310700003...
Страница 12: ...8 U2 CY7C68300A U5 24LC02N U9 U10 74CBT3384A...
Страница 13: ...9 U8 APL1117 3 3V U11 BA17805 5V Q3 Q5 2SB1427 Q6 Q7 2SD1898 Q2 Q4 2N3904 Q1 2N3906...
Страница 23: ...Confidential Alesis Service Manual 8 31 0142 A ALESIS CD TWIN CC0 SCHEMATIC AND PCB FILES...
Страница 31: ...26 3 4 Key Parts of CD RW and CD ROM Assy MP 715 ASSY M 226 ASSY...
Страница 32: ...27 3 5 Up Case Complete Assy 18 28 29 30 31 32 20 19 16 24 21 22 22 27 23 16 26 20 17 25 22 UP CASE ASSY M2 1...
Страница 33: ...Confidential Alesis Service Manual 8 31 0142 A ALESIS CD TWIN CC0 ECN HISTORY...
Страница 34: ...Confidential Alesis Service Manual 8 31 0142 A ALESIS CD TWIN CC0 BOM...