TROUBLE SHOOTING
(DVD - ROM MECHANISM)Does disc rotate?Yes No
Is laser luminescence No | Check the socket between PCB and MECHANISM | ||||
performed? |
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| (CS1101 ,CS1301, CS1302 and CS1303) | ||
| Yes | Check laser drive circuit | |||
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| (Q1102 and Q1103) | ||||
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| Check inside SW for PICK UP | |
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| Check feed motor circuit (IC1102) | |
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| Check 3.3V power supply circuit | |
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| (IC1103, IC1104 and Q1101) | |
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| Check laser PICK UP | |
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Check RF AMP IC(IC1101) |
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Check DSP IC(IC1201) |
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Check SPINDLE MOTOR |
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Is a map displayed? | No | Check I/F socket(CS1201) |
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| Check ATAPII/F IC(IC1250) |
Yes |
| Check DRAM(IC1251) |
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| Check microcomputer IC(IC1151) |
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| Check DSP IC(IC1201) |
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| Check DRAM(IC1202) |
Good product |
| Check feed motor pulse count circuit(IC1105) |
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