6-13
Start
Mechanical or Electrical trouble ?
Nothing in action in Power-On ?
BU/Main PWB/HP PWB
dependent ?
(check by swapping BU or PWBs.)
Power-On Reset actions Completes or
Failed/action NG ?
SCSI command execution
communication OK or NG ?
(check with any SCSI command)
Read Operation
End
OK
OK
Completed
Main PWB dependent
Proceeding Adjustment Action
Electrical
Mechanical
No action
BU dependent
HP PWB dependent
Failed /NG
NG
Access Time NG
Read Data Error
IC202 (CDROM/SCSI I/F IC) failure
IC203 (buffer RAM) failure
IC105 (CD DSP/servo IC) failure
Motor Driver ICs failure
IC202 (CDROM/SCSI I/F IC) failure
IC207 (Flash-ROM) failure
Refer to Flowchart (2)-Power-on Reset Actions
IC105 (CD DSP/servo IC) failure
IC101, IC107 (RF Amp IC) failure
Drive ICs failure
BU/OP checking/Replace BU
HP PWB checking
IC201 (CPU) failure
IC205 (gate-array) failure
IC207 (Flash-ROM) failure
Mechanical Checking/Repairing
6-3-4-2. Flowchart
Note:
These flowchart is described assuming that IC failure causes any trouble.
Flowchart (1) Repairing/Trouble Shooting-General
Summary of Contents for CDL1100
Page 8: ...6 7 Power Supply Power Cord SONY Test Disc YEDS 18 CDL1100 CDM 47 Controller Function check ...
Page 44: ...CDL1100 CD ROM DRIVE CDM 47 2 2 SECTION 7 23 7 24 ...
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