Marantz MAR770 CD-RW Disc Loaded, Wiring Power Supply Voltages Electrical Service Diagnostics

CD-RW DISC LOADED

DISCNO DETECTION &

READING?

YES

CHECK:

WIRING

POWER SUPPLY VOLTAGES

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

DISPLAY: NO

“CD RW” &

OPC INFO?

YES

CD-RW DISC PARTIALLY RECORDED OR EMPTY

DISPLAY: NO “CD” &

T.O.C. INFO?

YES

FINALISED CD-RW DISC

LOADED

SEE CD-DA DISC

FAULT FINDING

CHECK:

DISC: DIRT, SCRATCHES, DAMAGED...

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

START ERASING OF LAST RECORDED TRACK

ERASING NO SUCCESSFUL?

YES

SET OK

CHECK:

ELECTRICAL SERVICE DIAGNOSTICS:

REPLACE CDR MODULE IF "DERRn"

OR "BERRn" ERROR OCCURS

IF DISC CORRUPTED TRY DC ERASE

CL 96532076_019.eps 290799

Figure 7-4

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