Marantz MAR770 - Manual (Page 14)

12
Figure 7-3
FINALISED CD-R DISC
LOADED
SET OK
CD-R DISC PARTIALLY
RECORDED OR EMPTY
START RECORDING
FROM DIGITAL
SOURCE
START MANUAL
RECORDING FROM
ANALOG SOURCE
CD-R DISC LOADED
LEVEL
ADJUSTABLE?
NO
YES
DIGITAL IN?
OPTICAL IN?
NO
YES
RECORDING
SUCCESSFUL?
NO
YES
NO
YES
DISPLAY:
“CD R” &
OPC INFO?
YES
DISC
DETECTION &
READING?
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
"DERRn"
OR "BERRn" ERROR OCCURS
CHECK:
DISC: DIRT, SCRATCHES, DAMAGED...
NO
POWER SUPPLY VOLTAGES
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
"DERRn"
OR "BERRn" ERROR OCCURS
CHECK:
WIRING
NO
YES
DISPLAY:
“CD” &
T.O.C. INFO?
SEE CD-DA DISC
FAULT FINDING
CHECK:
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
"DERRn"
OR "BERRn" ERROR OCCURS
DISPLAY BOARD (SEE FAULT FINDING GUIDE DISPLAY BOARD)
EASY JOG KNOB
I2C COMMUNICATION
ELECTRICAL SERVICE DIAGNOSTICS:
KEYBOARD TEST
AUDIO CONNECTIONS & CABLES
CHECK:
Q311, OPTICAL RECEIVER J301
AUDIO CONNECTIONS & CABLES
I/O BOARD
FLEX CONNECTION
+5V (pin 8 conn. JJ01)
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
"DERRn"
OR "BERRn" ERROR OCCURS
CHECK:
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
"DERRn"
OR "BERRn" ERROR OCCURS
CL 96532076_018.eps
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