Marantz DR2100 Service Manual page 14

CD-DA DISC LOADED
NO
DISC
DETECTION &
READING?
YES
NO
DISPLAY:
"CD" &
T.O.C. INFO?
YES
PRESS <PLAY>
ANALOG NO
AUDIO
OUT?
YES
YES
DISTORTION?
NO
CHECK:
NO
HEADPHONE?
YES
CHECK:
DIGITAL
NO
AUDIO
OUT?
YES
PLAY BACK OF CD-DA
DISCS OK
CHECK:
WIRING
POWER SUPPLY VOLTAGES
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
CHECK:
DISC: DIRT, SCRATCHES, DAMAGED...
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
CHECK:
AUDIO CONNECTIONS & CABLES
REAR TERMINAL BOARD
W651 CONNECTION
FLEX CONNECTION
+5V (pin 8 conn. JJ01)
KILL VOLTAGE (pin 7 conn. JJ01):
-8V DURING PLAY
KILL TRANSISTORS QN51 - QN52
PLAY AUDIO SIGNALS DISC TRACK 15:
SIGNAL OF 5.4 VPP ON PINS 1 AND 3 OF CONN.
JJ02
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
CHECK:
AUDIO CONNECTIONS & CABLES
REAR TERMINAL BOARD
FLEX CONNECTION
+5V (pin 8 conn. JJ01)
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
WIRING OF HEADPHONE/IR BOARD
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
AUDIO CONNECTIONS & CABLES
REAR TERMINAL BOARD
FLEX CONNECTION
+5V (pin 8 conn. JJ01)
DIGITAL OUT TRANSFORMER LT02, Q311
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
Figure 7-2
CL 96532076_017.eps
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