Philips CDR779 Service Manual page 51

CD-R DISC LOADED
NO
DISC
DETECTION &
READING?
YES
DISPLAY: NO
"CD R" &
OPC INFO?
YES
CD-R DISC PARTIALLY
RECORDED OR EMPTY
START MANUAL
RECORDING FROM
ANALOG SOURCE
NO
LEVEL
ADJUSTABLE?
YES
START RECORDING
FROM DIGITAL
SOURCE
NO
DIGITAL IN?
OPTICAL IN?
YES
NO
RECORDING
SUCCESSFUL?
YES
SET OK
Faultfinding trees
CHECK:
•
WIRING
•
POWER SUPPLY VOLTAGES
•
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
DISPLAY: NO
"CD" &
T.O.C. INFO?
YES
FINALISED CD-R DISC
LOADED
SEE CD-DA DISC
FAULT FINDING
CHECK:
•
AUDIO CONNECTIONS & CABLES
•
•
DISPLAY BOARD (SEE FAULT FINDING GUIDE DISPLAY BOARD)
⇒
EASY JOG KNOB
⇒ I 2 C COMMUNICATION
⇒
ELECTRICAL SERVICE DIAGNOSTICS:
KEYBOARD TEST
•
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
CHECK:
•
AUDIO CONNECTIONS & CABLES
•
I/O BOARD
⇒
FLEX CONNECTION
⇒
+5V (pin 8 conn. 1000)
⇒
IC7005, OPTICAL RECEIVER 6000
•
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
Figure 7-3
CDR779
CHECK:
•
DISC: DIRT, SCRATCHES, DAMAGED...
•
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
7. GB 51
CL 96532076_018.eps
290799