Cd-R Disc Loaded - Philips CDR775 Service Manual

Faultfinding trees

CD-R DISC LOADED

DISC
DETECTION &
READING?
YES
DISPLAY:
" CD R" &
OPC INFO?
YES
CD-R DISC PARTIALLY
RECORDED OR EMPTY
START MANUAL
RECORDING FROM
ANALOG SOURCE
LEVEL
ADJUSTABLE?
YES
START RECORDING
FROM DIGITAL
SOURCE
DIGITAL IN?
OPTICAL IN?
YES
RECORDING
SUCCESSFUL?
YES
SET OK
CHECK:
•
NO
WIRING
•
POWER SUPPLY VOLTAGES
•
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
NO
DISPLAY:
" CD" &
T.O.C. INFO?
YES
FINALISED CD-R DISC
LOADED
SEE CD-DA DISC
FAULT FINDING
CHECK:
•
AUDIO CONNECTIONS & CABLES
NO
•
•
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
NO
•
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
NO
CHECK:
•
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
Figure 7-3
CDR775
CHECK:
NO
•
DISC: DIRT, SCRATCHES, DAMAGED...
•
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF "DERRn"
OR "BERRn" ERROR OCCURS
7. GB 45
CL 96532076_018.eps
290799