Filter
Top Products
10
7. Faultfinding trees
7.1 CDR-Module
Figure 7-1
NO DISC LOADED
SWITCH ON POWER
PRESS
<OPEN/CLOSE>
SEE CD-DA DISC
FAULT FINDING
SEE CD-R DISC
FAULT FINDING
SEE CD-RW DISC
FAULT FINDING
INSERT DISC
PRESS <OPEN/CLOSE>
DISPLAY?
DISPLAY:
"INSERT DISC"
CD-DA DISC
LOADED?
CHECK:
POWER SUPPLY (SEE FAULT FINDING GUIDE PSU)
WIRING
ON/OFF SWITCH
FUSES
VOLTAGES
DISPLAY (SEE FAULT FINDING GUIDE DISPLAY BOARD)
WIRING
CONTROL SIGNALS
CLOCK SIGNAL 8MHz
SUPPLY VOLTAGES
ELECTRICAL SERVICE DIAGNOSTICS:
DISPLAY TEST, KEYBOARD TEST
POWER SUPPLY VOLTAGES
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF
"DERRn"
OR
"BERRn"
ERROR OCCURS
CHECK:
MECHANICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF ERROR OCCURS
TRAY?
CD-R DISC
LOADED?
NONO
NO
NO
NO
YES
YESYES
YES
YES
CD-RW DISC
LOADED?
YES
MAINS, MAINS CABLE
CHECK:
STANDBY LED
KEYBOARD
WIRING
DISPLAY BOARD (SEE FAULT FINDING GUIDE DISPLAY BOARD)
WIRING
CONTROL SIGNALS
CLOCK SIGNAL 8MHz
SUPPLY VOLTAGES
ELECTRICAL SERVICE DIAGNOSTICS:
DISPLAY TEST, KEYBOARD TEST
KEYBOARD
CL 96532076_016.eps
290799