Marantz CDR631 Service Manual

10
Figure 6-1
6. Faultfinding Trees
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 & TRAFO
⇒
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
PRESS <DISPLAY>
• 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

Marantz CDR631 Specifications

General

Brand	Marantz
Model	CDR631
Category	Recording Equipment
Language	English