Marantz DR17 - Faultfinding Guide

1-13
NO DISC
POWER ON
PRESS
OPEN/CLOSE
SEE CDDA DISC
FAULTFINDING
SEE CD-R DISC
FAULTFINDING
SEE CD-RW DISC
FAULTFINDING
LOAD DISC
PRESS OPEN/CLOSE
DISC
DETECTION
STARTS?
DISPLAY?
DISPLAY
SHOWS
“
NO DISC
”?
CDDA DISC?
CHECK:
POWER SUPPLY
MAINS SWITCH SH01
FUSES
MAINS TRANSFORMER
VOLTAGES AC, DC, FTD
WIRING
DISPLAY
POWER SUPPLY VOLTAGES
CLOCK FREQUENCY 8MHz
CONTROL LINES
WIRING
ELECTRICAL SERVICE DIAGNOSTICS:
DISPLAY TEST
SEE MEASUREMENTS DISPLAY
DISPLAY SHOWS BLINKING “
SERVICE”
CHECK:
POWER SUPPLY VOLTAGES -12V, -8V
ELECTRICAL SERVICE DIAGNOSTICS:
REPLACE CDR MODULE IF ERROR OCCURS
CHECK:
ELECTRICAL SERVICE DIAGNOSTICS:
KEYBOARD TEST: OPEN/CLOSE SWITCH ON
DISPLAY BOARD.
IF OK, REPLACE CDR MODULE
TRAY?
CD-R DISC?
NONO
NO
NO
NO
NO
YES
YESYES
YES
YES
YES
1.7 FAULTFINDING GUIDE