Marantz 74 CDR630/02M, Service Manual

Page: 16 / 40

1-14
MAIN BOARD TEST
Display shows blinking
“D -----” during the test
BASIC ENGINE TEST
Display shows “B -----”
during the test
Display shows blinking:
“BUSY”
during the test.
DC ERASE
(erasement of complete disc)
Load CD-RW disc
Press
<ERASE> + <RECORD>
simultaneously and switch
power on
DISPLAY TEST
All segments are blinking at a
frequency of 1Hz.
To end test, switch power off.
switch power off.
KEYBOARD/REMOTE TEST
Display shows name of
pressed key on keyboard or
remote control.
Display shows:
“ PASSED”
when the erase function is
completed.
Display shows:
“ ER mm:ss”
during the erase function.
mm :remaining minutes
ss
:remaining seconds
TOTAL and REM are also
illuminated
ELECTRICAL SERVICE
DIAGNOSTICS
(advice for replacement units)
Load CDDA disc(SBC444A)
Press<PLAY> + <NEXT>
simultaneously and switch
power on
DEALER DIAGNOSTICS
(status of player)
Press<PLAY> + <STOP>
simultaneously and switch
power on
If power ON,
switch power OFF
Set OK?
to end test, switch power off
set displays:
“ PASSED”
set displays:
“ERROR”
no
yes
<
NEXT
>
<
NEXT
>
<
NEXT
>
Test OK?
set displays:
“BERR n”
n =
1 : Communication bus error
2 : Basic Engine self test error
3 : Disc test error
no
yes
Test OK?
set displays:
“DERR n”
n =
1 : RAM test error
2 : ROM test error
3 : EEPROM test error
4 : DAIO test error
5 : GDIN test error
no
yes
1.7 SERVICE TEST PROGRAM