Grundig CDP75 Bedienungsanleitung Seite 18

Allgemeiner Teil / General Section
CHECK
RADIAL
TRACKING
enter
service program
"SERVO TEST"
N
slide
movement ?
Y
servo signals
on slide motor
?
Y
connections
to/from CD-drive
OK ?
Y
enter replace
CD-drive
service program
"RADIAL TEST"
N
tracking ?
Y
servo signals
on track servo
?
Y
connections
N
eye-pattern
to/from CD-drive
OK ?
OK ?
Y Y
check replace
CHECK
CD6 7830 CD-drive
LIGHTPATH
replace
CD-drive
1 - 21
CDP 75 / CDP 110
N
N servo signals
N
on p.37 of 7950
?
Y
repair check check
connections servo driver 7950 DSIC2 7801
N
servo signals
N N
on p.42 of 7950
?
Y
repair check check
connections servo driver 7950 DSIC2 7801
GRUNDIG Service
Allgemeiner Teil / General Section
FUNCTIONAL
TEST
all previous N
tests passed
?
start-over
Y
drive&servo checks
mechanical Y
obstruction ?
remove
N
obstruction
set sensitive
Y
to temperature
?
localize temperature
N
sensitive part&repair
replace
CD-drive
still errors
Y
during playback
?
N
replace set
SET REPAIRED
1 - 22
CDP 75 / CDP 110
Power off (stand-by) Start-up procedure for ext.DC supply,
voltages +A,+6,+1.2, no accu inserted, hold-switch in off pos.,
+µP,vreg switched on resume-mode off, CD-lid closed.
PLAY N
pressed ?
Y
µP switches
DC/DC converter on
(Pow-on=L)
µP sends
power-on reset
(PoRes=H)
µP sends
parameter/settings
to DSIC2 and CD6
µP sends
command to DSIC2:
"move slide inside"
inner switch N
closed within
4sec ?
Y
µP sends
command to DSIC2:
"move slide outside"
inner switch
N
open within
160msec ?
Y
µP sends
command to DSIC2:
"switch laser on"
µP sends
command to DSIC2:
"slide servo off"
µP sends
command to DSIC2:
"focus servo on"
focus
N
found within
8sec ?
Y
µP sends
command to CD6:
"disc motor to 75%"
disc motor at
N
75% of nom.speed
within 2sec ?
Y
µP sends
command to DSIC2:
"radial loop on"
subcode
N
(TOC) found
within 4sec ?
Y
release MUTE
display shows
"Error"
PLAY-MODE
start-up stopped
GRUNDIG Service