Rotel RDV-985 Technical Manual page 17

7.Servo volume
Press
"OPEN/CLOSE"
key
Is the opening
N
operation of
TRAY normal?
Y
After "FL" displays
"Close", is "Reading"
displayed?
Y
Does the DISC
rotate ?
Y
N
Does pick-up
lens move up
and down?
Y
Does the
Y
displayed in FL
is "NO DISC"?
N
Is drawing in
FOCUS normal ?
FE
OFF
ON
(It is NG when
tick tack retrying.)
Y
Is drawing in
TRACKING normal ?
TE
OFF
ON
Does IC201"39"
(/TRON) become "L" ?
Y
Is the shift to
spindle CLV OK ?
Does IC201"37"
(PLLOK) become "H" ?
Y
to A
to OPEN/CLOSE
Operation Section
N
N
(1)Spindle start error
Does CN101"4"
(SWTRV) become 0V ?
Y
N
(3) Traverse
moving NG
(2) Disc detection,
Distinction error
N
(4) Focus ON NG
N
(8) Tracking ON NG
N
(14)Spindle CLV NG
from A
*only two layer
disc (DVD)
Is the jump between
layers OK?
FE
LO LI
Y
Was information on
the disk obtained?
(In case of NG, disc
eject at tray open.)
Y
Can you reproduce ?
Y
OK !
N
(16) Jump between
layers NG
N
(15) Address
read NG
N
(9) Checkpoint
according to error