Circuit Description; Flow Chart For Disc Starting - Kenwood LVD-K9200 Service Manual

CIRCUIT DESCRIPTION
1. Flow Chart for Disc Starting
Tray open state
PLAY key ON
Close the tray and
move the loading
motor to the position
of LOSW (Side A)
Pickup moves
inwards at LD switch
ON in high speed
mode
Pickup moves
inwards at LD switch
OFF in high speed
mode
NO
CD/CDV
(a) YES
LOD
To next page Focus : ON
Disc motor
accelerate
*1 from page 13.
Count FG
time of 1-1/2
turning of disc
TILT servo ON
Unctamp check
20cm or 30cm
dise distinction
Disc motor free run
if disc size is 20cm
160ms WAIT
Disc motor accelerate
if disc size is 20cm
Pickup moves
inwards for 100ms
in middie speed
W
*2 from page 13.
YES
Tracking servo : ON
Disc motor servo : ON
100ms NO
servo lock
YES
=
c=
ca
<>
Feed servo : ON
Read 24 bit data
Read the OQ code
for 100ms
NO
Qcode ?
YES Search the CH-APT.O
Pickup moves
inwards in
middle speed.
*On the way
{for 300ms) feed drive
stops when servo is
unlocked. Then, feed
drive starts when
servo is locked
in TOC reading,
pickup jumps per
128 tracks inwards
when it has
program area
Search the CHAPT.O