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Power on
Check the
icku
p
p
NO
=
'
To tracking
!
' section.
To audio
circuit.
| To front section.
b
'an an oe ie
Can it search to
each track
correctly?
« NO| keys on the
Does the FL
Does
t
NO
_y{ Tofront
Heras
» section.
normally?
YES
Can the disc
tray be moved
in and out using
the OPEN/
CLOSE button?
YES
NO
| Toloading
7 section.
Does the
indications on
the FL display
show-
- --when
the disc tray is
closed?
YES
YES
YES
.
Is the tracking loop
Can it play the
applied?
first track
TP7(TE)
YES
YES
;
Vv
Is the RF
waveform
Cana 1V/div.,
normal?
0.5sec. /div
YES
waveform be
observed?
| To tracking
!
section.
YES
Canan
instantaneous
1 Vpp waveform
be observed at
RF TP3?
Are all operation
i Tospindie
section.
I
front panel and
i
eee
Jj
the FL display
correct?
YES
Does the pickup
lens move
up
and down with
the tray closed?
YES
Does the
iaser
light for
approximately 8
seconds after the
tray is
closed?(Check the we
laser by power
meter)
YES
ls focus applied
no
for
approximately 8
seconds after
the tray is
closed? (Check
the lens
movement
visually.)
YES
| Tospindle 4
1
section.
1
J
| Tofocus. 1
! section.
I
Lee ee
eee
ee d
XL-V 163TN/V164BK
XL-V263TN/V264BK
The following shows the status of the various circuits from
turning on the power to the start of disc play
ee
eee
ee
ee 7
t
eee
ee ee ae ees om 2
NO
YES
To focus
1
section.
'
Is there +5V at
pin6 of P501 for
approximately 8
seconds after the
tray isclosed ?
YES
Check the
pickup and the
connections
from P601 to
the pickup.
Check the con-
nections
between IC201
and P601.
(No.20329) 1-31
R R e ie Ne RE TRA
SPO
OF
AER ES
co Se Te
Ser See
RE RO
S
ee ¥ e
sinaa
ab
eh ls
eli
aca
Rah
ie a i
a a a a a
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