Pioneer PD-J400T User Manual

[How
to
play
back
a
disc
in
test
mode]
In
test
mode,
since
the
servos
operate
independently,
playing
back
a
disc
requires
that
you
operate
the
keys
in
the
correct
order
to
close
the
servos.
Here
is
the
key
operation
sequence
for
playing
back
a
disc
in
test
mode.
PROGRAM
Lights
up
the
laser
diode
and
closes
the
focus
servo.
PLAY
/PAUSE
b>/fill
Starts
the
spindle
motor
and
closes
the
spindle
servo.
PLAY
/PAUSE
>/Hil
Closes
the
tracking
servo.
Li
Wait
at
least
2-3
seconds
between
each
of
these
operations.
1. Focus offset adjustment
@
Objective
Sets
the
DC
offset
for
the
focus
error
amp.
@
Symptom
when
out
of
The
player
does
not
focus
in
and
the
RF
signal
is
dirty.
adjustment
@
Measurement
instrument
|
Connect
the
oscilloscope
to
TP1,
Pin
@
Player
state
connections
6
(FCS
ERR).
[Settings] 5 mV/division @ Adjustment location
10 ms/division
DC mode
[Procedure]
Adjust
VR103
(FCS
OFS)
so
that
the
DC
voltage
at
TP1,
Pin
6
(FCS
ERR)
is
-50
+
50
mV.
28
Test mode, stopped
(just the Power switch on)
VR103 (FCS OFS)
None needed

Pioneer PD-J400T Specifications

General

Brand	Pioneer
Model	PD-J400T
Category	CD Player
Language	English