Pioneer PD-J400T User Manual

__ PD-J500T_
8. ADJUSTMENTS
1. Adjustment Methods
If
a
disc
player
is
adjusted
incorrectly
or
inadequately,
it
may
malfunction
or
not
work
at
all
even
though
there
is
nothing
at
all
wrong
with
the
pickup or
the
circuitry. Adjust
correctly
following
the adjustment
procedure.
1-1 Adjustment items/verification items and order
= Focus offset adjustment TP1, Pin 6 (FCS. ERR) VR103 (FCS. OFS)
Grating adjustment TP1, Pin 2 (TRK. ERR) Grating adjustment slit
Tracking error balance adjustment TP1, Pin 2 (TRK. ERR) VR102 (TRK. BAL)
Pickup radial/ Radial tilt adjustment screw, Tangential
| os | RF level adjustment TP1, Pin 1 (RF) VRi (RF level)
TP1, Pin 5 (FCS. IN)
TP1, Pin 6 (FCS. ERR)
: eer TP1, Pin 3 (TRK. IN)
Tracking servo loop gain adjustment TP1, Pin 2 (TRK. ERR) VR151 (TRK. GAN)
ee Focus error signal verification TP1, Pin 6 (FCS, ERR) L———-
@ Abbreviation table
FCS. ERR : Focus Error
FCS. OFS _ : Focus Offset
TRK. ERR : Tracking Error
TRK. BAL : Tracking Balance
FCS.GAN_ : Focus Gain
TRK. GAN : Tracking Gain
FCS. IN : Focus In
TRK.IN — : Tracking In
Focus servo loop gain adjustment VR152 (FCS, GAN)
1-2 Measuring instruments and tools
Dual trace oscilloscope (10:1 probe)
Low-frequency oscillator
Test disc (YEDS-7)
12-cm disc (with at least about 70 minutes of recording)
Low-pass filter (39 kQ + 0.001 uF)
Resistor (100 kQ )
Hex. wrench (L-Shaped type, size: 1.5mm)
Standard tools
9: SED A Re Noe
25

Pioneer PD-J400T Specifications

General

Brand	Pioneer
Model	PD-J400T
Category	CD Player
Language	English