Technics SL-P200 Service Manual

PLL ADJUSMENT
1.Connect CH1 of the oscilloscope to the LINE OUT
terminal (either of Lch or Rch) and ground.
2.Set the test disc (SZZP1054C) and turn ON the power
switch of the player.(Refer to page 11.)
3.Play Track No.6 (wedge 0.7mm) of the test disc.
4.Check the waveform displayed on the oscilloscope and
adjust VR501 in the following steps.
Step 1.Turn VR501 clockwise slowly and observe the
point at which the waveform on the oscilloscope
begins to be disturbed.
Step 2.Turn VR501 counterclockwise stowly and observe
the point at which the waveform on_ the
oscilloscope begins to be disturbed.
Step 3.Set VR501 in the middle between the points
observed in the above steps ”1” and” 2”.
Noise started to appear in output sound with
_¢ VA501 turned counterclockwise.
2
wi
‘\ Noise started to appear in output sound with
VR501 turned clockwise.
Final setting point.
CHECK OF PLAY OPERATION AFTER ADJUSTMENT
Check of skip search
1.Play an ordinary disc.
2.Press the skip button and verify skip search operation
(forward and reverse).
Check of manual search
1.Play an ordinary disc.
2.Press the manual search button and verify that smooth
manual search can be performed at low and high speeds
(forward and reverse).
OPTICAL PICKUP ADJUSTMENT
Measuring Instruments and Special Tools
@ Tow-channel oscilloscope (with trigger)
of 30MHz or over
@ Test discs
Test disc (SZZP1014F) old or new type
Inspection test disc (SZZP1054C)
Uneven disc (SZZP1056C)
Adjustment Procedure
@ If the optical pickup and spindle motor are replaced ,
adjust it according to the following procedure.
Step 1:Make the temporary of
each VR.(Refer to page 13.)
Step 2:Turntable height adjustment.
(Refer to page 16.)
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Check of playability
1.Play the test disc (SZZP1054C).
2.Piay the track No.6 (wedge 0.7mm) and verify that there
is no skip sound or noise.
3.Play the track No.13 (black dot 0.7mm) and verify that
there is no skip sound or noise.
@ Hexagonal wrench (2.0mm)
e@ Screw lock paint (RZZ0L01)
@ Hexagonal wrench (1.27mm)
@Feeler gauge (RZZ0297)
@ Filter (Refer to page 11)
Step 3:Mechanical adjustment.
(Refer to page 16.)
Step 4:Electrical adjustment.
(Refer to page 12.)

Technics SL-P200 Specifications

General

Brand	Technics
Model	SL-P200
Category	CD Player
Language	English