Sony MDP-440 MDP-640D Service Manual page 96

1-6-2. CD Servo System Adjustment
1. RD Adjustment
Mode Pause
Signal Track No, ?. YEDS18
MD adjustment cable
Measurement Point | CHI: [E terminal?
CH2 : (F terminal?
Measuring Equipment | Oseilloscope
Adjusting Element RD Cam (MD)
Specified Value 'A: Bs10:1
Note: 1) Turn off the monitor TV switch (o prevent
a noise,
2) Long continuation of the TRKG servo off
state causes the spindle motor to stop.
Note
Adjustment method =
}) Play back the track No, 1 and select PAUSE mode.
2) Turn the thread servo off, (MD adjustment casle
SLED SW OFF)
3) Turn the tracking servo off, (MD adjustment
TRKG SW OFF)
4) Turn RD eam an the MD and adjust so that i:
becothes as a straight line as poss'ble.
te
F (in D of CNIOE)
Fig? 11
8V-33 board (CONDUCTOR SIDE)
8V-23 BOARD
re
Ticoithe SS
hexagonal wrerch,
Fig. 7-12.
2. CD Focus Balanos Adjustment (SV-33 Board)
Mode
Playback
Signal
Track No, 1, YEDS-18
Measurement Point
MD adjustment cable
(RF (CD} OUT)
(Pin © of CNLO8)
Measuring Zquipment Oscilloscope
'Adjusting Element RVIO2
'Specified Value Maximum amplitude
Adjustment method
1) Play back the track No, 1
2) Adjust vith RV103 for maximum Jevel,
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