31
CDX-P1250
• Note :
This mechanisms is detects the height of the stage using slide-variable resistance.
To absorb dislocation of the stage height caused by differences in the mechanism and the CD core unit, adjustment
must be made for each CD-mechanism module using a variable resistor.
Normally, readjustment is not needed, as this has been adjusted at the factory. However, adjustment of elevation is
required according to the procedure explained below if an elevation error has occurred or if the CD core unit has
been removed.
• Purpose :
To adjust and confirm whether or not elevation operates correctly.
• Adjustment Method :
• Measuring Equlpment: Oscilloscope, One L.P.F.
• Measuring Points :
EREF, EPVO
• Setting :
Without a magazine in Test mode
With the mechanism placed upside-down (Place the CD mechanism module so that the CD
core unit is above.)
• Confirmation Procedure
1. Enter Test mode, then select Multi-CD player.
2. Press key 7 to enter Mechanism Test mode.
3. Press key 12 twice to specify the amount of movement.
6.2 ADJUSTMENT OF ELEVATION WHEN THE CD CORE UNIT HAS BEEN REMOVED
FOR MAINTENANCE
-
Adjustment When Error Code 60 is Displayed Because of Malfunctioning Elevation
TRACK
FUNCTION
'
"
TRACK
FUNCTION
72
00' 00"
EREF
EPVO
Oscilloscope
CD CORE UNIT
L.P.F.
47k
Ω
1
µ
F
Examples of display
TRACK
FUNCTION
72
00' 02"
TRACK
FUNCTION
72
00' 01"
The amount of movement
changes each time key 12 is
pressed.
maximum movement
i
Key 12
i
during movement
i
Key 12
i
minimum movement
TRACK
FUNCTION
72
00' 00"
i
i
Key 12
Summary of Contents for CDX-P1250
Page 6: ...6 CDX P1250 2 2 EXTERIOR ...
Page 8: ...8 CDX P1250 2 3 CD MECHANISM MODULE ...
Page 14: ...14 CDX P1250 1 2 3 4 1 2 3 4 D C B A A2 2 A 1 2 SYSTEM CONTROLLER EWmodel UC ESmodel ...
Page 22: ...22 CDX P1250 1 2 3 4 1 2 3 4 D C B A SIDE A B POWER UNIT B CN701 A CORD 4 2 POWER UNIT IP BUS ...
Page 23: ...23 CDX P1250 D C B A 1 2 3 4 1 2 3 4 B POWER UNIT B SIDE B ...
Page 25: ...25 CDX P1250 D C B A 1 2 3 4 1 2 3 4 E 4 5 MOTOR PCB MOTOR PCB E C ...
Page 30: ...30 CDX P1250 Grating waveform 45 0 75 60 30 90 Echt Xch 20mV div AC Fcht Ych 20mV div AC ...
Page 48: ...48 CDX P1250 7 3 BLOCK DIAGRAM A C D E ...
Page 49: ...49 CDX P1250 B ...