Technics SLDV-250 Service manual
Service Manual
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ORDER NO.AD0107130C8
DVD/Video CD/CD changer
l SL-DV250
Colour
(S)....................Silver
Areas
EE....................Russia.
GCS.................Southeast Asia.
GN....................Oceania
Brand name
Technics...(EE, GN) areas
Panasonic...(GCS) area
System:SC-DV250
Because of unique interconnecting cables, when a
component requires service, send or bring in the entire
system.
Note: Refer to the service manual for Model No.SA-
DV250 (ORDER NO.AD0107129C8) for information
on“ACCESSORIES” and“PACKAGING”.
Specification
• Disc played
DVD-Video disc 8/ 12cm single-sided, single-layer
CD (CD-DA, VIDEO-CD) 8/ 12cm discs
CD-R/RW disc 8/ 12cm discs
• Audio
Number of channels 5.1 (FL, FR, SL, SR, C, SW)
• Video
Signal system PAL 625/50, PAL 525/60, NTSC
Output level (75Ω)
Composite video 1Vp-p (75Ω)
S-video Y 1Vp-p (75Ω)
S-video C 0.3Vp-p (75Ω) (PAL)
• Pick up
Beam source Semiconductor laser
Wavelength 658/790 nm
• General
Dimensions (W×H×D): 293×89×288 mm
8/ 12cm single-sided, double-layer
8/ 12cm double-sided, double-layer
(one layer perside)
0.286Vp-p (75Ω) (NTSC)
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6.1 Self-diagnosis
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The optical pickup self-diagnosis function and tilt adjustment check function have been included in
this unit. When repairing, use the following procedure for effective Self-diagnosis and tilt
adjustment.Be sure to use the self-diagnosis functionbefore replacing the optical pickup when "NO
DISC" is displayed. As a guideline, you should replace the optical pickup when the value of the laser
drive current is more than 55.
Note:
Press the power button to turn on the power, and check the value within three minutes before the unit
warms up. (Otherwise, the result will be incorrect.)
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7.1 Self-diagnosis Function and Service Modes
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7.2 Service mode table
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Pressing various button combinations on the player and remote control unit can activate the service
modes.
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7.3 ADSC Internal Ram Data Display
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7.4 Sales demonstration lock function
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This function prevents discs from being lost when the unit is used for sales demonstrations by
disabling the disc eject function. "LOCKED" is displayed on the unit, and ordinary operation is
disabled.
7.4.1 Setting
7.4.2 Cancellation
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7.4.1 Setting
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The sales demonstration lock is set by simultaneously pressing “STOP” button on the player and
“PLAY” button on the remote control unit.
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7.4.2 Cancellation
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The lock can be cancelled by the same procedure as used in setting. ("UNLOCKED" is displayed on
cancellation. Disconnecting the power cable from power outlet does not cancel the lock.)
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