Technics-SLDV250-dvd-sm 维修电路原理图.pdf
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1、http:/servis- Manual TOP NEXT ORDER NO.AD0107130C8 DVD/Video CD/CD changer lSL-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,
2、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 8/ 12cm single-sided, double-layer 8/ 12cm double-sided, dou
3、ble-layer (one layer perside) 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 (75) Composite video 1Vp-p (75) S-video Y 1Vp-p (75) S-video C 0.3Vp-p (75) (PAL) 0.286Vp-p (
4、75) (NTSC) Pick up Beam source Semiconductor laser Wavelength 658/790 nm General Dimensions (WHD): 29389288 mm RadioFans.CN 收音机爱 好者资料库http:/servis- Self-diagnosis TOP PREVIOUS NEXT The optical pickup self-diagnosis function and tilt adjustment check function have been included in this unit. When rep
5、airing, 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 5
6、5. 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.) TOP PREVIOUS NEXT 20. 10. 2004file:/C:Documents%20and%20SettingsAdminPlochaSCHMATAVIDEAPAN.RadioFans.CN 收音机爱 好者资料库http:/servis- Self-dia
7、gnosis Function and Service Modes TOP PREVIOUS NEXT TOP PREVIOUS NEXT http:/servis- Service mode table TOP PREVIOUS NEXT Pressing various button combinations on the player and remote control unit can activate the service modes. http:/servis- TOP PREVIOUS NEXT http:/servis- ADSC Internal Ram Data Dis
8、play TOP PREVIOUS NEXT TOP PREVIOUS NEXT http:/servis- Sales demonstration lock function TOP PREVIOUS NEXT 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 disa
9、bled. 7.4.1 Setting 7.4.2 Cancellation TOP PREVIOUS NEXT http:/servis- Setting TOP PREVIOUS NEXT The sales demonstration lock is set by simultaneously pressing “STOP” button on the player and “PLAY” button on the remote control unit. TOP PREVIOUS NEXT http:/servis- Cancellation TOP PREVIOUS NEXT The
10、 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.) TOP PREVIOUS NEXT http:/servis- Service Tools and Equipment TOP PREVIOUS NEXT TOP PREVIOUS NEXT Application Name Number
11、Tilt adjustment DVD test disc DVDT-S15 or DVDT-S01 Hex wrench Inspection Extension cable (module P.C.B. to mother P.C.B.) JGS0098 (DVD-RV41 only) Extension cable (module P.C.B. to mother P.C.B.)(2pcs: DVD-RV31 only, 1pce: DVD-RV41 only) Others Screw lock RZZ0L01 Grease RFKXGAK152 Oil RFKXGA1280, JZS
12、0648 Confirmation CD test disc PVCD-K06 or any other commercially available disc VCD test disc PVCD-K06 or any other commercially available disc http:/servis- Optical pickup tilt adjustment TOP PREVIOUS NEXT 8.4.1.1 Adjustment procedure 8.4.1.2 Important points 8.4.1.3 Check after adjustment 8.4.1.4
13、 Procedure for screw lock TOP PREVIOUS NEXT Measurement point Adjustment point Mode Disc Tangential adjustment screw Tilt adjustment screw T01 (inner periphery) play T43 (outer periphery) play DVDR-S15 or DVDT-S01 Measuring equipment Adjustment value None (Main unit display for servicing is used.) A
14、djust to the minimum jitter value. http:/servis- Adjustment procedure TOP PREVIOUS NEXT 1. While pressing “STOP” button on the main unit, press 5 on the remote control unit. 2. Confirm that J_xxx_yyy_zz is shown on the front display. For your information: yyy and zz shown to the right have nothing t
15、o do with the jitter value. yyy is the error counter, while zz is the focus drive value. Note: Jitter value appears on the front display. 3. Play test disc T01 (inner periphery). 4. Adjust tangential adjustment screw so that the jitter value is minimized. 5. Play test disc T43 (outer periphery). 6.
16、Adjust tilt adjustment screw 1 so that the jitter value is minimized. 7. Play test disc T43 (outer periphery). 8. Adjust tilt adjustment screw 2 so that the jitter value is minimized. 9. Repeat adjusting tilt adjustment screws 1 and 2 alternately until the jitter value is minimized. TOP PREVIOUS NEX
17、T http:/servis- Important points TOP PREVIOUS NEXT 1. Make tangential adjustment first, and then make tilt adjustment. 2. Repeat adjusting two or three times to find the optimum point. 3. Finish the procedure with tilt adjustment. TOP PREVIOUS NEXT Jitter value depends on the model: 1.If the jitter
18、value changes like B, the optimum point is easy to find. 2.If the jitter value changes like A, set the optimum point near the middle. http:/servis- Check after adjustment TOP PREVIOUS NEXT Play test disc or any other disc to make sure there is no picture degradation in the inner, middle and outer pe
19、ripheries, and no audio skipping. After adjustment is finished, lock each adjustment screw in position using screw lock. TOP PREVIOUS NEXT Ref No.MODE1234567891011121314151617181920STOP1.61.61.73.31.61.701.61.61.51.51.71.43.31.72.402.21.50PLAY2.11.61.71.31.61.701.61.61.51.51.71.43.31.72.51.12.21.50R
20、ef No.MODE2122232425262728293031323334353637383940STOP1.11.11.91.71.503.31.7001.701.71.601.51.93.31.71.7PLAY1.31.31.91.71.503.31.7001.701.71.601.71.73.31.71.7Ref No.MODE4142434445464748495051525354555657585960STOP01.71.91.003.33.31.5001.71.7000002.53.30PLAY02.01.91.003.301.5001.72.0003.33.302.53.30R
21、ef No.MODE6162636465666768697071727374757677787980STOP1.900000.93.31.73.30.23.40003.31.60.91.30.51.7PLAY1.800.2000.901.73.30.13.40003.31.60.90.90.91.1Ref No.MODE81828384858687888990919293949596979899100STOP03.31.73.13.33.33.32.83.33.3000002.52.41.81.61.6PLAY03.31.73.03.33.33.32.83.33.3000002.52.41.8
22、2.01.1Ref No.MODE1234567891011121314151617181920STOP3.30.11.40.101.200.93.31.43.33.33.31.8000000PLAY3.30.11.40.1000.50.93.31.53.33.03.31.8000000Ref No.MODE2122232425262728293031323334353637383940STOP0000003.33.303.33.13.31.53.32.93.02.93.01.82.8PLAY0000002.43.303.32.43.31.53.30.60.60.63.01.82.8Ref N
23、o.MODE4142434445464748495051525354555657585960STOP3.02.8000003.33.33.33.303.33.13.13.03.103.13.0PLAY2.42.23.103.33.33.33.33.30.4003.300.10.10000.7Ref No.MODE6162636465666768697071727374757677787980STOP3.03.01.83.03.13.03.103.400003.31.303.31.71.83.4PLAY1.21.11.81.21.20.80.800.700003.31.91.71.71.71.8
24、0.4Ref No.MODE81828384858687888990919293949596979899100STOP1.71.71.701.701.81.61.71.73.30000003.31.43.3PLAY1.81.71.801.701.81.61.73.300000003.31.63.3Ref No.MODE101102103104105106107108109110111112113114115116117118119120STOP0001.81.8001.83.31.43.33.30001.01.02.40.63.3PLAY0001.81.8001.803.33.30001.01
25、.00.62.40.60Ref No.MODE121122123124125126127128129130131132133134135136137138139140STOP0.60.62.40.400.60.62.40.43.31.31.32.20.3000000PLAY0.60.62.40.43.31.31.32.40.401.32.20.500003.33.00Ref No.MODE141142143144145146147148149150151152153154155156157158159160STOP003.33.101.80000000.1003.303.13.13.3PLAY
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