Service Manuals, User Guides, Schematic Diagrams or docs for : TOSHIBA DVD SD-2050 hfe_toshiba_sd-2050_service_en

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                           FILE NO. 810-200005




SERVICE MANUAL


         DIGITAL VIDEO




    DVD VIDEO PLAYER
                         SD-2050




                                      May, 2000 s
LASER BEAM CAUTION LABEL




When the power supply is being turned on, you may not remove this laser cautions label. If it removes, radiation of a laser
may be recceived.


PREPARATION OF SERVICING
Pickup Head consists of a laser diode that is very susceptible to external static electricity.
Although it operates properly after replacement, if it was subject to electrostatic discharge during replacement,
its life might be shortened. When replacing, use a conductive mat, soldering iron with ground wire, etc. to
protect the laser diode from damage by static electricity.
And also, the LSI and IC are same as above.




                                                         Ground conductive
                                                         wrist strap for body.




                       Soldering iron
                       with ground wire
                       or ceramic type




                                                                                 1M
                                      Conductive mat
                                                                  The ground resistance
                                                                  between the ground line
                                                                  and the ground is less than 10.
SAFETY NOTICE
                                              SAFETY PRECAUTIONS
LEAKAGE CURRENT CHECK
Plug the AC line cord directly into a 120V AC outlet (do      Measure the AC voltage across the 1500  resistor.
not use an isolation transformer for this check). Use an      The test must be conducted with the AC switch on and
AC voltmeter, having 5000  per volt or more sensitivity.      then repeated with the AC switch off. The AC voltage
Connect a 1500  10 W resistor, paralleled by a 0.15 

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