Panasonic SJ-MR230DGK specifications Grounding for electrostatic breakdown prevention

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4.2. Grounding for electrostatic breakdown prevention

1.Human body grounding

Use the anti-static wrist strap to discharge the static electricity from your body. (as shown in Fig. 3 )

2.Work table grounding

Put a conductive material (sheet) or steel sheet on the area where the optical magnetism head unit is placed, and ground the sheet. (as shown in Fig. 4 )

Caution

The static electricity of your clothes will not be grounded through the wrist strap.

So, take care not to let your clothes touch the optical magnetism head unit.

Fig. 3

Fig. 4

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Contents Portable MD Recorder ColoursBlue Type Atrac / ATRAC3 Accessories RFKFFAZ01EM1Precation of Laser Diode Handling the optical magnetism head unit Grounding for electrostatic breakdown prevention Operation Checks and Component Replacement Procedures Checking for the main P.C.BCheck the main P.C.B. a side as shown below Replacement for the open knob Replacement for the traverse motor Follow the of item Page Replacement for the LCD Page Replacement for the lift motor Page Page Measurements and Adjsutments Instruments to prepareEnter the adjustment mode About handling the optical pickup and the magnetic head Page Off-set automatic adjustment Magneto-optical disc automatically adjustment Play Stop FOW REV Hold OFF REC VOL+ Mark Mode Checking the main units keysPlay Troubleshooting GuideOverall Flow Chart VOLPage Confirmation of main unit and cradle Page Flow Chat of Each Part Page Page Page Page Page Page Page Display of Self-Diagnostic Function Schematic Diagram Notes Schemtic Diagram NotesImpedance of the DC circuit tester Type Illustration of ICs, Transistors and DiodesWiring Connection Diagram Terminal Function of ICs 15.1. IC1 AN22010A-VF RF AMPAdip FF2FF1 NrecRefm TS0Apcd SpdmSbck TvdpSTPO1 STPO2Ssdw SctsySsdr SsckPEFM1 AVSS1Pefms EfmfilRDT3 DVDD2RAD0 IVDD1SP VM1 StallSthb SP UBRK CSL2BRK+ Asgnd15.4. IC501 C2DBKJ000062 System Control Avdd ResetAvrefo AvssMreq KeywakeDoctor MrstMIC/LINE InselMicdet EfmonSTBY2 HFON1Rfcnt MsprstCfsync OpenswWakeup ANI11 GNDReplacement Parts List Screw SWITCHS501 Page ECUE1C223KBQ RCST0JY226RG JACK,HEADPHONE DTC144EETL Transistor B1GBCFNN0001 ERJ2GED513X Cabinet Parts Location Packaging Schematic Diagram for printing with A4