BEFORE REPLACING PARTS, READ THE FOLLOWING:17.1. REPLACEMENT NOTES17.1.1. General Notes1. Use only original replacement parts:To maintain original function and reliability of repaired units,use only original replacement parts which are listed withtheir part numbers in the parts list.2. IMPORTANT SAFETY NOTICEComponents identified by the sign have specialcharacteristics important for safety. When replacing any ofthese components, use only the specified parts.3. SPECIAL NOTEAll integrated circuits and many other semiconductordevices are electrostatically sensitive and therefore requirethe special handling techniques described under the"ELECTROSTATICALLY SENSITIVE (ES) DEVICES"section of this service manual.4. Parts with no Ref. No. in "EXPLODED VIEWS" are notsupplied. And some Ref. No. will be skipped. Be sure tomake your orders of replacement parts according to theparts list.5. Parts different in shape or size may be used. However, onlyinterchangeable parts will be supplied as servicereplacement parts.6. Definition of Parts supplier:a. Parts with mark "SPC" in the Remarks column aresupplied from Spare Parts Center of Panasonic AVCCompany.b. Parts without mark in the Remarks column are suppliedfrom PSEC.7. Item numbers with capital letter E (Example: E10, E20,...) inthe Ref. No. column are shown in the exploded views.8. Parts whose Ref. Nos. are the same are interchangeable asreplacement parts. Any of these parts may be ordered andused as a replacement part.17.1.2. Mechanical Replacement Notes1. Section No. of parts shown in Exploded Views are indicatedin the Remarks column.2. AbbreviationRTL: Retention Time LimitedThis indicates that the retention time is limited for this item.After the discontinuation of this item in production, it will nolonger be available.17.1.3. Electrical Replacement Notes1. Unless otherwise specified;All resistors are in , K = 1,000 , M = 1,000 k.2. AbbreviationRTL: Retention Time LimitedThis indicates that the retention time is limited for this item.After the discontinuation of this item in production, it will nolonger be available.NR: Non Repairable Board Ass´yMGF CHIP: Metal Glaze Film ChipC CHIP: Ceramic ChipCOMPLX CMP: Complex ComponentW FLMPRF: Wirewound FlameproofP.C.B.: Printed Circuit BoardE.S.D.: Electrostatically Sensitive Devices3. SERVICE OF CHIP PARTSWhen servicing chip parts, please use a soldering iron ofless than 30 W.4. When replacing 0 resistor, a wire can be substituted forit.5. Parts with mark "CSP" in the Remarks column are CSP(Chip Size Package) IC.6. IC6004 replacement note:When replacing this IC, be sure to write the initial data withPC-EVR Adjustment Program.17 Replacement Parts Lists74SDR-H20E