Sony DC-78 دليل المستخدم

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DC POWER SUPPLY UNIT
DC-78
SERVICE MANUAL
1st Edition

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! WARNING This manual is intended for qualified service personnel only. To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service personnel. ! WARNUNG Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt. Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die Gefahr eines elektrischen Schlages, F

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1. Service Overview 1-1. Removal the Input Connector 1-2. Removal the Transformer Mounted Circuit Board 6 P 2x7 3 Remove the case lid. 1 Connector screw LW2 4 Battery 2 Press both claws. 2 Cannon pin sleeve insert (3-pin) VIO Battery case 5 K 2x3 BLK Cannon pin sleeve GRN 3 Remove the three leads. 1 Battery sleeve 2 Spring Battery case Cannon pin sleeve 4 Nut and Washer Transformer mounted Cap circuit board Battery case VIO ORG RED Screwdriver (2 mm dia.) YEL Transformer mounted 1 K 2

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2. Board Layout TRANSFORMER MOUNTED CIRCUIT BOARD GRN 5 CN T PIN INSERT RED (XLR-3-14) 21 2 SOLDER 3 SIDE BLK YEL 0 4 CN (S) 4P SOLDER SIDE BATTERY SOLDER SIDE 1.5 V VIO ORG 1 4 7 3 WHT 2 3 9 ORG VIO 3 7 3. Schematic Diagram 1S133T 22 k BATTERY 68µ /6.3 V 1.5 V HZ28LL ORG YEL GRN CN (S) 4P 1 2 CN OUT SIDE 43 PIN INSERT 1 2 VIEW RED (XLR-3-14) 3 T1 BLK OUT SIDE VIEW VIO VIO DC-78 2 (E)

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4. Spare Parts 4-1. Notes on Repair Parts 1. Safety Related Components Warning w Components marked ! are critical to safe operation. Therefore, specified parts should be used in the case of replacement. 2. Standardization of Parts Some repair parts supplied by Sony differ from those used for the unit. These are because of parts common- ality and improvement. Parts list has the present standardized repair parts. 3. Stock of Parts Parts marked with “o” at SP (Supply Code) column of the spare part

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4-2. Exploded Views and Parts List K 2x3 8 A 5 1 K 2x3 4 6 K 2x3 LW2 P 2x7 12 K 2x3 7 K 2x3 9 10 2 No. Part No. SP Description 3 A 1 A-4587-928-A s CONNECTOR ASSY 11 2 A-4591-438-A s TRANSFORMER MOUNTED PC BOARD 3 X-2335-596-1 s CASE SUB ASSY, BATTERY 13 4 1-509-096-00 s CANNON XLR3-14 PIN INSERT 5 1-561-376-11 s CONNECTOR (S) 4P 6 2-347-609-01 s SLEEVE, BATTERY 7 2-347-610-01 s SLEEVE, CANNON PIN 8 2-347-611-01 s CAP 9 2-347-613-01 s LID, CASE 10 2-347-614-01 s SPRING, BATTERY 11 2-347-615-01 s

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Printed in Japan DC-78 (SYM) J, E 2002. 10 11 9-976-910-01 Sony Corporation ©2002