InterM-A120-pwr-sm维修电路原理图.pdf
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InterM-A120-pwr-sm维修电路原理图.pdf
www.inter- MADE IN KOREA NO: 9007985000 SERVICE MANUAL PUBLIC ADDRESS AMPLIFIER A-60/120 RadioFans.CN 收音机爱 好者资料库 1 AMP SECTION 1. OFF SET VOLTAGE A. Setting Set the master volume control minimum. B. Connection C. Adjustment Control OFFSET until voltmeter is the “0” position. (at Output Terminal) 2. IDLE CURRENT A. Setting Set the master volume control minimum. B. Connection C. Adjustment A-60: Adjust VR11 so that the current through the R56 and R58 become 10 milliampere. When that voltage is 10 millivolt, the current becomes 10 milliampere. A-120: Adjust VR11 so that the current through the R56 and R58 become 5 milliampere. When that voltage is 5 millivolt, the current becomes 10 milliampere. ELECTRICAL ADJUSTMENT PROCEDURE IDLE VR10 OFFSET MAIN PCB (4005181100) VOLT METER CHASSIS R56 R57 R58 R59 IDLE VR11 MAIN BD (4005181100) VOLT METER Electrical Adjustment Procedure1 Specifications 2 Electrical Parts List3, 4 Top and Bottom View of P.C. Board 5 Wiring Diagram6 Block Diagram 7 Schematic Diagram8, 9 Exploded View of Cabinet TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. AVIS;RISQUE DE CHOC ELECTRIOUE NE PAS OUVRIR. PUBLIC ADDRESS AMPLIFIER MODEL: A-120 COM100V (83 ) WARNING;TO REDUCE THE RISK OF ELECTRIC SHOCK. DO NOT EXPOSE TUIS EQUIPMENT OR MOISTURE. 70V(41 )4 www.inter- 123 6 4 1091187 5 12 NOTE
