RCA-Victor-Co-Inc-RS-138A 电路原理图.pdf

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1、MANUAL OF 1951 MOST-OFTEN-NEEDED RADIO DIAGRAMS rcaVictor Automatic Record Player MODEL 45-EY-2 Chassis No. RS-138, RS-138A Pickup Height Adjustment Adjust knurled nut (A) until the distance (during change cycle) between the top of the turntable and the stylus point is approximately l/s Pickup Landi

2、ng Adjustment Adjust the screw driver landing adjustment stud ”B so the stylus lands 2% / from the side of the center post. Tripping Adjustment Adjust the eccentric tripping stud (C) until the mechanism trips when the stylus is 1*% from the side of the center post. Stop Dog Adjustment Turn the eccen

3、tric screw (E) until the record drops to the turntable without striking the pickup arm. Critical Lead Dress 1. Dress all leads away from R6 and R9 2. Dress electrolytic capacitor away from R6 and R9 3. Dress filament leads down to chassis 4. Solder braid of W-l such that it acts as a strain relief STOP DOG ADJUSTMENT 106 Schematic Diagram RS138A 收音机爱 好者资料库 RadioFans.CN