Admiral-Y4071 电路原理图.pdf

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1、VOLUME R-21, MOST-OFTEN-NEEDED 1961 RADIO SERVICING INFORMATION RUM 11 In All Sets Tb improve performance (tonal quality) at low volume level, resistors R1 and R2 vere changed from 100,000 ohms to one megohm, one-half-vatt. CHASSIS REMOVAL Model Y4049: Remove the metal grille by removing the screws

2、along the top and side of the grille. Disconnect the phono motor plug (M7), the two channel input plugs (M3 and M4), and speaker plug (M12). Re move the three control knobs by pulling them straight out from the control shafts. Remove the screws holding the phono motor board. Lift the board with the

3、record changer out of cabinet. To avoid marring the cabinet or damaging the record changer, do not allow the bottom of the record changer to scrape across the cabinet when removing. Remove the four nuts holding the chassis to the cabinet. Remove chassis from cabinet. Models Y4071, Y4072 and Y4073: Disconnect the phono motor plug (M7), the two channel input plugs (M3 and M4), and speaker plug (M12). Remove the three control knobs by pulling them straight out from the control shafts. Remove the four nuts holding the chassis to the cabinet. Remove chassis from cabinet. 收音机爱 好者资料库 RadioFans.CN