United-Motors-Service-Delco-980051 电路原理图.pdf

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1、VOLUME R-21, MOST-OFTEN SERVICING INFORMATION BUICK MODEL 980051 VOLTAGES MEASURED TERMINAL TO CHASSIS WITH A VTVM - NO SIGNAL ANO 2.0 VOLTS AT ILLUS. SO. OSCILLATOR GRID VOLTAGE TAKEN WITH SET TUNED TO IOOOKC. TOTAL A DRAIN AT 12V. - 2.2 AMPS. TOLERANCE ON VOLTAGES 10% * - INDICATES LEAD FROM TUNER

2、 COIL ASSY. *-8EF0RE MEASURING TRANSISTOR VOLTAGES THE SHORTING TYPE SPEAKER SOCKET MUST 8E OPENED AND A 4 OHM SPEAKER CONNECTED. IF TRANSISTOR IS REPLACED, ADJUST 8IAS POTENTIOMETER (ILLUS.73) TO OBTAIN PROPER COLLECTOR VOLTAGE WITH 12 VOLTS INPUT TO RADIO. f“ - ILLUS 59 IS A FUSE RESISTOR FOR 3 THE TRANSISTOR. A-THIS PART WILL NOT APPEAR IN ALL RADIOS. A LEAD TO HEATERS PRINTED CIRCUIT SHOWN IN HEAVY LINES 收音机爱 好者资料库 RadioFans.CN