Emerson-Radio-and-Phonograph-Corp-616 电路原理图.pdf

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1、MANUAL OF 19S0 MOST-OFTEN-NEEDED RADIO DIAGRAMS EMERSON RADIO MODEL: 602 CHASSIS MODELS: 120072A, 120082A An internal power line antenna is provided for FM re ception in relatively strong signal areas. The line cord should be completely uncoiled for effective operation of this antenna. An external d

2、ipole antenna is recommended for maximum FM operation. To connect the dipole, re move the wire from the screw terminal at the rear of the chassis marked A” and connect the dipole leads to A” and G”. NOTE: This service note covers Model 602. The information contained herein applies equally to similar

3、 models, including Models 600 and 616. TYPE: Single band FM superheterodyne FREQUENCY RANGE: Frequency modulation band88-108 INSTRUCTIONS FOR VOLTAGE AND RESISTANCE READINGS megacycles 1. Voltage readings are in volts and resistance readings in ohms unless otherwise specified. 2. D.C. voltage measur

4、ements are at 20,000 ohms per volt; a.c. voltages are measured at 1000 ohms per volt. 3. Socket connections are shown as bottom view. 4. Measured values are from socket pin to common negative. 5. Line voltage maintained at 117 volts for voltage readings. 6. Nominal tolerance on component values make

5、s possible a variation of + 15% in voltage and resistance readings. 7. Volume control at maximum, no signal applied, for voltage measurements. 8. Resistance readings in the B+ circuits may vary widely according to the condition of the filter condensers. VOLTAGE READINGS SYMBOL meg. means megohm.” I20A7 I2BA6 I2BA6 v. I2S8GT 35B5 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN