Noblitt-Sparks-Industries-Inc-142202 电路原理图.pdf

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1、VOLUME R-21, MOST-OFTEN-NEEDED 1961 RADIO SERVICING INFORMATION ARVIN RADIO MODELS 10R16 10R18 CODE 1.42202 BOTTOM CIRCUIT FWfT DUMMY TO GENERATOR INPUT FOR.06 MiXT OUTPUT (0.4 VOLTS ACROSS VC) INPUT FOR .5 MATT OUTPUT (1.26 VOLTS ACROSS VC.) 1 AT 4SS KC 2000/“ V 5000/*. V 2 DW AT 4SS KC 60 ISO . 9

2、SnNOARO LOOP AT K0O KC 200/ M SOO/tV/M VOLUME ALIGNMENT PROCEDURE PRELIMINARY: Output meter connection.Across speaker voice coil Output meter reading to indicate 500 milliwatts (standard output). . . 1.26 volts Connection of generator ground lead.Floating ground Generator modulation.30% 400 cycles P

3、osition of Volume Control.Fully clockwise Position of Variable F requency of i Generator Dummy Antenna Generator Output Connection 1 Trimmers Adjusted in Order Shown for Maximum Output Function of Trimmer 455 Kc 1670 Kc 1400 Kc 1000 Kc 600 Kc .05 p fd Pin 7 12BE6 * Test Loop * Test Loop * Test Loop

4、* Test Loop Al, A2, A3, A4 A5 A6 Fan CIA Plates Fan CIA Plates I.F. Oscillator Antenna * Standard Hazeltine Test Loop Model 1150 or 3 turns of wire about 6 in dia meter placed about one foot from the set loop. The alignment procedure should be repeated in the original order for greatest accuracy. Always keep the output from the signal generator at its lowest pos sible value to make the AVC action of the receiver ineffective. 19 收音机爱 好者资料库 RadioFans.CN