National Criterion Instruction Book Download | Manualshive

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Summary of Contents for Criterion

Page 1: ...ASCODE FRONT END Provides the maximum possible sensitivity in the FM frequency range FM IF CHANNEL 8 tuned circuits are used to pro vide a highly selective intermediate frequency pass band This enable...

Page 2: ...1 DESI AL REGION OF COMPLETE REJECTION OF UNOESIRES SIGNAL RATIO OF AUOIO INTERFERENCE 0 I UNOESIRED SIGNALS DESIRED SIGNALS _ REGION OF COMPLETE ACCEPTANCE OF UNOESIRED SIGNAL Figure 7 Capture Ratio...

Page 3: ...ion features required for high fidelity phonograph reproduction directly to the front panel of the tuner PRINTED CIRCUITS Printed circuitry is used to take full advantage of the latest electronic tech...

Page 4: ...LIFIER INPUT FM ANTENNA WITH HORIZON 5 PREAMP 117 VAC 60 FM ANTENNA BINAURAL TO AM ANTENNA GROUND IF USED NATIONAL CRITERION TUNER NATIONAL HORIZON AMPLIFIER MAY BE LEFT IN TUNER OUTPUT JACK IF DESIRE...

Page 5: ...r FM as selected by the Selector switch FM AM BINAURAL OUTPUTS These two jacks provide low impedance outputs from the FM section and AM section respectively They are intended to be used with two indep...

Page 6: ...e Recording Signal Output jack the tuning procedure may follow either a or b above The volume controls may be adjusted for desired listening level without affecting the 1 volt rms level reaching the r...

Page 7: ...and withdraw die tuner far enough to disconnect the input and output cables after which the tuner may be removed from die cabi net If die tuner is equipped with a metal dust cover remove die four fel...

Page 8: ...R72 R58 TEST POINT NO 2 TOP VI W OF CHASSIS TEST POINT NO 4 TEST POINT NO 3 FRONT 4 Ww PLIZB 1 L B M _ SEC SEC f Z 2 Z I 1 L22B I I I I J 1 T8 SK U8B J O J BOTTOM VIEW OF CHASSIS Figure 7 Alignment Ad...

Page 9: ...s not do so proceed with the complete realignment b DETAILEDFM IF ALIGNMENT If the previous steps indicate the necessity for complete realignment proceed as follows Step 1 Connect the sweep generator...

Page 10: ...nnect the oscil loscope to the plate of V5 pin 5 Step 5 Set die selector switch of the tuner to AM Step 6 Adjust the generator output to a level just high enough to produce a usable trace The pattern...

Page 11: ...R72 RC1 SU1 Tl T2 T3 T4 T5 T6 T7 T8 T9 Wl XF1 Yl Zl Z2 Z3 DESCRIPTION with SPST switch IRC type Q Variable 500 000 ohms A taper Clarostat type 47 Variable 1 000 ohms A taper IRC type RQ11 108 Diode F...

Page 12: ...3AC 0 12 0 0 6 3AC 20 120 200 4 6 3AC 6 3AC 6 3AC 6 3AC 6 3AC 6 3AC 0 5 5AC 0 6 3AC 6 3AC 20 0 300AC 5 0 0 170 200 210 210 210 0 5 to 0 7 0 100 100 4 to 7 0 20 6 110 0 100 70 100 100 100 0 7 to 1 0 1...

Page 13: ...il0 0 CATHODE FOLLOWER NOTE CAPACITOR VALUES MICROMlCROFAf ADS EXCEPT AS NOTED RESISTOR VALUES OHMS K 1000 M MEGOHM CAPACITORS 500 VOLTS WORKING EXCEPT AS NOTED OHMIC VALUE OF FIXED RESISTORS i lOX EX...

Page 14: ...ntenna Turn the FM volume control on full and adjust R72 for minimum audible hum as heard from the speaker system b If the Horizon 5 preamp is used with die tuner set the Selector of the preamp at any...

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