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File name hfe_nikko_gamma_v_service.pdf

ALIGNMENT TEST EQUIPMENT GENERAL ALIGNMENT INSTRUCTION Allow a minimum of 10 minutes warm-up for test equip- Always observe response curve on oscilloscope during ment and the tuner to be tested. alignment procedure: Maintain rated line voltage. 1. Do not apply signal from FM or AM stations. FM Signal Generator (FM SG) Apply signal from generator only. Oscillascope 2. Use of excessive signal from FM SG or AM SG can AC Voltmeter cause overloading of the tuner circuits. To properly Distortion Meter align the tuner, adjust FM SG or AM SG output MPX Signal Generator (MPX SG) level control so that response curve on oscilloscope is Frequency Counter not distorted. AM Sweep Generator (AM SG) DC Voltmeter FM SECTION 1 DISTORTION 1 L-J 5.12 MHz ADJ; 76 kHz ADJ AC VOLT- METER 1 I MPX SIGNAL GENERATOR I _ - _- _- INPUT OUTPU T I I OSCILLOSCOPE FM SIGNAL GENERATOR STANDARD DUMMY GAMMA V 1 IZEXT MOD INPUT L --_ ___