Marantz SR4000 Service Manual - Page 32

7D-2 TUNER 95 bis Adjustment Table (FM, MW, LW with Frame antenna) Waverange Input frequency VARICAP ALIGNMENT FM (50) 87.5 - 108 MHz MW (9) 531 - 1602 kHz LW (3) 153 - 279 kHz FM - DETECTION FM 98 MHz 1mV continuous wave short pin 21 (IC7101) to ground FM - VCO FM DISTORTION FM 98 MHz 1 mV continuous wave 98 MHz 1 mV 90 % L + 9 % pilot mod = 1kHz AM - IF Input A A A Set tuned to 108 MHz 87.5 MHz 1602 kHz 531 kHz 279 kHz 153 kHz 98 MHz 98 MHz 98MHz Adjust Output Scope / Voltmeter check check 5123 check 6 5122 check 7 ... 9V 1.3 ... 2V 8.3V ± 0.2V 1V ± 0.4V 8.3V ± 0.2V 1V ± 0.4V 1 5107 2 0mV ± 3mV 3142 3 mixcoil inside Tuner 4 1110 152kHz ± 1 kHz Distortion minimum MW AM - RF 450kHz ∆f = 10kHz 100nF Low as possible 50E Swept signal MW C 450kHz continuous wave 5111 5112 5114 symmetrical and 7 max. height 1 0mV ± 2mV 2 MW LW 558kHz Mod = 1kHz 30 % AM 1494 kHz 198kHz mod = 1kHz 30 % AM * Signal send via a frame antenna (..) = tuning grid in kHz 558kHz 5102 B 7 1494kHz 2106 * 198kHz 5103 repeat MAX MAX adjtable for 3104 217 04121/04341