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Pioneer TX-9500II, Operating Instructions Manual

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Summary of Contents for TX-9500II

Page 1: ... AM FM STEREO TUNER OPERATING INSTRUCTIONS ...

Page 2: ... realized together with ultra low distortion In the narrow band mode a 10 element ceramic filter is switched in to provide ultra high selectivity This setting allows comfortable reception in locations where there is strong adjacent interference to the desired station Automatic Pilot Signal Cancelling Circuit Earlier multiplex circuit designs employed 19kHz pilot signal blocking filters and thus ex...

Page 3: ...rrosion of terminal contacts wh ch can lead to faulty connec tions Humidity and moisture can aiso cause defective nsulation present the risk of leakage currents and ovrrl b j rcult components Internal accumulations of dust can absorb molsture and lead to faulty insulation Mutual interference can occur from oscillator circuits used in these products Appearance and fin sh of front panel can be damag...

Page 4: ... TO TAPE DECK A tape deck can be connected directly to the TX 9500I Ito allow recording from broadcasts Connect the recording input LINE INPUT jacks of the tape deck to the OUTPUT FIXED jacks ANTENNA STEREO AMPLIFIER Right channel Ls N 8 1 9 TUNER INPUT JACKS Fig 1 TX 9500fl TAPE DECK RECORDING JACKS Fig 2 FM ANTENNAS FM broadcast signals deteriorate in mountainous areas amid tall buildings within...

Page 5: ...tions open the antenna to a T shape rotate it 180 to determine where the best reception is obtained then attach it to a wall or ceiling AM ANTENNAS While listening to AM stations see AM Reception on Page 7 move the rear panel ferrite bar antenna and position it for best reception In cases when the bar antenna is insufficient for adequate reception an indoor AM antenna can be made from a length 5 t...

Page 6: ...cording levels of tape deck A 440Hz signal level corresponding to 50 FM modulation is produced at approxi mately 1 7 second intervals I L I t I J i 3 I I I 1 i 7 I MEMORY MARKERS i Convenient for designating most often tuned in stations Slide markers with fingertip to desired positions OUTPUT LEVEL CONTROL L Adjusts level at OUTPUT VARIABLE jacks Clockwise rotation increases output level See OUTPU...

Page 7: ...TCH 1 Controls circuit for cancelling bothersome interstation 1 noise when tuning FM stations to provide a comfortable t TUNING KNOB tuning operation Knob for selecting stations Refer to the SIGNAL meter 2 Set to this position to receive only strong when tuning AM stations and to both SIGNAL and stations TUNING meters when tuning FM stations 1 If desired station cannot be received at position 2 se...

Page 8: ...he tape deck is required for producing good quality recordings from FM broadcasts This is ordinarily quite difficult since the output level of FM broadcasts varies continuously By setting the REC LEVEL CHECK switch to ON a 440Hz reference signal at level corresponding to 50 FM modulation is produced Optimum record ing levels can then be set regardless of the program Setting Recording Level 1 Conne...

Page 9: ...axis gain is insufficient for easy waveform observation when employing an oscilloscope for adjust ment instead o f connecting the oscilloscope horizontal input to the MULTIPATH HORIZ jack connect it to the OUTPUT VARIABLE L jack In this case the horizontal axis gain can then be adjusted with the OUTPUT LEVEL control Since adjustment with the aid o f an oscilloscope can also be performed together w...

Page 10: ...perate adaptor and set for reception Adjust volume and tone with the controls of the stereo amplifier NOTES 0 Refer to the Dolby NR adaptor operating instructions regarding connection and operation When not listening to FM Dolby broadcasts be sure to set the FM DE EMPHASIS switch to 75us FM DE EMPHASIS SWITCH 1 Loosen lower screw remove plastic cover and set switch to 2 5 s 2 Loosen upper screw ro...

Page 11: ...ppression Ratio 65dB Muting Threshold 19 2dBf 5pV 34 1dBf 28pV Subcarrier Product Ratio 77dB SCA Rejection Ratio 62dB Antenna Input 300ohms balanced 75ohms unbalanced AM Section Circuitry 1 stage RF amplifier 3 gang variable capacitor Sensitivity IHF ferrite antenna 300uVIm IHF exteinal antenna 1SpV Selectivity 30dB Signal to Noise Ratio 55dB Image Response Ratio 70dB IF Response Ratio 65dB Antenn...

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Page 16: ...in the vicinity of the house In many cases it is very difficult to remove the source of noise In order to make the radio input larger than the noise level set up a good outdoor antenna and make a complete groun ding 0 Poor fluorescent lamp motor or electric heater may be in use in house or near the house Reversing the line plug may occasionally al leviate this noise problem Usually it is very diff...

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