Sansui AU-X1, Service Manual

Page 1: ...ohms Max input capabi lity 40 mV at 1 kHz less than 0 0 I total harmonic distortion PHONO MM 2 5 mV 41 kilohms Max input capability 330 0 01 total harmonic AUX TUNER TUNER POWER AMP IN 1 Output level...

Page 2: ...hI Tape 1 2 50211 1 Tope 2 2 2 QN IReleose Type Swilch Sol Shorling Swilch F 2774 Tape Copy S602I d I Au Tun 5 5 1 2 2 Tuner 6 5 2 1 3 Off 4 Source Muting __ L Moster Volume RL6040 1 AuxlTuner SOlo P...

Page 3: ...low inter high mediate Cost low high high The advantages of FET are high input impedance and no thermal run away because of negative thermal coefficient of operating cur rent however there still remai...

Page 4: ...range IOV div Fig 9 T H D 0 1 tstg 1 6 us I switching distortion Wave forms of emitter current and distortion condition Po 40W Fig 11 RL 8fl f 50KHz lEwaveform NPN 2A DIV lE waveform PNP monitor wave...

Page 5: ...2 0623300 30pF 125V P C 18 3A C 13 0623300 30pF 125V P C lA 38 C 14 1 6 0602109 l l F 100V M C 18 3A C 17 0622 102 lOOOp F 125V P C C 25 29 06810 18 O 221JF M C R 01 0280221 220n 1 3W C R 28 4A R 02 0...

Page 6: ...3300pF 125V PC 28 4A C 25 0682037 0 12 F 100V M C 2A 48 C 26 0682023 O 033 J F 1DOV M C 2A B 48 C 27 0622202 2000pF 125V PC 28 4A R 0 1 0280563 56kn 1 3W CR 2A 48 R 02 0280330 33n 1 3W CR 2A 48 R 03 0...

Page 7: ...o Description Position Parts No Stock No _Transistor R 03 0280101 TROl 0305951 2 2SC945 Q P 18 R 04 0280472 TR02 0305951 2 2SC945 Q P 28 A 05 0212220 TR03 0305951 2 2SC945 Q P 18 R 06 0212152 TR04 030...

Page 8: ...R15 0306860 1 2SC2238LB O Y 2C R 38 0280103 10kn 1 3W C R TR16 0301020 1 2SA968LB O Y 2B R 39 0210561 560n 1 2W N I R 2C TR 101 0306740 1 2SC 1845 F E 3C R 01 0280104 100kn 1 C R lB R 40 0210561 560n...

Page 9: ...183 0280102 0280330 0280330 0280473 0280682 0280474 0280104 0280104 0280474 0212152 0280121 0159160 1150430 1150360 0432240 0432240 0432240 0432240 0432220 0432220 0431320 0433290 Description 2So357 O...

Page 10: ...D Parts No Stock No Description Position R 07 08 0280333 33kn 1 3W C R 2F 2E R 09 10 0191331 330n 1 4W F R 2E 2D A 11 12 0 191 331 330n 1 4W F A 2F 2E A 13 14 0280472 47kn 1 3W CA 1F 1D A 15 1 6 02804...

Page 11: ...1A 3 13 F 2772 MC MM Mother Circuit Board Conductor Side 3 14 F 776 Selector Switch Circuit Board Conductor Side 3 11 F 2820 Speakers Relay Circuit Board Conductor Side Parts List Parts No Stock No D...

Page 12: ...power switch set VR01 to center position DC 25 mV 1 mV Before turning ON power switch turn VR02 fully counterclockwise This bias current adjustment con verts current value into voltage by Ohm s law 4...

Page 13: ...Speaker Terminal AC Consent VR01 _ VR02 F_ VR02 1 VROl r TP03 VR01 l VR02 r J VR02 F 2819 5 2 Front View AU Xl hround Terminal _____ l VR0 1 L CH r VR01 R CH VROl L CH VR01 R CH TP01 R CH TP01 L CH VR...

Page 14: ...0 5396570 r426240 5426440 5396580 5059030 5517050 Voltage Selector Description Parts No Knob level volume Y 7 type Right Level Volume 50HZ Knob level volume Y 7 type Power Amp Operation Switch Knob po...

Page 15: ...A B 6 SCHEMATIC DIAGRAM 6 1 Pre Amp Section CD lUNER AVX 13 HEAD AMP MC ____ f291i I FETol o 2SKI63 c VRo1 cenr er DC DV drust...

Page 16: ...0 So b d P tono 501 e 11 h ono 2 So i l Tuner So m p Aux runer Tape Pl9 F 2776 2780 Soz a d Sou rce 2 S02 e h Tape I 2 Sozti l Tape 2 2 MM MC Selector F 2nn G i Sod a h Plwno 2 of JfM on MC SO c d Pho...

Page 17: ...lar B P1Bi PoII1TEl tctrogtic ElNon lnf Q Resistor bJlFil1flk3istor o m ld Rt3i stor III Fu sing Resistor R ESISTORS Arrin oizms 3Watts 1 5 Tolerance Unless otherwise Notld K k f2 M Ml CAPACITORS Are...

Page 18: ...ischen Fortschritt dienen bl iben vorbehalten F G POWER SUPPLY J O 22 JAPAN Modq VI 27 Nu 01 G g I 05 iii L_ _ I 03 I Z 1 1 N I t I J _ 06 H 2SA917 2SA968 2SA992 2SC2238 2SC945 2S8527 cl 2SC1845 2SD35...

Page 19: ...emove knobs Loosen a screw under the volume knob and take off a nut fixing speaker switch 4 Replacement of flat amp Tape copy switch circuit board F 2819 F 2774 Remove front panel ass y bonnet Loosen...

Page 20: ...SI Honolulu Hawaii 96819 U S A SANSUI AUDIO EUROPE N V North Trade Bldg 9th floor Noorderlaan 133 Bus 1 2030 Antwerp Belgium SNASUI AUDIO EUROPE S A Arabella center 6 Frankfurt AM Main Lyoner Strasse...