User manual MCINTOSH MA6100

[. . . ] MA 6100 PREAMP AMPLIFIER SERVICE INFORMATION STARTING WITH S E R I A L NO. AE1001 MA 6100 MclNTOSH LABORATORY INC. 2 CHAMBERS STREET BINGHAMTON, NEW Y O R K MA 6 1 0 0 P E R F O R M A N C E LIMITS PERFORMANCE Mclntosh audio power ratings are in accordance with the Federal Trade Commission Regulation of November 4, 1974 concerning power output claims for amplifiers used in home entertainment products. POWER OUTPUT 70 watts minimum sine wave continuous average power output, per channel, both channels operating into 8 ohms load impedance which is: 23. 7 volts RMS across 8 ohms 40 watts minimum sine wave continuous average power output, per channel, both channels operating into 16 ohms load impedance which is: 25. 3 volts RMS across 16 ohms OUTPUT LOAD IMPEDANCE RATINGS OUTPUT VOLTAGE At TAPE output: Aux, Tape, Tuner: 300 mV with input Phono: 300 mV with rated input; 1. 2 volts with 1. 0 mV input at 1000 Hz Tape Hd: 300 mV at 500 Hz with rated input DAMPING FACTOR 50 at 8 ohms output 100 at 16 ohms output INPUT SENSITIVITY AND IMPEDANCE Power Amplifier: 3 volts, 100, 000 ohms Phono 1 and Phono 2: 2. 5 mV at 1000 Hz, 47, 000 ohms Tape Head: 3 mV, 47, 000 ohms Tape, Aux, and Tuner: 300 mV, 250, 000 ohms BASS CONTROLS + 16 dB to -16 dB at 20 Hz TREBLE CONTROLS + 16 dB to -16 dB at 20, 000 Hz LF FILTER Active filter, 12 dB per octave rolloff below 50 Hz; 20 dB down at 20 Hz HF FILTER Active filter, 12 dB per octave rolloff above 7000 Hz; 20 dB down at 20, 000 Hz GENERAL INFORMATION SEMICONDUCTOR COMPLEMENT 36 Silicon Transitors, 22 Silicon Rectifiers and Diodes, 2 Silicon Bilateral Switches, 2 Triac POWER REQUIREMENTS 120 Volts, 50/60 Hz, 50 watts at zero signal output, 380 watts at rated output MECHANICAL INFORMATION SIZE Front panel measures 16 inches wide (40. 64 cm) by 5 7/16 inches high (13. 81 cm). [. . . ] A l l v o l t a g e s ±10% w i t h respect to c h a s s i s ground. No s i g n a l at i n p u t t e r m i n a l s . AC i n p u t at 120 v o l t s , 50/60 Hz. Front panel controls a t : Volume I n p u t selector Mode selector B a l a n c e control Como 6. F u l 1 y CW Aux Stereo Zero Flat Tape mon. Tape copy Filters Phase Speakers out out out out out Tone controls Flat In u n i t s w i t h S e r i a l No's below A E 1 4 5 3 ; C415 & C416 are 1000pF. C413 & C414 are 1000µF and C407 & C408 are 470pF. In e a r l y export u n i t s R429, R430, R447 & R448 are 47 In u n i t s w i t h S e r i a l No's below AE2557; C I 1 7 and C 1 1 8 are 1 2 p F . In u n i t s w i t h S e r i a l No's below AE2075; R309 is D308. 070-064) (Mclntosh In u n i t s w i t h S e r i a l No's below A E 2 1 2 2 ; R211 & R 2 1 2 are Mclntosh Part No. 134-354 and R227 & R228 are M c l n t o s h Part No. I n u n i t s w i t h Serial No's below AE3988; R 4 2 1 , R422, R423 & R 4 2 4 are 100 5% 1/2W; R425, R426, R427, & R428 are used; D 4 1 7 , D 4 1 8 , D419 & D420 are not used; R437 and R438 are used and D 4 I 5 and D 4 1 6 are not used. MA D417, 418 D419, 420 0308 D309 D401 , 4 0 2 6100 REPLACEMENT PARTS A l l p a r t s not l i s t e d are common a b l e from r a d i o p a r t s j o b b e r s . Si. Rectifier Rectifier 070-046 070-046 070-031 20V 070-064 070-047 070-046 070-047 070-047 070-031 070-031 132-098 070-047 R e p l a c e m e n t p a r t s may be o b t a i n e d when ordered by PART NUMBER f r o m : Mclntosh Laboratory, Inc. C us tomer S e r v i c e D e p a r t m e n t 2 Chambers S t r e e t Binghamton, New Y o r k 1 3 9 0 3 ( telephone 6 0 7 - 7 2 3 - 3 5 1 2 ) CAPACITORS Symbol Number C 1 0 1 , 102 Zener Si. [. . . ] 5 µ F DIODES Q417, 4 1 8 D301 , 302 R20I S i . R e c t i fier Zener 75V Ba l ance con t ro l Vo 1 ume cont ro l B a s s t r i m con t ro l Bass t r i m control 134-240 134-239 134-354 134-254 070-041 R2IO 070-041 R21 1 D303, 304 D305, 306 D307 070-031 070-025 R212 POTENTIOMETERS R215 R2I6 R227 R228 Treble control Bass control Treble t r i m control 134-238 134-237 134-253 134-253 Treble trim control RESISTORS R3I3 Wirewound 600 Wirewound 1 . 33 Wirewound . 33 SWITCHES 5W 5W 1 0W 5W 5W 139-043 139-079 139-047 139-080 139-080 R314 R401 , 402 R433, 434 R435, 436 SI S2 S3 Input selector switch Pushbutton s w i t c h Mode selector switch TRANSFORMERS 146-153 150-01 1 146-134 T30I Power t rans former THYRISTORS & TRIGGERS 044-418 SBS401 , 402 B i l a t e r a l s w i t c h TR401 , 402 Triac FRONT PANEL & T R I M Front panel F ron t pane l end caps B a l a n c e control knob Comp cont ro l knob 131 -004 131-005 044-423 018-154 044-375 090-100 044-375 090-100 044-375 Bass knob ( f ron t ) Bass knob ( rea r ) T r e b l e knob ( f r o n t ) Treb le knob ( rear ) Vo l u me con t ro l knob Mode selector knob I n p u t selector knob LAMPS Pane l i l l urn i na t i on # 1 866 S w i t c h i n d i c a t o r #51 M O U N T I N G SYSTEM She l f bracket ( r i g h t ) S h e l f bracket ( l e f t ) Mount i ng temp l a te # 1 00 Hardwa re package M I S C E L L A N E O U S ITEMS P l a s t i c feet Sh i pp i ng ca r ton 090- 100 044-372 044-372 044-372 058-014 058-021 043-622 043-623 038-179 043-608 01 7-156 044-510 038-61 1 170-021 BE042004 20C1025S7-M4810 Owners manua l L i ne cord M A 6100 S C H E M A T I C P A R T N O . 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