Download Luxman 5M21 & 5M20 Power Amplifier Service Manual
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1-- , P8·1079 - - - I - - I I I L.CH.I 81. I , ' I I ~o-, : - ~ ---------, I I I JJ I I I r-- - - l ~B-l0BO r I I I LUXMA-N I r I I I I I ,~ I I IC '-'-f I '* '* I ~ ~ I .. 1 • I 5M21 I I I I L I I R307a I ~/~: : I I /1 CIRCUIT STEREO POWER AMPLIFIER "LABORATORY REFERENCE SERIES" I I I I I I P8-1678 ULTIMATE HIGH FIDELITY STEREO COMPONENT -':30':' 2~P L l~: ..J BIAS CIRCUIT EJ?': ~T~ m--o I o THERMAL +61Y P -61Y sWim o +On +61Y/ I I r--------(l R -61Y I I I ~r I I I I I I I r-----l I DMl- 01 7 OY, I I I I I ~ I Ie I I I I OV .D '* I I I I ~ I ~ I I I I I I I I I I I I J L I (1 CIRCUIT I L l ! ~~~r ~3013b 1 UNLESS OTHERWISE SPECIFIED, ALL RESISTORS ARE IN OHM %WATT, ALL CAPACITORS ARE IN FARAD. 2 TRANSISTORS AND DIODES MAY BE REPLACED WITH ANY TYPES HAVING COMPARABLE RATINGS. 3 DUE TO CONTINUED IMPROVEMENTS LUX RESERVE THE RIGHT TO ALTER THE CIRCUT OR SPECIFICATIONS. I ..J BIAS CIRCUIT C209bJ; L _J ----------61V r---I --040la -- I I - - , - - r - - - - - - - - - - - - - - - - - - - - - - ,- - - - - - - - - - - - - - - - lI I + t: 67V I I - I 040la 0403 0501 2B.5V .-------i.~AC AC +1 + ;:. ~~ AC OSOla RSOla lOKI, ...r::l..+ ;;;- LEFT CHANNEL ~ ~ AC SPEAKERS RS04a 18K I' ... I 4.71 ~w , ~ I R402a I I I 040lb D40lb R403b P8-1081 P8·1082 PHONE PEAK INDICATOR OUT ~-B7Y '- -67V I I I I +~ RIGHT CHANNEL -+ I ; I ... 0"" am' '------------ ~~.~ ~ I ~ B C A G I OSOlb ¥ __ - - - - n~UID j*~ ________ l-I __ ~PDL&~ RS04b I I _____________ ..J