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DENONHi-Fi Pre AmplifierSERVICE MANUALMODEL PRA-S1PRE AMPLIFIERCONTROL UNITPOWER UNITCONTENTSOPERATING INSTRUCTIONS,,,2-8(INCLUDED BLOCK DIAGRAM,LEVEL DIAGRAM AND SPECIFICATIONS)DISASSEMBLY ...........................................................................9-12ADJUSTMENT…13.14SEMICONDUCTORS................................................15.16PRINTED WIRING BOARD…17-22PARTS LIST OF PRINTED WIRING BOARD....................................................23-34PARTS LIST OF PACKING&ACCESSORIES.......................................................3PARTS LIST OF EXPLODED VIEW (CONTROL UNIT)EXPLODED VIEW(CONTROL UNIT）..…37EXPLODED VIEW (POWERUNI)................................................................PARTS LIST OF EXPLODED VIEW (POWER UNIT)................................................39CONNECTOR PIN FUNCTION (CONTROL UNIT):...:..............................................40WIRING DIAGRAM(CONTROLUNIT).............................................................41WIRING DIAGRAM (POWER UNID ...............................................................,42CONNECTOR PIN FUNCTION (POWER UNIT)..........42SCHEMATIC DIAGRAM ...................................................................43-46NIPPON COLUMBIA CO..LTD.
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