Denon-DRA750-rec-维修说明书手册含电器原理图

DENONHi-Fi Component Tuner AmplifierSERVICE MANUALMODEL DRA-750For European ModelSOLID STATETUNER AMPLIFIERCONTENTSPRECAUTION FOR INSTALLATIONADVICE FOR USE2SPECIFICATIONSNAME AND FUNCTION OF PARTS3CONNECTIONS.......................................................................ABLOCK DIAGRAM ...................................................................6METHOD OF ADJUSTMENTS...........................................................2SEMICONDUCTORS.........…………………10PRINCIPLE OF SUPER SEARCHER SYSTEM (SSS).....…12PRINTED WIRING BOARD PATTERNS AND PARTS LISTETC0658 J TRAP UNIT12ETC0729H TUNER UNIT...................................ETC0730Q CONTROL UNIT.....................................................13ETC9028 POWER PRE UNIT ..............…14WIRING DIAGRAM.....·…16SCHEMATIC DIAGRAM..·,·17EXPLODED VIEW OF CHASSIS AND CABINET8NIPPON COLUMBIA CO..LTD