Denon AVR-2312 Service Manual

Also see for AVR-2312: Owner's manual Protocol guide Getting started

Contents

2CONTENTSSAFETY PRECAUTIONS ..........................................................3NOTE FOR SCHEMATIC DIAGRAM.........................................4TECHNICAL SPECIFICATIONS ...............................................5DIMENSION ...............................................................................5CAUTIONS IN SERVICING .......................................................6Initializing INTEGRATED NETWORK AV RECEIVER ..............6Service Jig .................................................................................6DISASSEMBLY ..........................................................................71. FRONT PANEL ASSY ...........................................................92. HEAT SINK ASSY ...............................................................103. HDMI UNIT ASSY................................................................124. TRANS MAIN ......................................................................15SPECIAL MODE ......................................................................16Special mode setting button ....................................................161. μcom/DSP Version display mode ........................................172. Errors checking mode (Displaying the protection history) ...203. Remote ID Setup mode .......................................................22PROTECTION DIAGRAM ........................................................234. DIAGNOSTIC MODE(Video/Audio (signal) path confirmation mode) .......................24BLOCK DIAGRAM...................................................................29JIG FOR SERVICING ..............................................................59WHEN THE MICROPROCESSOR IS REPLACEDWITH A NEW ONE ...................................................................63PROCEDURE FOR UPGRADINGTHE VERSION OF THE FIRMWARE ......................................63ADJUSTMENT .........................................................................70SURROUND MODES AND PARAMETERS ............................71TROUBLE SHOOTING ............................................................751. POWER ...............................................................................752. Analog video........................................................................763. HDMI/DVI ............................................................................824. AUDIO .................................................................................915. Network/USB .......................................................................946. SMPS ..................................................................................97CLOCK FLOW & WAVE FORM IN DIGITAL BLOCK ...........100LAEVEL DIAGRAM ...............................................................101PRINTED WIRING BOARDS .................................................1077CH AMP (COMPONENT SIDE) ..........................................1077CH AMP (FOIL SIDE) ..........................................................107SPMS (COMPONENT SIDE) ................................................108SMPS (FOIL SIDE) ...............................................................108SPK_PREOUT (COMPONENT SIDE) ..................................109SPK_PREOUT (FOIL SIDE) .................................................110INPUT (COMPONENT SIDE) ............................................... 111INPUT (FOIL SIDE) ...............................................................112FUSE (COMPONENT SIDE).................................................113RS232C_CNT (COMPONENT SIDE) ...................................113FUSE (FOIL SIDE) ................................................................113RS232C_CNT (FOIL SIDE) ...................................................113POSISTOR (COMPONENT SIDE)........................................113POSISTOR (FOIL SIDE) .......................................................113FRONT (COMPONENT SIDE) ..............................................114V.AUX (FOIL SIDE) ...............................................................114FRONT (FOIL SIDE) .............................................................114V.AUX (COMPONENT SIDE) ................................................114HDMI FFC (COMPONENT SIDE) .........................................115GUIDE TOP (COMPONENT SIDE).......................................115GUIDE L (COMPONENT SIDE) ............................................115HDMI FFC (FOIL SIDE) ........................................................115GUIDE TOP (FOIL SIDE) ......................................................115GUIDE L (FOIL SIDE) ...........................................................115USB (COMPONENT SIDE) ...................................................115HP (COMPONENT SIDE) .....................................................115GUIDE R (COMPONENT SIDE) ...........................................115USB (FOIL SIDE) ..................................................................115HP (FOIL SIDE) .....................................................................115GUIDE R (FOIL SIDE)...........................................................115SELECTOR (COMPONENT SIDE) .......................................116RS232C (COMPONENT SIDE).............................................116SELECTOR (FOIL SIDE) ......................................................116RS232C (FOIL SIDE) ............................................................116SIDE_CNT (COMPONENT SIDE) ........................................117SIDE_CNT (FOIL SIDE) ........................................................117VIDEO (COMPONENT SIDE) ...............................................118VIDEO (FOIL SIDE) ..............................................................119FRONT CNT (COMPONENT SIDE) .....................................120FRONT CNT (FOIL SIDE) .....................................................121HDMI (COMPONENT SIDE) .................................................122HDMI (FOIL SIDE) ................................................................123SCHEMATIC DIAGRAMS ......................................................124USB UNIT..............................................................................124FRONT UNIT.........................................................................124AMP UNIT (1/2) .....................................................................125AMP UNIT (2/2) .....................................................................126SPK/PREOUT/REG UNIT (1/4).............................................127SPK/PREOUT/REG UNIT (2/4).............................................128SPK/PREOUT/REG UNIT (3/4).............................................129FRONT_CNT UNIT ...............................................................130CNT/RS232C UNIT (1/4).......................................................131CNT/RS232C UNIT (2/4).......................................................132CNT/RS232C UNIT (3/4).......................................................133CNT/RS232C UNIT (4/4).......................................................134INPUT UNIT ..........................................................................135VIDEO UNIT ..........................................................................136SMPS UNIT ...........................................................................137DIGITAL UNIT (1/16) .............................................................138DIGITAL UNIT (2/16) .............................................................139DIGITAL UNIT (3/16) .............................................................140DIGITAL UNIT (4/16) .............................................................141DIGITAL UNIT (5/16) .............................................................142DIGITAL UNIT (6/16) .............................................................143DIGITAL UNIT (7/16) .............................................................144DIGITAL UNIT (8/16) .............................................................145DIGITAL UNIT (9/16) .............................................................146DIGITAL UNIT (10/16) ...........................................................147DIGITAL UNIT (11/16) ...........................................................148DIGITAL UNIT (12/16) ...........................................................149DIGITAL UNIT (13/16) ...........................................................150DIGITAL UNIT (14/16) ...........................................................151DIGITAL UNIT (15/16) ...........................................................152DIGITAL UNIT (16/16) ...........................................................153WIRING DIAGRAM ................................................................154EXPLODED VIEW .................................................................155PARTS LIST OF EXPLODED VIEW .....................................157PACKING VIEW ....................................................................160PARTS LIST OF PACKING & ACCESSORIES ....................160SEMICONDUCTORS .............................................................1621. IC's ....................................................................................1622. FL DISPLAY.......................................................................193PARTS LIST OF P.C.B. UNIT ...............................................195PCB INPUT ASSY .................................................................195PCB FRONT ASSY ...............................................................197PCB 7CH AMP ASSY ............................................................200PCB MAIN ASSY...................................................................207PCB CNT ASSY ....................................................................211PCB VIDEO ASSY ................................................................213PCB HDMI ASS'Y..................................................................215PCB SMPS ASSY .................................................................224