SERVICE MANUAL DIGITAL THEATER AMPLIFIER TO ALPINE Home Page 12 / 04-A 68E37809S01 MRA-D550...
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<Cautions for Safe Repair Work> The following cautions will prevent accidents in the workplace and will ensure safe products. *The symbols indicate caution is needed to prevent injuries and damage to property. The symbols and their meanings follow. If you ignore this symbol and handle the product incorrectly or unsafely, Warning serious injury or death may result.
MRA-D550 Contents Packing Assembly Parts List Packing Method View Specifications Extension Cable Block Diagram Parts Layout on P.W.Boards and Wiring Diagram 8 to 10 Schematic Diagram 11 to 18 Terminal Voltage of IC/TR 19 to 30 Description of IC Terminal...
MRA-D550 Packing Assembly Parts List Symbol Description Symbol Description Part No. Part No. 15-00938Z01 COVER,TERMINAL %1 103-3 09-02927Z01 ASSY,ATFD-0600-01A 102-1 03-01282Z01 SCR,6TP 4X20 ZB A #1 104 68-00323Z42 O/M AOAM 102-2 03-01280Z01 SCR,CUS 3X12 NN $1 104 68-00323Z43 O/M AOEU...
MRA-D550 Specifications Power Output (20Hz/1kHz/10kHz input, 1% T.H.D.) Digital In Mode at H/U input ..................Front ch : 60W Analog In Mode at H/U input ..............Front/Rear/Center ch : 60W Analog In Mode at Changer input ................Front ch : 60W Power Output (20Hz/31.5Hz input, H/U Volume Max(Step 35))
MRA-D550 Extension Cable *Always connect the Extension Cable when making checks of voltage and repair. LED P.W.Board CB3001 CB1705 CB1704 CB1402 MAIN P.W.Board (1) 01E37771S01 CB2102 CB2101 (2) 01E37772S01 DSP P.W.Board (3) 01E37773S01 TO CONTENTS - 6 -...
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Parts Layout on P.W.Boards and Wiring Diagram(1/3) MRA-D550 TO CONTENTS Orange Color Pattern:Component Side Pattern NOTE : #1 : For North American Model Only, Blue Color Pattern:Foil Side Pattern $1 : For European Model Only, %1 : For General Foreign Model Only, Others:Common.
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Parts Layout on P.W.Boards and Wiring Diagram(2/3) MRA-D550 TO CONTENTS NOTE : #1 : For North American Model Only, $1 : For European Model Only, %1 : For General Foreign Model Only, MAIN P.W.Board (Foil Side View) Others:Common. TP11702 C1104...
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Parts Layout on P.W.Boards and Wiring Diagram(3/3) MRA-D550 TO CONTENTS LED P.W.Board (Component Side View) DSP P.W.Board From MAIN P.W.Board (CB1704) (Component Side View) To CB2102 CB3001 CB2102 E2130 E2126 C2145 Q3002 C2234 C2121 R2155 IC2105 IC2102 LD3001 C2238 R2160 R2159...
MRA-D550 Description of IC Terminal 70F3033BYGC : IC1707 Symbol Terminal Description RL_ON(NC) No connect terminal. SCL_2 Digital AMP control terminal. 932_SO DSP Decoder control terminal. 932_SI 932_SCK EVDD_33 3.3V connect terminal. EVSS GND connect terminal. 932_CS DSP Decoder control terminal.
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MRA-D550 Symbol Terminal Description BUS_R/W Ai-NET R/W control terminal. BUS_RS Ai-NET RS control terminal. BUS_SOUT Ai-NET SOUT control terminal. BUS_SIN Ai-NET SIN control terminal. BVDD33 +3.3V connect terminal. BVSS GND connect terminal. BUS_SCLK Ai-NET SCLK control terminal. No connect terminal.