Manuals / Sony / Home Audio / Stereo Receiver

Sony service manual STR-DE845/DE945, Page Page

Models: STR-DE845

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STR-DE845/DE945

4-13. SCHEMATIC DIAGRAM – OSD/OSD JOINT (H) Boards (DE945) – See• page 42 for waveforms. •See page 42 IC Block Diagrams.

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Sony service manual STR-DE845/DE945, Page Page

Contents

E Model Australian Model Chinese Model PX Model SPECIFICATIONSSERVICE MANUAL STR-DE845/DE945Flexible Circuit Board Repairing Notes on chip component replacementDISASSEMBLY TABLE OF CONTENTS4.DIAGRAMS SAFETY CHECK-OUTql qj SECTION GENERAL1 2 3 wd waqs qa q qkqj qh qg qfqd1 wire flat type 15 core 2 connectorCN1 CNP10 SECTION DISASSEMBLYCASE 5.1 IN BOARD, AU SW BOARD, TUNER1 wire flat type 21 core CN55 4 DIGITAL board VIDEO/OSD/JOINT 1 H/OSD JOINT HS-VIDEO/DIGITALBOARD HEAT SINKDE945 VOL BOARD, MAIN BOARD6 connector CNS305 7 three screws BVTP 1 wire flat type 23 core CNS111 4 VOL boardAll Clear Mode Fluorescent Indicator Tube Test ModeSECTION 3 TEST MODE Factory Set ModeMEMO 4-1.BLOCK DIAGRAM – MAIN Section 1/2 – STR-DE845/DE945 SECTION DIAGRAMSSTR-DE845/DE945 4-2.BLOCK DIAGRAM – MAIN Section 2/2 –STR-DE845/DE945 V. SWITCH board E/PX BIAS L board S-VIDEOboard Note on Schematic DiagramNote on Printed Wiring Board SP board DC 1 board POWER board DISPLAY boardPage STR-DE845/DE945Page Page PagePIN FUNCTION STR-DE845/DE945Page Page Page STR-DE845/DE945Page 16 Page• Semiconductor Location STR-DE845/DE945Page Page Page STR-DE845/DE945• Semiconductor Location Page TO VIDEO BOARD TO JOINT 1 H BOARD STR-DE845/DE945Page STR-DE845/DE945Page STR-DE845/DE945Semiconductor Location Page Page STR-DE845/DE945•Semiconductor Location STR-DE845/DE945Page Page Page STR-DE845/DE945STR-DE845/DE945 Page Page Page Page STR-DE845/DE945Page STR-DE845/DE945• Semiconductor Location PagePage STR-DE845/DE945Page Page Page Page 35Ref. No STR-DE845/DE945• Semiconductor Location Page Page Page STR-DE845/DE945Page Page Page Page Page Page Page Page Page STR-DE845/DE945Page Page 4-23.SCHEMATIC DIAGRAM – MAIN Board 3/3 –STR-DE845/DE945 Page Page Page Page Page Page Page Page Page PagePage Page STR-DE845/DE945Page Page Page Page Page Page PagePage Page Page Page STR-DE845/DE945Page Page Page Page PagePage STR-DE845/DE945Page Page Page Page PagePage STR-DE845/DE945Page PageTO DC BOARD Page Page TO DC 1 BOARD Page Page STR-DE845/DE945• Semiconductor Location Page 4-29.SCHEMATIC DIAGRAM – DC 1/DC 2 Boards –STR-DE845/DE945 Page Page Page PageRef. No STR-DE845/DE945•Semiconductor Location Page 4-31.SCHEMATIC DIAGRAM - AC/SP BoardsSTR-DE845/DE945 Page Page Page– DIGITAL Board – • IC Block DiagramsWaveforms DISPLAY BoardTC9273N-014MAIN Board IC301TC9273N-004MAIN Board IC303IC1101 IC1005 TC74ACT153AF EL DIGITAL BoardIC1206 NJM2103M-TE2DIGITAL BoardIC1503 AK4527 DIGITAL Board IC1402 IDT71V016S15PH-AUTLDIGITAL BoardIC1403 TC74VHC367FT EL DIGITAL Board IC2002 BA7622 OSD Board DE945Description 4-32.IC PIN FUNCTION DESCRIPTIONPin No Pin NameDOSEL0 SCLK SDATA DIG-INB • DIGITAL BOARD IC1401 CXD2712R AUDIO DSP CLKI • DIGITAL BOARD IC1503 AK4527 A/D, D/A CONVERTER “L” on RDS CLOCK 1FRONT PANEL SECTION 13 12 12 SECTION EXPLODED VIEWS59 60 #1 2CHASSIS SECTION-152 #1 56 55 #1 623 CHASSIS SECTION-2 5.1 IN SECTION ELECTRICAL PARTS LISTAU SW BIAS R BIAS CBIAS L BIAS LSDIGITAL Ref. No DIGITALRef. No DIGITALDIGITAL DISPLAYRef. No DISPLAYPart No DISPLAYDISPLAY H. PJOINT 1 H MAINRef. No MAINRef. No MAINPart No MAINPart No MAINMAIN MUTINGRef. No S-VIDEO POWEROSD JOINT H ROTARYVIDEO VIDEOS-VIDEO V. SWITCH Home Audio Division Company STR-DE845/DE945Sony Corporation 9-929-208-11