TA-VA777ES SERVICE MANUAL AEP Model UK Model Manufactured under license from Dolby Laboratories Licensing Corporation. Dolby, “DOLBY”, the double-D symbol ;, AC-3 and “Pro Logic” are trademarks of Dolby Laboratories Licensing Corporation. SPECIFICATIONS Frequency response Inputs (Analog) Audio section PHONO:...
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Video section Outputs (Analog) REC OUT Inputs Video: 1 Vp-p 75 ohms (MD/DAT, TAPE, S-video: VIDEO 1, 2, 3): Y: 1 Vp-p 75 ohms Voltage: 200 mV, C: 0.286 Vp-p Impedance: 75 ohms 1 kilohm PRE OUT (FRONT L/R, Outputs Video: 1 Vp-p 75 ohms CENTER, REAR L/R, S-video:...
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
SECTION 1 GENERAL FRONT PANEL SECTION 6 7 8 MASTER VOLUME ? / 1 MULTI CHANNEL DECODING SPEAKERS INPUT AUDIO SPLIT DIGITAL / ANALOG SELECTOR A + B SOUND FIELD PRESET SOUND FIELD MEMORY A.F.D – MODE 2 CH ANALOG DIRECT EQ BANK 5.1CH INPUT OPEN/...
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REAR PANEL SECTION 3 4 5 S-VIDEO VIDEO AC OUTLET MONITOR OUT TUNER IN COAX R AUDIO TAPE CONTROL IN COAX VIDEO 1 IN OPT TV/LD IN OPT PHONO VIDEO 2 SIGNAL GND MD/DAT IN OPT REAR CENTER FRONT MD/DAT OUT OPT 2ND AUDIO OUT IN OPT...
SECTION 2 ADJUSTMENT Electrical adjustments [BIAS adjustment] Conditions : VOLUME : MIN Input signal : No signal (no load) Procedure : Adjust RV4101 on the BIAS board so that 10mV is obtained across the CN4103, CN4153, CN4203, CN4303 and CN4353 on the AMP board respectively. BIAS BOARD BIAS BOARD BIAS BOARD...
TA-VA777ES SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this necessary note is printed in each block.) AC Board For schematic diagrams. For printed wiring boards. PS Board...
TA-VA777ES 3-2. BLOCK DIAGRAM MAIN SECTION DIGITAL L LINE L FUNCTION SWITCH J1301 IC1101 A/D CONV. IC1104 IC2601 IC2602 IC307 TUNER IN INL M TUNER PHONO IN LRCK MUTE CONT MUTE IC346 R-CH CD IN IC1103 EQ AMP Q2602,2603 Q2601...
TA-VA777ES 3-3. BLOCK DIAGRAM DIGITAL SECTION DIRECT L LINE L DIGITAL FILTER D/A CONV. FUNCTION SW IC338 IC320 IC2306 IC301 IC2301 IC2302 DATA IC2304 BCLK IOUT 5 RCOM2 LRCK DSP2 BCKO BCLK MUTE IC347 EQ SWITCH Q2304 WCKO WCLK Q2301-2302...
TA-VA777ES 3-16. SCHEMATIC DIAGRAM DIGITAL SECTION(1/7) • See page 7 for Waveform. • See page 20,21 for Printed Wiring Boards. • See page 45,46 for IC Block Diagrams. OPTICAL OPTICAL TV/LD OPTICAL OPTICAL OPTICAL J302 CD COAXIAL J301 DVD COAXIAL...
TA-VA777ES 3-17. SCHEMATIC DIAGRAM DIGITAL SECTION(2/7) • See page 20,21 for Printed Wiring Boards. • See page 45 for IC Block Diagrams. • See page 51 for IC Pin Function Description.
TA-VA777ES 3-18. SCHEMATIC DIAGRAM DIGITAL SECTION(3/7) • See page 7 for Waveform. • See page 20,21 for Printed Wiring Boards. • See page 47 for IC Pin Function Description.
TA-VA777ES 3-19. SCHEMATIC DIAGRAM DIGITAL SECTION(4/7) • See page 7 for Waveform. • See page 20,21 for Printed Wiring Boards. • See page 47 for IC Pin Function Description.
TA-VA777ES 3-22. SCHEMATIC DIAGRAM DIGITAL SECTION(7/7) • See page 7 for Waveform. • See page 20,21 for Printed Wiring Boards. • See page 44 for IC Block Diagrams. • See page 49 for IC Pin Function Description. The components identified by mark 0 or dotted line with mark 0 are critical for safety.
TA-VA777ES 3-24. SCHEMATIC DIAGRAM AMP SECTION(1/2) • See page 29 for Printed Wiring Boards. The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
TA-VA777ES 3-25. SCHEMATIC DIAGRAM AMP SECTION(2/2) • See page 29 for Printed Wiring Boards. • See page 45 for IC Block Diagrams. The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
TA-VA777ES 3-29. SCHEMATIC DIAGRAM DISPLAY SECTION(2/2) • See page 7 for Waveform. • See page 32,33,36 for Printed Wiring Boards. • See page 45 for IC Block Diagrams.
TA-VA777ES 3-31. PRINTED WIRING BOARD CONTROL JACK SECTION • See page 7 for Circuit Boards Location. 3-32. SCHEMATIC DIAGRAM CONTROL JACK SECTION • See page 46 for IC Block Diagrams.
TA-VA777ES 3-37. SCHEMATIC DIAGRAM POWER SUPPLY SECTION • See page 40,41 for Printed Wiring Boards. 3.15A 250V The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
3-39. IC PIN FUNCTION DESCRIPTION IC347, 348 CXD2712R AUDIO DSP(DIGITAL BOARD) Pin No. Pin Name Description VSS3 — Ground 2 – 5 SOA – SOD Serial data output 6, 7 ECJ0, ECJ1 Conditional jump input terminal (7pin Connected to ground) —...
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Pin No. Pin Name Description — Ground 92 – 94 EA13 – EA15 External RAM address output EA16 Not used TSTA Test data input “L” = normal “H” = test (Connecting to ground) PLDIVF PLL input frequency select “L” = 256Fs “H” = 128Fs (Connecting to ground) PLDIVB PLL output frequency select “L”...
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IC357 HD64F2134FA20-777C (Control COM port assign) (DIGITAL BOARD) Pin No. Pin Name Function RESET Reset XTAL 20MHz master clock EXTAL 20MHz master clock 1: normal/0:boot Ground Ground STBY — P52/SCK0 C-bit input clock P51/RXD0 C-bit input data P50/TXD0 Latch No.7 (“L” t “H” : latch) —...
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Pin No. Pin Name Function P24/A12 Bus address A12 P23/A11 Bus address A11 P22/A10 Bus address A10 P21/A9 Bus address A9 P20/A8 Bus address A8 — Ground P17/A7 Bus address A7 P16/A6 Bus address A6 P15/A5 Bus address A5 P14/A4 Bus address A4 Bus address A3 P12/A2...
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IC349 LC89055W DIGITAL AUDIO I/F RECEIVER (DIGITAL BOARD) Pin No. Pin Name Description DISEL Input data select. (connected to ground.) DOUT EIAJ data and parity flag output terminal (Not used) DIN0 Amplifier integrate data input terminal DIN1 Amplifier integrate data input terminal (Connecting to ground) DIN2 Amplifier integrate data input terminal (Connecting to ground) D.
SECTION 4 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number The components identified by mark 0 or have some differences from the original one. in the exploded views are not supplied. dotted line with mark 0 are critical for safety.
4-2. CHASSIS SECTION T901 not supplied Back panel section not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied RV310 supplied with RV310 not supplied Ref. No. Part No. Description Remarks Ref.
SECTION 5 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • CAPACITORS: • SEMICONDUCTORS parts list may be different from the parts uF: µF In each case, u: µ, for example: specified in the diagrams or the components •...
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AUDIO A AUDIO V Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R4379 1-208-602-11 REGISTER 0.22 < JACK > 0 R4397 1-212-857-00 FUSIBLE 1/4W 0 R4398 1-212-857-00 FUSIBLE 1/4W J1101 1-794-024-11 JACK, PIN 6P(2ND AUDIO,CD) R4399 1-260-011-11 CARBON MELF 1/8W J1102...
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AUDIO V BIAS BLUE LED C VIDEO CTRL-A1 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < CONNECTOR > < DIODE > CN1201 1-784-735-11 CONNECTOR, FFC 13P D101 8-719-070-83 DIODE SELU5E20C-TP15(FL BACK LIGHT) < IC > <...
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CTRL-A1 DIGITAL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C1606 1-164-004-11 CERAMIC CHIP 0.1uF C323 1-125-845-21 FILM 47PF C1701 1-164-004-11 CERAMIC CHIP 0.1uF C324 1-125-845-21 FILM 47PF C325 1-125-845-21 FILM 47PF < CONNECTOR > C326 1-125-845-21 FILM 47PF C327...