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Sony TA-AV571 Service Manual
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Sony TA-AV571 Service Manual

Integrated av amplifier
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TA-AV571
SERVICE MANUAL
US Model
SPECIFICATIONS
INTEGRATED AV AMPLIFIER
MICROFILM
— 1 —

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Summary of Contents for Sony TA-AV571

  • Page 1 TA-AV571 SERVICE MANUAL US Model SPECIFICATIONS INTEGRATED AV AMPLIFIER MICROFILM — 1 —...

  • Page 2: Table Of Contents

    WITH MARK ! 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. — 2 —...

  • Page 3: Servicing Note

    SECTION 1 SERVICING NOTE [Fluorescent Indicator Tube, LED All Lit, and Key Check Mode] 1. When the plug is inserted into the outlet while pressing the 3 CLASSIC button, the fluorescent indicator tube and LED will light up completely. 2. The mode changes as follows each time the 3 CLASSIS button and DBFB ON/OFF button are pressed together after 1.

  • Page 4: General

    SECTION 2 GENERAL LOCATION OF PARTS AND CONTROLS Front Panel !¡ !™ !£ 3 4 5 @£ !ª !¶ !¢ @∞ @¢ @™ @¡ @º !• !§ !∞ !™ DBFB ON/OFF button 1 POWER button 2 CENTER MODE button !£ MASTER VOLUME Knob 3 DOLBY PRO LOGIC indicator !¢...

  • Page 5: Diagrams

    SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS 3-2. WAVEFORMS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) MAIN SECTION NOTE • : parts extracted from the component side. 5.2Vp-p •...

  • Page 12: Ic Block Diagrams

    3-8. IC BLOCK DIAGRAMS IC101 LC7822 IC202 LV1016 INV-PHASE ADM-CONT SRAM L+DELAY R+DELAY IN IN VOL/MUTE OUT-FILTER LEVEL SHIFT – DC-OUT IN-FILTER (7k/5k) (40kHz) L–R S-TRIM LATCH RESET (–6dB) B-NR SHIFT RESISTOR IC201 LA2786 BPF1 NOISE NOISE FILTER BPF2 NOISE GENERATOR DATA BALANCE...

  • Page 13: Ic Pin Function

    3-9. IC PIN FUNCTION • IC401 RF SYSTEM CONTROL (µPD78042FGF-036-3BP) Pin No. Function Pin Name L segment signal output 1—7 DIG2—DIG8 +5V power supply — Ground — Chip enable signal output (for IC101) CE-FUNC Chip enable signal output (for IC201, 202) CE.PRO/DELAY Serial clock output Serial data output...
  • Page 14 Pin No. Pin Name Function HALL LED drive signal output HALL LED SIMULATE LED drive signal output SIMULATED LED Volume encoder signal input VOL.B Volume encoder signal input VOL.A Protect signal input PROTECT SIRCS signal input SIRCS — Ground Volume IC signal SDA.2 Volume IC signal SDA.1...

  • Page 15: Exploded Views

    SECTION 4 EXPLODED VIEWS NOTE: The components identified by mark ! • Hardware (# mark) list and accessories and pack- • Items marked “*” are not stocked since they are or dotted line with mark ! are critical ing materials are given in the last of this parts list. seldom required for routine service.

  • Page 16: Front Panel Section

    * 66 A-4392-768-A DISPLAY BOARD, COMPLETE 1-769-867-11 WIRE (FLAT TYPE) (5 CORE) * 56 4-982-462-01 HOUSE, LED 1-773-183-11 WIRE (FLAT TYPE) (23 CORE) 4-963-404-21 EMBLEM (5-A), SONY 4-951-620-01 SCREW (2.6X8), +BVTP 4-979-937-21 FILTER * 70 4-982-814-01 LENS (SUR) 4-977-358-11 CUSHION (8X12.5)

  • Page 17: Chassis Section

    4-3. CHASSIS SECTION Q753 Q754 Q603 Q604 Q654 Q653 not supplied Q704 Q703 not supplied not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-905-609-01 SCREW (TRANSISTOR) Q604 8-749-010-26 TRANSISTOR MP1620-OPY-M * 102 1-664-984-11 REAR SP BOARD Q653 8-749-010-25 TRANSISTOR MN2488-OPY-M...

  • Page 18: Electrical Parts List

    SECTION 5 DISPLAY ELECTRICAL PARTS LIST Note: • SEMICONDUCTORS • Due to standardization, replacements in the parts list The components identified by mark ! In each case, u: µ , for example: may be different from the parts specified in the or dotted line with mark ! are critical uA...: µ...
  • Page 19 DISPLAY MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R448 1-249-429-11 CARBON 1/4W S419 1-762-751-11 SWITCH, TACTILE (TUNER) S420 1-762-751-11 SWITCH, TACTILE (CD) R449 1-249-429-11 CARBON 1/4W S421 1-762-751-11 SWITCH, TACTILE (TAPE) R450 1-249-437-11 CARBON 1/4W S422 1-762-751-11 SWITCH, TACTILE (VIDEO 2)
  • Page 20 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C313 1-136-165-00 FILM 0.1uF C208 1-126-963-11 ELECT 4.7uF C209 1-126-963-11 ELECT 4.7uF C314 1-136-165-00 FILM 0.1uF C210 1-126-923-11 ELECT 220uF C315 1-136-165-00 FILM 0.1uF C211 1-136-165-00 FILM 0.1uF C212 1-136-165-00 FILM...
  • Page 21 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C807 1-126-967-11 ELECT 47uF < JACK > C808 1-126-967-11 ELECT 47uF J101 1-766-558-41 JACK, PIN 8P (PHONO, TUNER, CD IN/TAPE REC OUT) C809 1-126-960-11 ELECT C810 1-126-960-11 ELECT J102 1-766-558-31 JACK, PIN 8P C811...
  • Page 22 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < RESISTOR > R225 1-249-421-11 CARBON 2.2K 1/4W F R226 1-249-411-11 CARBON 1/4W R101 1-249-417-11 CARBON 1/4W F R227 1-249-417-11 CARBON 1/4W F R301 1-249-429-11 CARBON 1/4W R102 1-249-417-11 CARBON 1/4W F...
  • Page 23 MAIN POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R701 1-249-417-11 CARBON 1/4W F < RELAY > R702 1-249-439-11 CARBON 1/4W R703 1-249-413-11 CARBON 1/4W F RY601 1-515-920-11 RELAY (24V) RY701 1-515-920-11 RELAY (24V) R704 1-249-439-11 CARBON 1/4W RY702...
  • Page 24 TA-AV571 REAR SP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-664-984-11 REAR SP BOARD MISCELLANEOUS ************* ************* < CONNECTOR > 1-769-867-11 WIRE (FLAT TYPE) (5 CORE) 1-773-183-11 WIRE (FLAT TYPE) (23 CORE) CN103 1-770-725-11 CONNECTOR, BOARD TO BOARD 4P...

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