Sony-TAAV571-int-sm 电路图 维修手册.pdf

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1、 1 SERVICE MANUALUS Model INTEGRATED AV AMPLIFIER MICROFILM TA-AV571 SPECIFICATIONS RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS 1. SERVICING NOTE. 3 2. GENERAL. 4 3. DIAGRAMS 3-1. Circuit Boards Location. 5 3-2. Waveforms . 6 3-3. Schematic Diagram Main Section . 7 3-4. Printed Wiring Board Main Sec

2、tion . 11 3-5. Printed Wiring Board Power Section . 13 3-6. Printed Wiring Board Display Section . 15 3-7. Schematic Diagram Display Section . 17 3-8. IC Block Diagrams . 19 3-9. IC Pin Function IC401 PD78042FGF-036-3BP (RF System Control) . 21 4. EXPLODED VIEWS 4-1. Case and Back Panel Section . 23

3、 4-2. Front Panel Section . 24 4-3. Chassis Section . 25 5. ELECTRICAL PARTS LIST. 26 SAFETY-RELATED COMPONENT WARNING ! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS

4、 WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. To Exposed Metal Parts on Set 0.15F1.5k AC voltmeter (0.75V) Earth Ground SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety checks before releasing the set to the cust

5、omer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any exposed metal part to earth Ground and from all exposed metal parts to any exposed metal part having a return

6、 to chassis, must not exceed 0.5 mA (500 microampers). Leak- age current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter. The Dat

7、a Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples

8、 of a pas- sive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. RadioFans.CN 收音机爱 好者资料库 3 Fluorescent Indicator Tube, LED All Lit, and Key Check Mode 1. When the plug is insert

9、ed 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. Sequence of Service Modes SECTION 1 SERVICING NOTE Fluorescent I

10、ndicator Tube and LED Check Mode*1 AMP check mode*2 KEY check mode*3 Press the 3 CLASSIC button and DBFB ON/OFF button at the same time. Press the 3 CLASSIC button and DBFB ON/OFF button at the same time. Press the 3 CLASSIC button and DBFB ON/OFF button at the same time. *1 For checking if the fluo

11、rescent indicator tube and LED are lit completely *2 When the AMP check mode is set, “AMP” is displayed on the fluorescent indicator tube. As this mode is not used for servic- ing, perform step 2 to enter the KEY check mode. *3 When the KEY check mode is set, “KEY 0” is displayed on the fluorescent

12、indicator tube. Each press of the button is counted. (This excludes the POWER button) When all buttons are pressed, the AMP check mode is set. Buttons pressed once will not be counted when pressed again. 3. To exit the test mode, press the POWER button. RadioFans.CN 收音机爱 好者资料库 4 SECTION 2 GENERAL LO

13、CATION OF PARTS AND CONTROLS Front Panel 1 POWER button 2 CENTER MODE button 3 DOLBY PRO LOGIC indicator 4 SURROUND MODE buttons (DOLBY, HALL, SIMULATED) 5 SURROUND indicators (DOLBY, HALL, SIMULATED) 6 button 7 Display window 8 + button 9 SOUND CONTROL indicators (BASS, TREBLE, CENTER, REAR) ! CONT

14、ROL MODE buttons (BASS, TREBLE, CENTER, REAR) ! DBFB indicator ! DBFB ON/OFF button ! MASTER VOLUME Knob ! PHONO button ! 5 GAME button ! TUNER button ! 4 MOVIE button ! CD button ! 3 CLASSIC button TAPE button 2 POPS button VIDEO 2 button 1 ROCK button VIDEO 1 button PHONES jack 1234567809! ! This

15、section is extracted from instruction manual. Rear Panel 5 5 SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION NOTE : parts extracted from the component side. : Pattern from the side which enable seeing. NOTE All capacitors are in F unless otherwise noted. pF : F 50WV or less are not indicated except

16、for electrolytics and tantalums. All resistors are in and 1/4W or less unless otherwise speci- fied. : internal component. : nonflammable resistor. : panel designation. THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each b

17、lock.) 6 MAIN SECTION 1 5.2Vp-p 3-2. WAVEFORMS 8MHz T-2 board T-1 board POWER board REAR SP board MAIN board VR board DISPLAY board H.P board IC202 2 IC401 # X1 4.2Vp-p 5MHz PANEL SECTION Note: The components identi-fied by mark ! or dotted line with mark ! are critical for safety. Replace only with

18、 part number specified. B+: B+ Line B: B Line Voltage and waveforms are dc with respect to ground under no- signal conditions. no mark : STOP Voltages are taken with a VOM (Input impedance 10M). Voltage variations may be noted due to normal production toler- ances. Waveforms are taken with a oscillo

19、scope. Voltage variations may be noted due to normal production toler- ances. Circled numbers refer to waveforms. Signal path. : FM 19 20 11121314151617181920 10987654321 SUPPLY VOL/LOUDBASSTREBLE SPEAKER ATT VOL/LOUDBASSTREBLE SPEAKER ATT SERIAL BUS DECODER/LATCH SCL SDA DIG GND OUT LEFT OUT RIGHT

20、B OUT (R) B IN (R) B OUT (L) B IN (L) LOUD (L) LOUD (R) R TREBLE (R) TREBLE (L) A GND VS IN (R) N.C N.C L 1 2 3 4 5 6 7 8 9 15 10 11 12 13 14 16 21 18 19 25 17 24 22 2320 34 32 33 29 30 35 28 31 27 26 36 40 39 38 37 41 42 NOISE FILTER NOISE CH BALANCE CONTROL VR CONTROL LPF V REF VR VR NOISE GENERAT

21、OR VCAVCA VCAVCA VCAVCA VCAVCA LPF LPF RECTRECTRECTRECT P. S.P. S. CMODE MUTE DIVIDEROSC CONTROL CTRIM LOG DIFF LOG DIFF DUAL T CONTROL L-IN R-IN VSS CLK DATA VCC L-OUT R-OUT S-OUT C-OUT ENABLE OSC1 CMODE-CAP. C-TRIM DC CUT R-BPF1 R-BPF2 R-BPF3 DC CUT DC CUT L-R RECT L+R RECT VCS-TH VCS-1 VCS-2 BPF1

22、 BPF2 VREF S-CH DC OUT C-CH DC OUT L-CH DC OUT R-CH DC OUT VREF L-BPF1 L-BPF2 L-BPF3 DC CUT DC CUT R RECT L RECT VLR-TH VLR-1 VLR-2 IC201 LA2786 3-8. IC BLOCK DIAGRAMS IC101 LC7822 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 CONTROL LATCH SHIFT RESISTOR LEVEL SHI

23、FT CL DI CE VEE OUT IN OUT IN OUT IN VSS S RESET VDD OUT ININ OUT IN OUT IN IC301, 302 TDA7315 156 + + 201918171615141321222324 234789101211 + DEC IN-FILTER (40kHz) VDD ADM-CONTSRAM ADM OUT-FILTER (7k/5k) B-NR DC-OUT VOL/MUTE S-TRIM INV-PHASE R+DELAYL+DELAY A B A B A B A B A B A B A B LR L+R (6dB) A

24、 B A.GND L-OUT R-OUT VREF S-OUT DELAY-OUT S-IN R-IN L-IN VCC NR-DET ENABLE DATA CLK D.GND DC-CUT VDD OSC OSC NR-IREF DC-CUT IC202 LV1016 PROTECTOR DRIVE 123456789101112131415 PRE DRIVE PRE DRIVE BIAS CIRCUIT REGDRIVE MUTE +VOUT1 VOUT1 COMP1 NF1 IN1 GND IN2 NF2 COMP2 VOUT2 +VOUT2 VCC1 VCC2 VEE IC701,

25、 702 PC2581V 21 3-9. IC PIN FUNCTION IC401 RF SYSTEM CONTROL (PD78042FGF-036-3BP) Pin No.Pin NameI/OFunction O O O O O O O I I O O O O I I I I I I O O O O O O O L segment signal output +5V power supply Ground Chip enable signal output (for IC101) Chip enable signal output (for IC201, 202) Serial clo

26、ck output Serial data output DBFB ON/OFF drive signal output Power-relay ON/OFF drive signal output Power check input (Connected to ground) Reset signal input Ground Ground Ground Mute control output (for IC701, 702) Surround speaker relay ON/OFF drive signal output Front speaker relay ON/OFF drive

27、signal output Headphone relay ON/OFF drive signal output PHONES jack in distinction pin Destination distinction pin (Connected to ground) Key matrix input Key matrix input +5V power supply +5V power supply Backup signal input Not used Ground Xtal (5 MHz) Xtal (5 MHz) BASS LED drive signal output TRE

28、BLE LED drive signal output CENTER LED drive signal output REAR LED drive signal output DBFB LED drive signal output DOLBY LED drive signal output 17 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 DIG2DIG8 +5V VSS CE-FUNC CE.PRO/DELAY CLK DATA DBF

29、B POWER-RY P.CHECK RESET VSS VSS AVSS IC.MUTE SURR.RY FRONT.RY HP.RY HP.SW VERSION KEY.2 KEY.1 AVDD AV.REF BACKUP XT2 VSS X1 X2 BASS LED TREBLE LED CENTER LED REAR LED DBFB LED DOLBY LED 22 Pin No.Pin NameI/OFunction HALL LED SIMULATED LED VOL.B VOL.A PROTECT SIRCS VSS SDA.2 SDA.1 SCL +5V VSS FUNC.M

30、UTE BRIDGE.RY STANDBY LED VSS VSS S18S7 VLOAD S6S1 NC NC DIG1 HALL LED drive signal output SIMULATE LED drive signal output Volume encoder signal input Volume encoder signal input Protect signal input SIRCS signal input Ground Volume IC signal Volume IC signal Volume IC signal +5V power supply Groun

31、d Line mute control output Bridge relay drive signal output STANDBY LED drive signal output Ground Ground FL segment signal output 28V power supply for FLUORESCENT INDICATOR TUBE FL segment signal output Not used Not used FL segment signal output 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

32、70 71 7277 78 79 80 O O I I I I I/O I/O I/O O O O O O O 23 SECTION 4 EXPLODED VIEWS NOTE: Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded vie

33、ws are not supplied. Hardware (# mark) list and accessories and pack- ing materials are given in the last of this parts list. The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. 4-1. CASE AND BACK PANEL SECTION 2 3 4 1 7 6

34、5 9 9 9 8 #1 #1 #1 #1 #1 #1 #1 #1 #1 #3 #3 T901 #1 #1 #1 #1 FRONT PANEL not supplied CNP901 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark * 73-703-244-00BUSHING (2104), CORD * 84-979-945-01CASE (414532) 93-704-366-01SCREW (CASE) (M3X8) !CNP901 1-690-609-21CORD, POWER !T9011-431-

35、206-11TRANSFORMER, POWER * 11-664-990-11H.P BOARD * 21-664-988-11T-2 BOARD * 31-664-987-11T-1 BOARD * 41-664-986-11POWER BOARD * 54-979-954-81PANEL, BACK 63-704-515-01SCREW (BV/RING) #1 24 4-2. FRONT PANEL SECTION Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark 514-980-107-01KNOB

36、(VOL) 523-350-426-01SPRING, RING 53X-4948-432-1PANEL ASSY, FRONT 544-979-942-31WINDOW 554-979-937-01FILTER * 564-982-462-01HOUSE, LED 574-963-404-21EMBLEM (5-A), SONY 584-979-937-21FILTER 594-977-358-11CUSHION (8X12.5) 604-979-936-01BUTTON (P-T) 614-979-941-01BUTTON (SUR) 624-979-935-01BUTTON (F-6)

37、* 631-664-989-11VR BOARD * 644-921-941-01CUSHION (FL) * 654-979-943-01HOLDER, FL TUBE * 66A-4392-768-A DISPLAY BOARD, COMPLETE 671-769-867-11WIRE (FLAT TYPE) (5 CORE) 681-773-183-11WIRE (FLAT TYPE) (23 CORE) 694-951-620-01SCREW (2.6X8), +BVTP * 704-982-814-01LENS (SUR) * 714-982-816-01BOX (SUR), LED

38、 * 724-982-815-01LENS (CON) * 734-982-817-01BOX (CON), LED FL4011-517-512-11INDICATOR TUBE, FLUORESCENT not supplied Supplied with RV401 53 66 67 69 68 69 63 65 64 64 71 70 60 57 56 73 72 55 61 54 52 51 58 56 62 59 FL401 25 4-3. CHASSIS SECTION 104 106 105 107 104 103 101 102 Q753 Q754 Q603 Q604Q654

39、 Q653 Q704 Q703 not supplied not supplied not supplied not supplied #1 #1 #1 #1 #1 #1 #1 #1 #1 #1 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark 1013-905-609-01SCREW (TRANSISTOR) * 1021-664-984-11REAR SP BOARD * 103A-4392-766-A MAIN BOARD, COMPLETE 1044-985-642-01CUSHION 1054-977

40、-358-11CUSHION (8X12.5) 106X-3371-405-1FOOT (SMALL) ASSY * 1074-979-946-01PLATE (432), BOTTOM Q6038-749-010-25TRANSISTOR MN2488-OPY-M Q6048-749-010-26TRANSISTOR MP1620-OPY-M Q6538-749-010-25TRANSISTOR MN2488-OPY-M Q6548-749-010-26TRANSISTOR MP1620-OPY-M Q7038-749-010-25TRANSISTOR MN2488-OPY-M Q7048-

41、749-010-26TRANSISTOR MP1620-OPY-M Q7538-749-010-25TRANSISTOR MN2488-OPY-M Q7548-749-010-26TRANSISTOR MP1620-OPY-M 26 SEMICONDUCTORS In each case, u: , for example: uA.: A., uPA.: PA., uPB.: PB., uPC.: PC., uPD.: PD. CAPACITORS uF : F COILS uH : H Due to standardization, replacements in the parts lis

42、t may be different from the parts specified in the diagrams or the components used on the set. Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. RESISTORS All resistors are in ohms METAL: Metal-film resist

43、or METAL OXIDE: Metal Oxide-film resistor F : nonflammable The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number speci- fied. SECTION 5 ELECTRICAL PARTS LIST Note: When indicating parts by reference number, please include the board name

44、. Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark *A-4392-768-A DISPLAY BOARD, COMPLETE * *4-921-941-01CUSHION (FL) *4-979-943-01HOLDER, FL TUBE C4011-162-306-11CERAMIC0.01uF20%16V C4021-162-306-11CERAMIC0.01uF20%16V C4031-124-903-11ELECT1uF20%50V C4041-124-903-11ELECT1uF20%50V C4

45、051-126-923-11ELECT220uF20%10V C4061-124-907-11ELECT10uF20%50V C4071-124-907-11ELECT10uF20%50V C4081-164-159-11CERAMIC0.1uF50V C4091-136-165-00FILM0.1uF5%50V C4101-164-159-11CERAMIC0.1uF50V C4111-164-159-11CERAMIC0.1uF50V C4121-161-494-00CERAMIC0.022uF25V C4131-162-294-31CERAMIC0.001uF10%50V C4141-1

46、61-494-00CERAMIC0.022uF25V * CN4011-568-848-11SOCKET, CONNECTOR 5P * CN4021-568-865-11SOCKET, CONNECTOR 23P CN4031-750-194-11CONNECTOR, BOARD TO BOARD 4P CN4051-770-397-11HOUSING, CONNECTOR(PC BOARD)4P D4018-719-014-34DIODE UZP-3.9BA-TP D4028-719-987-63DIODE 1N4148M D4038-719-987-63DIODE 1N4148M D40

47、48-719-987-63DIODE 1N4148M D4058-719-987-63DIODE 1N4148M D4068-719-987-63DIODE 1N4148M D4078-719-313-45DIODE SEL6810A-TH10 (BASS SOUND) D4088-719-313-45DIODE SEL6810A-TH10 (TREBLE SOUND) D4098-719-313-45DIODE SEL6810A-TH10 (CENTER SOUND) D4108-719-313-45DIODE SEL6810A-TH10 (REAR CONTROL) D4118-719-032-98DIODE SEL5820A (DBFB) D4128-719-032-98DIODE SEL5820A (DBFB