Sony-TAF448EB-int-sm 电路图 维修手册.pdf

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1、MICROFILM TA-F448EB INTEGRATED STEREO AMPLIFIER +11 3 SERVICE MANUALAEP Model UK Model SPECIFICATIONS Amplifier section DIN power output 85 W + 85 W (4 ohms at 1 kHz) 55 W + 55 W (8 ohms at 1 kHz) Total harmonic distortion Less than 0.008% (at 10 W output) Frequency response PHONO (20 Hz 20 kHz): RI

2、AA equalization curve 0.5 dB TUNER, CD, AUX, TAPE1/DAT, TAPE2/MD: 7 Hz 100 kHz dB S/N (network A) PHONO: 94 dB TUNER, CD, AUX, TAPE1/DAT, TAPE2/MD: 105 dB Output voltage/impedance RECOUT: 150 mV, 1 kilohm PHONES: 10 mW (at 8 ohms) Speakers impedance 4 16 ohms, 8 16 ohms (SPEAKERS A + B) Damping fact

3、or 100 (8 ohms, 1 kHz) General System Power amplifier: Pure-complementary SEPP OCL power amplifier with all stages directly coupled Preamplifier: Low-noise, equalizer amplifier Power requirements 230 V AC, 50/60 Hz Power consumption 180 W Dimensions (approx.) (w/h/d) 430 135 365 mm incl. projecting

4、parts and controls Mass (approx.) 6.8 kg Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 2 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 OPERATI

5、ON. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. TABLE OF CONTENTS 1.GENERAL.3 2.DISASSEMBLY. 5 3.ELECTRICAL ADJUSTMENTS. 7 4.DIAGRAMS. 8 4-1.Printed Wiring Boards . 10 4-2.Schematic Diagram . 15 5.EXPLODED VIEWS. 1

6、9 6.ELECTRICAL PARTS LIST. 22 RadioFans.CN 收音机爱 好者资料库 3 SECTION 1 GENERAL This section is extracted from instruction manual. RadioFans.CN 收音机爱 好者资料库 4 5 Note: Follow the disassembly procedure in the numerical order given. CASE ASSY SECTION 2 DISASSEMBLY FRONT PANEL SECTION 1 two screws (case 3 TP2)

7、2three screws (case 3 TP2) 3two screws (case 3 TP2) 3two screws (case 3 TP2) 4case assy 1connector (CN201) 2connector (CN701) 3connector (CN405) 4connector (CN809) 5connector (CN104) 6 five screws (3 8) 7 two screws (3 8) 8 screw (BVTP2.6 8) 8 screw (BVTP3 8) 9 front panel section 6 INPUT BAORD, MAI

8、N (B) BAORD 1two connectors (CN301, 302) 2connector (CN104) 3three screws (3 8) 4Remove the INPUT board to direction of the arrow A. 5two connectors (CN16, 103) !four screws (H) 6two connectors (CN401, 402) !screw (3 8) 8connector (CN405) 7two connectors (CN403A, 404A) 9Break the soldering of three

9、power transformer leads. !three screws (3 8) !heat sink !two screws (transistor) !MAIN (B) board A !heat sink !two screws (transistor) !four screws (H) MAIN (A) BOARD 1connector (CN201) 2five screws 3MAIN (A) board 7 + BIAS ADJUSTMENT Adjustment Procedure: 1.Rotate fully the bias adjusting semi-fixe

10、d resistors (RV301 (L- CH), RV351 (R-CH) to the minimum position (counterclock- wise). 2.Connect a digital voltmeter to the CN406 (L-CH) and CN407 (R-CH). 3.Set the slidack to 0 V AC, and press the POWER button (ON) on the set. 4.Raise gradually the slidack voltage up to the rated voltage (230 V AC)

11、. 5.At this time, confirm that the speaker relay is turned on (it will click). 6.Adjust the RV301 (L-CH) and RV351 (R-CH) so that a reading of digital voltmeter is from 10 mV to 20 mV. 7.Return the slidack to 0 V AC, and press the POWER button (OFF) on the set. pin 1pin 3 CN406 (L-CH)+ CN407 (R-CH)+

12、 Connection and Adjustment Location: MAIN (A) BOARD Component side MAIN (B) BOARD Component side digital voltmeter C372 C322 RV351 (R-CH) RV301 (L-CH) BIAS Adjustment C459C409 CN407 31 SECTION 3 ELECTRICAL ADJUSTMENT CN406 13 8 IC Block Diagram IC401PC1237HA SECTION 4 DIAGRAMS 12345678 OVER LOAD DET

13、 F/F OFFSET DET LATCH/ AUTORESET VCC ON MUTE AC OFF DET VCC 9 Circuit Boards Location MAIN (B) board SP-TM board INPUT board MAIN (A) board VOL boardLED-F board SW-F board SP-SW board HP board LED-P board 19 SECTION 5 EXPLODED VIEWS Items marked “*” are not stocked since they are seldom required for

14、 routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference num- ber in the exploded views are not supplied. Accessories and packing materials are given in the last of the electrical parts list. NOTE: -XX and -X mean standardized parts, so the

15、y may have some difference from the original one. Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) Parts ColorCabinets Color Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark 14-967-961-01 SCREW (3X8) 2X-4947-025-1 FOOT ASSY 37-685-872-09 SCREW +BVTT 3

16、X8 (S) 44-951-620-01 SCREW (2.6X8), +BVTP 53-363-099-61 SCREW (CASE 3 TP2) 6X-4948-403-1 CASE ASSY 1 1 1 1 2 2 1 5 5 5 5 6 3 1 1 4 not supplied not supplied (1) CASE SECTION The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specifie

17、d. 20 60 62 61 59 60 57 56 69 55 54 58 56 53 52 51 6368 67 63 66 65 64 63 63 supplied with J701 supplied with S602 supplied with RV201 not supplied not supplied supplied with S601 not supplied S1 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark 614-980-199-01 BUTTON (POWER) * 621-6

18、62-195-11 LED-P BOARD 634-951-620-01 SCREW (2.6X8), +BVTP * 641-662-197-11 HP BOARD * 651-662-196-11 SP-SW BOARD * 661-662-193-11 SW-F BOARD * 671-662-194-11 LED-F BOARD * 681-662-192-11 VOL BOARD 693-703-466-00 SPRING (6600) !S11-554-920-11 SWITCH, PUSH (AC POWER)(1 KEY)(POWER) 514-980-767-12 PANEL

19、, FRONT 524-965-651-01 EMBLEM (MOS) 534-979-587-01 EMBLEM (NO.5), SONY 54X-4946-920-1 KNOB (VOL) ASSY 554-980-771-01 KNOB (DIA. 47) 564-980-775-01 LENS, LED 574-980-774-11 KNOB (F11) 584-980-774-01 KNOB (F11) 59X-4946-944-1 PANEL ASSY, BASE 607-685-872-09 SCREW +BVTT 3X8 (S) The components identifie

20、d by mark ! or dotted line with mark ! are criti- cal for safety. Replace only with part number speci- fied. (2) FRONT PANEL SECTION 21 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark 1014-967-961-01 SCREW (3X8) 1024-967-960-01 SCREW (4X8) * 1031-665-580-11 SP-TM BOARD 1044-981-01

21、6-11 SCREW (H) 1053-905-609-11 SCREW (TRANSISTOR) * 106A-4398-160-A MAIN (B) BOARD, COMPLETE * 1073-703-244-00 BUSHING (2104), CORD !1081-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK) 1093-704-515-41 SCREW (BV/RING) 1101-506-113-00 SHORT PLUG 1114-947-010-01 SCREW, FEEDER FIXED * 1124-982-978-21 PANEL

22、, BACK (AEP) * 1124-982-978-31 PANEL, BACK (UK) * 1131-662-191-11 INPUT BOARD * 114A-4398-159-A MAIN (A) BOARD, COMPLETE !CNP801 1-777-185-11 CORD, POWER !T11-431-295-11 TRANSFORMER, POWER 103 104 101 105 104 101 106 101 101 107 108 101 110 111 101 112 101 114 101 101 113 102 102 101 not supplied no

23、t supplied not supplied not supplied not supplied not supplied not supplied T1 CNP801 UK 109 The components identified by mark ! or dotted line with mark ! are criti- cal for safety. Replace only with part number speci- fied. (3) CHASSIS SECTION 22 NOTE: Due to standardization, replacements in the p

24、arts list may be different from the parts speci- fied in the diagrams or the components used on the set. -XX and -X mean standardized parts, so they may have some difference from the original one. RESISTORS All resistors are in ohms. METAL: Metal-film resistor. METAL OXIDE: Metal oxide-film resistor

25、. F: nonflammable Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when order- ing these items. SEMICONDUCTORS In each case, u: , for example: uA. .: A. .uPA. . : PA. . uPB. .: PB. .uPC. . : PC. . uPD. .: PD. . CAPACITORS uF: F COI

26、LS uH: H The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark *1-662-197-11 HP BOARD * J7011-750-735-11 JACK (LARGE TYPE) (PHONES) * *1-662-191-11 INPUT BOAR

27、D * C1011-136-165-00 FILM0.1uF5%50V C1021-136-165-00 FILM0.1uF5%50V C1031-136-165-00 FILM0.1uF5%50V C1041-136-165-00 FILM0.1uF5%50V C1051-136-165-00 FILM0.1uF5%50V C1061-136-165-00 FILM0.1uF5%50V CN161-564-320-00 PIN, CONNECTOR (B2P-VH) 2P CN1031-691-766-11 PLUG (MICRO CONNECTOR) 4P * CN1041-564-527

28、-11 PLUG, CONNECTOR 12P D1018-719-987-63 DIODE 1N4148M D1028-719-987-63 DIODE 1N4148M D1038-719-987-63 DIODE 1N4148M D1048-719-987-63 DIODE 1N4148M D1058-719-987-63 DIODE 1N4148M D1068-719-987-63 DIODE 1N4148M D1078-719-987-63 DIODE 1N4148M D1088-719-987-63 DIODE 1N4148M J1011-568-978-51 JACK 6P (PH

29、ONO/TUNER/CD INPUT) J1021-568-978-11 JACK 6P (AUX INPUT, TAPE2/MD IN/RECOUT) * J1031-573-142-21 JACK, PIN 4P (TAPE1/DAT IN/RECOUT) Q1018-729-119-78 TRANSISTOR 2SC2785-HFE Q1028-729-119-78 TRANSISTOR 2SC2785-HFE Q1038-729-119-78 TRANSISTOR 2SC2785-HFE Q1048-729-119-78 TRANSISTOR 2SC2785-HFE Q1058-729

30、-119-78 TRANSISTOR 2SC2785-HFE Q1068-729-119-78 TRANSISTOR 2SC2785-HFE R1011-259-500-11 CARBON1M5%1/6W R1021-259-500-11 CARBON1M5%1/6W R1031-259-500-11 CARBON1M5%1/6W R1041-259-428-11 CARBON1K5%1/6W R1051-259-500-11 CARBON1M5%1/6W R1061-259-428-11 CARBON1K5%1/6W R1071-259-500-11 CARBON1M5%1/6W R1081

31、-249-210-11 CARBON1K5%1/3W R1091-259-444-11 CARBON4.7K5%1/6W R1101-259-444-11 CARBON4.7K5%1/6W R1111-259-444-11 CARBON4.7K5%1/6W R1121-259-444-11 CARBON4.7K5%1/6W R1131-259-444-11 CARBON4.7K5%1/6W R1141-259-444-11 CARBON4.7K5%1/6W R1511-259-500-11 CARBON1M5%1/6W R1521-259-500-11 CARBON1M5%1/6W R1531

32、-259-500-11 CARBON1M5%1/6W R1541-259-428-11 CARBON1K5%1/6W R1551-259-500-11 CARBON1M5%1/6W R1561-259-428-11 CARBON1K5%1/6W R1571-259-500-11 CARBON1M5%1/6W R1581-249-210-11 CARBON1K5%1/3W RY1011-515-614-11 RELAY RY1021-515-614-11 RELAY RY1031-515-614-11 RELAY RY1041-515-614-11 RELAY RY1051-515-614-11

33、 RELAY RY1061-515-614-11 RELAY RY1071-515-622-11 RELAY RY1081-515-622-11 RELAY * *1-662-194-11 LED-F BOARD * CNJ601 1-766-796-11 CONNECTOR, BOARD TO BOARD 12P When indicating parts by reference number, please include the board. HPINPUTLED-F SECTION 6 ELECTRICAL PARTS LIST 23 Ref. No.Part No.Descript

34、ionRemarkRef. No.Part No.DescriptionRemark D6018-719-313-50 LED SEL6810A-TH12 (PHONO) D6028-719-313-50 LED SEL6810A-TH12 (TUNER) D6038-719-313-50 LED SEL6810A-TH12 (CD) D6048-719-313-50 LED SEL6810A-TH12 (AUX) D6058-719-313-50 LED SEL6810A-TH12 (TAPE2/MD) D6068-719-313-50 LED SEL6810A-TH12 (TAPE1/DA

35、T) * *1-662-195-11 LED-P BOARD * D7028-719-313-48 LED SEL6210S-TH12 (PROTECTON) R7051-259-143-21 CARBON1005%1/4W * *A-4398-159-A MAIN (A) BOARD, COMPLETE * C3011-102-978-00 CERAMIC220PF5%50V C3021-126-059-11 ELECT10uF20%50V C3041-106-359-00 MYLAR4700PF5%200V C3051-130-341-00 FILM0.056uF3%100V C3061-

36、130-971-00 FILM0.016uF3%100V C3071-126-059-11 ELECT10uF20%50V C3081-126-022-11 ELECT47uF20%25V C3091-126-025-11 ELECT330uF20%25V C3101-126-023-11 ELECT100uF20%25V C3111-102-973-00 CERAMIC100PF5%50V C3121-124-721-11 ELECT10uF20%50V C3131-104-290-11 POLYSTYRENE330PF5%50V C3151-102-230-00 CERAMIC4PF0.2

37、5PF500V C3161-126-023-11 ELECT100uF20%16V C3171-126-023-11 ELECT100uF20%16V C3181-126-023-11 ELECT100uF20%16V C3191-126-023-11 ELECT100uF20%16V C3201-110-393-11 ELECT100uF20%63V C3211-113-496-11 POLYSTYRENE4PF10%50V C3221-109-871-11 ELECT2700uF20%50V C3511-102-978-00 CERAMIC220PF5%50V C3521-126-059-

38、11 ELECT10uF20%50V C3541-106-359-00 MYLAR4700PF5%200V C3551-130-341-00 FILM0.056uF3%100V C3561-130-971-00 FILM0.016uF3%100V C3571-126-059-11 ELECT10uF20%50V C3581-126-022-11 ELECT47uF20%25V C3591-126-025-11 ELECT330uF20%25V C3601-126-023-11 ELECT100uF20%25V C3611-102-973-00 CERAMIC100PF5%50V C3621-1

39、24-721-11 ELECT10uF20%50V C3631-104-290-11 POLYSTYRENE330PF5%50V C3651-102-230-00 CERAMIC4PF0.25PF500V C3661-126-023-11 ELECT100uF20%16V C3671-126-023-11 ELECT100uF20%16V C3681-126-023-11 ELECT100uF20%16V C3691-126-023-11 ELECT100uF20%16V C3701-110-393-11 ELECT100uF20%63V C3711-113-496-11 POLYSTYREN

40、E4PF10%50V C3721-109-871-11 ELECT2700uF20%50V CN3011-691-767-11 PLUG (MICRO CONNECTOR) 5P CN3021-691-765-11 PLUG (MICRO CONNECTOR) 3P D3018-719-310-61 LEDSEL1510C-D D3028-719-933-88 DIODE HZS16-2L D3038-719-933-41 DIODE HZS6C3L D3048-719-987-63 DIODE 1N4148M D3058-719-987-63 DIODE 1N4148M D3068-719-

41、310-61 LEDSEL1510C-D D3078-719-987-63 DIODE 1N4148M D3088-719-987-63 DIODE 1N4148M D3098-719-987-63 DIODE 1N4148M D3518-719-310-61 LEDSEL1510C-D D3528-719-933-88 DIODE HZS16-2L D3538-719-933-41 DIODE HZS6C3L D3548-719-987-63 DIODE 1N4148M D3558-719-987-63 DIODE 1N4148M D3568-719-310-61 LEDSEL1510C-D

42、 D3578-719-987-63 DIODE 1N4148M D3588-719-987-63 DIODE 1N4148M D3598-719-987-63 DIODE 1N4148M IC3018-759-701-25 IC NJM2068D-D L3011-428-203-11 COIL, AIR-CORE L3511-428-203-11 COIL, AIR-CORE Q3018-729-354-52 TRANSISTOR 2SC2545 Q3028-729-354-52 TRANSISTOR 2SC2545 Q3038-729-281-54 TRANSISTOR 2SC1815-BL

43、 Q3048-729-620-17 TRANSISTOR 2SC2259-FG Q3058-729-201-53 TRANSISTOR 2SA1015-GR Q3068-729-201-53 TRANSISTOR 2SA1015-GR Q3078-729-201-53 TRANSISTOR 2SA1015-GR Q3088-729-021-74 TRANSISTOR 2SA949-OY-TPE6 Q3098-729-202-67 FET2SK246-GR3 Q3108-729-021-73 TRANSISTOR 2SC2229-OY-TPE6 Q3118-729-281-54 TRANSIST

44、OR 2SC1815-BL Q3128-729-281-54 TRANSISTOR 2SC1815-BL Q3518-729-354-52 TRANSISTOR 2SC2545 Q3528-729-354-52 TRANSISTOR 2SC2545 Q3538-729-201-53 TRANSISTOR 2SA1015-GR Q3548-729-620-17 TRANSISTOR 2SC2259-FG Q3558-729-201-53 TRANSISTOR 2SA1015-GR Q3568-729-201-53 TRANSISTOR 2SA1015-GR Q3578-729-201-53 TR

45、ANSISTOR 2SA1015-GR Q3588-729-021-74 TRANSISTOR 2SA949-OY-TPE6 MAIN (A)LED-PLED-F 24 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark Q3598-729-202-67 FET2SK246-GR3 Q3608-729-021-73 TRANSISTOR 2SC2229-OY-TPE6 Q3618-729-281-54 TRANSISTOR 2SC1815-BL Q3628-729-281-54 TRANSISTOR 2SC181

46、5-BL R3011-259-215-21 CARBON100K5%1/4W R3021-249-911-11 CARBON3305%1/4W R3031-259-215-21 CARBON100K5%1/4W R3041-249-900-11 CARBON1101%1/4W R3051-259-161-21 CARBON5605%1/4W R3061-259-161-21 CARBON5605%1/4W R3071-259-143-21 CARBON1005%1/4W R3081-259-191-21 CARBON10K5%1/4W R3091-249-844-11 CARBON56K1%1

47、/2W R3101-259-320-11 CARBON4.7K1%1/2W R3111-259-167-21 CARBON1K5%1/4W R3131-249-943-11 CARBON6.8K5%1/4W R3141-249-198-11 CARBON3305%1/3W R3151-249-198-11 CARBON3305%1/3W R3161-249-198-11 CARBON3305%1/3W R3171-249-198-11 CARBON3305%1/3W R3181-259-167-21 CARBON1K5%1/4W R3191-259-151-21 CARBON2205%1/4W R3201-259-151-21 CARBON2205%1/4W R3211-259-151-21 CA