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SERVICE MANUAL

AMPLIFIER

E Model

SPECIFICATIONS

TA-SV7AV

Ver 1.0  2001.06

9-873-154-01

Sony Corporation

2001F0500-1

Home Audio Company

C

 2001.6

Shinagawa Tec Service Manual Production Group

TA-SV7AV is the Amplifier section
in MHC-SV7AV.

Amplifier section

The following measured at AC 120, 220, 230 – 240 V,
50/60 Hz

Front Speaker:

DIN power output (rated) 95 + 95 watts

(6 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

120 + 120 watts
(6 ohms at 1 kHz, 10%
THD)

Center Speaker:

DIN power output (rated) 30 watts

(8 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

40 watts
(8 ohms at 1 kHz, 10%
THD)

Rear Speaker:

DIN power output (rated) 30 + 30 watts

(8 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

40 + 40 watts
(8 ohms at 1 kHz, 10%
THD)

Inputs
VIDEO (AUDIO) IN:

voltage 250 mV,

(phono jacks)

impedance 47 kilohms

MD IN:

voltage 450 mV,

(phono jacks)

impedance 47 kilohms

OPTICAL IN:
(Square optical connector jacks, rear panel)
wavelength

700 nm

MIC 1/2:

sensitivity 1 mV,

(phone jack)

impedance 10 kilohms

Outputs
MD OUT:

voltage 250 mV

(phono jacks)

impedance 1 kilohms

VIDEO OUT:

max. output level

(phono jack)

1 Vp-p, unbalanced, Sync
negative, load impedance
75 ohms

S-VIDEO  OUT:

Y: 1 Vp-p, unbalanced,

(4-pin/mini-DIN jack)

Sync negative,
C: 0.286Vp-p,
load impedance 75 ohms

PHONES:

accepts headphones of

(stereo mini jack)

8 ohms or more

FRONT SPEAKER:

accepts impedance of 6 to
16 ohms

REAR SPEAKER:

accepts impedance of 8 to
16 ohms

CENTER SPEAKER:

accepts impedance of 8 to
16 ohms

SUB WOOFER OUT:

Voltage 1 V,
impedance 1 kilohms

General

Power requirements
Thailand model:

220 V AC, 50/60 Hz

Other models:

120 V, 220 V or
230 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector

Power consumption

300 watts

Dimensions (w/h/d)

Approx. 280 x 128 x 350 mm

Mass

Approx. 7.7 kg

Design and specifications are subject to change
without notice.

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Summary of Contents for TA-SV7AV

Page 1: ...l wavelength 700 nm MIC 1 2 sensitivity 1 mV phone jack impedance 10 kilohms Outputs MD OUT voltage 250 mV phono jacks impedance 1 kilohms VIDEO OUT max output level phono jack 1 Vp p unbalanced Sync negative load impedance 75 ohms S VIDEO OUT Y 1 Vp p unbalanced 4 pin mini DIN jack Sync negative C 0 286Vp p load impedance 75 ohms PHONES accepts headphones of stereo mini jack 8 ohms or more FRONT ...

Page 2: ...OL Section 16 5 9 Schematic Diagram CONTROL Section 17 5 10 Printed Wiring Boards POWER Section 18 5 11 Schematic Diagram POWER Section 19 6 EXPLODED VIEWS 6 1 Cover Section 20 6 2 Front Panel Section 20 6 3 Chassis Section 21 7 ELECTRICAL PARTS LIST 22 SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CR...

Page 3: ...No Model PART No Singapore model 4 233 558 2 Saudi Arabia model 4 233 558 3 Thailand model 4 233 558 4 FRONT AMP BOARD SERVICE POSITION In checking the FRONT AMP board prepare jig extension cable J 2501 019 A 1 25 mm Pitch 25 core Length 300 mm Fig A Turn over the FRONT AMP board with Heat Sink SURROUND AMP board and RELAY board connected Remove the back panel 2CH VCD section Remove the fan motor ...

Page 4: ...CT 3 26 35 CLOCK TIMER SET 2 13 25 34 DBFB ej 27 DIGITAL r 36 40 DISPLAY rd 13 18 33 40 D SKIP 9 14 16 20 21 ENTER wf 11 13 15 17 21 22 25 26 30 33 35 EQ wh 31 EQ ON OFF wa 32 FILE SELECT wd 27 28 32 FUNCTION el 10 14 17 24 25 34 36 GROOVE ek 27 KARAOKE PON qk 33 KEY CONTROL ql 33 MD rs 36 Numeric buttons 8 15 16 19 20 21 ON SCREEN wk 18 PICTURE EFFECT wl 21 PRESET PREV NEXT ea 14 15 20 22 REPEAT ...

Page 5: ...NT AMP BOARD Page 7 SET Note 1 The process described in can be performed in any order Note 2 Without completing the process described in the next process can not be performed www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 c...

Page 6: ...n of arrow A A 3 3 4 three screws BVTP3 8 2 screw BVTP3 8 6 front panel section 5 two claws 5 two claws 5 claw 3 lug 1 wire flat type 25 core CN104 3 lug 3 lug 2 screw BVTP3 8 2 screw BVTP3 8 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com htt...

Page 7: ...section 6 1 screw BVTP3 8 2 lug 2 screw BVTP3 8 5 screw BVTP3 8 4 two screws BVTT3 8 3 bracket PWB 6 lug 8 Remove the FRONT AMP board in the direction of the arrow 7 PC board holder 1 three connector CN913 914 915 7 PC board holder www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315...

Page 8: ... ST SV7 2 Button of CD unit MCE SV7 MC Test Mode Enter the MC Test Mode 1 Press the I 1 button to turn the power on 2 While pressing the both STEREO MONO 1 and CINEMA STUDIO C buttons press the CINEMA STUDIO A button 3 GROOVE indication blinks on the fluorescent indicator tube in the midst of MC test mode 4 This mode has two modes mode 1 mode 2 5 To change the modes press three buttons in the same...

Page 9: ...iaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 10: ...nation A B Line B B Line Voltages are dc with respect to ground under no signal conditions no mark Power on Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path F AUDIO N MIC Abbreviation EA Saudi Arabia model SP Singapore model TH Thailand model Note The components identified by mark 0 or dotted line with mark 0 are c...

Page 11: ...29 JW69 JW152 JW80 JW58 JW19 JW181 JW31 C914 C926 R858 JW8 JW53 JW193 JW67 JW111 R891 JW88 JW146 JW881 JW62 JW149 JW122 JW35 R915 R912 JW170 JW97 JW64 D981 C915 JW151 JW36 JW1 JW54 C864 JW75 C1037 JW83 JW119 JW145 JW132 C924 JW79 D925 JW194 JW21 JW76 JW32 JW70 C1102 JW22 JW178 JW166 JW43 C954 JW45 JW37 R991 JW47 JW46 JW189 D926 R992 JW34 JW167 C990 JW188 JW98 Q904 JW125 C961 JW168 NO102 JW199 IC31...

Page 12: ...P 19P PT8300 S 2SB1116 2SC2785 25P 680 2W 680 2W FAN 1 2 3 4 6 7 8 9 10 11 VOL A VOL A VOL B KEY0 KEY0 PWR KEY PWR KEY CLK LAT VOL B LAT CLK JOG1 B JOG1 A JOG2 B JOG2 A JOG2 B JOG2 A JOG1 B JOG1 A MIC SIG MIC SIG AC1 AC2 RE RE AC1 AC2 Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z2 Z3 Z10 Z10 Y6 Y7 Y8 X1 X2 X3 X4 X5 X6 X7 X1 X2 X3 X4 X5 X6 X7 X8 X8 X9 X10 X10 X11 X12 X13 D I D I D O D O T1 T2 T3 T4 Z3 Z2 KEY0 TA POWER KE...

Page 13: ...k 10k 100k 100k 100k 100k 3300 63V 3300 50V 3300 50V 3300 63V D5SBA20 D5SBA20 0 1 100V 0 1 100V 0 1 0 1 4P 1SS133T 72 0 01 0 01 100k 47k 10k 2SA1175 47k 47k 47k 0 01 0 01 0 01 6P 13P 4P STK402 120S 220 2W 0 22 0 22 5W 0 22 0 22 5W 2SA988 2SC2785 2SC2785 2SC2785 2SA1175 2SC2785 2SC2785 1 2 3 4 6 7 8 9 10 11 Z1 Z2 Z3 Z4 Z5 Z6 Z7 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y1 Y2 Y3 Y4 Y5 Y8 Y9 Y10 Y11 Y9 Y10 Y11 X9 X12 T1 ...

Page 14: ... L LED on 6 LED B O LED drive signal output of the CINEMA STUDIO B indicator D705 L LED on 7 LED A O LED drive signal output of the CINEMA STUDIO A indicator D704 L LED on 8 LED EQ O LED drive signal output of the EQ indicator D703 L LED on 9 LED SUR O LED drive signal output of the SUR indicator D702 L LED on 10 LED BLU O LED drive signal output of the MULTI CHANNEL DECODING indicator D781 L LED ...

Page 15: ...k 100 100 56k 56k 56k 100p 56k 220p 56k 220p 100p 56k 220p 1k 1k 1k 4P 1k 15k 1SS133T 1SS133T 100k 15k 1k 1k 15k 1SS133T 100k 0 068 0 068 10 1 2W 1SS133T BA1F4M 10k 2SA1175 HFE 47k 56k 68k 1SS133T 13P 100k 22k 2SC2785 100k 68k 0 22 2W 0 22 2W 0 22 2W 100k 22k 220 2W 220 2W 10 50V 47 10V 47 10V 10 50V 10 50V 47 10V 100p 1 3k STK443 050 2SC2785 2SC2785 2SC2785 2SC2785 0 01 0 01 0 068 0 068 1 A1 A2 A...

Page 16: ...749 R749 C742 1 7 8 14 R748 2 4 5 3 1 6 7 2 4 5 3 1 6 7 R727 C722 R726 C721 C736 FB701 R741 R722 S717 7 J701 703 6 3 2 4 5 1 PANEL BOARD E 2 1 E FUNCTION DIGITAL MIC 2 J702 MIC 1 J701 CHASSIS S703 ROTARY ENCODER 1 3 VOLUME S702 ROTARY ENCODER 1 3 FILE SELECT EQ ENTER SUR v V b B EQ ON OFF SET UP PHONES S701 ROTARY ENCODER 1 3 D FRONT AMP BOARD CN104 CHASSIS CINEMA STUDIO B D705 S713 CINEMA STUDIO ...

Page 17: ...15k 2 2 50V 120k 1 50V 22k 0 0068 0 15 47k 0 022 0 0068 MTZJ T 72 5 1B 47 10V 47 10V 0 068 22k 22k 22k 0 001 270 22k 22k 0 47 50V 0 068 0 001 47 50V 10 16V 15k 1 50V 270p 470p M65850P LED POWER LED SUR LED EQ LED DCS_A LED DCS_B LED DCS_C LED BLUE LED POWER LED SUR LED EQ LED DCS_A LED DCS_B LED DCS_C LED BLUE A1 A2 A3 A4 A5 A6 A8 A9 A5 A4 A3 A2 A1 A6 A8 A9 LED BLUE VOL3 A VOL3 B HP SW HP L HP R D...

Page 18: ... 240V T 220V T 120V AC OUTPUT BOARD AC INPUT BOARD 3 1 1 6 4 1 F FRONT AMP BOARD NO101 G FRONT AMP BOARD NO102 E FRONT AMP BOARD NO101 1 680 754 1 2 3 4 TH 1 680 752 T911 POWER TRANSFORMER MAIN 2 2 3 4 1 1 AC IN TH SUB TRANS BOARD 1 E 5 A FRONT AMP BOARD NO109 1 680 751 11 21 11 21 11 21 EA SP EA SP EA SP EA SP TH TH TH TH Page 11 Page 11 Page 11 Page 11 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1...

Page 19: ...GND VP AC3 LOW AC3 LOW AC4 HIGH AC4 HIGH AC IN RELAY DRIVE POWER TRANSFORMER MAIN TH TH EA SP EA SP TH TH 4P 2P TH EA SP 230 240 220 EA SP TH 4P 2P TH EA SP 220 230 240 VOLTAGE SELECTOR 230 240V 120V 220V EA SP 5 11 SCHEMATIC DIAGRAM POWER Section The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified Page 13 Page 13 Page 13 P...

Page 20: ...4 3 not supplied not supplied not supplied 51 51 53 52 54 59 56 supplied with S702 supplied with S703 supplied with S701 zC zA zB 55 56 57 56 56 58 including zA zB zC 1 1 773 210 11 WIRE FLAT TYPE 25 CORE 2 3 363 099 21 SCREW CASE 3 TP2 3 4 232 336 11 COVER 4 4 233 558 21 PANEL 2CH VCD BACK SP 4 4 233 558 31 PANEL 2CH VCD BACK EA 4 4 233 558 41 PANEL 2CH VCD BACK TH 5 1 680 751 11 SUB TRANS BOARD ...

Page 21: ...26 276 A SURROUND AMP BOARD COMPLETE TH 106 3 970 608 01 SUMITITE B3 BV 107 4 965 822 01 FOOT 108 3 703 244 00 BUSHING 2104 CORD EA SP 108 3 703 571 11 BUSHING S 4516 CORD TH 0109 1 777 071 81 CORD POWER EA SP 0109 1 791 901 11 CORD POWER TH 0T911 1 435 935 11 TRANSFORMER POWER not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied 2 1 1 2 3 T911 10...

Page 22: ... µPB uPC µPC uPD µPD CAPACITORS uF µF COILS uH µH The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified When indicating parts by reference number please include the board C834 1 136 165 00 FILM 0 1uF 5 50V C835 1 136 165 00 FILM 0 1uF 5 50V C836 1 136 165 00 FILM 0 1uF 5 50V C837 1 126 963 11 ELECT 4 7uF 20 50V C851 1 126 963...

Page 23: ...537 770 21 TERMINAL BOARD GROUND IC IC310 6 800 467 01 IC PT8300 S IC801 8 749 016 96 IC STK402 120S IC923 8 759 595 88 IC NJM78L12A T3 IC924 8 759 708 05 IC NJM78L05A T3 COIL L811 1 420 872 00 COIL AIR CORE L831 1 420 872 00 COIL AIR CORE L832 1 420 872 00 COIL AIR CORE L833 1 420 872 00 COIL AIR CORE L861 1 420 872 00 COIL AIR CORE TRANSISTOR Q801 8 729 119 78 TRANSISTOR 2SC2785TP HFE Q821 8 729...

Page 24: ...1 11 CARBON 330 5 1 4W R923 1 249 417 11 CARBON 1K 5 1 4W R924 1 249 437 11 CARBON 47K 5 1 4W R925 1 249 437 11 CARBON 47K 5 1 4W R926 1 249 429 11 CARBON 10K 5 1 4W R927 1 249 437 11 CARBON 47K 5 1 4W R951 1 249 441 11 CARBON 100K 5 1 4W R952 1 249 441 11 CARBON 100K 5 1 4W R953 1 249 441 11 CARBON 100K 5 1 4W R954 1 249 441 11 CARBON 100K 5 1 4W 0R963 1 212 881 11 FUSIBLE 100 5 1 4W F 0R964 1 21...

Page 25: ...416 11 CARBON 820 5 1 4W R713 1 249 417 11 CARBON 1K 5 1 4W R714 1 249 418 11 CARBON 1 2K 5 1 4W R715 1 249 419 11 CARBON 1 5K 5 1 4W R716 1 249 421 11 CARBON 2 2K 5 1 4W R717 1 249 422 11 CARBON 2 7K 5 1 4W R718 1 249 424 11 CARBON 3 9K 5 1 4W R719 1 249 426 11 CARBON 5 6K 5 1 4W R720 1 249 428 11 CARBON 8 2K 5 1 4W R721 1 249 431 11 CARBON 15K 5 1 4W R722 1 249 434 11 CARBON 27K 5 1 4W R726 1 24...

Page 26: ...PF 10 50V C1053 1 162 282 31 CERAMIC 100PF 10 50V C1054 1 126 947 11 ELECT 47uF 20 10V C1056 1 136 495 11 FILM 0 068uF 5 50V C1057 1 136 495 11 FILM 0 068uF 5 50V C1081 1 126 964 11 ELECT 10uF 20 50V C1082 1 162 286 31 CERAMIC 220PF 10 50V C1083 1 162 282 31 CERAMIC 100PF 10 50V C1084 1 126 947 11 ELECT 47uF 20 10V C1086 1 136 495 11 FILM 0 068uF 5 50V C1087 1 136 495 11 FILM 0 068uF 5 50V CONNECT...

Page 27: ... 41 ENCAPSULATED COMPONENT 0 22 2W R1086 1 249 417 11 CARBON 1K 5 1 4W R1087 1 249 431 11 CARBON 15K 5 1 4W R1088 1 249 441 11 CARBON 100K 5 1 4W R1089 1 260 076 11 CARBON 10 5 1 2W R1090 1 249 439 11 CARBON 68K 5 1 4W R1092 1 249 441 11 CARBON 100K 5 1 4W R1093 1 249 441 11 CARBON 100K 5 1 4W R1094 1 249 439 11 CARBON 68K 5 1 4W R1095 1 249 433 11 CARBON 22K 5 1 4W RELAY RY1061 1 515 920 11 RELAY...

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