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STR-W550

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Tourist Model

SERVICE MANUAL

FM STEREO/FM-AM RECEIVER

MICROFILM

STR-W550 is RECEIVER section in
MHC-W550

SPECIFICATIONS

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range

87.5-108.0MHz (EXCEPT JE)
76.0-108.0MHz (JE)

Aerial

FM lead aerial

Aerial terminals

75 ohm unbalanced

Intermediate frequency 10.7MHz

AM tuner section

Tuning range

(Canadian,Thai,Argentine,Australian,E2)
AM: 530-1,710kHz

(with interval set at 10kHz)
531-1,710kHz
(with interval set at 9kHz)

(EXCEPT Canadian,Thai,Argentine,
Australian,E2)
MW: 531-1,602kHz

(with interval set at 9kHz)

(AEP,UK)
LW: 153-279kHz

(with interval set at 3kHz)

(EXCEPT AEP,UK,Canadian,Thai,
Argentine,Australian,E2)
SW: 5.95-17.90MHz

(with interval set at 9kHz)

Intermediate frequency 450kHz
Aerial

AM loop aerial,
External aerial terminal

Video  section

Inputs

AV INPUT VIDEO
(phone jack) :
1 Vp-p, 75 ohms
MONITOR OUT
(phone jack) :
1 Vp-p, 75 ohms

Amplifier section

DIN power output

80W +80W
(6 ohms at 1kHz, DIN)

Music power output

190W + 190W
(6 ohms at 1kHz, 10%, THD)

Inputs

MD/VIDEO 1 IN (phono jacks) : voltage 250 mV,
impedance 47 kilo ohms AV INPUT AUDIO
(phone jacks) : voltage 250 mV, impedance 47
kilo ohms
MIX/MIC (phone jack) :sensitivity 1mV,
impedance 10 kilo ohms

Outputs

MD/VIDEO 1 OUT
(phone jacks) : voltage 250
mV, impedance 1 kilo ohm
PHONES (stereo phone
 jack) : accepts headphone
of 8 ohms or more.
SPEAKER : accepts
impedance of 6 to 16
ohms
SUPER WOOFER :
Voltage 1 V, impedance 1
kilo ohms

— Continued on next page —

E2

: Tuner sections SW band do not exist.

Summary of Contents for STR-W550

Page 1: ...set at 3kHz EXCEPT AEP UK Canadian Thai Argentine Australian E2 SW 5 95 17 90MHz with interval set at 9kHz Intermediate frequency 450kHz Aerial AM loop aerial External aerial terminal Video section Inputs AV INPUT VIDEO phone jack 1 Vp p 75 ohms MONITOR OUT phone jack 1 Vp p 75 ohms Amplifier section DIN power output 80W 80W 6 ohms at 1kHz DIN Music power output 190W 190W 6 ohms at 1kHz 10 THD Inp...

Page 2: ... IDENTIFICATION MODEL NO STR W550 FM STEREO FM AM RECEIVER Abbreviations TH Thai SP Singapore AR Argentine HK HongKong EA3 Saudi Arabia AUS Australian TW Taiwan EA4 Israel MY Malaysia IA Indonesian JE Tourist CND Canadian EE East European E2 Tuner sections SW band do not exist E3 Tuner sections SW band exist TABLE OF CONTENTS 1 GENERAL 3 2 TEST MODE 5 3 ELECTRICAL ADJUSTMENTS 6 4 DIAGRAMS 4 1 Circ...

Page 3: ...on TUNER BAND button MONO ST button FUNCTION button MIC LEVEL MIX MIC jack PHONES jack EDIT button ª PLAY MODE button º 1 ALL DISCS button REPEAT button HIGH FREQ button ENTER NEXT button MULTI JOG STATION dial LOW FREQ button MEMORY button TUNING MODE button FLASH button ª LOOP button º WAVE button AV INPUT jack CLOCK TIMER SET button TIMER SELECT button RDS button AEP UK MODEL DISPLAY button POW...

Page 4: ...terminal SYSTEM CONTROL ª MD VIDEO jack º FRONT SPEAKER terminal SUPER WOOFER jack MONITOR OUT jack VOLTAGE SELECTOR switch E Saudi Arabia Singapore Malaysia Hong Kong Taiwan Indonesian Argentine Tourist MODEL Photo E MODEL ...

Page 5: ... MD appears on the display When the function is set to MD the function is changed to VIDEO 1 and VIDEO 1 appears on the display COLD RESET Reset which clears memory Press the REPEAT ENTER NEXT and DISPLAY buttons simultaneously at any time The system is reset while clearing memory HOT RESET Reset which does not clear memory Press the REPEAT ENTER NEXT and TIMER SELECT buttons simultaneously at any...

Page 6: ...ponent side parts on the side which is seen Ref No Location D21 G 2 D41 G 3 D42 H 5 D1751 I 4 IC21 G 2 IC41 E 4 IC1751 I 2 IC1752 I 4 Q1 F 2 Q2 F 2 Q3 E 3 Q4 E 2 Q5 E 3 Q9 D 2 Q11 C 4 Q12 B 4 Q13 B 3 Q14 B 3 Semiconductor Location Note parts extracted from the component side parts on the side which is seen Ref No Location D21 G 2 D41 G 4 D42 H 5 D43 H 5 D1701 J 4 D1702 J 4 D1703 H 4 D1704 J 4 IC21...

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Page 16: ... dial encoder input Volum encoder input Volum encoder input JOG dial encoder input Not used 12C clock I O 12C data I O Not used Power supply 5V Power supply Ground Latch output to IC105 Latch output to IC2002 Mute output to transistor L Mute ON DBFB level control output L DBFB HIGH Latch output to IC6003 H Key con ON L SP relay ON Not used Key data input A D converter Key data input A D converter ...

Page 17: ...O O O O O O O O O Description H MUTE L Signal Receiving Not used Pin Name FL 1G FL 2G FL 3G FL 4G FL 5G FL 6G FL 7G FL 8G FL 9G FL 10G FL 11G FL 12G FL 13G FL 14G FL P1 FL P2 FL P3 FL P4 FL P5 FL P6 FL P7 FL P8 FL P9 FL P10 FL P11 FL P12 FL P13 FL P14 FL P15 FL P16 FL P17 FL P18 FL P19 FL P20 FL P21 FL P22 FL P23 FL P24 FL P25 FL P26 FL P27 FL P28 FL P29 FL P30 FL P31 FL P32 FL P33 FL P34 ST MUTE ...

Page 18: ...G DRIVE COMP GND AM FM SW VCC PHASE DET PILOT DET VCO FF STEREO DRIVE TRIG STEREO SW MUTE FF FF FM IF FM DET DECODER ANTI BIRDIE 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 21 22 23 24 25 26 27 28 29 30 FM SD AM OSC FM AFC AM RF IN AGC AM CUT AM FM VCO MPX IN OUT R OUT L AMP IN R AMP IN L R L VCO STOP ST LED AM FM AM SD AM SD IF BUFF VCC DET FM IN AM MIX IF REG AM IF GND TU LED FM AM IC41 L...

Page 19: ... 70 KEY OUT1 NC3 REC 1A REC 1B REC 1C NC4 F1 F1 F1 O1 F1 IN1 F2 F1 F2 O1 F2 IN1 F3 F1 F3 O1 F3 IN1 F4 F1 F4 O1 F4 IN1 F5 F1 F OUT1 VOL OUT1 VOL IN1 BBIN1 BB11 BB12 BBIN2 VOL OUT2 VOL IN2 F OUT2 F5 F2 F4 IN2 F4 O2 F4 F2 F3 IN2 F3 O2 F3 F2 F2 IN2 F2 O2 F2 F2 F1 IN2 F1 O2 F1 F2 NC6 REC 2C REC 2B REC 2A NC7 KEY OUT2 BB22 BUF IN1 BUF OUT1 NC5 AVDD DGND LATCH DATA CLOCK DVDD PORT C PORT B PORT A BUFOUT1...

Page 20: ...233 546 21 ENCAPSULATED COMPONENT E3 EA3 MY SP HK TW IA 6 1 693 385 21 TUNER JE 7 1 666 067 11 DUMMY BOARD 8 4 991 360 01 PANEL WH1 BACK E AR 8 4 991 360 11 PANEL WH1 BACK MY SP 8 4 991 360 21 PANEL WH1 BACK HK 8 4 991 360 31 PANEL WH1 BACK AUS 8 4 991 360 41 PANEL WH1 BACK AEP UK 8 4 991 360 51 PANEL WH1 BACK CND 8 4 991 360 61 PANEL WH1 BACK EA3 TW JE 8 4 991 360 71 PANEL WH1 BACK EE CIS 8 4 991...

Page 21: ...OARD 61 1 666 062 11 JOG BOARD 62 X 4948 611 1 BUTTON E N ASSY 63 4 984 085 01 SPRING ENTER COMPRESSION 64 A 4398 478 A PANEL BOARD COMPLETE E3 EA3 MY SP HK TW 64 A 4398 479 A PANEL BOARD COMPLETE E2 AR AUS 64 A 4398 480 A PANEL BOARD COMPLETE AEP UK 64 A 4398 481 A PANEL BOARD COMPLETE EE CIS 64 A 4398 482 A PANEL BOARD COMPLETE CND 64 A 4403 302 A PANEL BOARD COMPLETE JE 64 A 4403 310 A PANEL BO...

Page 22: ...20 16V C940 1 128 581 11 ELECT 4 7uF 20 63V C950 1 162 306 11 CERAMIC 0 01uF 20 16V C951 1 126 963 11 ELECT 4 7uF 20 50V C952 1 162 294 31 CERAMIC 0 001uF 10 50V C953 1 162 282 31 CERAMIC 100PF 10 50V C954 1 126 967 11 ELECT 47uF 20 50V C955 1 126 967 11 ELECT 47uF 20 50V C956 1 136 495 11 FILM 0 068uF 5 50V C957 1 136 495 11 FILM 0 068uF 5 50V DIODE D805 8 719 933 50 DIODE HZS7C2L D806 8 719 001 ...

Page 23: ... 00 FILM 0 12uF 5 50V C116 1 126 961 11 ELECT 2 2uF 20 50V C117 1 162 306 11 CERAMIC 0 01uF 20 16V C118 1 126 964 11 ELECT 10uF 20 50V C120 1 126 959 11 ELECT 0 47uF 20 50V C123 1 126 963 11 ELECT 4 7uF 20 50V C129 1 162 294 31 CERAMIC 0 001uF 10 50V C130 1 164 159 11 CERAMIC 0 1uF 50V C140 1 162 306 11 CERAMIC 0 01uF 20 16V C153 1 136 169 00 FILM 0 22uF 5 50V C154 1 136 169 00 FILM 0 22uF 5 50V C...

Page 24: ... Q112 8 729 119 78 TRANSISTOR 2SC403SP 51 Q161 8 729 119 78 TRANSISTOR 2SC403SP 51 Q162 8 729 119 78 TRANSISTOR 2SC403SP 51 Q190 8 729 900 63 TRANSISTOR DTA124ES Q191 8 729 141 26 TRANSISTOR 2SC3622A LK Q192 8 729 141 26 TRANSISTOR 2SC3622A LK Q801 8 729 141 83 TRANSISTOR 2SB1094 LK Q810 8 729 900 36 TRANSISTOR DTC124ES Q856 8 729 900 36 TRANSISTOR DTC124ES Q857 8 729 900 63 TRANSISTOR DTA124ES Q2...

Page 25: ...5 1 2W F R804 1 249 429 11 CARBON 10K 5 1 4W R818 1 249 427 11 CARBON 6 8K 5 1 4W F R819 1 249 427 11 CARBON 6 8K 5 1 4W F R840 1 249 429 11 CARBON 10K 5 1 4W R851 1 249 431 11 CARBON 15K 5 1 4W R853 1 249 397 11 CARBON 22 5 1 4W F R854 1 249 441 11 CARBON 100K 5 1 4W R856 1 249 429 11 CARBON 10K 5 1 4W R857 1 249 435 11 CARBON 33K 5 1 4W R858 1 249 437 11 CARBON 47K 5 1 4W R859 1 249 439 11 CARBO...

Page 26: ...5 50V EXCEPT IA C504 1 162 205 31 CERAMIC 18PF 5 50V C505 1 124 261 00 ELECT 10uF 20 50V C506 1 137 399 11 FILM 0 1uF 5 50V C507 1 124 248 00 ELECT 22uF 20 35V C508 1 162 306 11 CERAMIC 0 01uF 20 16V C509 1 124 261 00 ELECT 10uF 20 50V C510 1 162 306 11 CERAMIC 0 01uF 20 16V C511 1 124 584 00 ELECT 100uF 20 10V C512 1 124 261 00 ELECT 10uF 20 50V C514 1 124 261 00 ELECT 10uF 20 50V C515 1 162 306 ...

Page 27: ...3K 5 1 4W R520 1 249 427 11 CARBON 6 8K 5 1 4W F R521 1 249 431 11 CARBON 15K 5 1 4W R522 1 249 437 11 CARBON 47K 5 1 4W R523 1 249 413 11 CARBON 470 5 1 4W F R524 1 249 415 11 CARBON 680 5 1 4W F R525 1 249 417 11 CARBON 1K 5 1 4W F R526 1 249 419 11 CARBON 1 5K 5 1 4W F R527 1 249 421 11 CARBON 2 2K 5 1 4W F R528 1 247 843 11 CARBON 3 3K 5 1 4W R529 1 249 427 11 CARBON 6 8K 5 1 4W F R530 1 249 4...

Page 28: ...TCH TACTILE GAME S513 1 762 751 11 SWITCH TACTILE P FILE S514 1 762 751 11 SWITCH TACTILE MEMO S515 1 762 751 11 SWITCH TACTILE HIGH FREQ S516 1 762 751 11 SWITCH TACTILE REPEAT S517 1 762 751 11 SWITCH TACTILE 1 ALL DISCS S518 1 762 751 11 SWITCH TACTILE PLAY MODE S519 1 762 751 11 SWITCH TACTILE EDIT S520 1 762 751 11 SWITCH TACTILE DBFB S521 1 762 751 11 SWITCH TACTILE GROOVE S522 1 762 751 11 ...

Page 29: ...11 ELECT 10uF 20 50V C53 1 126 964 11 ELECT 10uF 20 50V C54 1 104 396 11 ELECT 10uF 20 16V C55 1 104 396 11 ELECT 10uF 20 16V C56 1 104 396 11 ELECT 10uF 20 16V C57 1 163 017 00 CERAMIC CHIP 0 0047uF 5 50V C58 1 163 017 00 CERAMIC CHIP 0 0047uF 5 50V C59 1 163 909 11 CERAMIC CHIP 0 047uF 10 25V AEP UK C59 1 163 989 11 CERAMIC CHIP 0 033uF 10 25V EE CIS C60 1 163 909 11 CERAMIC CHIP 0 047uF 10 25V ...

Page 30: ...9 288 54 IC LC72130 IC41 8 759 176 03 IC LA1835 IC1701 8 759 063 04 IC IR3R42 EE CIS IC1702 8 759 140 53 IC MC14053BCP EE CIS IC1751 8 759 963 51 IC NJM4558D AEP UK IC1752 8 759 450 86 IC BU1922 AEP UK IFT IFT41 1 409 636 11 TRANSFORMER IF CERAMIC FILTER CHIP CONDUCTOR JR2 1 216 295 91 CONDUCTOR CHIP 2012 JR6 1 216 295 91 CONDUCTOR CHIP 2012 JR8 1 216 295 91 CONDUCTOR CHIP 2012 JR9 1 216 295 91 CO...

Page 31: ... 5 1 4W R42 1 216 073 00 METAL CHIP 10K 5 1 10W R43 1 216 042 00 METAL CHIP 510 5 1 10W R44 1 216 013 00 METAL CHIP 33 5 1 10W R45 1 247 843 11 CARBON SMALL 3 3K 5 1 4W R46 1 216 073 00 METAL CHIP 10K 5 1 10W R47 1 216 097 91 CHIP 2012 100K 5 1 10W R48 1 249 417 11 CARBON 1K 5 1 4W R49 1 216 049 91 CHIP 2012 1 0K 5 1 10W R50 1 216 065 00 METAL CHIP 4 7K 5 1 10W R51 1 216 065 00 METAL CHIP 4 7K 5 1...

Page 32: ... JE 13 1 569 007 11 ADAPTOR CONVERSION 2P E EA4 IA JE 13 1 569 008 21 ADAPTOR CONVERSION 2P EA3 MY SP TW AR 13 1 770 019 11 ADAPTOR CONVERSION PLUG 3P HK F851 1 532 465 51 FUSE TIME LAG 3 15A 250V EXCEPT CND F852 1 576 193 21 FUSE TIME LAG 6 3A 125V CND F852 1 532 506 51 FUSE TIME LAG 6 3A 250V EA3 SP MY HK TW IA AR JE F857 1 532 749 11 FUSE GLASS TUBE 8A 125V CND F857 1 532 506 51 FUSE TIME LAG 6...

Page 33: ...STR W550 48 Sony Corporation Home A V Products Company 9 920 914 11 97F1681 1 Printed in Japan 1997 6 Published by General Engineering Dept Shibaura ...

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