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STR-WX5

E Model

Australian Model

Tourist Model

SERVICE MANUAL

FM STEREO/FM-AM RECEIVER

MICROFILM

SPECIFICATIONS

STR-WX5 is the tuner and amplifier
section in MHC-WX5.

Amplifier section

The following measured at AC 120, 220, 240V 50/60Hz
DIN power output (Rated) (FRONT)

120 + 120W (6 

 at 1kHz DIN)

Continuous RMS power output (Reference)

150 + 150 W
(6 

 at 1kHz, 10% THD)

Inputs

MD/VIDEO 1 IN (phono jacks): voltage
450/250mV, impedance 47k

AV INPUT AUDIO (phono jacks):
voltage 250mV, impedance 47k

MIX MIC (phone jack): sensitivity 1mV,
impedance 10k

Output

MD/VIDEO 1 OUT (phono jacks):
voltage 450/250mV, impedance 1k

PHONES (stereo phone jack): accepts
headphones of 8

 or more.

FRONT SPEAKER:
accepts impedance of 6 to 16

REAR SPEAKER:
accepts impedance of 16

SUPER WOOFER:
Voltage 1V, impedance 1k

Video section

Inputs

AV INPUT VIDEO (phono jack): 1Vp-p,
75

Outputs

MONITOR OUT (phono jack): 1Vp-p,
75

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range

87.5 – 108.0MHz

Antenna terminals

75

 unbalanced

Intermediate frequency

10.7MHz

AM tuner section

Tuning range
Latin America  models:

530 – 1,710kHz (10kHz step)
531 – 1,710kHz (9kHz step)

Middle Easten models:

531 – 1,602kHz(with the MW interval set at
9kHz)
5.95 – 17.90MHz (with the SW interval set
at 5kHz)

Australian, Israel, and Thai models :

531 – 1,602kHz(with the AM tuning
interval set at 9kHz)
530 – 1,710kHz (with the AM tuning
interval set at 10kHz)

Other models:

MW :
531 – 1,602kHz(with the MW tuning
interval set at 9kHz)
530 – 1,710kHz (with the MW tuning
interval set at 10kHz)
SW :
5.95 – 17.90 MHz (with the SW tuning
interval set at 5kHz)

Intermediate frequency

450kHz

Antenna

AM loop antenna
External antenna terminal

— Continued on next page —

Summary of Contents for STR-WX5

Page 1: ... SUPER WOOFER Voltage 1V impedance 1kΩ Video section Inputs AV INPUT VIDEO phono jack 1Vp p 75Ω Outputs MONITOR OUT phono jack 1Vp p 75Ω Tuner section FM stereo FM AM superheterodyne tuner FM tuner section Tuning range 87 5 108 0MHz Antenna terminals 75Ω unbalanced Intermediate frequency 10 7MHz AM tuner section Tuning range Latin America models 530 1 710kHz 10kHz step 531 1 710kHz 9kHz step Middl...

Page 2: ...n 20 4 13 Printed Wiring Board Sliding Panel Section 21 4 14 Printed Wiring Board Trans Section 22 4 15 Schematic Diagram Trans Section 23 4 16 IC Block Diagrams 24 4 17 IC Pin Function 26 5 EXPLODED VIEWS 6 1 Case and Sliding Panel Section 29 6 2 Front Panel Section 30 6 3 Slide Mechanism Section 31 6 4 Circuit Boards and Back Panel Section 32 7 ELECTRICAL PARTS LIST 33 LABEL MODEL NUMBER No MODE...

Page 3: ... 1kHz buttons ts 4kHz buttons td 16kHz buttons tf NAME IN button tg DELETE button th CHAR button tj INSERT button tk OPEN SENSOR ON OFF button tl EQ MEMORY button Abbreviation JE Tourist model wd MOVIE button wf ENTER NEXT button and indicator wg button and indicator wh C MULTI JOG STATION c dial wj 0 button and indicator wk CD EDIT button wl CD PLAY MODE button e CD REPEAT button ea NON STOP butt...

Page 4: ...e OPEN CLOSE button to open the Sliding panel assembly 1 Screw BVTP2 6x8 4 Four screw BVTP2 6x8 5 Holder L assembly a a b b 6 Four screw BVTP2 6x8 7 Holder R assembly 8 Remove the Level slider direction of arrow 2 Screw BVTP2 6x8 3 Top bracket 2 2 LEVEL SLIDER NOTE FOR INSTALLATION Attach in the reverse order but make sure the rollers a b of the holder L assembly and holder R assembly fit into the...

Page 5: ...ted This mode can run the CD sled motor freely Use this mode for instance when cleaning the pick up Procedure 1 Select the function CD 2 Press three buttons FLASH ENTER NEXT and KARAOKE PON MIX simultaneously 3 The Sled Servo mode is selected if CD is blinking on the fluorescent indicator tube 4 With the CD in stop status press button move the pick up to outside track or 0 button to inside track 5...

Page 6: ...nnected This mode can be used for checking the operations of the CD player and tape deck When problems occur Aging stops and the stopped state is displayed on the fluorescent indicator tube When no problems Aging continues Preparations Set the CD on the DISC1 tray Insert a commercially available tape for recording tapes which contents can be erased etc in decks A and B Setting the aging mode Press...

Page 7: ...ded FF for 20 seconds The following procedure is performed when the tape end is reached before the 20 seconds 8 The REV side is played back for 100 seconds 9 The tape is rewound to the head REW 10 The tape in deck A is rewound to the head 11 The FWD side is played back for 100 seconds 12 The tape is fast forwarded FF for 20 seconds The following procedure is performed when the end is reached befor...

Page 8: ... the fluorescent indicator tube When no problems Aging is carried out repeatedly After 65000 times AGING STOP is displayed and aging stops Aging Sequence Counts up n n Panel open Panel close n Stops for one second in the opened state Stops for one second in the closed state Each time the DISPLAY DEMO button is pressed the display switches as follows AGING No of agings carried out OP MAX Maximum ti...

Page 9: ...e dc with respect to ground under no signal detuned conditions Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F FM f AM L AUDIO AV INPUT g MD VIDEO i VIDEO AV INPUT E PB D...

Page 10: ...SECTION COM DIN ST L COM DATA ST CE COM CLK MUTE STEREO TUNED POWER ON OFF FM AM TUNER TUNER UNIT IS SUPPLIED AS THE ASSEMBLED BLOCK Page 11 Page 11 R CH Same as L ch SIGNAL PATH FM AUDIO AV INPUT MD VIDEO PB VIDEO AV INPUT REC CD Abbreviation EA3 Saudi Arabia model 20 C POWER SECTION 43 10 11 21 18 19 42 86 87 88 R CH R CH AV SWITCH Q6301 96 97 GEQ LAT 95 LEVEL B 3 LEVEL A 2 2 1 3 DBFB B2 5 DBFB ...

Page 11: ...R TW JE AC IN PHONES J755 R CH MONITOR OUT J781 SUPER WOOFER FRONT SPEAKER TB751 REAR SPEAKER TB201 M M901 FAN ST 10V UNREG 12V 7V 5 6V 5V D813 D821 7V B B VG Rch MOTOR MUTE SWITCH Q901 MUTE Q181 SWITCH Q853 D852 853 PROTECTOR VCC ON MUTE ST 10V REG IC804 VOLTAGE SELECTOR S871 VF1 VF2 AC1 AC2 T901 POWER TRANSFORMER MAIN SECTION B 09 Page 17 8 1 4 3 1 L 6 7 2 20 15 RECT D810 811 7V REG IC801 5 6V R...

Page 12: ...2 B 11 D131 E 9 D401 D 5 D402 D 5 D403 C 9 D751 F 11 D752 F 12 D761 E 12 D781 G 10 D801 E 4 D802 F 5 D803 E 4 D804 C 2 D805 F 4 D806 F 4 D807 F 4 D808 F 4 D810 E 4 D811 E 4 D812 C 2 D813 B 2 D851 G 8 D852 G 8 D853 G 8 IC111 C 10 IC112 E 10 IC113 E 9 IC401 E 7 IC402 D 6 IC801 B 2 IC802 C 3 IC803 B 2 IC804 D 4 IC851 G 9 Q121 B 2 Q132 D 10 Q182 E 11 Q183 E 8 Q401 D 7 Q731 G 11 Q732 G 10 Q801 C 2 Q851...

Page 13: ...STR WX5 13 13 4 4 SCHEMATIC DIAGRAM MAIN 1 2 SECTION Refer to page 24 for IC Block Diagrams Page 15 Page 14 Page 14 Page 14 Page 14 Page 18 16 ...

Page 14: ...o page 24 for IC Block Diagrams The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified Page 20 Page 23 Page 15 Page 20 Page 16 Page 16 Page 16 Page 13 Page 13 Page 13 Page 13 16 0 8 0 1 Q854 BN1F4M Q855 2SC2958L RELAY SWITCH R857 22k 0 ...

Page 15: ...ON 4 7 PRINTED WIRING BOARD AV MIC SECTION Refer to page 24 for IC Block Diagrams Refer to page 9 for Circuit Boards Location Page 14 Page 18 Page 13 Page 16 16 MODEL MODEL MODEL MODEL Page 12 Page 12 Page 19 Page 17 16 16 4 MODEL MODEL MODEL MODEL 4 ...

Page 16: ...6 4 8 SCHEMATIC DIAGRAM POWER AMP SECTION The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified Page 14 Page 14 Page 14 Page 15 16 1 4W 1 4W 1 4W ...

Page 17: ...STR WX5 17 17 4 9 PRINTED WIRING BOARD POWER AMP SECTION Refer to page 9 for Circuit Boards Location Page 12 Page 12 Page 15 Page 12 16 3 3 16 ...

Page 18: ...STR WX5 18 18 4 10 SCHEMATIC DIAGRAM DISPLAY SECTION Refer to page 25 for IC Block Diagrams Refer to page 26 for IC Pin Function Page 20 Page 13 Page 20 Page 15 16 3 6 3 5 3 5 ...

Page 19: ... 6 D517 D 6 D518 D 5 D519 D 5 D520 D 4 D521 D 5 D522 D 3 IC501 B 4 IC502 E 2 IC503 B 10 IC505 D 10 IC506 C 10 IC601 B 7 Q501 D 3 Q502 D 8 Q503 D 7 Q505 D 7 Q504 D 7 Q506 D 6 Q507 D 6 Q508 D 5 Q509 D 5 Q510 D 5 Q511 D 4 Q512 E 3 Q513 B 9 Semiconductor Location Page 12 Page 21 Page 15 Page 21 16 3 EA4 TH JE MODEL EXCEPT EA4 TH JE MODEL E AR MODEL EXCEPT E AR MODEL EXCEPT AUS MODEL EXCEPT E AR JE MOD...

Page 20: ...STR WX5 20 20 4 12 SCHEMATIC DIAGRAM SLIDING PANEL SECTION Refer to page 28 for IC Block Diagrams Page 18 Page 14 Page 18 Page 14 0 6 12 7 12 7 0 6 0 7 4 5 0 0 0 3 6 3 5 16 3 5 3 5 4 9 4 9 4 9 ...

Page 21: ...9 for Circuit Boards Location Page 12 Page 19 Page 12 Page 19 3 3 3 16 16 16 Ref No Location Semiconductor Location D631 A 9 D632 B 4 D633 C 5 D634 A 6 D635 C 7 D638 B 3 D639 B 1 D640 B 2 D641 B 6 D642 C 5 Q531 B 9 Q532 B 7 Q533 C 4 Q534 A 7 Q535 B 8 Q538 C 2 Q539 C 1 Q540 C 2 ...

Page 22: ...STR WX5 22 22 4 14 PRINTED WIRING BOARD TRANS SECTION Refer to page 9 for Circuit Boards Location 16 4 12 ...

Page 23: ...23 4 15 SCHEMATIC DIAGRAM TRANS SECTION Page 14 16 The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified STR WX5 ...

Page 24: ...A D 20KBIT SRAM LPF2 D A 1 2 3 4 5 6 7 8 9 10 14 13 12 11 CLOCK RESET MO MI D1 DO0 DO1 VCC CLOCK REF OP2IN OP2OUT LPF2IN LPF2OUT LPF1IN LPF1OUT OP1OUT OP1IN CC1 CC2 GND 1 2 3 4 5 6 7 8 OVER LOAD DET F F OFFSET DET LATCH AUTORESET VCC ON MUTE AC OFF DET VCC IC851 uPC1237HA MIC ECHO SECTION IC6002 M65850P OSCILLATOR 1 2 VCC AUTO RESET LPF1 MAIN CONTROL A D 20KBIT SRAM LPF2 D A 1 2 3 4 5 6 7 8 9 10 1...

Page 25: ...ENT BPF DET BPF DET BPF DET BPF DET DET RESET Bias 1 2 3 4 5 6 7 8 B1 B0 C COM CO INH VEE VSS VDD B COM A COM A1 A0 A B C C1 9 10 11 12 13 14 15 16 OPEN OPEN OPEN SLIDING PANEL SECTION IC891 LB1641 IC506 BA3833F 1 2 3 4 5 6 7 8 9 10 GND MOTOR DRIVE NOISE FILTER CLAMP FWD IN REV IN VCC 1 VCC 2 NOISE FILTER MOTOR DRIVE MOTOR DRIVE MOTOR DRIVE T S D O C P FWD REV STOP CONTROL LOGIC ...

Page 26: ...d to ground X tal 5MHz Power supply 5V X tal 32kHz Reset signal input RDS clock input RDS data input Rotary encoder VOLUME pulse input Rotary encoder MULTI JOG STATION pulse input Spectrum analyzer control output Power supply 5V Analog power supply 5V Audio input for VACS control Spectrum analyzer data input Key data input Back up signal input Analog ground Ground FL data output FL clock output FL...

Page 27: ...est terminal Auto indicator output LED driver output Serial data input output Serial clock input output LED driver output Not used LED driver output Ground LED driver output Destination terminal Model select terminal Ground VCD select terminal L NON VCD Connected to ground Pin Name AV IN SENSOR IN SIRCS IN SPEANE RST GND GND GND GND SOFT SEN MOVIE A MOVIE G MUSIC A MUSIC G I2C DATA I2C CLK GAME A ...

Page 28: ...contol output Panel open switch output Panel close switch output ST mute signal output Stereo detection input for tuner Tuned detection input for tuner Tuner PLL latch output Tuner PLL data input Sub clock output Tuner PLL data output Tuner clock output Power on off control output GEQ latch output GEQ data output GEQ clock output Not used Pin No 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 9...

Page 29: ...The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified 29 1 4 219 918 01 KNOB JOG 2 X 4951 659 1 KNOB VOL ASSY 3 1 773 125 11 WIRE FLAT TYPE 19 CORE 4 X 4951 660 1 SLIDING PANEL SUB ASSY 5 1 669 959 11 LOADING PANEL BOARD 6 1 CASE AND SLIDING PANEL SECTION Ref No Part No Description Remark Ref No Part No Description Remark 6 4 900...

Page 30: ...DIODE KU381 40 51 X 4951 664 1 FRONT PANEL ASSY EXCEPT JE 51 X 4951 776 1 FRONT PANEL ASSY JE 52 4 900 832 11 KNOB MIC EXCEPT JE 53 X 4951 665 1 ESCUTCHEON L ASSY 54 X 4949 994 1 ESCUTCHEON EQ ASSY 57 4 962 708 11 EMBLEM 4 A SONY 58 4 951 620 01 SCREW 2 6 8 BVTP 59 A 4419 953 A MIC ECHO BOARD COMPLETE EXCEPT EA4 TH JE 59 A 4414 718 A MIC ECHO BOARD COMPLETE JE 59 A 4414 778 A MIC ECHO BOARD COMPLE...

Page 31: ...OARD 112 4 212 966 01 SPRING LEVEL 113 4 212 965 01 STOPPER LEVEL M891 A 4660 926 A MOTOR CDM ASSY 101 4 900 844 01 LEVEL SLIDER 102 4 951 620 01 SCREW 2 6X8 BVTP 103 X 4950 394 2 HOLDER L ASSY 104 X 4950 395 2 HOLDER R ASSY 105 4 900 845 01 BRACKET SLIDER 106 4 900 846 01 GEAR 1 107 4 900 862 01 SHAFT CENTER 102 102 102 102 104 105 106 107 106 102 101 103 102 102 102 M891 3 109 110 108 111 113 11...

Page 32: ...9 951 A MAIN BOARD COMPLETE EXCEPT EA4 TH JE 151 A 4426 830 A MAIN BOARD COMPLETE EA4 TH 151 A 4426 825 A MAIN BOARD COMPLETE JE 152 1 669 963 11 SURR SPK BOARD 153 1 233 545 32 ENCAPSULATED COMPONENT TUNER UNIT E EA4 TH AUS AR 153 1 233 546 32 ENCAPSULATED COMPONENT TUNER UNIT EA3 MY SP TW 153 1 693 385 31 TUNER JE 154 A 4419 954 A POWER AMP BOARD COMPLETE EXCEPT EA4 TH JE 154 A 4426 833 A POWER ...

Page 33: ...R 5P CN6302 1 560 666 00 PIN CONNECTOR 3P DIODE D6301 8 719 911 19 DIODE 1SS119 25 D6302 8 719 911 19 DIODE 1SS119 25 D6303 8 719 911 19 DIODE 1SS119 25 JACK J6301 1 784 901 11 JACK PIN 3P AV INPUT VIDEO2 COIL L6301 1 412 473 21 INDUCTOR OuH TRANSISTOR Q6301 8 729 900 36 TRANSISTOR DTC124ES RESISTOR R6301 1 249 417 11 CARBON 1K 5 1 4W F R6302 1 249 417 11 CARBON 1K 5 1 4W F R6303 1 249 441 11 CARB...

Page 34: ...ILE MUSIC S634 1 762 378 11 SWITCH TACTILE MOVIE S635 1 762 378 11 SWITCH TACTILE DSP DELAY S636 1 762 378 11 SWITCH TACTILE CD REPEAT S637 1 762 378 11 SWITCH TACTILE FLASH S638 1 762 378 11 SWITCH TACTILE DSP REVERB S639 1 762 378 11 SWITCH TACTILE CD PLAY MODE S640 1 762 378 11 SWITCH TACTILE CD EDIT S641 1 762 378 11 SWITCH TACTILE NON STOP S642 1 762 378 11 SWITCH TACTILE DBFB S643 1 762 378 ...

Page 35: ...7uF 20 25V C822 1 126 940 11 ELECT 330uF 20 25V C823 1 126 960 11 ELECT 1uF 20 50V C824 1 104 665 11 ELECT 100uF 20 10V C825 1 126 959 11 ELECT 0 47uF 20 50V C826 1 104 664 11 ELECT 47uF 20 25V C851 1 126 964 11 ELECT 10uF 20 50V C852 1 104 665 11 ELECT 100uF 20 10V C853 1 164 159 11 CERAMIC 0 1uF 50V C854 1 126 961 11 ELECT 2 2uF 20 50V C855 1 126 934 11 ELECT 220uF 20 10V C856 1 104 665 11 ELECT...

Page 36: ...72 1 249 429 11 CARBON 10K 5 1 4W R173 1 249 421 11 CARBON 2 2K 5 1 4W F R182 1 249 421 11 CARBON 2 2K 5 1 4W F R184 1 249 435 11 CARBON 33K 5 1 4W R185 1 249 439 11 CARBON 68K 5 1 4W R186 1 247 883 00 CARBON 150K 5 1 4W R188 1 249 437 11 CARBON 47K 5 1 4W R189 1 249 429 11 CARBON 10K 5 1 4W R190 1 247 895 00 CARBON 470K 5 1 4W R191 1 249 417 11 CARBON 1K 5 1 4W F R192 1 249 437 11 CARBON 47K 5 1 ...

Page 37: ...V JE C6016 1 126 967 11 ELECT 47uF 20 16V JE C6017 1 164 159 11 CERAMIC 0 1uF 50V JE C6018 1 126 967 11 ELECT 47uF 20 16V JE C6019 1 136 495 11 FILM 0 068uF 5 50V JE C6020 1 162 305 11 CERAMIC 0 0068uF 30 16V JE C6021 1 162 294 31 CERAMIC 0 001uF 10 50V JE C6022 1 126 160 11 ELECT 1uF 20 50V JE C6023 1 161 494 00 CERAMIC 0 022uF 25V JE C6024 1 136 167 00 FILM 0 15uF 5 50V JE C6025 1 126 957 11 ELE...

Page 38: ...6 157 11 ELECT 10uF 20 16V C602 1 162 306 11 CERAMIC 0 01uF 20 16V C603 1 162 294 31 CERAMIC 0 001uF 10 50V C604 1 162 294 31 CERAMIC 0 001uF 10 50V C605 1 124 261 00 ELECT 10uF 20 50V C606 1 124 261 00 ELECT 10uF 20 50V C607 1 124 261 00 ELECT 10uF 20 50V C608 1 124 589 11 ELECT 47uF 20 16V C609 1 162 282 31 CERAMIC 100PF 10 50V C610 1 162 288 31 CERAMIC 330PF 10 50V C611 1 162 288 31 CERAMIC 330...

Page 39: ... 31 CARBON 100 5 1 4W R535 1 247 807 31 CARBON 100 5 1 4W R536 1 247 807 31 CARBON 100 5 1 4W R537 1 247 807 31 CARBON 100 5 1 4W R538 1 247 807 31 CARBON 100 5 1 4W R539 1 247 807 31 CARBON 100 5 1 4W R540 1 247 807 31 CARBON 100 5 1 4W R541 1 247 807 31 CARBON 100 5 1 4W R542 1 247 807 31 CARBON 100 5 1 4W R543 1 247 807 31 CARBON 100 5 1 4W R544 1 247 807 31 CARBON 100 5 1 4W R546 1 249 441 11 ...

Page 40: ... TACTILE SURROUND S521 1 762 378 11 SWITCH TACTILE SURROUND S522 1 762 378 11 SWITCH TACTILE DBFB S523 1 762 378 11 SWITCH TACTILE DBFB S524 1 762 378 11 SWITCH TACTILE EQ 63Hz S525 1 762 378 11 SWITCH TACTILE EQ 63Hz S526 1 762 378 11 SWITCH TACTILE EQ 250Hz S527 1 762 378 11 SWITCH TACTILE EQ 250Hz S528 1 762 378 11 SWITCH TACTILE EQ 1kHz S529 1 762 378 11 SWITCH TACTILE EQ 1kHz S530 1 762 378 1...

Page 41: ...11 CARBON 10K 5 1 4W R959 1 249 429 11 CARBON 10K 5 1 4W R960 1 249 397 11 CARBON 22 5 1 4W F R961 1 249 397 11 CARBON 22 5 1 4W F R963 1 249 417 11 CARBON 1K 5 1 4W F R964 1 249 431 11 CARBON 15K 5 1 4W R965 1 249 441 11 CARBON 100K 5 1 4W R970 1 220 893 11 METAL 0 22 10 5W R971 1 249 441 11 CARBON 100K 5 1 4W R972 1 247 885 00 CARBON 180K 5 1 4W R973 1 249 441 11 CARBON 100K 5 1 4W R974 1 212 84...

Page 42: ...ADAPTOR CONVERSION 2P EA3 SP MY TW FL601 1 517 775 11 INDICATOR TUBE FLUORESCENT IC504 8 719 070 85 DIODE KU381 40 M891 A 4660 926 A MOTOR CDM ASSY M901 1 763 372 11 FAN DC T901 1 433 932 11 TRANSFORMER POWER HARDWARE LIST 1 7 685 647 79 SCREW BVTP 3 10 TYPE2 N S 2 7 685 646 79 SCREW BVTP 3 8 TYPE2 N S 3 7 621 775 20 SCREW B 2 6 5 4 7 685 650 79 SCREW BVTP 3 16 TYPE2 IT 3 5 7 685 881 09 SCREW BVTT...

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