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SERVICE MANUAL

MICROFILM

STR-VX500

E Model

FM STEREO/FM-AM RECEIVER

SPECIFICATIONS

This set is the tuner and amplifier
section in MHC-VX500.

Amplifier section

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

120 + 120W (6

Ω

at 1kHz DIN)

Continuous RMS power output (Reference)

FRONT SPEAKER: 150 + 150W
(6

Ω

at 1kHz, 10% THD)

Inputs

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

Ω

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

Ω

MIX MIC 1/2 (phone jack): sensitivity 1mV,
impedance 10k

Ω

Output

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

Ω

PHONES (stereo phone jack): accepts
headphones of 8

Ω

or more.

FRONT SPEAKER:
accepts impedance of 6 to 16

Ω

REAR SPEAKER:
accepts impedance of 16

Ω

SUPER WOOFER:
Voltage 1V, impedance 1k

Ω

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range

87.5 – 108.0MHz

Antenna terminals

Ω

unbalanced

Intermediate frequency

10.7MHz

AM tuner section

Tuning range

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 – 17.90MHz (with the SW tuning
interval set at 5kHz)

Intermediate frequency

450kHz

Antenna

AM loop antenna External antenna terminal

General

Power requirements

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

Power consumption

290W

Dimensions (w/h/d)

Approx. 288

205

375mm

Mass

Approx. 8.6kg

Design and specifications are subject to change without notice.

Содержание STR-VX500

Страница 1: ...s headphones of 8Ω or more FRONT SPEAKER accepts impedance of 6 to 16Ω REAR SPEAKER accepts impedance of 16Ω SUPER WOOFER Voltage 1V impedance 1kΩ 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 MW 531 1 602kHz with the MW tuning interval set at 9kHz 530 1 7...

Страница 2: ...20 4 11 Printed Wiring Board Sliding Panel Section 21 4 12 Printed Wiring Board Trans Section 22 4 13 Schematic Diagram Trans Section 23 4 14 Schematic Diagram AV Mic Section 24 4 15 Printed Wiring Board AV Mic Section 25 4 16 IC Block Diagrams 26 4 17 IC Pin Function 29 5 EXPLODED VIEWS 5 1 Case and Sliding Panel Section 32 5 2 Front Panel Section 33 5 3 Slide Mechanism Section 34 5 4 Circuit Boa...

Страница 3: ...LUME dial qh M button qj ENTER NEXT button qk MULTI JOG STATION dial ql m button w NON STOP button wa EDIT button ws FLASH button wd PLAY MODE button wf REPEAT button wg PHONES jack wh LOOP button wj CLOCK TIMER SET button wk TIMER SELECT button wl FUNCTION button e PROLOGIC button ea DSP button es DBFB button ed DISPLAY DEMO button ef I 1 POWER button eg MIX MIC2 jack eh KEY CONTROL ej KEY CONTRO...

Страница 4: ...4 Rear Panel 1 SYSTEM CONTROL jack 2 ANTENNA terminal 3 REAR SPEAKER terminal 4 MONITOR OUT jack 5 FRONT SPEAKER terminal 6 MD VIDEO 1 jack 2 3 4 1 5 6 ...

Страница 5: ... the rollers a b of the holder L assembly and holder R assembly fit into the grooves of the level slider 4 Flat type cable 19 core 2 Screw BVTP 3 8 3 Holder level 5 Sliding panel assembly Slide mechanism 1 Push the OPEN CLOSE button to open the Sliding panel assembly 1 Screw BVTP2 6 8 4 Four screws BVTP2 6 8 5 Holder L assembly a a b b 6 Four screws BVTP2 6 8 7 Holder R assembly 8 Remove the Level...

Страница 6: ...ected 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 M button move the pick up to outside track or m button to inside tra...

Страница 7: ... connected 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 Pr...

Страница 8: ...e in deck A is rewound to the head 2 The FWD side is played back for 2 minutes 3 The tape is fast forwarded FF for 20 seconds The following procedure is performed when the tape end is reached before the 20 seconds 4 The REV side is played back for 2 minutes 5 The tape is rewound to the head REW 6 The tape in deck B is rewound to the head 7 The FWD side is played back for 2 minutes 8 The tape is fa...

Страница 9: ...nd 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 time taken for OPEN In seconds OP Min Minimum time taken for OPEN In seconds CL Max Maximum time taken for CLOSE In seconds CL...

Страница 10: ...ER ON OFF FM AM TUNER TUNER UNIT IS SUPPLIED AS THE ASSEMBLED BLOCK R CH Same as L ch SIGNAL PATH FM AUDIO AV INPUT MD VIDEO PB VIDEO AV INPUT REC CD 20 C POWER SECTION 43 10 11 21 18 19 42 86 87 88 R CH R CH R CH AV SWITCH Q6301 96 97 GEQ LAT 95 3 PRO LOG DATA LEVEL A 2 2 1 3 DBFB B2 5 DBFB B1 6 42 41 33 1 2 3 32 34 VIDEO L CH S W MUTE L R TA MUTE 38 36 VOLUME IC111 2 2 40 AMP IC113 2 2 39 60 57 ...

Страница 11: ...RONT SPEAKER TB751 M M901 FAN ST 10V UNREG 12V 7V 5 6V 5V D813 7V B B VG R CH 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 16 8 1 4 3 1 6 7 2 20 15 RECT D810 811 7V REG IC801 5 6V REG IC803 FAN MOTOR REG Q731 732 POWER ON MUTE Q852 RECT D805 808 RECT D801 RECT D802 803 VG REG...

Страница 12: ...g U B Line V B Line H adjustment for repair Voltages and waveforms are 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 Sign...

Страница 13: ... F 11 D752 E 10 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 F 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 G 9 Q852 H 8 Q853 H 8 Q854 G 7 Q855 G 6 Semico...

Страница 14: ...STR VX500 14 14 4 4 SCHEMATIC DIAGRAM MAIN 1 2 SECTION Refer to page 27 for IC Block Diagrams ...

Страница 15: ...fer to page 13 for Printed Wiring Board Refer to page 27 for IC Block Diagrams 0 8 0 1 Q854 BN1F4M Q855 2SC2958L RELAY SWITCH R857 22k 0 The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified ...

Страница 16: ...STR VX500 16 16 4 6 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 ...

Страница 17: ...STR VX500 17 17 4 7 PRINTED WIRING BOARD POWER AMP SECTION Refer to page 9 for Circuit Boards Location 13 25 ...

Страница 18: ...STR VX500 18 18 4 8 SCHEMATIC DIAGRAM DISPLAY SECTION Refer to page 28 for IC Block Diagrams Refer to page 12 for Waveform EA MODEL MY SP IA HK MODEL ...

Страница 19: ... D502 D 3 D504 E 4 D505 F 4 D506 F 3 D507 F 3 D509 F 6 D511 D 1 D512 D 8 D513 D 7 D514 D 7 D515 D 7 D516 D 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 ...

Страница 20: ...STR VX500 20 20 4 10 SCHEMATIC DIAGRAM SLIDING PANEL SECTION Refer to page 28 for IC Block Diagrams ...

Страница 21: ...STR VX500 21 21 4 11 PRINTED WIRING BOARD SLIDING PANEL SECTION Refer to page 9 for Circuit Boards Location 19 13 19 13 ...

Страница 22: ...STR VX500 22 22 4 12 PRINTED WIRING BOARD TRANS SECTION Refer to page 9 for Circuit Boards Location 13 ...

Страница 23: ... 4 13 SCHEMATIC DIAGRAM TRANS SECTION STR VX500 Page 15 16 T6 3AL 250V 2 5A 2 5A The components identified by mark or dotted line with mark are critical for safety Replace only with part number specified ...

Страница 24: ...24 4 14 SCHEMATIC DIAGRAM AV MIC SECTION STR VX500 Refer to page 28 for IC Block Diagrams ...

Страница 25: ...25 4 15 PRINTED WIRING BOARD AV MIC SECTION STR VX500 Refer to page 9 for Circuit Boards Location 13 13 ...

Страница 26: ...RECT C MODE LOGIC LOGIC MASTER VOL NF SW S S S P P B B B B P B C D R L C S L R P P P B P B P B P B P B S MASTER VOL VDD PCM PCM CONTROL SRAM IN FILTER R L C S R P B P B P B P B L L R L R R BPF2 R BPF1 S DC OUT C DC OUT R DC OUT L DC OUT V REF VCC C OUT S OUT R OUT L OUT GND L IN R IN S IN DELAY OUT C VOL IN DET IREF R OUT R NF L NF L OUT L BPF2 L BPF1 RT IN LT IN DC CUT C MODE GND NS BPF1 OSC NS B...

Страница 27: ... 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 IC851 µPC1237HA 1 2 3 4 5 6 7 8 OVER LOAD DET F F OFFSET DET LATCH AUTORESET VCC ON MUTE AC OFF DET VCC ...

Страница 28: ...E CURRENT BPF DET BPF DET BPF DET BPF DET DET RESET Bias MOTOR BOARD IC891 LB1641 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 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 14 13 12 11 CLOCK RESET MO MI D1 DO0 DO1 VCC CLOCK REF...

Страница 29: ...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 l...

Страница 30: ...t terminal Audio 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 G...

Страница 31: ... switch output ST mute signal output Stereo detection input for tuner Tuner 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 Name GND MOTOR1 MOTOR2 PANEL OPEN PANEL CLOSE ST MUTE STEREO TUNED LAT DATA IN PCL OUT DATA OUT CLK POWER...

Страница 32: ... identified by mark or dotted line with mark are critical for safety Replace only with part number specified 32 Ref No Part No Description Remarks Ref No Part No Description Remarks A A 10 10 10 10 7 2 2 2 2 2 2 1 1 Slide mechanism Supplied with S653 Supplied with S652 Front panel 11 6 5 4 1 2 3 8 9 11 11 11 11 11 5 1 CASE AND SLIDING PANEL SECTION 1 4 219 918 01 KNOB JOG 2 X 4951 659 1 KNOB VOLUM...

Страница 33: ...20 01 SCREW 2 6 8 BVTP 59 A 4414 708 A MIC ECHO BOARD COMPLETE EA HK MY SP 59 A 4414 724 A MIC ECHO BOARD COMPLETE IA 60 1 669 960 11 HEADPHONE BOARD 61 A 4417 072 A PANELBOARD COMPLETE HK MY SP 61 A 4414 737 A PANEL BOARD COMPLETE IA 61 A 4426 837 A PANEL BOARD COMPLETE EA 62 4 932 810 11 CUSHION FL 63 4 900 849 01 HOLDER FL 64 1 669 957 11 FRONT AV BOARD 65 4 900 845 01 BRACKET SLIDER 66 1 669 9...

Страница 34: ... 01 LEVEL SLIDER 102 4 951 620 01 SCREW 2 6X8 BVTP 103 X 4950 394 1 HOLDER L ASSY 104 X 4950 395 1 HOLDER R ASSY 105 4 210 042 01 BRACKET SENSOR 106 4 900 846 01 GEAR 1 107 4 900 862 01 SHAFT CENTER 108 4 900 864 01 BRACKET TOP 109 4 900 847 01 GEAR 2 110 3 344 059 01 BELT L 111 1 669 965 11 MOTOR BOARD 112 4 212 966 01 SPRING LAVEL 113 4 212 965 01 STOPPER LAVEL M891 A 4660 926 A MOTOR CDM ASSY ...

Страница 35: ...FM TUNER 154 A 4419 954 A POWER AMP BOARD COMPLETE EA HK MY SP 154 A 4426 428 A POWER AMP BOARD COMPLETE IA 155 1 669 954 12 SECONDARY BOARD 156 1 669 953 11 PRIMARY BOARD 157 4 900 848 51 BACK PANEL 158 4 970 381 11 FOOT REAR 159 3 703 244 00 BUSHING 2104 CORD 160 1 777 071 21 CORD POWER EA HK MY SP 160 1 782 315 11 CORD POWER IA 161 1 569 007 11 ADAPTOR CONVERSION 2P IA 161 1 569 008 21 ADAPTOR ...

Страница 36: ...IODE 1SS133T 72 JACK J6301 1 784 901 11 JACK PIN 3P AV INPUT COIL L6301 1 412 473 21 INDUCTOR 0uH TRANSISTOR Q6301 8 729 900 36 TRANSISTOR BA1F4M TP 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 CARBON 100K 5 1 4W R6304 1 249 441 11 CARBON 100K 5 1 4W R6305 1 249 425 11 CARBON 4 7K 5 1 4W F R6306 1 249 425 11 CARBON 4 7K 5 1 4W F R6307 1 24...

Страница 37: ... CARBON 100 5 1 4W R677 1 247 807 31 CARBON 100 5 1 4W R678 1 247 807 31 CARBON 100 5 1 4W R679 1 247 807 31 CARBON 100 5 1 4W R680 1 247 807 31 CARBON 100 5 1 4W SWITCH S631 1 762 751 11 SWITCH TACTILE REW S632 1 762 751 11 SWITCH TACTILE GAME S633 1 762 751 11 SWITCH TACTILE MUSIC S634 1 762 751 11 SWITCH TACTILE MOVIE S635 1 762 751 11 SWITCH TACTILE PROLOGIC S636 1 762 751 11 SWITCH TACTILE CD...

Страница 38: ...F 20 35V C806 1 126 964 11 ELECT 10uF 20 50V C807 1 136 165 00 FILM 0 1uF 5 50V C808 1 136 165 00 FILM 0 1uF 5 50V C809 1 126 943 11 ELECT 2200uF 20 25V C810 1 126 943 11 ELECT 2200uF 20 25V C815 1 126 940 11 ELECT 330uF 20 25V C816 1 126 951 11 ELECT 470uF 20 35V C818 1 126 959 11 ELECT 0 47uF 20 50V C819 1 104 664 11 ELECT 47uF 20 25V C820 1 126 959 11 ELECT 0 47uF 20 50V C821 1 104 664 11 ELECT...

Страница 39: ... 00 CARBON 150K 5 1 4W R138 1 249 437 11 CARBON 47K 5 1 4W R139 1 247 903 00 CARBON 1M 5 1 4W R140 1 249 441 11 CARBON 100K 5 1 4W R141 1 249 418 11 CARBON 1 2K 5 1 4W F R142 1 249 437 11 CARBON 47K 5 1 4W R145 1 247 887 00 CARBON 220K 5 1 4W R153 1 249 417 11 CARBON 1K 5 1 4W F R154 1 249 441 11 CARBON 100K 5 1 4W R155 1 249 441 11 CARBON 100K 5 1 4W R156 1 249 417 11 CARBON 1K 5 1 4W F R158 1 24...

Страница 40: ...N FRONT SPEAKER A 4414 708 A MIC ECHO BOARD COMPLETE EA HK MY SP A 4414 724 A MIC ECHO BOARD COMPLETE IA CAPACITOR C6001 1 162 306 11 CERAMIC 0 01uF 30 16V C6002 1 124 257 00 ELECT 2 2uF 20 50V C6003 1 162 306 11 CERAMIC 0 01uF 30 16V C6004 1 124 257 00 ELECT 2 2uF 20 50V C6005 1 162 294 31 CERAMIC 0 001uF 10 50V C6006 1 162 215 31 CERAMIC 47PF 5 50V C6007 1 162 290 31 CERAMIC 470PF 10 50V C6008 1...

Страница 41: ... 1 162 205 31 CERAMIC 18PF 5 50V C502 1 162 205 31 CERAMIC 18PF 5 50V C503 1 104 905 11 CAPACITOR 0 22F 5 5V C505 1 164 159 11 CERAMIC 0 1uF 50V C506 1 164 159 11 CERAMIC 0 1uF 50V C507 1 164 159 11 CERAMIC 0 1uF 50V C508 1 164 159 11 CERAMIC 0 1uF 50V C509 1 124 589 11 ELECT 47uF 20 16V C510 1 162 306 11 CERAMIC 0 01uF 30 16V C517 1 162 303 11 CERAMIC 0 0033uF 30 16V C518 1 126 157 11 ELECT 10uF ...

Страница 42: ... 5 1 4W R504 1 249 437 11 CARBON 47K 5 1 4W R505 1 249 429 11 CARBON 10K 5 1 4W R506 1 249 429 11 CARBON 10K 5 1 4W R507 1 249 441 11 CARBON 100K 5 1 4W R514 1 249 429 11 CARBON 10K 5 1 4W EA R516 1 249 427 11 CARBON 6 8K 5 1 4W F R517 1 249 427 11 CARBON 6 8K 5 1 4W F R518 1 247 807 31 CARBON 100 5 1 4W R519 1 247 807 31 CARBON 100 5 1 4W R520 1 247 807 31 CARBON 100 5 1 4W R521 1 247 807 31 CARB...

Страница 43: ... 4W R621 1 247 843 11 CARBON 3 3K 5 1 4W R622 1 247 843 11 CARBON 3 3K 5 1 4W R623 1 249 425 11 CARBON 4 7K 5 1 4W F R631 1 249 410 11 CARBON 270 5 1 4W F SWITCH S501 1 762 751 11 SWITCH TACTILE EQ 16kHz S502 1 762 751 11 SWITCH TACTILE NAME IN S503 1 762 751 11 SWITCH TACTILE CHAR S504 1 762 751 11 SWITCH TACTILE EQ MEMORY S505 1 762 751 11 SWITCH TACTILE OPEN CLOSE S506 1 762 751 11 SWITCH TACTI...

Страница 44: ...41 11 CARBON 100K 5 1 4W R920 1 217 156 00 REGISTER 0 22 10 5W F R932 1 212 881 11 FUSIBLE 100 5 1 4W F R933 1 249 421 11 CARBON 2 2K 5 1 4W F R934 1 249 421 11 CARBON 2 2K 5 1 4W F R935 1 249 421 11 CARBON 2 2K 5 1 4W F R936 1 249 421 11 CARBON 2 2K 5 1 4W F R937 1 249 429 11 CARBON 10K 5 1 4W R938 1 247 885 00 CARBON 180K 5 1 4W R940 1 249 429 11 CARBON 10K 5 1 4W R941 1 249 429 11 CARBON 10K 5 ...

Страница 45: ...EAKER MISCELLANEOUS 3 1 773 125 11 WIRE FLAT TYPE 19 CORE 153 1 233 546 32 ENCAPSULATED COMPONENT AM FM TUNER 160 1 777 071 21 CORD POWER EA HK MY SP 160 1 782 315 11 CORD POWER IA 161 1 569 007 11 ADAPTOR CONVERSION 2P IA 161 1 569 008 21 ADAPTOR CONVERSION 2P EA MY SP 161 1 770 019 11 ADAPTOR CONVERSION PLUG 3P HK IC504 8 719 070 85 IC KU381 4 M891 A 4660 926 A MOTOR CDM ASSY M901 1 763 372 11 F...

Страница 46: ...46 STR VX500 Sony Corporation Home Audio Company 9 929 004 11 99H16091 1D Printed in Japan 1999 8 Published by Quality Assurance Dept ...

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