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Toshiba 32AF41 Service Manual
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Toshiba 32AF41 Service Manual

Toshiba 32AF41 Service Manual

Color television
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See also: Owner's Manual
FILE NO. 020-200106

SERVICE MANUAL

COLOR TELEVISION
N1F Chassis
32AF41
(TAC0116)
PUBLISHED IN JAPAN, Jun., 2001 So

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Summary of Contents for Toshiba 32AF41

  • Page 1: Service Manual

    FILE NO. 020-200106 SERVICE MANUAL COLOR TELEVISION N1F Chassis 32AF41 (TAC0116) PUBLISHED IN JAPAN, Jun., 2001 So...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ............................... 3 SET-UP ADJUSTMENT ..............................4 SERVICE MODE ................................8 DESIGN MODE ................................11 ELECTRICAL ADJUSTMENT ............................12 CIRCUIT CHECKS ................................ 16 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ............................. 17 LOCATION OF CONTROLS ............................

  • Page 3: Chapter 1 General Adjustments

    CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazard- 2. This receiver is equipped with a Fail Safe (FS) circuit which ous X-RAY RADIATION.

  • Page 4: Set-Up Adjustment

    WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. SET-UP ADJUSTMENT (FOR 13”, 14”, 19”, 20”) I The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1.
  • Page 5 I CIRCUMFERENCE CONVERGENCE ADJUSTMENT CONVERGENCE ADJUSTMENTS NOTE: Before attempting any convergence adjustments, the 1. Loosen the clamping screw of deflection yoke slightly to receiver should be operated for at least fifteen min- allow the yoke to tilt. utes. 2. Temporarily put a wedge as shown in figure 1. (Do not remove cover paper on adhesive part of the wedge.) I CENTER CONVERGENCE ADJUSTMENT 3.
  • Page 6 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. (FOR 35”, 36”) I The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1.
  • Page 7 CONVERGENCE ADJUSTMENTS 4-POLE NOTE: Before attempting any convergence adjustments, MAGNETS the receiver should be operated for at least fifteen 6-POLE minutes. MAGNETS I CENTER CONVERGENCE ADJUSTMENT 1. Display built-in cross-dot pattern using the TEST SIG- NAL SELECTION function. 2. Adjust the BRIGHTNESS and CONTRAST Controls for well defined pattern.

  • Page 8: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press MUTE button once 2) Press MUTE button 3) While pressing the MUTE button, on Remote Control. again to keep pressing. press MENU button on TV set. MUTE (Service mode display) 2. DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on TV.
  • Page 9 4. SELECTING THE ADJUSTING ITEMS 1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2. (t button for reverse order) Refer to table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 17) 5.
  • Page 10 8. SELF DIAGNOSTIC FUNCTION 1) Press “9” button on Remote Control during display of adjustment menu in the service mode. The diagnosis will begin to check if interface among IC’s are executed properly. 2) During diagnosis, the following displays are shown. SELF CHECK NO.

  • Page 11: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 1) Select the Service mode. 2) While pressing RECALL button on 3) Press MENU button on TV. Remote and press MENU button on TV. Item Press Data Press (Design mode) (Adjustment mode) When QA02 is initialized, items “OPT0” and “OPT1” of DESIGN MODE are set to the data of the representative model of this chassis family.

  • Page 12: Electrical Adjustment

    ELECTRICAL ADJUSTMENT ITEM ADJUSTMENT PROCEDURE FOCUS VR ADJ 1. Enter the service mode, then select any register item. 2. Press the TV/VIDEO button on the Remote until the black cross-bar pattern ap- pears on the screen. 3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture screen.
  • Page 13 ITEM ADJUSTMENT PROCEDURE HORIZONTAL POSITION 1. Call up the adjustment mode display, then select the item HPOS or VPOS. (HPOS) 2. Press the TV/VIDEO button on Remote until the VERTICAL POSITION white cross-bar or black cross-bar pattern appears (VPOS) on the screen. 3.
  • Page 14 MTS ADJUSTMENT (FOR N1F CHASSIS) ITEM INPUT SIGNAL ADJUSTMENT PROCEDURE STEREO VCO • No signal 1. Display item STVC, and connect pin 9 of (STVC) H002 to ground. 2. Connect frequency counter to pin 12 of H002. 3. Change data by Volume s/t buttons so that the reading of counter becomes value as close as 4fH (62.936kHz).
  • Page 15 MTS ADJUSTMENT (FOR N0ES CHASSIS) ITEM INPUT SIGNAL ADJUSTMENT PROCEDURE • 1kHz 30% mod. → ANT ATTENUATOR 1. Connect rms meter to pin 34 of QG01. (ATT) terminal 2. Display item ATT on screen. 3. Change data by VOLUME s/t buttons so that the reading of meter becomes value as close as 137mVrms.

  • Page 16: Circuit Checks

    CIRCUIT CHECKS HIGH VOLTAGE CHECK Troubleshooting Guide for Fail Safe Circuit CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on this chassis. Checking should be done following the steps Check that the set returns to normal operation when pin 12 below. of Z801(or emitter of Q472) is grounded with jumper wire.

  • Page 17: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 32" HIGH VOLTAGE AT ZERO BEAM: 31.0kV MAX HIGH VOLTAGE: 32.4 kV Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Name of adjustment Preset Item Name of adjustment Preset 32"...

  • Page 18: Location Of Controls

    LOCATION OF CONTROLS Front view Rear view DEMO MENU TV/VIDEO VOLUME CHANNEL VIDEO-3 IN AUDIO VIDEO L/MONO INSIDE DOOR POWER VOLUME T / S Remote sensor MENU VIDEO/AUDIO DEMO CHANNEL t/ s TV/VIDEO terminals POWER ANT (75Ω) Antenna/Cable terminals DVD IN S-VIDEO COLOR STREAM...
  • Page 19 Remote Control MUTE POWER RECALL MUTE RECALL POWER Channel Number CH RTN CH RTN MENU MENU/ CHANNEL s/t ENTER Menu s/t VOLUME T/S Menu T/S TV/CABLE/VCR switch CABLE EXIT Set to “TV” to control the TV. EXIT FAV CH TV/VIDEO TV/VIDEO FAV CH s button TV/VCR...

  • Page 20: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY The channel memory is the list of TV channel numbers your TV will stop on when you press the CHANNEL s or t button. First, use the TV/CABLE and CH PROGRAM functions to preset all active channels in your area automatically. If necessary, arrange the preset channels with the ADD/ERASE functions so that you can tune into only desired channels.

  • Page 21: Circuit Block Diagram

    – 21 –...

  • Page 22: Chassis And Cabinet Replacement Parts List

    • The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model number and Description. • The PC board assembly with mark is no longer available after the end of the production. Model : 32AF41 Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 23 Location Part No. Description C312 24503039 CAPACITOR, MT PLA CAP 63V 0.068UF J C313 24082057 CAPACITOR, PLASTIC FILM CF922 M 100V 220000PF J C314 24793101 CAPACITOR, ELECTROLYTIC CE04G 10V 100UF M C316 24212222 CAPACITOR, CERAMIC DISK CK45 B 50V 2200PF K C317 24214471 CAPACITOR, CERAMIC DISK CK45 B 500V 470PF K...
  • Page 24 Location Part No. Description C449 24666102 CAPACITOR, ELECTROLYTIC CE04Q 16V 1000UF M 3A C450 24829473 CAPACITOR, PLASTIC FILM CQ92 T 400V 47000PF J C453 24092344 CAPACITOR, CERAMIC DISC CK45R 2KV 820PF K C457 24591222 CAPACITOR, PLASTIC FILM CQ921 M 50V 2200PF J C461 24082923 CAPACITOR, PLASTIC FILM CF92 T 315V 0.51UF J...
  • Page 25 Location Part No. Description C717 24214472 CAPACITOR, CERAMIC DISK CK45 B 500V 4700PF K C718 24794470 CAPACITOR, ELECTORLYTIC CE04G 16V 47UF M C719 24435560 CAPACITOR, PCERA CAP SL 500V 560J C720 24709100 CAPACITOR, ELECTROLYTIC CE04G 200V 10UF M C721 24794470 CAPACITOR, ELECTORLYTIC CE04G 16V 47UF M C726 24212102...
  • Page 26 Location Part No. Description C972 24794470 CAPACITOR, ELECTORLYTIC CE04G 16V 47UF M C3319 24591103 CAPACITOR, PLASTIC FILM CQ921 M 50V 0.01MF J C3322 24617912 CAPACITOR, ELECTROLYTIC CE04CH 50V 2.2UF K 3A LI C3323 24503049 CAPACITOR, MT PLA CAP 63V 0.47UF J C3325 24591203 CAPACITOR, PLASTIC FILM CQ921 M 50V 0.020MF J...
  • Page 27 Location Part No. Description CG32 24591102 CAPACITOR, PLASTIC FILM CQ921 M 50V 1000PF J CG33 24206108 CAPACITOR, ELECTROLYTIC CE04WS 50V 0.1UF M 7L 3A CG37 24205479 CAPACITOR, ELECTROLYTIC CE04WS 35V 4.7UF M 7L 3A CG37 24206229 CAPACIT0R, ELECTROLYTIC CE04WS 50V 2.2UF M 7L 3A CG38 24205479 CAPACITOR, ELECTROLYTIC CE04WS 35V 4.7UF M 7L 3A...
  • Page 28 Location Part No. Description CS115 24206010 CAPACITOR, ELECTROLYTIC CE04WS 50V 1.0UF M 7L 3A CS116 24206010 CAPACITOR, ELECTROLYTIC CE04WS 50V 1.0UF M 7L 3A CS118 24794470 CAPACITOR, ELECTORLYTIC CE04G 16V 47UF M CS120 24206010 CAPACITOR, ELECTROLYTIC CE04WS 50V 1.0UF M 7L 3A CS625 24797479 CAPACITOR, ELECTROLYTIC CE04G 50V 4.7UF M...
  • Page 29 Location Part No. Description CZ41 24105470 CAPACITOR, CERAMIC CHIP CC73CH 50V 47PF J CZ42 24105470 CAPACITOR, CERAMIC CHIP CC73CH 50V 47PF J CZ45 24105100 CAPACITOR, CERAMIC CHIP CC73CH 50V 10PF D RESISTORS R101 24382223 RESISTOR, OXIDE FILM 1W 22K J R201 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J...
  • Page 30 Location Part No. Description R321 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J R322 24366394 RESISTOR, CARBON FILM, 1/6W 390K OHM J R323 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J R324 24000638 RESISTOR, METAL FILM 1/4W 16K F R324 24366473 RESISTOR, CARBON FILM, 1/6W 47K OHM J R326...
  • Page 31 Location Part No. Description R406 24366104 RESISTOR, CARBON FILM SB 1/6W 100K J R407 24366103 RESISTOR, CARBON FILM, 1/6W 10K OHM J R407 24366103 RESISTOR, CARBON FILM, 1/6W 10K OHM J R408 24366472 RESISTOR, CARBON FILM, 1/6W 4.7K OHM J R409 24376153 RESISTOR, CARBON RES B 1/2W 153J...
  • Page 32 Location Part No. Description R502 24366101 RESISTOR, CARBON FILM, 1/6W 100 OHM J R503 24366101 RESISTOR, CARBON FILM, 1/6W 100 OHM J R508 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J R509 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J R510 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J...
  • Page 33 Location Part No. Description R736 24366620 RESISTOR, CARBON FILM, 1/6W 62 OHM J R737 24366152 RESISTOR, CARBON FILM, 1/6W 1.5K OHM J R738 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J R739 24366152 RESISTOR, CARBON FILM, 1/6W 1.5K OHM J R740 24366620 RESISTOR, CARBON FILM, 1/6W 62 OHM J...
  • Page 34 Location Part No. Description R924 24366820 RESISTOR, CARBON,FILM, 1/6W 82 OHM J R925 24366471 RES1STOR, CARBON F1LM, 1/6W 470 OHM J R926 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J R928 24366561 RESISTOR, CARBON FILM, 1/6W 560 OHM J R929 24366101 RESISTOR, CARBON FILM, 1/6W 100 OHM J R930...
  • Page 35 Location Part No. Description R991 24367681 RESISTOR, CARBON RES G 1/6W 681G R992 24366150 RESISTOR, CARBON FILM, 1/6W 15 OHM J R993 24366471 RES1STOR, CARBON F1LM, 1/6W 470 OHM J R994 24366392 RESISTOR, CARBON FILM SB 1/6W 3.9K J R997 24366272 RESISTOR, CARBON FILM, 1/6W 2.7K OHM J R998...
  • Page 36 Location Part No. Description R4764 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J R4764 24366104 RESISTOR, CARBON FILM SB 1/6W 100K J R4765 24366221 RESISTOR, CARBON FILM, 1/6W 220 OHM J R4766 24366202 RESISTOR, CARBON FILM, 1/6W 2K OHM J R4767 24003984 RESISTOR, METAL RES S 1/4W 102J...
  • Page 37 Location Part No. Description RA77 24366153 RESISTOR, CARBON FILM, 1/6W 15K OHM J RA78 24366273 RESISTOR, CARBON FILM, 1/6W 27K OHM J RA99 24366223 RESISTOR, CARBON FILM, 1/6W 22K OHM J RA201 24366472 RESISTOR, CARBON FILM, 1/6W 4.7K OHM J RB01 24366271 RESISTOR, CARBON FILM, 1/6W 270 OHM J...
  • Page 38 Location Part No. Description RG64 24366222 RESISTOR, CARBON FILM, 1/6W 2.2K OHM J RG66 24366562 RESISTOR, CARBON FILM SB 1/6W 5.6K J RG67 24366822 RESISTOR, CARBON FILM, 1/6W 8.2K OHM J RG68 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J RG68 24366152 RESISTOR, CARBON FILM, 1/6W 1.5K OHM J...
  • Page 39 Location Part No. Description RS69 24366223 RESISTOR, CARBON FILM, 1/6W 22K OHM J RS70 24366104 RESISTOR, CARBON FILM SB 1/6W 100K J RS71 24366104 RESISTOR, CARBON FILM SB 1/6W 100K J RS101 24366123 RESISTOR, CARBON FILM, 1/6W 12K OHM J RS101 24366332 RES1STOR, CARBON F1LM, 1/6 3.3K OHM J...
  • Page 40 Location Part No. Description RY12 24366102 RESISTOR, CARBON FILM, 1/6W 1K OHM J RZ01 24872102 RESISTOR, CHIP, METAL FILM, 1/16W 1K OHM J RZ02 24872102 RESISTOR, CHIP, METAL FILM, 1/16W 1K OHM J RZ03 24872332 RESISTOR, METAL FILM CHIP 1/16W 3R3K J RZ04 24872122 RESISTOR, CHIP, METAL FILM, 1/16W 1.2K OHM J...
  • Page 41 Location Part No. Description L903 23289101 COIL, PEAKING, TRF4101AF L904 23289101 COIL, PEAKING, TRF4101AF L905 23289390 COIL, PEAKING, TRF4390AF L906 23289390 COIL, PEAKING, TRF4390AF L907 23289390 COIL, PEAKING, TRF4390AF L908 23289100 COIL, PEAKING, TRF4100AF L910 23237991 COIL, PEAKING, TRF4479AC LA01 23289100 COIL, PEAKING, TRF4100AF LA28...
  • Page 42 Location Part No. Description Q404 23314955 TRANSITOR, 2SD2553(FA) Q404B 72471082 SCREW, 3X10MM Q421 23314707 TRANSISTOR, 2SD1944, H Q421B 23035308 SCREW, 3X8MM, TAPPING Q462 23114530 TRANSISTOR, 2SA933S Q463 23314938 TRANSISTOR, 2SD2493(P) Q463B 72471082 SCREW, 3X10MM Q465 23114433 TRANSISTOR, 2SC1815-Y Q465 23114530 TRANSISTOR, 2SA933S Q470 23114528...
  • Page 43 Location Part No. Description Q907 23114530 TRANSISTOR, 2SA933S Q908 23114429 TRANSISITOR, 2SC2120-Y(TE Q911 23114528 TRANSISTOR, 2SC1740S Q912 23114530 TRANSISTOR, 2SA933S Q913 23114530 TRANSISTOR, 2SA933S Q914 23114552 TRANSISTOR, 2SC1685-Q, TH Q920 23114528 TRANSISTOR, 2SC1740S Q921 23114528 TRANSISTOR, 2SC1740S Q922 23114528 TRANSISTOR, 2SC1740S Q923 23114528 TRANSISTOR, 2SC1740S...
  • Page 44 Location Part No. Description QZ03 A6541132 TRANSISTOR, 2SA1162 -(Y) QZ04 A6541132 TRANSISTOR, 2SA1162 -(Y) QZ05 23114475 TRANSISTOR, 2SC2712. Y QZ06 A6541132 TRANSISTOR, 2SA1162 -(Y) QZ07 A6541132 TRANSISTOR, 2SA1162 -(Y) QZ08 23114475 TRANSISTOR, 2SC2712. Y D101 23316755 DIODE, ZENER VZ30.90-32.50 DO34 MTZ J 33C D112 23316678 DIODE, ZENER, MTZJ6.8B...
  • Page 45 Location Part No. Description D473 23118859 DIODE, 1SS133 D480 23316727 DIODE, ZENER VZ14.80-15.57 DO34 MTZ J 16A D611 23118859 DIODE, 1SS133 D612 23118859 DIODE, 1SS133 D613 23118859 DIODE, 1SS133 D614 23118859 DIODE, 1SS133 D704 23118859 DIODE, 1SS133 D705 23118859 DIODE, 1SS133 D715 23118859 DIODE, 1SS133...
  • Page 46 Location Part No. Description DE50 23358501 LED, LAMP RED IV=61-240MCD SCL-003URC5FXFGH DJ01 23316817 DIODE,1SS120-7 DJ02 23118504 DIODE, RD15ES B3 DS106 23316660 DIODE, ZENER, MTZ J 3.9A DV03 23118518 DIODE, ZENER, RD9.1ES DV05 23118518 DIODE, ZENER, RD9.1ES DV13 23118518 DIODE, ZENER, RD9.1ES DV15 23118518 DIODE, ZENER, RD9.1ES...
  • Page 47 Location Part No. Description G317 23118859 DIODE, 1SS133 G380 24946226 RESISTOR, CARBON CONPOSITI0N, 1/2W 22M OHM K G403 24946223 RESISTOR, CARBON COMPOSITION GF 1/2W 22K K G405 24214472 CAPACITOR, CERAMIC DISK CK45 B 500V 4700PF K G463 23103880 COIL, CHOKE, TEM2011Y G808 23248227 COIL, CHOKE, TLN3481AD...
  • Page 48 U905 23786166 PC BOARD ASSY, PW UNIT 3LINE B PB9398A UA01 23786539 PC BOARD ASSY, PCB CNT1 PD0150B UA02 23786540 PC BOARD ASSY, PCB CNT2 PD151 32AF41 PICTURE TUBE V901 23312930 PICTURE TUBE, ITC32VRF LH0.97 A80ERF031X13 TUNER H001 23321410 TUNER, TIF 181CH IIC PH SAIKO EL969L...

  • Page 49: Pc Boards Bottom View

    SIGNAL BOARD PD0155 BOTTOM (FOIL) SIDE – 49 – – 50 –...
  • Page 50 POWER/DEF BOARD PD0154 BOTTOM (FOIL) SIDE – 51 – – 52 –...
  • Page 51 CONTROL-1 BOARD PD0150 BOTTOM (FOIL) SIDE – 53 –...
  • Page 52 CONTROL-2 BOARD PD0151 BOTTOM (FOIL) SIDE – 54 –...
  • Page 53 CRT DRIVE BOARD PB9973 BOTTOM (FOIL) SIDE – 55 –...
  • Page 54 3L DIGI-COMB BOARD PB9398 BOTTOM (FOIL) SIDE – 56 –...

  • Page 55: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752GTM 2SC752 2SA1788 (old) 2SD1763A 2SA562TM 2SC2482 2SC5243 2SC1569 2SA1015 2SC2655 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 2SD1554 ON4409 RN2203 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SD2553 RN1204 2SC5143 RN2204 RN1205 RN1202 RN1201 –...
  • Page 56 MEMO ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................– 58 –...
  • Page 57 MEMO ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................– 59 –...
  • Page 58 MEMO ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................– 60 –...

  • Page 59: Specifications

    SPECIFICATIONS TELEVISION SYSTEM NTSC standard CHANNEL COVERAGE VHF: 2 through 13 UHF: 14 through 69 Cable TV: mid band (A-8 through A-1, A through I) super band (J through W) hyper band (AA through ZZ, AAA, BBB) ultra band (65 through 94, 100 through 125) POWER SOURCE 120V AC, 60Hz AUDIO POWER...
  • Page 60 TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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