NAD M55 Service Manual

NAD M55 Service Manual

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© NAD 2010
M55
NAD ELECTRONICS INTERNATIONAL
DIGITAL DISC PLAYER
TORONTO

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Summary of Contents for NAD M55

  • Page 1 © NAD 2010 NAD ELECTRONICS INTERNATIONAL DIGITAL DISC PLAYER TORONTO...
  • Page 2 CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..CABINET CHASSIS NEW LOADER SECTION 3 ..ELECTRICAL SECTION 4 ..MECHANISM (ORIGINAL LOADER) SECTION 5 ..REPLACEMENT PARTS LIST...
  • Page 3: Table Of Contents

    SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ......1-3 SERVICING PRECAUTIONS ....................1-4 • General Servicing Precautions • Insulation Checking Prodedure • Electrostatically Sensitive Devices SPECIFICATIONS ........................1-5...
  • Page 4: Product Safety Servicing Guidelines For Video Products

    PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY, SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER- TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY SONNEL COVER THE SUBJECT OF X-RADIATION.
  • Page 5: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION : Before servicing the DVD covered by this service Electrostatically Sensitive (ES) Devices data and its supplements and addends, read and follow the Some semiconductor (solid state) devices can be damaged SAFETY PRECAUTIONS. NOTE : if unforeseen circum- easily by static electricity.
  • Page 6 IMPORTANT M55 & M5 MECHANISM INSTALLATION NOTES INSTRUCTION FOR HANDLING 02-55598-00 FOR M55 & M5 AS WELL AS OPTICAL BLOCK Electrostatic breakdown of the laser diode in the optical system block may occur due to a poten- tial difference caused by electrostatic charge accumulated on clothing, human body, etc. A ground must be provided as follows to prevent any electrostatic charge during unpacking or repair work.
  • Page 7: Specifications

    SPECIFICATIONS • GENERAL Power requirements: AC 100-240 V , 50/60 Hz Power consumption: Dimensions (Approx.): 435 x 100 x 300 mm (W x H x D) without foot Weight (Approx.): 8.6 kg Operating temperature: 5 °C to 35 °C (41 °F to 95 °F) Operating humidity: 5 % to 90 % •...
  • Page 8 SECTION 2 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS ...................... 2-2 1. Cabinet and Main Frame Section ................2-2,3 2. Exploded view parts list ....................2-4 3. New Loader, Rail Assembly & Loader Drive Current Change ........2-5-7 4. New FFC Bend Angle without Clamp ................2-8 5.
  • Page 9 EXPLODED VIEWS 1.Cabinet and main frame section...
  • Page 10 2.Exploded view parts list REF.NO. PART NO. DESCRIPTION Qty. REF.NO. PART NO. DESCRIPTION Qty. C002 01-55501-20 Decode Board(C Version) R003 11-01101-03 Rocker Switch 01-55501-10 Decode Board(AH Version) C003 01-55505-00 RS232 Board New PN 67-051002-1 01-55502-10 Video Board(AH Version) T002 86-018002-1 Expanded Rubber C005 01-55506-20 Scart Board(C Version)
  • Page 11 New XY-A33 Loader and Rail A ssembly, Part Number 02-55598-00 for the M55 (may include either J36-00313-00 or J37-00313-00 traverse) Screw 4PCS New XY-A33 Loader and Rail Assembly, Part Number 02-55598-00 (P/N:61-023208-0) (complement of parts) Quantity Description Part Number Comments...
  • Page 12 DECODE BOARD When installing the kit 02-55598-00 change R477 and R478 to 4.7Ohms. This is to slow down the motion of the DVD tray. R498 R497 R466 R465 R477 C243 C240 R478 R496 R495 R494 R486 R485 C462 R491 C498 C497 C453 R431...
  • Page 13 New and Old FFC Bend Angle M55 Remove and Discard Line Clamp & FFC & Standoffs For original Loader (production loader) use 90° angle Use double sided tape to affix the FFC to the chassis floor FFC angle for the new XY-A33 Replacement Loader Do not use Line clamp and standoffs;...
  • Page 14 3.Packing accessory section AC Cord Accessory Box Batteries REMOCON Audio and Video Cable Polyfoam(up) Polyfoam(down) Gift Box Shipping Box...
  • Page 15 SECTION 3 ELECTRICAL C ONTENTS ELECTRICAL TROUBLESHOOTING GUIDE ……………………………………..3-3 1. Power check flow…………………………………………………………………………3-3 2. System operation flow……………………………………………………………………3-4 3. Test & debug flow…………………………………………………………………………3-5 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGING …….…3-11 1. System 27MHz clock,reset,flash R/W signal………………………………………….3-11 2. SDRAM clock……………………………………………………………………………..3-12 3.
  • Page 16 12. FIL2300 circuit diagram…………………………………………………………………3-44 13. K-VIDEO circuit diagram………………………………………………………………..3-46 14. DVI circuit diagram………………………………………………………………………3-48 CIRCUIT VOLTAGE CHARGE ………………………………….…………………3-49 PRINT CIRCUIT BOARD DIAGRAM …………………………………………………3-57 1. DECODE P.C.BOARD…………………………………………………………………...3-57 2. KEY P.C.BOARD…………………………………………………………………………3-59 3. SMPS P.C.BOARD……………………………………………………………………….3-61 4. VIDEO P.C.BOARD………………………………………………………………………3-62 5. RS232 P.C.BOARD………………………………………………………………………3-64 6. SCART P.C.BOARD……………………………………………………………………...3-65...
  • Page 17: Electrical Troubleshooting Guide

    ELECTRICAL TROUBLESHOOTING GUIDE 1. Power check flow No VF+ No 5VS Is 5VD section working? Is 5VD section working? Is 5VD present at input Check D910 No 5VD of U911? Replace D910 Check FH900 Replace U911. Is there a AC voltage at Replace RT900.
  • Page 18: System Operation Flow

    2. System operation flow Power On 1. ES6168 initializes SERVO & the other DSPs Show LOGO Tray Closed? Tray Close to Closed position SLED at Inner Side ? SLED Moves to Inner Positi on 1. Judge whether have disc and disc type 2.
  • Page 19: Test & Debug Flow

    3. Test & debug flow TEST Check the AC Voltage Replace power PCBA or Power PCBA(110V or 220V) AC transformer. Switch on the Power PCBA Is the DC Voltage Repair or Replace Power PCBA outputs OK? (5V,3.3V,9V,12V,15V) Make sure the main PCBA don't short on VCCs and switch it on.
  • Page 20 RESET or Power On. Check connection lines between FLASH Flash Memory operates & ES6168 and the FLASH access time Show LOGO? properly? whether is suitable or not. Check connection lines between SDRAM works properly? SDRAM & ES6168 and the SDRAM is damaged.
  • Page 21 Does Motor Driver the SLED move Check the connection line of to inner side when it is at XFTSMUTE XFTSMUTE signal. outter position? Pin is High? Is SLED DC Level lower Check the related circuit of than 1.65V? SLED. SL+ and SL- output Check the amp circuit on motor properly? driver.
  • Page 22 Check the laser power circuit Laser turns on when DVDLD or CDLD on CXD1881 and connecting to reading disc? output properly? power transistor. Collector voltage of Check the related circuit on power transistor is OK? laser power transistor Check cable connection between transistor ouput and pick-up head.
  • Page 23 Proper signals on Check connections between Focus ON OK? A,B,C,D of CXD1881 CXD1881 and pick-up head. Check the FSCON connection on Check FEO signal CXD1885Q and motor driver. on CXD1881 Check FSCON signal on CXD1885Q Check the related Normal TEO Signal on Track On OK? circuit on CXD1881 CXD1881?
  • Page 24 Normal Audio output Audio DAC received Check connection between ES6168 when disc playback? correct data stream? & DDX8001 & Audio DAC. Normal Audio DAC Check the related out? circuit of Audio DAC. Check Audio filter,amplify,mute circuit. Communications between Normal IR.VFD & Front Check communication lines on IR.VFD Front panel l k ey &...
  • Page 25: Details And Waveforms On System Test And Debuging

    DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1.SYSTEM 27MHz CLOCK, RESET, FLASH R/W SIGNAL. 1) ES6168F main clock is at 27MHz(pin49) FIG 1-1 2) ES6168F( pin24) reset is low active. Ch1 VCC CH2 RESET FI1-2 3-11...
  • Page 26: Sdram Clock

    2. SDRAM CLOCK FIG 2-1 3. TRAY OPEN/CLOSE SIGNAL CH1 EJ- CH2 EJ+ FIG 3-1 3-12...
  • Page 27: Sled Control Related Signal(No Disc Control)

    CH1 EJ- CH2 EJ+ FIG 3-2 4. SLED CONTROL RELATED SIGNAL(NO DISC CONDITION) SLED CONTROL FIG 4-1 CH1 SL+ CH2 SL- FIG 4-2 3-13...
  • Page 28: Lens Control Related Signal(No Disc Control)

    5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) LDON FIG 5-1 CH1 DVD_LD CH2 CD_LD FIG 5-2 3-14...
  • Page 29: Focus Control Related Signal(No Disc Control)

    6. FOCUS CONTROL RELATED SIGNAL(NO DISC CONDITION) FSCON FIG 6-1 CH1 FOCUS- CH2 FOCUS+ FIG 6-2 3-15...
  • Page 30: Spindle Control Waveform

    7. SPINDLE CONTROL WAVEFORM CH1 SPWM2 CH2 SPWM1 FIG 7-1(DVD) CH1 SPWM2 CH2 SPWM1 FIG 7-2(CD) 3-16...
  • Page 31: Focus On Waveform

    8. FOCUS ON WAVEFORM(FSCON) FIG 8-1(CD) FIG 8-2 (DVD) 3-17...
  • Page 32: Es6168F Audio Optical And Coaxialoutput(Spdif)

    9. ES6168F AUDIO OPTICALAND COAXIALOUTPUT (SPDIF) FIG 9-1 10. ES6168F VIDEO OUTPUT WAVEFORM(10 STEP) 1) CVBS FIG 10-1 2) COMPOSITE Y FIG 10-2(480I) 3-18...
  • Page 33 FIG 10-2(480P) FIG 10-3(720P) FIG 10-4(1080I) 3-19...
  • Page 34: Rf Waveform

    11.RF WAVEFORM FIG11-1(CD) FIG11-1(DVD) 12.HDMI CH1 HSYN CH2 VSYN FIG12-1(480I) 3-20...
  • Page 35 CH1 HSYN CH2 VSYN FIG12-1(480P) CH1 HSYN CH2 VSYN FIG12-1(720P) CH1 HSYN CH2 VSYN FIG12-2(1080I) 3-21...
  • Page 36: Audio Output(1Khz Odb)

    13. ES6168F AUDIO OUTPUT TO AUDIO DAC CHI1 BITCLOCK CH2 LRCLOCK FIG 31-1 14. AUDIO OUTPUT (1KHZ 0DB) FIG 14-1 3-22...
  • Page 37: Block Diagrams

    Block Diagram 1.OVERALL Block Diagram P860 P507 P504 RS232 JACK JACK JACK SCART JACK HDMI 3-23...
  • Page 38: Power(Smps)Block Diagram

    2.POWER(SMPS)BLOCK DIAGRAM TRANS SWITCHING IC RECTIFIER LINE FILTER 3-24...
  • Page 39: Servo Block Diagram

    3.SERVO Block Diagram 3-25...
  • Page 40: Mpeg & Memory Block Diagram

    4.MPEG & MEMORY Block Diagram 3-26...
  • Page 41: Video & Audio Block Diagram

    5.VIDEO & AUDIO Block Diagram 3-27...
  • Page 42: Genesis.scart & Dvi Block Diagram

    6. GENSIS.SCART & DVI BLOCK DIAGRAM P860 P507 P504 SCART JACK JACK HDMI JACK FROM DDX8001 3-28...
  • Page 43: Circuit Diagrams

    CIRCUIT DIAGRAMS 1.POWER(SMPS) CIRCUIT DIAGRAM 3-29...
  • Page 44: System Circuit Diagram

    2.SYSTERM CIRCUIT DIAGRAM VCC33 VCC33 VCC33 VCC33 VCC33 MCLK-SIL VCC20 VCC33 H_VDT7 MCLK-DSD H_VDT6 VOUT BYTE H_VDT5 VOUT H_VDT4 DQ15/A_1 H_VDT3 VCC33 H_VDT2 TDM-DATA DQ14 H_VDT1 TDM-FS H_VDT0 TDM-CLK DQ13 DWRQ# H_HDRQ MCLK-DSD DRD# H_XHAC DQ12 DIRQ H_VERR VCC33 74LVC2G241 H_XSHD VCC33P DWR#...
  • Page 45: Dsp Circuit Diagram

    3.DSP CIRCUIT DIAGRAM To RF Block H_CDDAT H_CDCLK H_CDFRM AMPSEN H_CDERR AMPSDT AMPSCK H_DRVRDY DFCT H_DRVCLK MIRR H_DRVRX H_DRVTX RFAC H_DRVRST H_DRVIRQ H_MUTE H_DVD/SACD AGND H_SMUTE RST# H_MSREADY DGND H_MSDATAO AGND H_MSDATAI H_MSCK AMPMNT H_XMSLAT CD/XDVD CDDAT VC16 LDON CDCLK A3.3V A1.8V CDFRM...
  • Page 46: H-Power Driver Circuit Diagram

    4.H-POWER & DRIVER CIRCUIT DIAGRAM *Note; R477 and R478 are 4.7Ohm when using new XY-A33 Loader. 3-34...
  • Page 47: Rf Circuit Diagram

    5.RF CIRCUIT DIAGRAM 3-35...
  • Page 48: Dsd Circuit Diagram

    6.DSD CIRCUIT DIAGRAM R421 D2.5V RFAC D3.3V GND_RF DGND D3.3V Vcc0 Vss1 DQ16 DQ15 VssQ0 VssQ3 DQ14 DQ13 VccQ0 VccQ3 DQ12 TESTI DQ11 TESTO VssQ1 VssQ2 VDIO(3.3V) VSIO(GND) DQ10 TESTO TESTO VccQ1 VccQ2 VDC(2.5V) LDQM TESTO UDQM VSIO(GND) TESTO DCLK VSC(GND) DCKE TESTO...
  • Page 49: Audio Circuit Diagram

    7.AUDIO CIRCUIT DIAGRAM +3.3VA +5.5VA +12V +3.3VA MCLK-DSD -12V MCLK-DSD GNDA MCLK-O GNDA GNDA GNDA GNDA GNDA GNDA RST# H_DCLK H_DBCK +5.5VA GNDA H_DSAR H_DSAL SPDIF H_DSAML H_DSMR DSD3 VCOM2 DSD4 VCC7 H_DSALS DSD5 VCC6 H_DSARS DSD6 AGND5 B108 added H_DSAC DSD7 VCC5...
  • Page 50: Connect Circuit Diagram

    8.CONNECT CIRCUIT DIAGRAM 3-40...
  • Page 51: Timer Circuit Diagram

    9.TIMER CIRCUIT DIAGRAM 3-41...
  • Page 52: Rs232 Circuit Diagram

    10.RS232 CIRCUIT DIAGRAM 3-42...
  • Page 53: Scart Circuit Diagram

    11.SCART CIRCUIT DIAGRAM 3-43...
  • Page 54: Fil2300 Circuit Diagram

    12.FIL2300 CIRCUIT DIAGRAM DAC3.3V B572 0.1UF R740 R738 B646 B645 RED-OUT 27PF 27PF P507 DAC-ROUT 560R 560R VGA(DB15) R732 L536 L539 R728 C646 10u/6.3V R524 100K GNDV DAC-GOUT DAC-ROUT R717 1uH 5% 1uH 5% VSYNC 75R 1% Y601 Q607 R718 R735 HSYNC DAC-BOUT...
  • Page 55: K-Video Circuit Diagram

    13.K-VIDEO CIRCUIT DIAGRAM R662 R664 C667 56PF P502A S+RCA 560R 560R C648 FB528 FERB 470uF/10V C-SVIDEO L522 5.6UH Q601 R621 BAV99 R675 75R C618 C661 C561 R614 300R C598 20PF 56PF 100PF 300R C654 0.1U 0.1U 3.3VD DVCCV AVCCV -5V_VID U516 -5V_VID AD8092...
  • Page 56: Dvi Circuit Diagram

    14.DVI CIRCUIT DIAGRAM 3-48...
  • Page 57: Circuit Voltage Charge

    CIRCUIT VOLTAGE CHART 3-49 3-50...
  • Page 58 3-52 3-51...
  • Page 59 3-53 3-54...
  • Page 60 3-55 3-56...
  • Page 61: Decode P.c.board

    1.DECODE P.C.BOARD C215 C213 C214 IC26 C451 CN18 C489 R384 C490 R463 IC16 B107 B106 C492 IC15 R473 C450 R461 C482 R383 IC21 IC25 R382 C419 C493 Q44 Q43 C494 C420 C232 R421 CN19 B103 C423 C470 C422 B102 IC23 R490 R489 R385...
  • Page 62: Key P.c.board

    2.KEY P.C.BOARD TOP VIEW U800 C808 W806 W805 D800 J801 C803 U802 S814 S815 S800 HS4-M55_B008-VM1.0-FPP S812 DEC,01/2005 power enter left right BOTTOM VIEW U801 3-59 3-60...
  • Page 63: Smps P.c.board

    3.SMPS P.C.BOARD TOP VIEW L904 C966 C942 C961 R934 R933 R936 U908 R937R935 J901. L907 J900 U912 H901 C941 C958 C959 D909 U907 T900 C957 R953 L906 D915 C954 D900 C955 R965 T2A/250V FH900 D913 U910 R912 U911 D916 C933 R951 C934 R932...
  • Page 64: Video P.c.board

    4.VIDEO P.C.BOARD TOP VIEW U517 BOTTOM VIEW R636 C576 C578 C597 R664 R663 R662 R672 R661 C598 R671 B502 C606 C604 R713 C579 C591 C619 B584 L521 L522 L523 R624 B593 R623 R619 B580 RP546 B586 RP547 R749 RP545 RP544 C607 B578 R669...
  • Page 65: Rs232 P.c.board

    5.RS232 P.C.BOARD BOTTOM VIEW TOP VIEW 3-64...
  • Page 66: Scart P.c.board

    6.SCART P.C.BOARD BOTTOM VIEW TOP VIEW R871 R874 R864 R870 R873 R869 W862 R877 R868 W861 R866 R872 R867 R865 W860 3-65...
  • Page 67 Note new routing of the FFC without line clamp. Use double sided tape to secure the FFC to the chassis floor as shown below: 3-44 3-45...
  • Page 68 SECTION 4 MECHANISM (original type) Mechanism Assembly (36-55313-00) NLA Loader Clamp1 (optional) Loader Clamp2 (optional) (69-051003-0) (69-051004-0) Loader Gasket (79-051002-0) Loader WXD-8836B NS P New "Toothed" Loader Belt (79-051014-0) Laser Pick Up J37-00313-00 Rubber Damper Screw Original 5Pin Wire (P/N:14-55505-00) For original WXD-8836B Loader NOTE: Connector at the loader end is same side as Decoder end.
  • Page 69 SECTION 5 REPLACEMENT PARTS LIST MODEL DECODE BOARD C/BC VERSION P/N:01-55501-20 AH VERSION P/N:01-55501-10 Diode c t i c t i i f i t c t i 33-24001-00 Rectifier Diode 1N4001 DO-41 D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, 33-11200-11 Zener Diode 12V, 1/2W...
  • Page 70 t i c ± t i c ± C112, C113, C114, C115, C116, C117, C118, 26-68151-00 Ceramic Chip Capacitor 680pF, 50V, ±5%, NPO 0603 C119 26-10251-10 Ceramic Chip Capacitor 1nF, 50V, ±5%, NPO C476, C477, C478, C479, B24 0603 C120, C121, C122, C123, C124, C125, C126, 26-12251-10 Ceramic Chip Capacitor 1.2nF, 50V, ±5%, NPO...
  • Page 71 R372, R373, R374, R375, R376, R377, R378, 07-90151-00 Chip Resistor 150 , ±5% R379, R380, R381, R382, R383, R384, R385, 0603 R386, R387 07-91600-00 Chip Resistor ± 07-90221-00 Chip Resistor ± 07-90331-00 Chip Resistor ± 07-90471-00 Chip Resistor ± 07-95100-00 Chip Resistor ±...
  • Page 72 Crystal 1.8432M, FL=30PPM, CL=15pF, 04-11841-00 Crystal HC-49U l l i l l i .1 VIDEO BOARD C/BC VERSION P/N:01-55502-20 AH VERSION P/N:01-55502-10 Capacitor t i c ± t i c ± B631, B632, B633, B634, B635, B636, C660, 26-56051-00 Ceramic Chip Capacitor 56pF, 50V, ±5%, NPO 0603 C661, C662, C666, C667, C668...
  • Page 73 R642, R650, R667, R668, R684, R699, R702, 07-90472-00 Chip Resistor 4.7K , ±5% 0603 R706, R707, R711, R712, R719, R720, R770 07-90512-00 Chip Resistor 5.1K ± 07-90103-00 Chip Resistor ± 07-90104-00 Chip Resistor 100K ± 07-94750-00 Chip Resistor ± RP538, RP539, RP540, RP541, RP542, RP543, 07-90220-01 Chip Resistor Network 22 X4...
  • Page 74 Transistor t s i t s i t s i t s i Green Mode Fairchild Power 03-00365-00 Switch Capacitor t i c ± c t i t i c ± c t i 3300PF, 400V(X1), 250V(Y1), ± 05-33242-00 High Voltage Ceramic Capacitor c t i t i c ±...
  • Page 75 Connector LD2.0A-14Y, LD2.0A-14D, UL2468 14-55514-00 2mm*14pin Wire J906 26AWG, L=275±5mm LD2.0A-6Y, LD2.0A-6D, UL2468 14-55506-00 2mm*6pin Wire J907 26AWG, L=80±5mm Metal Parts × .1 FPP BOARD P/N 01-55504-00 Diode 33-50565-01 5, blue and orange D800 c t i DO-35 Transistor 1 or NEC Capacitor Pitch=2.5mm 5×...
  • Page 76 Resisstor FB860, FB861, FB862, FB863, FB863 0805 07-97509-00 RESISTOR 75 , ±1% 07-90151-00 RESISTOR 150 , ±5% 07-90472-00 RESISTOR 4K7 , ±5% 07-90223-00 RESISTOR 22K , 5% R884,R885 07-10102-00 Carbon Film Resistor 1K , 1/6W, ±5% R866, R867, R868, R869, R870, R877 Pitch=5mm 07-10472-00 Carbon Film Resistor...
  • Page 77 × × 68-051001-1 Shielding Box(UP) Stainless Steel T=0.5mm 68-051002-1 Shielding Box(DOWN) Stainless Steel T=0.5mm S68-051003-0 Loader Cover Stainless Steel T=0.5mm 70-051002-0 Ring Cursor Kirksite S70-051006-1 Stop-Menu Button Kirksite S70-048012-1 Input Button Kirksite S70-048013-0 Power Button Kirksite 70-051007-0 Enter Button Kirksite (69-009001-0) Spacer Support 1 (S69-051001-0) Spacer Support...
  • Page 78 94-009005-0 Garentee Card × 94-051004-0 Barcode Label C version, 117×155mm 94-051005-0 Barcode Label AH version, 117×155mm S94-051006-0 Barcode Label chinese version, 117×155mm 94-051014-0 Barcode Label C version, 117×155mm 94-051015-0 Barcode Label Ah version , 117×155mm S94-051016-0 Barcode Label chinese version, 117×155mm 94-014006-0 CCC LABEL 15mmx11.8mm...

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