Lenovo D170 Wide Service Manual Download

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17" LCD Color Monitor Lenovo D170 Wide

12. Different Parts List

Diversity of T78GRDNCRWG2NC Compared with T77HRDNDRWH6NN

Location

Part No. for TPV

Description

U401

056G1125701 X WLNRWR7GNQ2

IC MCU RTD2120L-LF REALTEK

019G6014 1

TIE FOR STRAP

040G 45760850A

CERTIFICATION LABEL

040G 581 26704

SHIPPING LABEL

044G9003 12

CORNER PAPER

050G 600 1 W

WHITE STRAP

089G179W30N500

FFC

CABLE

0M1G 130 6120

SCREW M3X6

750GLG171W3C11N0LX

PANEL LM171WX3-TLC1 KR LGD

CBPC8LRDG2Q1

MAIN BOARD G2498-2-K-X-13-080512

KEY BOARD G2515-1-X-X-6-080313

P/N LABEL FOR MANUAL PE BAG

http://www.wjel.net

Summary of Contents for D170 Wide

Page 1: ...truction 6 3 1 General Instructions 6 3 2 Control Button 6 3 3 Adjusting the Picture 7 4 Input Output Specification 9 4 1 Input Signal Connector 9 4 2 Factory Preset Display Modes 10 4 3 Panel Specification 11 5 Block Diagram 14 5 1 Software Flow Chart 14 5 2 Electrical Block Diagram 16 6 Schematic 18 6 1 Main Board 18 6 2 Power Board 23 7 PCB Layout 25 7 1 Main Board 25 7 2 Power Board 28 7 3 Key...

Page 2: ...nitor Lenovo D170 Wide 2 Revision List Revision Date Revision History TPV Model A00 May 21 07 First Version Release T77HRDNDRWH6NN T78GRDNCRWG2NC A01 Aug 18 2008 Add new BOM T78GRDNCRWG1NC h t t p w w w w j e l n e t ...

Page 3: ...ircumstances should the original design be modified or altered without written permission from AOC AOC assumes no liability express or implied arising out of any unauthorized modification of design Servicer assumes all liability FOR PRODUCTS CONTAINING LASER DANGER Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM CAUTION Use of controls or adjustments or performance of procedures ...

Page 4: ...ype 8 ms for HSD panel Sync Type H V TTL H Frequency 30kHz 80kHz Input V Frequency 50 75Hz ON Mode 30W Power Consumption OFF Mode 2W Contrast Ratio 500 1 Dot Clock 137MHz White Luminance 250cd m2 Max Resolution 1440 x900 Display Color 262 144 Plug Play VESA DDC2BTM Power Source 90 264VAC 47 63Hz Environmental Considerations Operating Temp 0 C to 45 C Storage Temp 20 C to 60 C Operating Humidity 10...

Page 5: ...l logic and DDC The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage Monitor Block Diagram HOST Computer AC IN 100V 240V Power Board Include adapter inverter Flat Panel and CCFL backlight Main Board RS232 Connector For white balance adjustment in factory mode CCFL Drive Video signal DDC Key Board h t t p w w w w j e l n e t ...

Page 6: ...uttons are located on the right side of the monitor By changing these settings the picture can be adjusted to your personal preferences The power cord should be connected Connect the video cable from the monitor to the video card Press the power button to turn on the monitor the power indicator will light up 3 2 Control Buttons h t t p w w w w j e l n e t ...

Page 7: ...17 LCD Color Monitor Lenovo D170 Wide 7 3 3 Adjusting the Picture OSD functions h t t p w w w w j e l n e t ...

Page 8: ...17 LCD Color Monitor Lenovo D170 Wide 8 h t t p w w w w j e l n e t ...

Page 9: ...nput Signal Connector Pin No Description Pin No Description 1 Red Input 9 5VDC 2 Green Input 10 Connection detect 3 Blue Input 11 GND 4 GND 12 SDA 5 GND 13 H Sync 6 Red GND 14 V Sync 7 Green GND 15 SCL 8 Blue GND VGA connector layout 1 5 6 10 11 15 h t t p w w w w j e l n e t ...

Page 10: ...1 23 48 077 1040 800 120 56 64 50 800x600 72Hz 72 188 666 600 6 37 23 46 875 1056 800 80 16 160 49 5 800x600 75Hz 75 625 600 3 1 21 48 943 1088 832 80 48 128 53 25 832x624 75Hz 75 654 624 4 3 23 48 363 1344 1024 136 24 160 65 1024x768 60Hz 60 004 806 768 6 3 29 56 476 1328 1024 136 24 144 75 1024x768 70Hz 70 069 806 768 6 3 29 60 023 1312 1024 96 16 176 78 75 1024x768 75Hz 75 029 800 768 3 1 28 67...

Page 11: ...el is composed of a TFT LCD panel a driving circuit and a back light system This TFT LCD has a 17 0 inch diagonally measured active display area with XGA resolution 900 vertical by 1440 horizontal pixel array and can display up to 262 144 colors 4 3 2 Features _ 17 0 WXGA for Monitor application _ High Resolution 1440 900 _ 2 ch LVDS interface system _ Input timing DE mode _ Wide Viewing Angle _ R...

Page 12: ...17 LCD Color Monitor Lenovo D170 Wide 12 4 3 4 Optical Characteristics h t t p w w w w j e l n e t ...

Page 13: ...17 LCD Color Monitor Lenovo D170 Wide 13 4 3 5 Parameter guide line for CCFL Inverter TFT LCD Module Back Light Unit h t t p w w w w j e l n e t ...

Page 14: ...17 LCD Color Monitor Lenovo D170 Wide 14 5 Block Diagram 5 1 Software Flow Chat 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18 h t t p w w w w j e l n e t ...

Page 15: ... set it to green color Scalar initializes 10 In standby mode 11 Update the lifetime of back light 12 Check the analog port are there any signals coming 13 Does the scalar send out an interrupt request 14 Wake up the scalar 15 Are there any signals coming from analog port 16 Display No connection Check Signal Cable message And go into standby mode after the message disappear 17 Program the scalar t...

Page 16: ...am 5 2 1 Main Board Scalar IC RTD2025L Include ADC OSD U501 EEPROM M24C16 U403 H sync V sync RGB EPR_SDA EPR_SCL LCD Interface CN601 Key Board Control CN202 Crystal 24MHz X401 D Sub Connector CN301 MCU RTD2120L U401 CLKOUT DDC1_SCL DDC1_SDA h t t p w w w w j e l n e t ...

Page 17: ...rt Circuit R904 R932 R933 PWM Control IC Transformer AC input 12V ON OFF Control PWM Control IC Feedback Circuit Output Circuit Transformer MOSFET Over Voltage Lamp ON OFF Over Voltage Protect 5V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes CN902 h t t p w w w w j e l n e t ...

Page 18: ..._KEY 4 C205 0 1uF 16V BKLT EN High ON 3 3V TPV Top Victory Electronics Co Ltd R202 4K7 1 16W INV_ON 4 MVCC Mute R210 10K 1 16W CN202 CONN 1 2 3 4 5 6 FB202 NC Q202 PMBS3904 VCC3 C204 0 1uF 16V ZD202 NC 1 2 Panel ID 3 3V PWM R201 200 1 16W 02 POWER C203 100uF 25V CN201 CONN 1 2 3 4 5 6 7 8 9 Back light Dimming 3 3V PWM R213 10K 1 16W CMVCC Near to Connect CMVCC BKLT EN LED_R 715G2498 1 AO LED_R 4 D...

Page 19: ...99 3 1 2 FB301 BEAD 1 2 RTD_G 5 VGA_B VGA_B RTD_R 5 C307 0 047uF ZD303 UDZS5 6B 1 2 ZD301 UDZS5 6B 1 2 DSUB_V RTD_G VGA_G VGA_G RTD_B 715G2498 1 AO D302 BAV99 3 1 2 DSUB_CONNECT 4 VGA_CON ZD307 UDZS5 6B 1 2 R301 100R 1 16W C306 0 047uF C304 0 047uF VGA_G TPV Top Victory Electronics Co Ltd ZD304 UDZS5 6B 1 2 C315 0 1uF 16V R309 100R 1 16W CN301 DB15 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 17 16 RTD_R R...

Page 20: ...K8 1 16W R402 1K 1 16W RTD_SD3 SDI C403 0 1uF 16V R451 4K7 1 16W C409 NC R406 4K7 1 16W RTD_SD3 SDI 5 DIM MCU_VCC_S MVCC 3 PANEL_VCC B 4 6 Monday May 14 2007 Title Size Document Number Rev Date Sheet of DSUB_CONNECT R407 4K7 1 16W R411 4K7 1 16W INV_ON 2 C406 0 1uF 16V DDC1_SCL R427 0R05 1 16W Volume 2 C402 1uF 10V DSUB_V 3 R429 0R05 1 16W R416 10K 1 16W Q401 PMBS3904 LED_R 2 D401 NC 1 3 2 VCC3 CR...

Page 21: ...S AHS ADC_GND B B G G R R ADC_VDD BJT_B VCCK PGND TXE3 TXE3 TXE2 TXE2 TXO1 TXO1 TXO2 TXO2 TXOC TXOC TXO3 TXO3 TXE0 TXE0 TXE1 TXE1 V0 RX2N VCLK RX2P TMDS_VDD XIN DDCSCL PWM0 DDCSDA PWM1 IRQ SCL SDA VCCK PGND TXO0 TXO0 RXO1 Q502 MMBT2907AK LVDS_O 0 9 6 LVDS_E0 RTD_G RXO1 RXO0 LVDS_O8 LVDS_E9 RXE2 RTD_SD3 SDI 4 LVDS_O5 CRYSTAR_OUT LVDS_E 0 9 6 RXO3 RXEC C502 0 1uF 16V R1 8DVCC RXE0 RXOC LVDS_E4 RXE1 ...

Page 22: ...f R601 10K 1 16W RXE1 LVDS Panel FFC Type RXEC RXO1 RXO0 RXEC RXE0 RXO0 LVDS_O4 RXO0 LVDS_O1 CMVCC 3 LVDS_O5 LVDS_E8 RXO2 RXE3 FB601 120 G RXOC D RXE2 R605 4K7 1 16W RXO3 LVDS_O8 RXO2 R606 NC R0805 RXEC RXE0 RXO1 AO3401L LVDS_E0 RXO1 RXO3 RXE2 C604 47uF 25V TPV Top Victory Electronics Co Ltd RXO3 2006 11 7 Add pull up 4K7 to MVCC LVDS_O0 RXO0 Q601 AO3401 R604 47K 1 16W LVDS_O 0 9 5 RXOC PANEL_VCC ...

Page 23: ...R906 NC ZD905 RLZ18B 1 2 R935 100 1 4W 5V R933 300K 1 4W C932 1000pF D903 LL4148WP L904 1 1uH D906 SP10100 1 2 3 C925 NC C906 1500pF 1KV R924 150R 1 8W C929 0 001uF HS4 HEAT SINK 1 2 12V F903 FUSE C901 0 001uF 250V C938 1500pF 1KV C924 0 1uF R932 300K 1 4W ZD901 NC 1 2 MUTE R918 100 1 4W 1 2 Tuesday April 10 2007 Title Size Document Number Rev Date Sheet of R914 0 47 2W R904 300K 1 4W R944 1K 1 4W...

Page 24: ... 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IN1 IN1 FB DTC CT RT GND C1 E1 E2 C2 VCC CONT VREF IN2 IN2 R818 1K 1 10W 1 R830 NC C817 NC C838 1000pF R826 1K 1 8W R807 10K 1 10W R804 100 1 8W R865 NC R808 1K 1 10W 1 Q806 PMBS3904 R839 22R 1 8W R813 1K 1 10W R832 10K 1 10W R810 51K DTC C801 15pF 3KV R817 10K 1 10W R862 1M 1 10W 5 R856 33 1 4W Q802 AM9945N T1 PF 1 2 3 4 8 7 6 5 S G S G D D D D C823 0 0022u...

Page 25: ...17 LCD Color Monitor Lenovo D170 Wide 25 7 PCB Layout 7 1 Main Board 715G2498 1 AO h t t p w w w w j e l n e t ...

Page 26: ...17 LCD Color Monitor Lenovo D170 Wide 26 h t t p w w w w j e l n e t ...

Page 27: ...17 LCD Color Monitor Lenovo D170 Wide 27 h t t p w w w w j e l n e t ...

Page 28: ...17 LCD Color Monitor Lenovo D170 Wide 28 7 2 Power Board 715G2545 1 2 h t t p w w w w j e l n e t ...

Page 29: ...17 LCD Color Monitor Lenovo D170 Wide 29 7 3 Key Board 715G2515 1 h t t p w w w w j e l n e t ...

Page 30: ... 8 Maintainability 8 1 Equipments and Tools Requirement 1 Voltmeter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an IBM Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Service Manual 8 User Manual h t t p w w w w j e l n e t ...

Page 31: ...r key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Reinsert or check the power section X401 oscillate waveforms are normal Measure U201 Pin2 3 3V OK OK NG NG NG Replace U201 Check U401 Replace X401 OK NG Replace U501 Replace U401 OK NG h t t p w w w w j e l n e t ...

Page 32: ... PIN2 3 3V Replace U201 X401 oscillate waveforms are normal Replace X401 Check if the sync signal from computer is output and video cable is connected normally Input the sync signal of computer or change the cable Replace U501 NG OK OK NG Check U401 Replace U401 h t t p w w w w j e l n e t ...

Page 33: ...el X401 oscillate waveform is normal Check Correspondent component Replace Panel Check Correspondent component Replace U501 OK OK Replace X401 OK NG NG NG NG Check reset circuit of U501 is normal OK Check Q602 Q601 is broken or CN601 solder Check U401 OK Replace U401 NG h t t p w w w w j e l n e t ...

Page 34: ...1 C908 2 Check IC903 OVP circuit Check ZD902 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C907 Check start voltage for the pin3 of IC901 NG Check the auxiliary voltage is bigger than 10V and smaller than 20V OK OK NG Check F903 Q901 D900 T901 D915 D916 ZD921 ZD922 IC901 OK Check IC901 pin8 PWM wave OK Check IC901 NG NG NG OK NG h t t p w w w w j e l n e t ...

Page 35: ...C801 pin12 12V NG OK Change Q805 or Q808 NG OK Change IC801 NG OK Check Q802 Check the input wave of pin1 pin3 pin4 pin6 for T801 NG Check the output of T801 Check C839 C838 Check connecter lamp OK NG Change T801 OK Check Q802 PIN1 3 have the output of square wave at short time Check IC801 PIN5 6 have the output of square wave at short h t t p w w w w j e l n e t ...

Page 36: ...pad Board OSD is unstable or not working Is Key Pad Board connecting normally Connect Key Pad Board Is Button Switch normally Replace Button Switch Y N N Is Key Pad Board normally Replace Key Pad Board Y N Y Check Main Board h t t p w w w w j e l n e t ...

Page 37: ...e power cord and then plug the power cord Then the factory OSD will be at the left top of the panel 4 Bias adjustment Set the Contrast to 50 Adjust the Brightness to 80 5 Gain adjustment Move cursor to F and press MENU key A Adjust Reddish 6500K color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 3 with up or down arrow on chroma 7120 3...

Page 38: ...peat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 2 D Adjust sRGB color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Channel 10 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 313 20 y 329 20 Y 160 20cd m2 4 Adjust the RED of color3 on factory window until chroma 7120 indicat...

Page 39: ...17 LCD Color Monitor Lenovo D170 Wide 39 10 Monitor Exploded View h t t p w w w w j e l n e t ...

Page 40: ...G 88606 16 R PE BAG FOR CLAMP Q33G0143 UG 1L 32 CABLE CLAMP A34G0433 UG 1B REAR COVER 17 Q33G0130 AI 1L KEY BUTTON Q34G0177 UFA1B 30 BEZEL L17W 7K 705GQ734227 STAND ASS Y 17 Q45G 88607 27 PE BAG FOR BASE Q45G 88609 93 EPE BAG FOR MONITOR Q52G6020 49 PROTECT FILM 750GLH70GW112N PANEL HSD170MGW1 A00 HSD 089G 728HAA 1 SIGNAL CABLE 089G 728TAA 1 D SUB CABLE 1800MM 095G8018 3DE09 LVDS CABLE 040G 581624...

Page 41: ...J TACT SWITCH TSPB 2 NP SW001 077G 600 1GCJ TACT SWITCH TSPB 2 NP LED001 081G 12 2 GP GP36032ME 50 ZO GND1 095G 900101 D HARNESS 50MM UL1007 CN802 033G8020 2D F CONNECTOR CN801 033G8020 2D F CONNECTOR CN802 033G8020 2D U WAFER CN801 033G8020 2D U WAFER CN802 033G8020 2E F CONNECTOR CN801 033G8020 2E F CONNECTOR 040G 45762420A LABEL 25X6MM IC903 056G 139 7 1 IC EL817MA M TYPE IC903 056G 139 3A PC12...

Page 42: ... Q85G0002 1 SHIELD_MAIN A34G0289 UG 1B STAND A37G0031 5 HIGNE AM1G1740 10 47 CR3 SCREW M3X6 Q34G0178 UG 1B 33 BASE LEOVO U402 056G 158501 AZ431AN A E1 U501 056G 562701 SCALER IC RTD2025L QFN 48 U201 056G 585 4A AP1117E33LA U401 056G1125701 X IC MCU RTD2120L LF REALTEK U403 056G1133 56 M24C16 WMN6TP Q202 057G 417 4 PMBS3904 PHILIPS SMT 04 Q401 057G 417 4 PMBS3904 PHILIPS SMT 04 Q204 057G 417 6 PMBS...

Page 43: ...0402103 RST CHIPR 10 KOHM 5 1 16W R213 061G0402103 RST CHIPR 10 KOHM 5 1 16W R404 061G0402103 RST CHIPR 10 KOHM 5 1 16W R416 061G0402103 RST CHIPR 10 KOHM 5 1 16W R425 061G0402103 RST CHIPR 10 KOHM 5 1 16W R436 061G0402103 RST CHIPR 10 KOHM 5 1 16W R438 061G0402103 RST CHIPR 10 KOHM 5 1 16W R601 061G0402103 RST CHIPR 10 KOHM 5 1 16W R207 061G0402121 RST CHIP 120R 1 16W 5 R208 061G0402121 RST CHIP ...

Page 44: ... 16V X5R C403 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C406 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C410 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C501 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C503 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C506 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C507 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C603 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C502 065G0402104 15 MLC...

Page 45: ...3300 1F RST CHIPR 3 KOHM 1 1 10W C007 065G0603104 32 CHIP 0 1UF 50V X7R C008 065G0603104 32 CHIP 0 1UF 50V X7R C009 065G0603104 32 CHIP 0 1UF 50V X7R C010 065G0603104 32 CHIP 0 1UF 50V X7R C006 065G0603104 32 CHIP 0 1UF 50V X7R Q901 057G 667 30 2SK2645 Q901 057G 724 11 STP9NK65ZFP HS3 090G6263 1 HEAT SINK 0M1G1730 8128 CR3 SCREW HS4 090G6084 1 GP HEAT SINK D905 093G 60257 DIODE SB1060FCT ITO 220AB...

Page 46: ... 061G0603100 1F RST CHIPR 1 KOHM 1 1 10W R926 061G0603100 1F RST CHIPR 1 KOHM 1 1 10W R942 061G0603100 1F RST CHIPR 1 KOHM 1 1 10W R863 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R832 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R828 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R820 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R817 061G0603100 2F RST CHIPR 10 KOHM 1 1 10W R807 061G0603100 2F RST CHIPR 10 KOHM 1...

Page 47: ...206101 100 1206 R946 061G1206102 RST CHIPR 1 KOHM 5 1 4W R945 061G1206102 RST CHIPR 1 KOHM 5 1 4W R944 061G1206102 RST CHIPR 1 KOHM 5 1 4W R941 061G1206102 RST CHIPR 1 KOHM 5 1 4W R912 061G1206221 RST CHIPR 220 OHM 5 1 4W R933 061G1206304 300 KOHM 1 8W R932 061G1206304 300 KOHM 1 8W R904 061G1206304 300 KOHM 1 8W R856 061G1206330 RST CHIPR 33 OHM 5 1 4W R855 061G1206330 RST CHIPR 33 OHM 5 1 4W R90...

Page 48: ...07 093G 64 44 S LL4148WP D812 093G 64 44 S LL4148WP D813 093G 64 44 S LL4148WP D814 093G 64 44 S LL4148WP D817 093G 64 44 S LL4148WP D903 093G 64 44 S LL4148WP D915 093G 64 44 S LL4148WP D916 093G 64 44 S LL4148WP D813 093G 6432S IN4148W D916 093G 6432V LL4148 GSO8 D915 093G 6432V LL4148 GSO8 D903 093G 6432V LL4148 GSO8 D817 093G 6432V LL4148 GSO8 D814 093G 6432V LL4148 GSO8 D812 093G 6432V LL4148...

Page 49: ...F 1KV Z5F 10 C906 065G 2K152 1T GP CERAMIC CAP C908 067G215Y2207KT CAP 105 22UF M 50V KINGNICHI FB801 071G 55 9 T FERRITE BEAD FB901 071G 55 29 FERRITE BEAD F901 084G 55 7W FUSE 3 15A 250V WICKMANN F903 084G 56 4W FUSE 4 0A 250V D900 093G 6026T52T RECTIFIER DIODE FR107 D901 093G 6038T52T FR103 715G2545 1 2 POWER BOARD PCB h t t p w w w w j e l n e t ...

Page 50: ... 2 K X 13 080512 CN601 033G801930F CH JS CONNECTOR D303 093G 6433S DIODE BAV99 SEMTECH D302 093G 6433S DIODE BAV99 SEMTECH D301 093G 6433S DIODE BAV99 SEMTECH 715G2498 3 K MAIN BOARD PCB KEPC7QV2 KEY BOARD G2515 1 X X 6 080313 ZD005 093G 39P599 T MM3Z5V6B ZD004 093G 39P599 T MM3Z5V6B ZD003 093G 39P599 T MM3Z5V6B ZD002 093G 39P599 T MM3Z5V6B ZD001 093G 39P599 T MM3Z5V6B Q07G 8 3 2 COMPOUND PALLET Q...

Page 51: ...0512 CN601 033G801930F CH JS CONNECTOR D303 093G 6433S DIODE BAV99 SEMTECH D302 093G 6433S DIODE BAV99 SEMTECH D301 093G 6433S DIODE BAV99 SEMTECH 715G2498 3 K MAIN BOARD PCB KEPC7QV2 KEY BOARD G2515 1 X X 6 080313 ZD005 093G 39P599 T MM3Z5V6B ZD004 093G 39P599 T MM3Z5V6B ZD003 093G 39P599 T MM3Z5V6B ZD002 093G 39P599 T MM3Z5V6B ZD001 093G 39P599 T MM3Z5V6B Q07G 8 3 2 COMPOUND PALLET Q07G 8 3 3 CO...

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