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Service Manual

20080604

ITEM

P/N

Description

Supplier

Usage Location

735110009100
R

ASSY,H/S,Q850,LP2234ROHS

410500059290
R

XSTR AP2761I-A N-CH TO-220CFM
ADVANCED P

APEC,

1 Q850,

410050103050
R

XSTR FMA09N65GX N-CH
TO-220F(FUJI) RoHS

FUJI,

410050057280
R

XSTR STP8NK80ZFP N-CH TO220FP (ST) ST,

507200004310
R

HEATSINK,45x16.7xt10mm(TWO HOL
E),LE1911

DMC,ORIENTAL POWER,

509146308102
R

SCREW,PW,CROSS W/WAS,M3*8,Zn

GAOYI,LIQUAN,YIJIE,

20080604

ITEM

P/N

Description

Supplier

Usage Location

735110009110
R

ASSY,H/S,U880,LP2234 ROHS

412000638240
R

IC KA278R12CTU
TO-220F-4L(Fairchild)ROH

FAIRCHILD,

1 U880,

509146308102
R

SCREW,PW,CROSS W/WAS,M3*8,Zn

GAOYI,LIQUAN,YIJIE,

507200004100
R

HEATSINK,30x16.7xt10mm, LE1911

DMC,ORIENTAL POWER,

20070511

ITEM

P/N

Description

Supplier

Usage Location

791112100000
R

PCBA,CONTROL/B(PWR LD7575),LE1996
RoHS

430632080020
R

WFR. 8P 2.54mm 90°,HEADER,W/O
PIN2,RoHS

CVILUX,FOXCONN,JOWLE,

1 CN852,

791112140000
R

PCBA,CONTROL/B(PWR
LD7575),SMD,LE1996 RO

511130001200
R

SOLDER
BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0

TOMAS,

0.1

20080514

ITEM

P/N

Description

Supplier

Usage Location

791941410500
R

PCBA,PWR&INV./B,AI,LP2234ROHS

791941450500
R

PCBA,PWR&INV./B,AI/A,LP2234ROHS

791941460500
R

PCBA,PWR&INV./B,AI/R,LP2234ROHS

20080702

ITEM

P/N

Description

Supplier

Usage Location

791941420500
R

PCBA,PWR&INV./B,MI,LP2234ROHS

430637020030
R

WFR. 2P P=3.5mm 90°W/LOCK,RoHS

CVILUX,FCN,FOXCONN,

4 CN1,CN2,CN3,CN4,

440149000350
R

SKT AC 10A/250V U/C/V, H 1.0MM ROHS TECX,

1 CN850,

430301000190
R

HRN ASS'Y 10P 80mm UL1007#24

FOXCONN,HEIGHTEN,JVE,

1 CN851,

442299001100
R

CON,POWER JACK R/A 1P,JPD1030-
H224-4F,R

DLK,FOXCONN,S.C.,ZJGHJ,

1 CN880,

418103051920
R

CAP CD NPO 3pF 3KV D,S7.5, RoHS

JNC,SUCCESS(SEC),

4 C21,C22,C23,C24,

Содержание UltraSharp 2208WFP

Страница 1: ...Service Manual 0 Service Manual LCD Monitor 2208WFP ...

Страница 2: ...ease Copyright Copyright 2007 InnoLux Display Corp Ltd All Rights Reserved This manual may not in whole or in part be copied Photocopied reproduced translated or converted to any electronic or machine readable form without prior written permission of Foxconn Tech Corp Ltd Dell 2208WFPf Service Manual ...

Страница 3: ...LY BLOCK 22 3 ASSEMBLY BLOCK 23 CHAPTER 5 TEST AND ADJUSTMENT 24 1 FUNCTION KEY DEFINITIONS 24 2 OSD CONTROL 24 3 FACTORY MODE INTRODUCTION 26 4 BURN IN PATTERN 27 5 AUTO COLOR BALANCE AUTOMATICALLY CALIBRATE CHIP ADC PARAMETER BY USING CHIP INTERNAL DAC 27 6 UPLOAD FIRMWARE TO MCU VIA VGA CABLE 32 7 AFTER REPAIR TO ENSURE THE QUALITY YOU SHOULD DO THE FOLLOWING TEST AND ADJUSTMENT 27 CHAPTER 6 TR...

Страница 4: ... it gets wet unplug the power cable immediately and consult your closed dealer Always unplug the monitor before cleaning it Clean the cabinet with a clean dry cloth Apply non ammonia based cleaner onto the cloth not directly onto the class screen Do not place heavy objects on the monitor or power cord PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety vi...

Страница 5: ...hapter 2 SERVICE TOOLS EQUIPMENT REQUIRED 1 SIGNAL GENERATOR 2 MULTIMETER 3 SCREW DRIVER 4 OSCILLOSCOPE 5 Soldering IRON 6 SOLDER Lead free RoHS compliance 7 Color Analyzer 8 Realtek ISP_Programmer 9 Fox_VEDID_Programmer ...

Страница 6: ...h is a single layer board one is interface board including USB HUB 1up 2down one is keypad which is OSD control and one is USB transfer board located on the right side back cover The system function block diagram as below This PWA is included switching power supplier inverter for CCFL and interface board fig 1 Fig 1 INVERTER POWER ...

Страница 7: ...Service Manual 6 Fig 12 ...

Страница 8: ...Service Manual 7 Electronic Circuit Theory 2 1 Inverter PWM circuit 2 1 1 Inverter Control circuit fig 2 Fig 2 ...

Страница 9: ...r all bridge switches 2 1 2 Protection Circuit Over voltage and over current protection are monitored by the voltage on VSEN pin1 During normal operation if a CCFL is damaged or removed the voltage at VSEN exceeds the user defined preset voltage set by OVPT pin15 the driver output duty cycle is regulated and the shutdown delay timer is activated OVPT sets the overall protection threshold voltage t...

Страница 10: ...Service Manual 9 ...

Страница 11: ... the circuit AC Input voltage is from 90V to 264V R850 R851 are joined between two inputting main circuit to prevent man from shock L850 is used to filter low frequency noise C850 and C851 are used to discharge the noise that L850 produced High frequency waves are damped by C852 2 2 3 High Voltage to Low Voltage Control Circuit fig 6 ...

Страница 12: ...50 for normal operating When the sense voltage across the sense resistor R859 reaches the threshold voltage around 0 85v the output GATE drive will be turned off Every time when the output of power supply is shorted or over loaded the FB voltage will increase the build in PWM output will then be turned off Both of two will prevent the power supply from being overheated under over loading condition...

Страница 13: ...is supplied D880 D881 are used to rectify the inducted current C881 is used to store energy when current is reversed The parts including U880 are used to change the voltage from about 13V to steady 12V and then 12V voltage is supplied D856 is used to rectify the inducted current C874 C864 C875 are used to store energy when current is reversed The parts including L851 and C876 are used to smooth th...

Страница 14: ...105 are ESD protector to prevent U105 from ESD Signal DDC_SCL series clock inputs via CN102 15 and then passes through ZD106 for ESD protection goes into EDID EEPROM IC U103 6 Signal DDC_SDA series data inputs via CN102 12 and then passes through ZD103 for ESD protection goes into EDID EEPROM IC U103 5 Signal TTL vertical sync Vsync inputs via CN102 14 and then clamped by ZD105 Zener passes throug...

Страница 15: ...es clock inputs via CN201 6 and then passes through ZD204 Zener for ESD protection via R209 goes into EDID EEPROM IC U201 6 Signal DDC_SDA series data inputs via CN201 7 and then passes through ZD203 Zener for ESD protection via R210 goes into EDID EEPROM IC U201 5 CN201 15 is defined as cable detect pin this detector realize passes through R216 go into U108 25 and D210 is ESD protector U201 5V is...

Страница 16: ...eypad LED green on b When in Suspend mode U108 RTD2122L 48 sends out a low Voltage make Q108 3 sends out high Voltage and then to CN01 7 on keypad LED Amber ON 2 3 4 MATAR CHIP U105 RTD2545LH U108 RTD2122L U105 RTD2545LH 21 28 output 8 bit even and 29 38 output 8 bit odd LVDS digital data to panel control circuit through CN103 U108 RTD2122L 39 output PPWR H potential to make Q104 conducted and the...

Страница 17: ... DC_3 3V input to U108 and U108 reset circuit active U108 all registers will be set to default that means finish hardware power on When pull out power cord from AC socket the system shut down instantly for no supply Software power On Off When press power key U108 9 receives low pulse then U108 RTD2122L will be wake up and send control signals at 20 39pin to on CCFL and switch 5 0v to panel module ...

Страница 18: ...in Assignment 6 AC Outlet Pin Assignment Pin Symbol 1 Line 2 GND 3 Neutral 7 Inner Connector Pin Assignment 7 1 CN103 Connect M B to Panel Pin Symbol Description 1 Panel_Vcc Panel power supply typ 5 0V 2 Panel_Vcc Panel power supply typ 5 0V 3 Panel_Vcc Panel power supply typ 5 0V 4 NC 5 NC 6 NC Pin Symbol Pin Symbol Pin Symbol 1 Red 6 Red_GND 11 GND 2 Green 7 Green_GND 12 DDC_SDA 3 Blue 8 Blue_GN...

Страница 19: ...ock 23 RXOC LVDS signal of even channel clock 24 GND_LVDS LVDS Ground 25 RXO2 LVDS signal of even channel 2 26 RXO2 LVDS signal of even channel 2 27 RXO1 LVDS signal of even channel 1 28 RXO1 LVDS signal of even channel 1 29 RXO0 LVDS signal of odd channel 0 30 RXO0 LVDS signal of odd channel 0 7 2 CN1 CN2 CN3 CN4 Connect to Panel Backlight Pin Symbol Description 1 HV High voltage for lamp 2 LV Lo...

Страница 20: ...Service Manual 19 8 Key Parts Pin Assignments U105 RTD2545LH ...

Страница 21: ...Service Manual 20 8 1 U108 MCU RTD2122L ...

Страница 22: ...Service Manual 21 ...

Страница 23: ...Service Manual 22 ...

Страница 24: ...rrent for the controller When Vcc voltage trips the UVLO on this HV loop will be off to save the power loss on the startup circuit 8 4 U1 INL833 CCFL Inverter controller IC Pin Symbol I O Description 1 VSEN I Voltage sense Feedback 2 SSTCMP I Capacitor for soft star and loop compensation 3 CT I Timing resistor and capacitor for operation and striking frequency 4 RT1 I Timing resistor for striking ...

Страница 25: ...Service Manual 24 Chapter 4 Disassembly Assembly 1 Exploded Diagram ...

Страница 26: ...Service Manual 25 2 2208WFPf Disassembly Block Note 1 The arrows point out the direction of disassembly ...

Страница 27: ...Service Manual 26 3 Assembly Block Note 1 The arrows point out the direction of assembly ...

Страница 28: ... highlight bar 3 symbol molded into button move up the highlight bar 4 Input select Select input signal Hot Key Function Automatic adjust Directly press Brightness Contrast Icon Directly press Factory Modes Keys Function Auto Color Balance Purpose Automatically calibrate chip ADC parameter by using chip internal DAC Process If we want to do Auto Color Balance again please confirm the following ste...

Страница 29: ...bPr Gamma PC MAC Preset Modes Graphics Video Desktop MultiMedia Game sRGB Warm Cool Back Red Green Blue Color Reset Color Presets Custom R G B Exit Menu Preset Modes Graphics Exit Menu Back Input Color Format RGB YPbPr Preset Modes Graphics Video Movie Game Sports Color Presets Nature Hue Saturation Color Reset Preset Modes Video Exit Menu Back Horizontal Position Vertical Position Main Menu Displ...

Страница 30: ... Yes No DDC CI Enable Disable LCD Conditioning Enable Disable Factory Reset Reset All settings Other Settings Exit Menu 1st Level 2nd Level 3rd Level 4th Level 5th Level Brightness Contrast Auto Adjust For VGA Press to adjust the screen automatically Auto Select VGA Input Source DVI D Input Color Format RGB YPbPr Mode Selection Graphics Video Preset Modes Standard MultiMedia Game Warm Cool R G Cus...

Страница 31: ...arency Menu Timer Menu Lock Lock Unlock DDC CI Enable Disable LCD Conditioning Enable Disable Factory Reset Reset All settings Other Settings Factory Mode Introduction With signal input press Power button to turn off the monitor Press Menu and buttons together and then press Power button to turn on the monitor After power on Press key enter Factory mode Fig 10 Fig9 ...

Страница 32: ... end white balance program Time Turn on time of the panel DEBUG Debug tool of scale IC Dell panel P N LCD supplier Panel Supplier P N Dell P N CMO 22 W M220Z1 L05 D966D Burn in pattern Burn in pattern will self generate automatically without VGA and DVI cable plugged in when the monitor set at Burn in on mode and burn in pattern will not be stopped until plugging in the VGA cable Exit Burn in mode...

Страница 33: ...d display 5 MOSAIC pattern on the monitor Press Power button to power off the monitor Press Menu and Auto Plus buttons simultaneously then press Power button to power on the monitor Press Plus Key select Other Settings Menu then Press Plus Key and choose factory at bottom Set BurnIn Mode item to ON then execute Auto Color item After the Auto Color Balance process finished go back to Other Settings...

Страница 34: ...Service Manual 33 Fig 11 The detailed reprogramming procedures will be described in ISP User s Guide After repair to ensure the quality you should do the following test and adjustment ...

Страница 35: ... saving mode Chroma Signal Generator VGA cable detector When select VGA model and VGA cable is not plugged out self test OSD will be floated Visual check Y measurement at default setting 1 Set brightness and contrast to default value 75 at 6500K 2 With full white pattern Y shall be 220 20 cd m2 Chroma Signal Generator and Color Analyzer OSD Lock Test Soft Lock When OSD is locked this icon should a...

Страница 36: ...he crosshatch pattern This LCM support 10 timing modes if the input timing mode is out of specification Cannot Display this Video Mode will be displayed on the screen If brightness uneven repairs Inverter circuit or change a new panel If you find the vertical line or horizontal line lost on the screen please change panel If the self test pattern is moving on the screen please check whether VGA Cab...

Страница 37: ...f IF Board U108 normal when power AC on Change U108 NO Is the keypad cable connective OK Reassembly or changing Yes Is theLED control signal at 1 of U108 high low convertible when DC on off NO NO Change Q107 Is the key function OK NO Press power key to DC on the monitor if display ok the process is end if no display see the no backlight process Yes Upgrade Firmware to MCU U108 by VGA port with ISP...

Страница 38: ...4 separately when select VGA mode by OSD Do the Hsync Vsync Signals exist in R133 R134 Do the Hsync Vsync Signals exist in U105 9 8 Is the Q108 work normal Is theLED control signal at 48 of U108 high low convertible when DC on off END Insert VGA Cable correctly Check R133 R134 Change R135 R136 Change Q108 NO NO NO NO YES YES YES YES YES Change U108 NO ...

Страница 39: ...U1 Yes Vsense voltage is 2 9V No Are there PWM signal on pint on Pin12 of U1 Yes Pin14 of U1 Voltage is Low Level Pin6 10 of U1 voltage is high level voltage No power supply to inverter No Yes Check the cable that from I F BD to P I BD is ok No Q6 Q7 fail Yes Check power supply No Replace Q6 Q7 Check I F BD No Check I F BD No Lamp connector opened Yes U1 Failure No Feedback circuit failure Yes Che...

Страница 40: ...es check Q104 and Q101circuit Check DC 5 0V on CN103 1 2 3 Are there data output on U105 25 38 Change U105 END Change D103 D104 D105 YES YES VGA YES NO NO NO IS the display is white and cannot display OSD when press key Yes Is the FFC cable inserting ok if not reinsert else change FFC cable No Is display selftest picture at VGA mode or DVI mode DVI Is there DVI signal in U105 2 3 4 5 6 7 47 48 YES...

Страница 41: ...Service Manual 40 6 At 32 gray scale pattern color lost in some scale Color lost in some scale at 32 gray scale pattern Re insert the FFC Cable Change FFC Cable Change U105 OK END OK END NO NO ...

Страница 42: ...NGKUO TATCHUN 1 412000653060R IC RTD2545LH GR QFN48 REALTEK ROHS RTD 1 412000642140R IC RTD2122L LF LQPF48 Realtek RoHS RTD 1 412000668390R IC USB2514 AEZG 36QFN SMSC SMSC 1 412000224482R IC AT24C16BN SH T 16K ATMEL SOIC 8 ROHS ATMEL 1 412000224280R IC M24C16 WMN6TP SO8 16K ST ROHS ST 0 412000481990R IC CAT24C16WI TE13 SOIC 8 CATALYST RoHS CATALYST 0 412000332020R IC LD1117AL 3 3 A TO 252 UTC RoHS...

Страница 43: ... ROHS CVILUX FOXCONN CN104 40 443842024060R CON DVI D RA 24 1P FEM W O SCR EW QH1112 DLK FOXCONN ZJGHJ CN201 50 432008010310R XTAL 24 000MHz 20pF HC 49US 30PPM DIP Ro HARMONY TXC ZGC X301 X101 60 442849001020R CON USB R A 1P UC11123 LK1 4F RoHS FOXCONN TEKCON P301 70 442849001030R CON USB A R A 8 POS T H UB11123 8D1 4F R FOXCONN TEKCON P302 80 430300802110R HRN ASS Y 8P 100MM UL1430 26 FOXCONN HEI...

Страница 44: ... R154 R175 R179 R180 R182 R R211 R212 R219 R220 180 414918010450R RES SMD 0402 100KΩ J RT RoHS TA I UNIOHM WALSIN YAGEO R106 R109 R304 R307 R308 R309 R321 190 414918027350R RES SMD 0402 27KΩ J RT RoHS TA I UNIOHM WALSIN YAGEO R107 R306 200 414918750910R RES SMD 0402 75Ω F RT RoHS TA I UNIOHM WALSIN YAGEO R117 R118 R119 R122 R123 R124 210 414918010250R RES SMD 0402 1KΩ J RT RoHS TA I UNIOHM WALSIN ...

Страница 45: ...MI 430 412000372070R IC AZ1117H 3 3 SOT 223 AAC RoHS BCD 430 412000598990H IC EC50117KBG 3 3V SOT223 E CMOS E CMOS 460 419314734010R C SMD 0402 X7R 0 047uF 16V K RoHS DARFON WALSIN YAGEO C113 C114 C115 C119 C120 C121 470 511130002200R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 ROHS TOMAS 470 511130002201R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 TOMAS 470 511130002202R SOLDER PASTE Sn95 5 Ag3 9 Cu0 6 TAMURA 2 power b...

Страница 46: ... Supplier Usage Location 791112100000 R PCBA CONTROL B PWR LD7575 LE1996 RoHS 10 430632080020 R WFR 8P 2 54mm 90 HEADER W O PIN2 RoHS CVILUX FOXCONN JOWLE 1 CN852 20 791112140000 R PCBA CONTROL B PWR LD7575 SMD LE1996 RO 1 30 511130001200 R SOLDER BAR Sn96 5 Ag3 0 Cu0 5 Ni0 06 Ge0 TOMAS 0 1 20080514 ITEM P N Description Supplier Usage Location 791941410500 R PCBA PWR INV B AI LP2234ROHS 10 7919414...

Страница 47: ...6020 R SCHTKYSR520F72 LF 200V 5A DO 201AD FEC R FRONTIER 2 D880 D881 150 411090056450 R SCHTKYSR5200PT LF 200V 5A DO 201AD CHENM CHENMKO 0 150 411030072520 R DIO SF50DG E1 200V 5A DO 201AD LITEON RO LITEON 0 180 412140002380 R IC LTV817M PR VDE LITE ON P 10mm RoHS LITEON 1 I850 190 425000010900 R COIL CHK 17mH A10 ET24 CHK 090 RoHS DARFON FOXCONN FRONTIER LISHIN 1 L850 200 425000010690 R COIL CHK ...

Страница 48: ...0 R RES SMD 0603 220Ω J RT RoHS REV A TA I WALSIN YAGEO 1 R849 90 412000453820 R IC LD7575PS SOP8 LEADTREND RoHS LEADTREND 1 U850 110 490712100200 R PCB CONTROL PWR LD7575 LE1521 GOODWELL SHENG HUA WELFARE 1 120 511130002200 R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 ROHS TOMAS 0 1 120 511130002201 R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 TOMAS 0 120 511130002202 R SOLDER PASTE Sn95 5 Ag3 9 Cu0 6 TAMURA 0 2008070...

Страница 49: ...AI YUAN 2 R850 R851 160 411131430010 R ZENER 30V GDZ30A DO35 WILLAS RoHS WILLAS 1 ZD880 160 411130930010 R ZENER 30V GDZ30A DO35 PANJIT RoHS PANJIT 0 170 491731400100 R PCB P I 1 OSP CEM1 16 LP2234 ROHS HSIANGKUO TATCHUN 1 180 430405000000 R JMPR ROLL KG D 0 6mm AT RoHS 7 5MM HOTRON YUANYE 50 J4 180 430405000000 R JMPR ROLL KG D 0 6mm AT RoHS 7 5MM HOTRON YUANYE 0 190 430405000000 R JMPR ROLL KG D...

Страница 50: ...EO 4 C1 C15 C16 C17 20 419311054070 R C SMD 0805 X7R 1uF 16V K RoHS REV A DARFON MURATA TAIYO TDK WALSIN YA GEO 1 C2 40 419311020060 R C SMD 0603 X7R 1000PF 50V K RoHS DARFON TDK WALSIN YAGEO 2 C4 C5 50 419311030060 R C SMD 0603 X7R 0 01uF 50V K RoHS DARFON TDK WALSIN YAGEO 1 C11 60 419312230060 R C SMD 0603 X7R 0 022uF 50V K RoHS DARFON TDK WALSIN YAGEO 2 C6 C14 70 419302210560 R C SMD 0603 NPO 2...

Страница 51: ...MURATA TAIYO TDK WALSIN YAGEO 1 C3 290 511130002200 R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 ROHS TOMAS 0 35 290 511130002201 R SOLDER PASTE Sn96 5 Ag3 0 Cu0 5 TOMAS 0 290 511130002202 R SOLDER PASTE Sn95 5 Ag3 9 Cu0 6 TAMURA 0 3 PCBA KEYPAD BOM 2E 07 ITEM P N Description Supplier Usage Location Revision 791941500000R PCBA KEYPAD BOARD LP2234 512 ROHS 10 430602680190R SW METAL DOME 180gf 5P ROHS FOXCONN ...

Страница 52: ... 00156 ROL A 140 x 713010000901R ASSY PACK 40STD LE22F4 1 PC A 140 x 713010000900R ASSY PACK 20STD LE22F4 0 PC A 140 x 713010000903R ASSY PACK AIR CARGO 20STD LE22F4 0 PC A 140 x 713010000904R ASSY PACK AIRCARGO 40STD LE22F4 0 PC A 140 x 713010000905R ASSY PACK AIR CARGO 40H LE22F4 0 PC A 20080403 ITEM Phant item P N Description Supplier Usage Un Revision 714079351000R ASSY FINAL B W O SPK LP2234 ...

Страница 53: ...LET L1284xW914xH120mm LE1746 實習工廠 0 PC B 20 506037009500R CARDBOARD COVER L1192xW898xH100xT3mm LE2 佳藝美盈森 0 PC A 30 506039000101R CORNER PAPER 1000x50x50xT3mmLE1711 佳藝金惠 0 PC A 40 506039001400R CORNER PAPER 200x50x50mm ROHS 佳藝金惠 0 PC A 50 506431000300R FILM PE 500mmx900M ROHS 三輝柏興 0 ROL A 60 506120400100R BAG AIR DUNNAGE 2000x1000mmLE1X03 ROHS SISUN 0 PC A 70 506380002612R TAPE WRAPPING TYPE 50...

Страница 54: ...Service Manual 53 Attachment 2 Schematic 1Interface board schematic ...

Страница 55: ...Service Manual 54 ...

Страница 56: ...Service Manual 55 ...

Страница 57: ...Service Manual 56 ...

Страница 58: ...Service Manual 57 ...

Страница 59: ...Service Manual 58 power board schematic ...

Страница 60: ...Service Manual 59 ...

Страница 61: ...Service Manual 60 ...

Страница 62: ...Service Manual 61 Attachment 3 PCB Layout power inverter bd power inverter bd Top Layer ...

Страница 63: ...Service Manual 62 Bottom Layer ...

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