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Acer B223PWL Service Manual
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Acer B223PWL Service Manual

Acer B223PWL Service Manual

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ACER_LCD_B223PWL_V223PWL_SM20120424V0
 
 

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  • Page 1 All manuals and user guides at all-guides.com   ACER_LCD_B223PWL_V223PWL_SM20120424V0    ...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com   Contents     Table of Contents Important Safety Notice ..........................1 1. Product Specification ..........................2 2. OSD Menu ............................16 3. Exploded Diagram ..........................20 4. Assembly and Disassembly Procedures ....................24 5.

  • Page 3: Important Safety Notice

    All manuals and user guides at all-guides.com 1    Important Safety Notice Product Announcement: This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved critical components only is recommended when the situation to replace defective parts. Vender assumes no liability express or implied, arising out of any unauthorized modification of design or replacing non-RoHS parts.

  • Page 4: Product Specification

    All manuals and user guides at all-guides.com 2    1. Product Specification 1.1 Scope: The M220ZGE-L20 model is a 22 inch wide TFT-LCD slimming module with a WLED light bar Backlight Unit and a 30-pin 2ch-LVDS interface. This module supports 1680 x 1050 WSXGA+ (16:10 wide screen) mode and displays up to 16.7 millions colors.
  • Page 5 All manuals and user guides at all-guides.com 3     ...
  • Page 6 All manuals and user guides at all-guides.com 4     ...
  • Page 7 All manuals and user guides at all-guides.com 5    1.2 General Requirements: 1.2.1 T est Condition: All tests must be performed under “standard testing conditions” unless otherwise specified. Warm up time > 30 min. AC supply voltage 230V± 5%, 50± 3 Hz 20C ...
  • Page 8 All manuals and user guides at all-guides.com 6    1.3.1 Interface Connectors:   1.3.1.1 Power Adaptor and Connector: The AC inlet connector shall be an IEC 320-C13 male power receptacle for connection to mains power. The power cord shall be gray or black with length of 1.8m + 10cm/-0cm. The power cord type is worldwide type.
  • Page 9 All manuals and user guides at all-guides.com 7    C. Power Board Connector Power connector: CN902   Signal   MUTE     USB_CTRL   ON/OFF           D. Key Board Connector Connector: CN001 Signal LBADC1 LBADC2 POWER Key LED_BLUE# LED_RED# E.
  • Page 10 All manuals and user guides at all-guides.com 8    1.3.2 Input Signals: Video Input Signals Range (Analog RGB Signal) Symbol Item M in Unit Horizontal Frequency Vertical Frequency Fclk Pixel Clock Frequency 148.5 High Level Input Low Level Input Video RGB Analog Video Level  ...
  • Page 11 All manuals and user guides at all-guides.com 9    1.3.3.3 On-Screen Display: On Screen Display system shall be used to control the monitor. Current setting will be saved and OSD will be tuned off when the keys are not touched for a period of time. A) Key Function Overview: All functions are controlled by OSD buttons on the front of front bezel.
  • Page 12 B) Menu Operation: When press “Menu” button from Front Bezel, user need to select which kind of function Menu he need to open A. Acer eColor Management: If “Acer eColor Management” is selected, the Acer eColor management OSD will appear.
  • Page 13 All manuals and user guides at all-guides.com 11    D) OSD Control Factory Default Values: eColor mode Standard Brightness Contrast Color Warm Language English OSD H.pos OSD V.pos OSD Timeout DDC/CI User R/G/B 50/50/50 Volume 1.3.4 Monitor Modes and Timing Capability: 1.3.4.1 Format and Timing: The monitor shall synchronize with any vertical frequency from 55 to 75 Hz, and with any horizontal frequency from 30 to 80 KHz.
  • Page 14 All manuals and user guides at all-guides.com 12    1.4 Flat Panel: 1.4.1 General Requirements: The panel shall be a 609.7mm (22”W) a-si TFT Active matrix LCD. 1.4.2 Polarizer Hardness: The front polarizer should have hard coating (2..3H) and anti-glare treatment. 1.4.3 Backlight Requirements: 1.4.3.1 General Requirements: 1.4.4 Defects:...
  • Page 15 All manuals and user guides at all-guides.com 13    Dim Line: When the unit lights, line(s) in the minor (vertical) or major (horizontal) axis appear dim, but not completely on or off. Cross Lines Off: When the unit lights , lines in both the minor and major axis do not appear. Bright/Dark Dot: A sub - pixel (R, G, B dot) stuck off / on (electrical).
  • Page 16 All manuals and user guides at all-guides.com 14    1.5.3 Contrast ratio is measured by TOPCON SR-3 1.5.4 Definition of Response time measured by Westar TRD-100A The output signals of photo detector are measured when the input signals are changed from “Full Black” to “Full White”...
  • Page 17 All manuals and user guides at all-guides.com 15    1.7 Mechanical and Packing: Monitor Packed Monitor Width: 506mm Height: 333-358mm Depth: 65mm Weight: 7.2kg Dimension (mm):     B223PWL   V223PWL...

  • Page 18: Osd Menu

    All manuals and user guides at all-guides.com 16    2. OSD Menu 2.1 Key Definition: 1. Power LED Lights up to indicate the power is turned on. 2. Power Switch Turn the power on or off. 3.4.< / > Press < or > to navigate to the desired function, press Enter to select the function. Press <...
  • Page 19 All manuals and user guides at all-guides.com 17    A. Acer eColor Management: If "Acer eColor Management" is selected, the Acer eColor Management OSD will appear. B.USER: If "User" is selected, the standard OSD will appear.   Operation instructions 1 Press the Empowering Key to open the Acer eColor Management OSD and access the scenario modes.
  • Page 20 All manuals and user guides at all-guides.com 18    Features and benefits       2.4 Acer eColor management: a. If selected to “Acer eColor Management” item, will appear the Acer eColor OSD b. USER: If “USER” item is selected, the standard OSD will appear...
  • Page 21 All manuals and user guides at all-guides.com 19   ...

  • Page 22: Exploded Diagram

    3.1 Product Exploded Diagram: B223PWL   Note: The parts information listed below are for reference only, and are subject to change without notice. Item Description TPV PART NO. Acer Part No. A34G0721BBNI1B0130 BEZEL A33G0378 1 1C0100 LENS_POWER A33G0379BBN 1L0100 KEY_FUNCTION...
  • Page 23 21    V223PWL   Note: The parts information listed below are for reference only, and are subject to change without notice. Item Description TPV PART NO. Acer Part No. A34G0721AEMM1B0130 BEZEL A33G0378 1 1C0100 LENS_POWER A33G0379AEM 1L0100 KEY_FUNCTION Q15G1166104 MAINFRAME 33.LW8M2.001...
  • Page 24 0M1G1740 10120 SCREW(STAND/ HINGE) 0M1G 330 4120 SCREW(MAINFRAME/ MAIN BOARD) Q01G6019 2 SCREW (BEZEL/ KEY BOARD)   3.2 Packing Exploded Diagram: B223PWL ITEM DESCRIPTION QT'S CARTON EPS-1 EPS-2 EPE BAG FOR MONITROT HEAR OF MONITOR PE BAG FOR BASE BASE...
  • Page 25 All manuals and user guides at all-guides.com 23    V223PWL   ITEM DESCRIPTION QT'S CARTON EPS-1 EPS-2 EPE BAG FOR MONITROT HEAR OF MONITOR PE BAG FOR BASE BASE FILM DVI CABLE POWER CABLE SIGNAL CABLE WARRANTY CARD 14 QSG DP CABLE  ...

  • Page 26: Assembly And Disassembly Procedures

    24    4. Assembly and Disassembly Procedures 4.1 Assembly Procedures for B223PWL: Prepare a main board, a power board, and some essential cables. Connect every cable as the below picture Prepare a speaker and a MAINFRAME. And then assemble speaker to MAINFRAME. Put the cable through the hole as below picture remarked in yellow circle.
  • Page 27 All manuals and user guides at all-guides.com 25    Locate the key board cable and fix the cable on the specific position as the below picture remarked in red circle. Turn over the MAINFRAME. Use a Hex-head screwdriver to tighten four screws and use a Philips-head screwdriver to unscrew a screw for locking the VGA connector and DVI connector.
  • Page 28 All manuals and user guides at all-guides.com 26    Place the bezel on a protective cushion. Put the key board into the bezel and tighten two screws as the below picture. Put the MAINFRAME and panel on the bezel. Stick the tapes and Connect the key board cable to the key board as below picture.
  • Page 29 All manuals and user guides at all-guides.com 27    Prepare a rear cover to assemble. Prepare a BASE_ASS’Y. Tighten four screws. Put on the assembled units.
  • Page 30 All manuals and user guides at all-guides.com 28    4.2 Disassembly procedures for B223PWL: Remove the assembled units, and then Unscrew four screws to remove the BASE_ASS’Y. Remove the rear cover.. Disconnect the key board cable.
  • Page 31 All manuals and user guides at all-guides.com 29    Remove the bezel. Unscrew the two screws to remove the key board. Lift to move the mainframe a little to tear up the tape and disconnect the FFC cable (main board to panel). Disconnect the wires (power board to panel) as below picture to remove the MAINFRAME away from panel, Use a Philips-head screwdriver to unscrew six screws after turn it over.
  • Page 32 All manuals and user guides at all-guides.com 30    Remove the SHIELD_AUDIO. Use a Hex-head screwdriver to unscrew the screws for VGA connector and DVI connector. Disconnect the speaker cable to remove the main board and power board and main board to key board cable, main board to power board cable.
  • Page 33 All manuals and user guides at all-guides.com 31    4.3 Assembly Procedures for V223PWL: Prepare a main board, a power board, and some essential cables. Connect every cable as the below picture Prepare a speaker and a MAINFRAME. And then assemble speaker to MAINFRAME. Put the cable through the hole as below picture remarked in yellow circle.
  • Page 34 All manuals and user guides at all-guides.com 32    Locate the key board cable and fix the cable on the specific position as the below picture remarked in red circle. Turn over the MAINFRAME. Use a Hex-head screwdriver to tighten four screws and use a Philips-head screwdriver to unscrew a screw for locking the VGA connector and DVI connector.
  • Page 35 All manuals and user guides at all-guides.com 33    Place the bezel on a protective cushion. Put the key board into the bezel and tighten two screws as the below picture. Put the MAINFRAME and panel on the bezel. Stick the tapes and Connect the key board cable to the key board as below picture.
  • Page 36 All manuals and user guides at all-guides.com 34    Prepare a rear cover to assemble. Prepare a BASE_ASS’Y. Tighten four screws. Put on the assembled units.
  • Page 37 All manuals and user guides at all-guides.com 35    4.4 Disassembly procedures for V223PWL: Remove the assembled units, and then unscrew four screws to remove the BASE_ASS’Y. Remove the rear cover.. Disconnect the key board cable. Remove the bezel.
  • Page 38 All manuals and user guides at all-guides.com 36    Unscrew the two screws to remove the key board. Lift to move the mainframe a little to tear up the tape and disconnect the FFC cable (main board to panel). Disconnect the wires (power board to panel) as below picture to remove the MAINFRAME away from panel, Use a Philips-head screwdriver to unscrew six screws after turn it over.
  • Page 39 All manuals and user guides at all-guides.com 37    Disconnect the speaker cable to remove the main board and power board and main board to key board cable ,main board to power board cable. Pull the speaker cable out of the hole remarked red. Remove the speaker away from the MAINFRAME.

  • Page 40: Troubleshooting

    All manuals and user guides at all-guides.com 38    5. Troubleshooting 1. No Power No power Check power cable is Re-plug the power cable tightened? Check Power “On/Off” Turn on the Power “On/Off” switch is “On”? Check the LED Check the AC power indicate is OK? Replace the power board and check connections Replace main board and check connections...
  • Page 41 All manuals and user guides at all-guides.com 39    2. No Video (Power LED Blue) No Video (Power LED Blue) Press the power Replace the main board button is OK? Replace the power The end board and connection Replace the main The end board and connection Replace the LVDS/FFC...
  • Page 42 All manuals and user guides at all-guides.com 40    3. DIM DIM (image overlap, focus or flicker) Reset in factory mode The end Set to the optimal The end frequency, select the recommended frequency Readjust the phase and pixel The end clock in the user mode Pull out signal cable and Check the signal cable...
  • Page 43 All manuals and user guides at all-guides.com 41    4. Color is not optimal Color is not optimal Color shift Miss color Reset the factory mode Replace the signal cable In the user mode, set the” color settings” until customer satisfy The end Pull out the signal cable and check the screen...

  • Page 44: Firmware Upgrade Process

    All manuals and user guides at all-guides.com 42    6. Firmware Upgrade Process Take B243PHL and V243PHL for example 6.1 Test Environment Preparation: Hardware and Software Required: - USB cable - VGA cable - ISP Board: 715GT089-B/C - PC - Monitor - USB port driver - ISP tool - New F/W...
  • Page 45 All manuals and user guides at all-guides.com 43                                    Monitor USB port driver ISP tool   New F/W     6.2 Connection:...
  • Page 46 All manuals and user guides at all-guides.com 44    6.3 Install driver.          S1. If you use thi s ISP board first time, First you need to install mstar driver .       ...
  • Page 47 All manuals and user guides at all-guides.com 45             ...
  • Page 48 All manuals and user guides at all-guides.com 46        S2 When insert the USB cable to PC USB port, will pop up a Hardware Wizard to help you install the USB driver if you  use this ISP board first time. You can install it successfully as the below instruction step by step.  Remark: The USB driver files path: D:\FTC100103(Mstar)\FTCUSB.INF                                ...
  • Page 49 All manuals and user guides at all-guides.com 47                            Click “Finish” to complete the USB serial port driver installation.
  • Page 50 All manuals and user guides at all-guides.com 48    6.4 Install the ISP tool. S1. Copy the three files in one folder.   S2. Double-click to run the ISP tool.     S3. Set the parameters in “Device” window. Tick “WP Pin pull to high during ISP”.  ...
  • Page 51 S5. Load the F/W you want to upgrade.     S6. Set the restore address. (1)If the monitor has DVI or HDMI port, you need to set restore address for HDCP key to avoid re-program HDCP key. “0x03A000”, 4KB for Acer B243PHL.
  • Page 52 All manuals and user guides at all-guides.com 50    (2)If monitor hasn’t DVI or HDMI port, it isn’t necessary to tick “Restore Enable”.   S7.Set parameter in “Auto” window. If you have set “Restore address”, please tick “Restore Data”. S8. Processing of upgrade. After clicking “Run”, the tool start to program. It is forbided to power off monitor or switch off connection during programming.
  • Page 53 All manuals and user guides at all-guides.com 51    Successful upgrade. When upgrade successful, there will be green Pass letter appearing. 6.5 Check the FW version after upgrade. S1. The way to open factory menu. (1) Connect VGA source to monitor and turn it on. (2) The way to factory menu: Pressing “e”...
  • Page 54 All manuals and user guides at all-guides.com 52    6.6 Troubleshooting. S1. Can’t Entry ISP Mode!!     (1) Check the cables and ISP JIG are connected fluently. (2) Click the “Dis Con” and click “Connect” again. (3) AC off the monitor for a while and retry it. (4) Change other vervion ISP program.

  • Page 55: Writing Edid Process

    All manuals and user guides at all-guides.com 53    7. Writing EDID Process Take B243PHL and V243PHL for example   7.1 Test Environment Preparation: Hardware and Software Required: - LPT cable(male to male) - VGA cable x 2 -12V DC adapter - ISP Board: 715GT034-B - PC - Monitor...
  • Page 56 All manuals and user guides at all-guides.com 54      Monitor   LPT port driver ISP tool: VgaSinglePort.exe EDID...
  • Page 57 S2. Restart PC after installation. S3. Change the EDID files name as below rule. Anolog EDID WA.dat Digital EDID WD.dat Displayport EDID WP.dat S4. Copy these four files to one folder named as ACER B243PHL and ACER V243PHL which must contains “config.ini” file.
  • Page 58 All manuals and user guides at all-guides.com 56    S5.Copy ACER B243PHL and ACER V243PHL to DDC folder and put DDC and ISP tool together. S6. Run the ISP tool. S7.Double-click the icon to open the tool.   S8.Tick the “Analog+DVI” and click “Loadfile” to set the parameters.
  • Page 59 All manuals and user guides at all-guides.com 57    S9. Select the EDID folder. Select ACER B243PHL and ACER V243PHL. S10.LOad EDID successful. In the EDID tool, you can know the EDID information.   S11.Tick the “Only connect VGA” and “Write SN”, and type in the 22 digit S/N.
  • Page 60 All manuals and user guides at all-guides.com 58    S12.Start writing. Click “Program” to start writing. When the green “PASS” appear, the process is finished. S13. Check the S/N in monitor user menu. Press “MENU” and select “Information”—“SN”, you can check the SN. 7.4 Troubleshooting.

  • Page 61: Fru (Field Replaceable Unit) List

    DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines.
  • Page 62 All manuals and user guides at all-guides.com 60    panel 750GBM220ZGK12N000 KL.2200D.001 FFC-CABLE-30P- 089G179W30N-27 50.LG80B.001 220mm-P1.0 AUDIO CABLE 089G 17356X553 50.L730B.006 1800MM SIGNAL CABLE 089G 728GAA DB 50.LAN0B.002 SIGNAL CABLE 089G1748GAA AC 50.LAN0B.003 DVI GREATLAND...
  • Page 63   HARNESS 6P(2008)-6P(1253 395G801406WJ67 50.LW8M2.001 HARNESS 6P(2008)-6P(CI14 095G8022-6XE06 50.LTU0B.001 06)-200mm POWER CORD TYPE D 1800MM 089G404A18N YH 50.LG80B.002 BLACK (EUROPE) 705GQCCS034085 60.LW8M2.002 (for B223PWL) FRONT BEZEL ASSY 705GQCCS034086 60.LWBM2.002 (for V223PWL) Q34G7417AEMAZB0130 60.LW8M2.001 (for B223PWL) REAR_COVER Q34G7417AEMAYB0100 60.LWBM2.001 (for V223PWL)
  • Page 64 All manuals and user guides at all-guides.com 62    Q37G0085018 B1(for 60.LRQM2.003 B223PWL) BASE_ASS’Y 705GQCCS034068(for 60.LRRM2.004 V223PWL) MAINFRAME Q15G1166104 33.LW8M2.001 A33G0381AEM 1L0100 42.LBT0B.001 Cover Hinge A33G0382AEM 1L0100 42.LC20B.001 SPK-8OHM- 2W-40X20X18-350 078G-518501-Y 23.LG10B.001 -320MM-SUNLINK...

  • Page 65: Schematics And Layouts

    All manuals and user guides at all-guides.com 63    9. Schematics and Layouts 9.1 Schematics Main Board 715G3361 PA[0..9] VLCD PA[0..9] PA[0..9] PB[0..9] GNDR GNDR PB[0..9] PB[0..9] VLCD GNDG GNDG GNDB GNDB 5.PANEL INTERFACE HSY NC HSY NC VSY NC VSY NC DDCA_SDA DDCA_SDA...
  • Page 66 All manuals and user guides at all-guides.com 64    R704 4.7 OHM +-5% 2WS VCC3.3 C707 R701 100N16V 4,5,6 R709 NC/100R 1/16W 5% R702 PW_SWITCH C700 C701 100R Adj_BACKLIGHT 5 PW_SWITCH CN700 100N16V 100UF16V Q704 CONN NC/AO3401 C710 VCC1.2 VCC3.3 VCC3.3 VCC1.2 R706...
  • Page 67 All manuals and user guides at all-guides.com 65    CN100 DB15 RED+ FB101 BEAD R101 56R 1/16W 5% C101 47N16V RED- PC5V GREEN+ FB102 BEAD R102 56R 1/16W 5% C102 47N16V GREEN- BLUE+ FB103 BEAD R103 56R 1/16W 5% C103 47N16V BLUE- U101 D102...
  • Page 68 All manuals and user guides at all-guides.com 66    VDDC VDDP AVDD12 AVDD_DP AVDD_ADC VCC1.2 FB401 VDDC AVDD_DAC VCC3.3 FB404 AVDD_DAC VCC1.2 VCC3.3 600R 600 OHM C401 C402 C403 C404 C405 C412 10UF50V C411 10UF50V 100N16V 100N16V 100N16V 100N16V 100N16V RIN0P GNDR RIN0M...
  • Page 69 All manuals and user guides at all-guides.com 67    CN400 NC/CONN CN401 CONN PA[0..9] PA[0..9] LVA3P LVB0M RXO0- RXO0+ LVB0P LVB0M RXO0- LVA3M LVB1M RXO1- RXO1+ LVB1P LVB0P RXO0+ LVACKP LVB2M RXO2- RXO2+ LVB2P LVB1M RXO1- LVACKM LVBCKM RXOC- RXOC+ LVBCKP LVB1P RXO1+...
  • Page 70 All manuals and user guides at all-guides.com 68    U500 U501 AZ1045-04QU.RDG AZ1045-04QU.RDG Line-1 Line-1 Line-2 Line-2 Line-3 Line-3 Line-4 Line-4 CN500 候綼U500 SHELL1 候綼U501 綼　SCALER狠 SHELL3 DPRX-N3 R501 DP_RXN3N ML_ Lane 3(n) DPRX-P3 R502 0.05R DP_RXN3P 0.05R ML_ Lane 3(p) DPRX-N2 R503 DP_RXN2N...
  • Page 71 All manuals and user guides at all-guides.com 69    R601 AUDIO PC Line I/P 0.05R I2S_R LINE_OUT_2R CN600 C602 FB600 R600 2.2U10V 0R05OHM1/8W 10K+-5%1/16W C603 R602 10/22 LINE_IN_0R 10N 16V 22K 1/16W C604 C600 R603 680P 50V X7R +/-10% 100pF 50V 10K+-5%1/16W C Placement NearIC PHONEJACK...
  • Page 72 All manuals and user guides at all-guides.com 70    VCC3.3 CN404 NC/CONN R457 R458 LED_A VCC3.3 LED_G POWER_KEY # KEY 2 R450 R451 R452 3.9K 1% 3.9K 1% 3.9K 1% KEY 1 CN402 KEY1 R453 NC/1K 1/16W 5% KEY2 R454 NC/1K 1/16W 5% POWER_KEY # 10/27...
  • Page 73 All manuals and user guides at all-guides.com 71    Power Board 715G3350P02005001S R918 100 OHM 1/4W F904 FB902 L904 R919 C912 C911 100 OHM 1/4W +14V 3.5uH 0.0022uF 0.0022uF R920 BEAD R941 FUSE 100 OHM 1/4W ZD902 R905 470 OHM 2W C905 MTZJ T-72 18B R951...
  • Page 74 All manuals and user guides at all-guides.com 72    +5V_Audio FB602 +5V_Audio BEAD FB601 C602 BEAD 100uF25V R608 0R05 1/8W CN602 U601 C607 R607 12K 1/8W CN601 0.47uF/25V C606 R606 12K 1/8W LOUT+ 0.47uF/25V LIN+ LOUT+ LOUT- PHONEJACK ROUT+ C617 88A302-29C LIN- LOUT-...
  • Page 75 All manuals and user guides at all-guides.com 73    Converter Board 715G4013P03001004S +14.5V D801 F801 L801 0R05 4A 1/4W 47uH C810 C809 0.47uF 50V 100uF 50V BR310 ON/OFF U801 C803 Q806 0.22uF 50V MP3389EF C807 NC/Q801 CN801 VFAULT AOD482 4.7UF 100V Gate R805 R801...
  • Page 76 VOL- VOL+ POWER T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size acer B and V key pad G2944-A-X-X-1-071122 TPV MODEL 絬 隔 瓜 絪 腹 acer Key Component 02.KEY PCB NAME 715G2944-A <称爹>...
  • Page 77 All manuals and user guides at all-guides.com 75    9.2 Layout Main Board 715G3361 2...
  • Page 78 All manuals and user guides at all-guides.com 76   ...
  • Page 79 All manuals and user guides at all-guides.com 77       ...
  • Page 80 All manuals and user guides at all-guides.com 78     ...
  • Page 81 All manuals and user guides at all-guides.com 79    Power Board 715G3350P02005001S...
  • Page 82 All manuals and user guides at all-guides.com 80   ...
  • Page 83 All manuals and user guides at all-guides.com 81   ...
  • Page 84 All manuals and user guides at all-guides.com 82    Converter Board 715G4013P03001004S...
  • Page 85 All manuals and user guides at all-guides.com 83   ...
  • Page 86 All manuals and user guides at all-guides.com 84    Key Board 715G2944 3        ...

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