Acer H236HL Service Manual
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Acer H236HL Service Manual

Acer h236hl monitor service guide
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ACER_LCD_H236HL_SM20120924V0
 
 

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  • Page 1 ACER_LCD_H236HL_SM20120924V0    ...
  • Page 2 Contents     Table of Contents Important Safety Notice  ..............................  1   1. Product Specification  ..............................  2   2. OSD Menu ..................................  1 5  3. Exploded Diagram ...............................  2 0  4. Assembly and Disassembly Procedures ........................  2 3  5. Troubleshooting  ................................  3 1  6.

  • Page 3: Important Safety Notice

    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

    2    1. Product Specification 1.1 Scope: LCD LM230WF3-S2E2 LM230WF3-S2E2 is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode.

  • Page 5: Optical Characteristics

    3    Optical Characteristics     Ta=25 °C, V =5.0V, f =60Hz, D =72MHz, Is=100mA Values Parameter Symbol Units Notes Contrast Ratio 1000 Surface Luminance white cd/m  Luminance Variation WHITE Response Time (Gray to Gray) 0.638 0.334 0.309 GREEN Color Coordinates 0.627...

  • Page 6: Test Condition

    4    1.2 General Requirements: 1.2.1 T est Condition: All tests shall be performed under the following conditions, unless otherwise specified. Warm up time > 30 min. AC supply voltage 230V± 5%, 50± 3 Hz 20C  5C Ambient temperature Humidity 65%  20% Display mode...
  • Page 7 5    The LCD monitor will contain a main board and a key board which house the flat panel control logic, brightness control logic and DDC. The adapter will provide AC to DC voltage to drive the main board chips each voltage.
  • Page 8 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 1.5m + 10cm/-0cm. The power cord type is different from regions.The adapter output cable length of 150036mm,voltage is 19v and current is 2.1A.
  • Page 9 7    C. HDMI D. LED backlight Connector Connector: CN803 Pin No. Symbol Description Notes Channel1 Current Feed Back Channel2 Current Feed Back No connection No connection VLED LED Power Supply VLED LED Power Supply No connection No connection No connection Channel3 Current Feed Back...
  • Page 10 8    F. Flat Panel Connector Connector: CN406...
  • Page 11 9    1.3.2 Input Signals: Video Input Signals Range (Analog RGB Signal) Symbol Item M in Horizontal Frequency Vertical Frequency Fclk Pixel Clock Frequency 148.5 High Level Input Low Level Input Video RGB Analog Video Level   1.3.2.1 Video Signal Amplitudes: The video inputs consist of Red, Green and Blue signals each has its own coaxial cable terminated at the monitor.
  • Page 12 2) When OSD menu is in active status, this button will act as EXIT-KEY (EXIT OSD menu). 3) When exit eColor OSD, it will activate the Auto Adjustment function automatically. 6.Empowering 1) Activate OSD First menu when OSD is OFF 2) Trigger the acer eColor Management when first menu is active.  ...
  • Page 13 11    B) Menu Operation: Pressing the MENU button brings up the first level menu. C) OSD Function: Acer e-Color Management Contrast, Brightness, ACM H-position, V-position Clock, Focus OSD position, Timeout Color Select and adjust (warm, cool, user). 15 Language selected (English, Deutsch, French, Spanish, Italian, Hollands, Finnish,Turkish, Polish, Pусский,...
  • Page 14 12    1.3.4.2 Factory Assigned Display Modes:   1.4 Flat Panel: 1.4.1 General Requirements: The panel shall be a FULL HD resolution 23” diagonal TFT-LCD. 1.4.2 Polarizer Hardness: The front polarizer should have hard coating (3H) and anti-glare treatment. 1.4.3 Backlight Requirements: 1.4.3.1 General Requirements: Values Parameter...
  • Page 15 13    intensity (contrast) when contrast voltage is varied. Contrast variation can be achieved through the use of varying gray shade patterns. Polarizer Scratch: When the unit lights, lines appear light (white) with display patterns dark and do not vary in size.
  • Page 16 14    Surface luminance with all white pixels Contrast ratio = --------------------------------------------------------- Surface luminance with all black pixels 1.5.3 Response time: Response time is the time required for the display to transition from black to white (Decay Time, Tr ) and from white to black (Rise Time, Tr The sampling rate is 2,500 sample/sec.
  • Page 17 15    1.7 Mechanical and Packing: Monitor Packed Monitor Width: 531.40mm 613 mm Height: 402.21mm 118 mm Depth: 173.44mm 413mm Weight: 3.55KG 5.1144 KG Dimension (mm):...

  • Page 18: Key Definition

    3) When exit eColor OSD, it will activate the Auto Adjustment function automatically. 6.Empowering 1) Activate OSD First menu when OSD is OFF 2) Trigger the acer eColor Management when first menu is active. 2.2 Function Menu: 1). Display Function Menu while user press any function button.
  • Page 19 17    Picture Setting Information...
  • Page 20 18    2.3.2 Key operation: Key define:  ...
  • Page 21 19        2.4 Acer eColor management: a. Display Acer eColor Management OSD when user press “e” button at Function menu or trigger this function in OSD menu/picture page. b. Layout as following figure:   2.5 OSD Message: Item ...

  • Page 22: Exploded Diagram

    20    3. Exploded Diagram   3.1 Product Exploded Diagram:            ...
  • Page 23 21    Note: The parts information listed below are for reference only, and are subject to change without notice. H236HL Item Description LNT Part No. Acer Part No. bezel A34G3021AEM-1B0100 42.LX1M2.001 PANEL LM230WF3-S2E2 750GMT230W3E21N100 KL.2300W.002 mid-frame ASSEMBLY 705GFACS307 60.LX1M2.005 CABLE...
  • Page 24 22    3.2 Packing Exploded Diagram:...

  • Page 25: Assembly And Disassembly Procedures

    23    4. Assembly and Disassembly Procedures 4.1 Assembly Procedures: Prepare a main board, a mian frame. Assemble every part as the below picture. ① Turn over the main board and Lock screws. ②Turn over the main board and lock the four screws.
  • Page 26 24    Prepare a bezel, a panel and middle frame assy ① Assemble the bezel and panel. ② Insert the FFC cable lower left the panel, then stick the yellow tape as follow ③ Put the middle frame assy in front of the panel ④...
  • Page 27 25    Connect FFC cable and fix Mainboard: ① Put the Key board in front of the key and connect ② Connect all kind of cables as follow the FFC cable Connect to Speaker Speaker ③ Put the mainframe along the mark Marked 22 and 23 Align to 23 Align to 3...
  • Page 28 26    Prepare a Stand, a Hinge and a Base ① Put the hinge into the slot Base assy Assemble the stand ass’y and the base...

  • Page 29: Disassembly

    27    4.2 Disassembly procedures: Put the monitor on a protective cushion. ① Unscrew the screw as the below picture ② Pull out the stand ass’y. Unscrew the two screws and then open all latches with tool. Remove the rear cover.
  • Page 30 28    Tear out all tapes on the main frame,and romove the main frame,key board and the speaker.
  • Page 31 29    Remove out the panel、bezel、middle frame. ①Uscrew the nine screws in front of the middle frame ② Disconnect two cables...
  • Page 32 30    Separate the main board and I/O Bracket. ① Turn over the main board and unscrew the four ②Turn over the main board and unscrew the two screws. screws.

  • Page 33: Troubleshooting

    31    5. Troubleshooting 1. No Power No power Check power cable is Re-plug the power cable or tightened or adapter is replace the adapter 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 34 32    2. No Video (Power LED Blue) No Video (Power LED Blue) Press the power Replace the main board button is OK? Check the main board Re-plug the cable and connection Replace the LVDS/FFC Check the LVDS/FFC cable or panel cable or panel Replace the key board...
  • Page 35 33    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 check “Self Test Feature and the PC...
  • Page 36 34    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 color display is normal? Replace the signal cable or PC...
  • Page 37 35    Firmwar re Upgrad de Proce he SOP as be elow apply t to the mode el H236HL Material ls list P JIG: 715GT T089-B/C VGA cable TPV P/N N: 089G728 GAA DB onitor USB cable TPV P P/N: 089G17...
  • Page 38 36    6.2 Connection 6.3 Install USB driver. 6.3.1 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 39 37    Click “Finish” to complete USB serial port driver installation.
  • Page 40   Install th he ISP tool. 4.1 Copy ISP P tool in one folder. 4.2 Double- -click to install the ISP tool. .
  • Page 41 39    4.3 Double- - click to o run the ISP P tool and co o mplete as th he following s steps...
  • Page 42   6.4 4.5 Load th h e F/W you w w ant to upgra ade.
  • Page 43 41    6.5 Check the firmware version. S1. Connect VGA source to monitor and turn it on. S2. Pressing “e” and power on, when the screen lights, release the key and press “MENU” again to open the menu with “F” and select “F” to open factory menu. Check this F/W version.
  • Page 44 42    6 . 6 Troubleshooting. 6.6.1 Can’t Entry ISP Mode!! (1) Check the cables and ISP JIG are connected fluently. (2) Click the usb driver installed correct. (3) AC off the monitor for a while and retry it. (4) Change ISP JIG or cable. (5) Change PC.

  • Page 45: Writing Edid Process

    43    7. Writing EDID Process The SOP as below apply to the model H236HL Analog+DVI+HDMI 7.1 Test Environment Preparation: Hardware and Software Required: - LPT cable(male to male) - VGA cable -12V DC adapter - ISP Board: 715GT034-B - PC...
  • Page 46   Monitor   LPT port d driver ISP tool: TP PVDDC2010 00901.exe EDID      ...
  • Page 47 S2. Prepare the EDID written. Change the EDID files name as below rule. Anolog EDID wA.dat DVI EDID wD.dat HDMI2 EDID wH.dat S3. Copy WA.dat to one folder named as ACER S230WL which must contains “config.ini” file. S4. Copy ACER S230WL to DDC folder and put DDC and ISP tool together.
  • Page 48 S5. Double-click the icon to open the tool. S6. Click “Loadfile” to set the parameters. Click “Analog”, “HDMI1” and “HDMI2”, Manufacturer: ACR, Product Code: 02D7,Model Name: ACER S230HL. 1                       ...
  • Page 49 47      S7. Select the EDID folder as the below picture.   S8. Load EDID successful.                        ...
  • Page 50 48    S9. Check the Only connect HDMI” and “Write SN”, and type in the 22 digit S/N which must be the same as S/N in the monitor’s barcode. 1  2  S10. Click “Program” to start writing. When the green “PASS” appear, the process is finished.
  • Page 51 49    7.4 Check the S/N. S1. Press “MENU” key —“ ”— “Information”—“SN” in user mode. 7.5 Q&A S1. If can’t write! You could try to restart the monitor (AC on the monitor and turn on it). S2. If can’t write! Take apart the monitor and connect the 7pin of EEPROM to GND to diable write protection then write EDID one by one.
  • Page 52 NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly , or follow the rules set by your regional Acer office on how to return it.
  • Page 53 51    STAND ASSY 705GFACS308 60.LX1M2.002 CONVERSION CBPCCT7ABQD 55.LX1M2.001 G5757-M0B-000-0040-2-120717 Mainframe A15G1793201 33.D2GM2.001 rearcover A34G3022AEMA3B0100 60.LX1M2.001 STAND ASSY 705GFACS308 60.LX1M2.002...

  • Page 54: Schematics And Layouts

    52    9. Schematics and Layouts 9.1 Schematics Main Board 715G5757M0D000004L CN101 D-SUB 15P VGA_CABLE_DET VGA_CABLE_DET 6 VGA_5V DDCSCL1 DDCSCL_A DET_VGA R101 DDCSCL1 47R 1/16W 5% VGA_5V VSIN0 BIN0- HSIN0 BIN0 R103 R104 C102 GIN0- ZD101 BIN0 0R05 1/16W 5R6 1/16W 5% DDCSDA1 DDCSDA_A GIN0...
  • Page 55 53    CN201 HDMI HD2+ R213 0R05 1/16W HDMI1_D2+ 6 D2 Shield HD2- R214 0R05 1/16W HDMI1_D2- 6 HD1+ R215 0R05 1/16W HDMI1_D1+ 6 D1 Shield HD1- R216 0R05 1/16W HDMI1_D1- 6 HD0+ R217 0R05 1/16W HDMI1_D0+ 6 D0 Shield HD0- R218 0R05 1/16W...
  • Page 56 54    PA[0..9] PB[0..9] CONN PA[0..9] PB[0..9] LVB3P LVA3P LVB3M LVA3M LVBCKP LVB0M RXO0- LVACKP LVBCKM LVB0P RXO0+ LVACKM LVB2P LVB1M RXO1- LVA2P LVB2M LVB1P RXO1+ LVA2M LVB1P LVB2M RXO2- LVA1P LVB1M LVB2P RXO2+ LVA1M LVB0P LVA0P LVB0M LVBCKM RXOC- LVA0M LVBCKP RXOC+...
  • Page 57 55    +19V +19V 8,10 120OHM L801 D801 2011/ 9/ 28 FB801 47UH C811 BR310 C816 C817 C810 R801 U801 NC/4.7uF 25V 100N 50V 10 OHM 1/4W MP3389EF C803 C813 4.7uF 25V R811 C807 C801 0.47uF 16V 150R 1/10W 5% Q806 VFAULT C805...

  • Page 58: Key Board

    0.65 V ECOLOR (GND) T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Acer S236HL key pad TPV MODEL 絬 隔 瓜 絪 腹 acer Key Component 02.KEY PCB NAME < > 称爹 称爹...
  • Page 59 57    9.2 Layouts Main Board 715G5757M0D000004L Key Board 715G5673K01000004Q  ...

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