Acer LCD MB243WABNS Manuale Utente

Table of ContentsImportant Safety Notice------------------------------------------------------------------------------------- 0101. Product Specificat

2. OSD Manu (continued)9Go to cover pageACER G24

3.1 Packing Exploded Diagram3. Exploded Diagram10Go to cover pageACER G24

3.2 Product Exploded Diagram3. Exploded Diagram (continued)11Go to cover pageACER G24

S4S6S5S3S2S1Use a Phillips-head screwdriver screwed theNo.1~4 screws till that interface board and bracketchassis base firmly attached.(No1~4 screw si

Plug 6 lamp cables to the connectors of inverterboard.Take lamp cables out from the holes shown as thephoto.Turn the monitor faced down and put it on

Assemble the stand upper side to the rear coverthrough the way of screwing 4 screws till bothunits firmly attached.(No1~4 Screw Size=M4x10;Torque=13KG

Move previous assembled parts into the carton thenstick Vista and feature label on the carton thenpacking the cartonPut accessories of stand, DVI cabl

Use a Phillips-head screwdriver unscrew 4 screwsto release the stand base.(No1~4 Screw Size=M4x10;Torque=13 KGFxCM).±1Disassemble the stand cover.Put

Put the dissembled monitor closed to by myselfUnhook the key function board from front bezel,disconnect the key function cableS8S10S94. Assembly and D

Take out lamp cables right through the No.1-3square holes and separate the bracket chassismodule and LCD panel apart.Unplug 6 lamp cablesUse a Phillip

Product Anouncement:This product is certificated to meet RoHS Directive andLead-Free produced definition. Using approved criticalcomponents only is re

Use a Phillips-head screwdriver unscrewed theNo.1~5 screws to disassemble the power board.(No 1~4 screw size=M3x6; No 5 screwsize=M4x8; Torque=9~10KGF

5. TroubleshootingDoes OSM display upon pressingthe “MENU” button?Check if the sync signal outputfrom connected computer and thevideo cable is connect

5. Troubleshooting (continued)5.2 Nothing displays on the screen (Screen is black and colour of LED is blue.)Check if the backlight isslightly lighten

5. Troubleshooting (continued)5.3 Check the backlight unitCheck the BKLT_EN signal ofrectangle input P301 pin11 at TTLhigh level.Check the PWM signals

5. Troubleshooting (continued)5.4 Abnormal Screen:Check R.G.B video signalsoutput from PC hostto D-Sub R.G.B connectorCheck the R.G.B signalson I314 p

5. Troubleshooting (continued)5.5 Abnormal OSM display - OSD Adjusment ProblemCheck the input TTL levelwhether if it was altered uponpressing the func

5. Troubleshooting (continued)5.6 Abnormal Plug and Play Operation5.6.1 Abnormal DDC2 (D-SUB)5.6.2 Abnormal DDC2 (DVI)Confirm the output of serialdata

5. Troubleshooting (continued)5.7 Checking the interface circuit of sync signal5.7.1 Checking the control circuit of horizontal sync pulse5.7.2 Checki

5.8 Checking the resolution change IC movementIs there +3.3VSuppliedonI314pin107,pin48, pin61, pin250, pin12, pin70,pin170, pin184, pin203, pin216,pin

5.9 Checking the DC/DC converter circuitCheck if the 5V is outputfrom P301 pin1, pin2, pin3, pin4to I301, I303, I320 pin3.Check if the 3.3V, 2.5Vand 1

1.1 SCOPEThis document defines the design and performancerequirements for a 24W inch diagonal , flat panel monitor.The display element shall be a WUXG

5.10 Checking the inverter board circuitDoes 22V output pinhave voltage around 20V?Does On/Off pin have voltage over 3V?Does brightness pin have volta

Check the TMDS signalfrom computer input onHDMI connectorCheck the TMDS signal ofI322OK1.Check the host PC to see if there’s no TMDSsignal output2.HDM

Mstar ISP Utility Configuration:Launch the utility of “ISP_Tool Winbond 0315.exe”S2. Press [Connect] button.There s a Dialog window shown on the scree

Press [Run] button and waiting for firmware upgradecompleted .The screen will show “PASS”21Press [Auto] buttonPress [Read] button.1. Press Read folder

PRINTER PLUGDVI EXTENDINGSOCKETUSB APLUGD-SUB PLUGDVI EXTENDINGSOCKETUSB ASOCKET1 Writing EDID ProcedureHardware Configuration:1.)Connect the PRINTER

4. Choose "WRITE" from menu then select "Scan S/N AndWrite EDID And Test DDC”5. Key in series number(22 characters) in the input column

8.Schematics and Layouts_8.1 SCHEMATICS BLOCK DIAGRAMACER_LCD_G24_PCB No.AnalogVideoInputDSUBScalerMST 9259DFunctionKeyBoardDDC24LC02BDC DC-5v 3 3v-.3

_8.2 SCHEMATICS POWER BOARDACER_LCD_G24_PCB No.6832194100P0124V24VGNDGND20.GNDTO INVON OFF-24VGNDBRI52V.5V RTN-52V.BRI52V.GND52V.52V.GNDON OFF-GNDOFF2

8.3 ACER __LCD_G24 SCHEMATICS_INTERFACE_BD_POWER6832194600P0PCB No.SOT 223-TO 263-TO 252 GOI--TO 263-HI POWER ON==>SOT 223-FOR POWER SAVING CONTROL

_8.4 SCHEMATICS INTERFACE_BD_MCU AND FUNCTION KEYACER_LCD_G24_PCB No.LED B ACTIVE LOW_LED A ACTIVE LOW_PLUSMINUSSELECTPOWERMENUGNDA12A13A14WEPSENA1A2A

1. Product Specification (continued)1.3.2 Video Input Signals1.3.2.1 Video Signal AmplitudesThe three video inputs consist of Red ,Green , and Bluesig

_8.5 INTERFACE_BD_ACER_LCD_G24 SCHEMATICS_ VGA INPUTPCB No.DSUBConnectorVGA RX_VGA TX_DDC WP_+_5V VGA+_5V VGABLUEGREENREDDSUB SCL-DSUB SDA-VGA TX_VGA

_8.6 INTERFACE_BD_HDMI AND DVI INPUTACER_LCD_G24 SCHEMATICS_PCB No.DVI HDMI SW 1 the voltage__=,level must 3 3V 2V<= . & >0 DVI INPUT 1 HDMI

_8.7 INTERFACE_BD_SCALERACER_LCD_G24 SCHEMATICS_PCB No.FPC FFC 30S 100C---LVA0PLVACKPLVA1PLVA2MAD0MDATA20WRAR8MDATA18MDATA19MDATA7MDATA14DQS0MDATA1MDA

_8.8 SCHEMATICS INTERFACE_BD_SDRAMACER_LCD_G24_PCB No.MDATA 22_MDATA 3_MDATA1MDATA23MDATA28MDATA 19_DM1DQS 1_MDATA20MDATA16MDATA6MDATA4MDATA24MDATA17M

_8.9 SCHEMATICS INTERFACE_BD_USB AND CAM/MIC OUTPUTACER_LCD_G24_GNDDD1MGNDDD2MDD2PVBUS4DP1DN1VBUS3VBUS1DD1PGNDDIAG LOOP_SOT 223-USB2512USB2514USB2512D

_8.10 SCHEMATICS INTERFACE BD _AUDIO LINE OUTACER_LCD_G24_PCB No.HDMI AUDIO CODEC deleted for(P243W HDMI model)HDMI LEFT_HDMI RIGHT_AUWS6AUSD6AUSCK6AU

_8.11 SCHEMATICS INVERTER BDACER_LCD_G24_PCB No.6832188000P0ON OFF-BRI120608050805120606030603060306030603060306030603080506030603060308051206GNDGNDGN

_8.12 SCHEMATICS FUNCTION _KEYACER_LCD_G24_PCB No.6832194800P0LEDORANGELEDBLUEMenu KEYPOWERMENUEMINUSSELECTPLUSLED AMBER_LED BLUE_C606 0 1u.S605Auto e

8.13 ACER_LCD_G24 LAYOUTS_POWER BOARD_POWER BOARD - BOTTOM SILKPOWER BOARD - TOP SILK1234567 89101112131234567 8910111213ABCDEFGABCDEFGPCB No.Go to co

8.14 ACER_LCD_G24 LAYOUTS_INTERFACE BOARD_PCB No.1234567 89101112131234567 8910111213ABCDEFGABCDEFGGo to cover page48ACER G24

1.3.2.6 Abnormal Signal ImmunityThe monitor shall not be damaged by improper synctiming , pulse duration , or absence of sync , orabnormal input signa

8.15 ACER_LCD_G24 LAYOUTS_FUNCTION KEY BOARD_PCB No.1234567 89101112131234567 8910111213ABCDEFGABCDEFGGo to cover page49ACER G24

8.16 ACER_LCD_G24 LAYOUTS_INVERTER BOARD_PCB No.1234567 89101112131234567 8910111213ABCDEFGABCDEFGGo to cover page50ACER G24

1.3.5 Controller Requirements1.3.5.1 General RequirementsThe monitor shall include a controller capable ofconverting the analog RGB signal from a stan

1.3.8 Display Communications ChannelThe monitor assembly shall provide a displaycommunications channel that conforms to VESADDC2Bi hardware requiremen

1.4.5.5 Defect TerminologyTable 3 gives the descriptive terms used in classifyingdefects.1.5 Optical CharacteristicsDepends on the LCD supplier's

2.1 MAIN OSD MENUOutline:The description for control function:2 OSD MenuGo to cover page8ACER G24