Acer AL1512sg Service Manual Download Page 38

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5.3.5 JP1 Pin assignment

Pin No.

Symbol

Description

1 GRAI

RED

INPUT

2 GGAI

GREEN

INPUT

3 GBAI

BLUE

INPUT

4 NC

5 GND

GROUND

RGND

RED INPUT GROUND

GGND

GREEN INPUT GROUND

BGND

BLUE INPUT GROUND

9 VGA_5V

VGA

INPUT

10 GND_ANA

GROUND

11 NC

12 DSUB-SDA

I2C

13 G_HSYNC

H-SYNC

14 G_VSYNC

V-SYNC

15 DSUB_SCL

I2C

Summary of Contents for AL1512sg

Page 1: ...Acer AL1512 Service Guide Service guide files and updates are available on the CSD web for more information Please refer to http csd acer com tw ...

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Page 7: ...Saver 19 Chapter 3 Machine Disassembly and Assembly 20 3 1 Machine Disassembly 20 3 2 Machine Assembly 23 Chapter 4 Troubleshooting 27 4 1 Abnormal display Troubleshooting 27 4 2 Abnormal On Off LCD Display K B Troubleshooting 29 4 3 Abnormal BIOS OSD Other Display Troubleshooting 30 4 4 Audio Abnormal 31 Chapter 5 Connector Information 32 5 1 Function Block Diagram 32 5 2 Connector Location 33 5 ...

Page 8: ...lor temperature With OSD setting Measuring instrument Topcon luminance colorimeter BM 5A or equivalent Others Before measuring Auto Config Auto Balance must be done in advance 1 2 Features 15 XGA TFT LCD Panel TN Mode Liquid Crystal D SUB Input Audio Function Optional Support to 75Hz Refresh Rate Support VESA DCC 2B plug play function Support VESA DPMS Power Management Function Wide Viewing Angle ...

Page 9: ... 6 10 ms Response Time TF 17 25 ms 3 Luminance of center point L θx 0 θY 0 Viewing Normal Angle 250 350 cd m 2 2 4 Luminance Angular dependent LR 1 5 1 7 2 5 Contrast Angular dependent Cm 0 5 0 9 2 6 Brightness Uniformity Uni 1 1 1 3 2 4 Rx 0 603 0 633 0 663 Red Ry 0 322 0 352 0 382 Gx 0 268 0 298 0 328 Green Gy 0 558 0 588 0 618 Bx 0 115 0 145 0 175 Blue By 0 069 0 099 0 129 Wx 0 281 0 311 0 341 ...

Page 10: ...g expression and figure below Contrast Ratio CR L255 L0 L255 Luminance of gray level 255 L 0 Luminance of gray level 0 CR CR 5 CR X is corresponding to the Contrast Ratio of the point X at Figure in Note 5 Definition of luminance measured points and Brightness Uniformity Horizontal Line Number 512 256 0 1023 768 Active area 576 384 192 0 test point X 1 to 5 X 4 3 2 1 5 Vertical Line Number 767 Hor...

Page 11: ...255 100 90 10 0 Optical Response Time Note 4 Measurement Setup The LCD module should be stabilized at given temperature for 20 minutes to avoid abrupt temperature change during measuring In order to stabilize the luminance the measurement should be executed after lighting Backlight for 20 minutes in a windless room Light Shield Room Ambient Luminance 2 lux Center of the Screen LCD Panel LCD Module...

Page 12: ...2 Green video input 10 Ground 3 Blue video input 11 NC 4 NC 12 SDA 5 Ground 13 Horizontal synchronization Composite sync 6 Red video ground 14 Vertical synchronization 7 Green video ground 15 SCL 8 Blue video ground 1 4 2 DC Connector DC Power Jack d 2 0mm 12 Please refer to Chapter 5 for more detail regarind the DC Connector ...

Page 13: ...1 4 3 Audio Connector Optional Phone Jack d 3 5mm 13 ...

Page 14: ... Power Switch Power On Off 2 LED Indicator Green Normal operation Orange Power management 3 MENU OSD control MENU button 4 Right selection Volume button AL1512m 5 Left selection Volume button AL1512m 6 AUTO Adjust Clock Phase H Position and V Position automatically 7 Speaker 1 5W x 2 14 ...

Page 15: ...2 1 2 Back No Name Descriptions 8 AUDIO IN d 3 5mm stereo mini Jack 9 VGA IN D sub mini 15pin Connector 10 DC IN DC Power Jack d 2 0mm 11 Lock hole Kinglock 15 ...

Page 16: ...SD Press it again to exit OSD 3 Plus and Minus Press this button for selection or adjustment when OSD is shown Press this button and click and to adjust volume when OSD is not shown for the model with speakers only 4 Auto Press this button to exit the manual when OSD is shown Press this button for the display to optimize the position phase and clock pulse automatically when OSD is not shown Auto L...

Page 17: ...Click the MENU to select the function to be adjusted Click or to change current settings To exit OSD select to close the OSD window and save changes To change other settings repeat steps 2 4 Bright Contract Adjustment Phase Clock pulse Adjustment Horizontal Vertical Adjustment Color Temp Adjustment Language Selection OSD Setting Auto Adjustment Message Restore Exit 17 ...

Page 18: ...put adjustment only Vertical Move the image up and down on the screen for input adjustment only N A Warm Color Temp Set up the color temp to be warm white color N A Cold Color Temp Set up the color temp to be cold white color User Definition Red User Definition Green User Definition Blue Adjust red green blue gain N A English N A 繁體中文 Complex Chinese N A Deutsch N A Français N A Español N A Italia...

Page 19: ...stem via the Display Data Channel DDC so that your computer can use the self setting function of the LCD display 2 6 Power Saver The LCD display has a built in Power Control System Power Saver When the LCD display is not operated during a certain time the Power Control System will brings the LCD display into low voltage status automatically to save power Move the mouse slightly or press any key to...

Page 20: ...rocedures Chapter 3 Picture Description Push the hooks and stand bottom away Remove Hinge Cover Loosen and remove 6 screws to remove Stand Assy Loose and remove 5 screws Separate Bezel hooks to take Bezel and Rear Cover apart Lift up Rear Cover 20 ...

Page 21: ...rd and AD PCBA Loose and remove 2 Stand Off screws Stand Off Part No 42A9940007 Loose and remove 1 screw Loosen Remove 3 screws Open Separate Metal Cover PCB X Remove the Cover of main board Remove 3 Backlight wires Loose and remove 3 screws 21 ...

Page 22: ...eparate its head from the housing at AD PCBA Remove the taps on X board FPC Pull out the X Board FPC Loose and remove 4 screws Remove AD PCBA Disassembly PCBA complete Lift up LCD module and remove bezel Separate both Audio Cable 22 ...

Page 23: ...Loose and remove 2 screws Take Function PCBA apart completed 3 2 Reassembly Procedures Place Function PCBA Fasten 2 screws Insert Audit Cable to connectors Bezel assembly complete Place LCD module 23 ...

Page 24: ...CBA Fasten 4 screws Insert FPC to connector Shift Inverter with care plug its head into the housing at AD PCBA Fasten 3 fixed screws Insert 3 Backlight wires Place Metal Cover AD Power PCB Place Metal Cover PCB X 24 ...

Page 25: ...al Cover PCB X andforward to have the hook latched Fasten 3 screws Fasten the screw Fasten 2 Stand Off screws Place Rear Cover Join hooks of Rear Cover with Bezel Fasten 5 screws Place Stand Assy Fasten 6 screws 25 ...

Page 26: ...Insert Stand Cover Have the hook latched 26 ...

Page 27: ...Troubleshooting Chapter 4 4 1 Abnormal Display Troubleshooting 27 ...

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Page 29: ...4 2 Abnormal ON OFF LCD display Keyboard Troubleshooting 29 ...

Page 30: ...4 3 Abnormal BIOS OSD Other Display Troubleshooting 30 ...

Page 31: ...4 4 Audio Abnormal Troubleshooting 31 ...

Page 32: ...Connector Information Chapter 5 5 1 Function block Diagram Audio Speaker Audio In Signal 3 3V D sub Analog Video DC12V LCD Backlight Inverter Main DC D DC 12V OSD Key 32 ...

Page 33: ...5 2 Connector Location CN3 CN2 CN4 JP1 CN5 33 ...

Page 34: ...PUT 12 GND GROUND 13 GMA1 GAMMA VOLTAGE 14 GMA2 GAMMA VOLTAGE 15 GMA3 GAMMA VOLTAGE 16 GMA4 GAMMA VOLTAGE 17 GMA5 GAMMA VOLTAGE 18 GMA6 GAMMA VOLTAGE 19 GMA7 GAMMA VOLTAGE 20 GMA8 GAMMA VOLTAGE 21 GMA9 GAMMA VOLTAGE 22 GMA10 GAMMA VOLTAGE 23 GND GROUND 24 VCOM PANEL COMMOM VOLTAGE 25 VCOM PANEL COMMOM VOLTAGE 26 VCOM PANEL COMMOM VOLTAGE 27 VCOM PANEL COMMOM VOLTAGE 28 VCOM PANEL COMMOM VOLTAGE 29...

Page 35: ...GROUND 3 ER0 EVEN PATH RED DATA BIT 4 ER1 EVEN PATH RED DATA BIT 5 ER2 EVEN PATH RED DATA BIT 6 ER3 EVEN PATH RED DATA BIT 7 ER4 EVEN PATH RED DATA BIT 8 ER5 EVEN PATH RED DATA BIT 9 GND GROUND 10 EG0 EVEN PATH GREEN DATA BIT 11 EG1 EVEN PATH GREEN DATA BIT 12 EG2 EVEN PATH GREEN DATA BIT 13 EG3 EVEN PATH GREEN DATA BIT 14 EG4 EVEN PATH GREEN DATA BIT 15 EG5 EVEN PATH GREEN DATA BIT 16 GND GROUND ...

Page 36: ...D PATH GREEN DATA BIT 35 OG4 ODD PATH GREEN DATA BIT 36 OG5 ODD PATH GREEN DATA BIT 37 GND GROUND 38 OB0 ODD PATH BLUE DATA BIT 39 OB1 ODD PATH BLUE DATA BIT 40 OB2 ODD PATH BLUE DATA BIT 41 OB3 ODD PATH BLUE DATA BIT 42 OB4 ODD PATH BLUE DATA BIT 43 OB5 ODD PATH BLUE DATA BIT 44 GND GROUND 45 GND GROUND 5 3 3 CN4 Pin assignment Pin No Symbol Description 1 INV_ADJ Brightness Adjustment 2 INV_ON OF...

Page 37: ... 3 NC 4 EXIT EXIT KEY 5 MENU MENU KEY 6 GND GROUND 7 UP UP KEY 8 LED OR ORANGE LED 9 LED GR GREEN LED 10 POWER_KEY POWER KEY 11 NC 12 HP_Detector HEADPHONE DETECT 13 DOWN DOWN KEY 14 NC 15 AUDIO R AUDIO OUTPUT 16 AUDIO R AUDIO OUTPUT 17 AUDIO L AUDIO OUTPUT 18 AUDIO L AUDIO OUTPUT 37 ...

Page 38: ...I RED INPUT 2 GGAI GREEN INPUT 3 GBAI BLUE INPUT 4 NC 5 GND GROUND 6 RGND RED INPUT GROUND 7 GGND GREEN INPUT GROUND 8 BGND BLUE INPUT GROUND 9 VGA_5V VGA INPUT 5V 10 GND_ANA GROUND 11 NC 12 DSUB SDA I2C 13 G_HSYNC H SYNC 14 G_VSYNC V SYNC 15 DSUB_SCL I2C 38 ...

Page 39: ... 40W 12 V 3 33A UP04081120 01W 2719040122 FUNCTION BUTTON BOARD PCBA Rigid 201 0M 35A15K0218 INVERTER BOARD DC AC INVERTER TWS 444 936 TYP 2400V 5MA 2714000001 Main Board PCBA Rigid 203 03 35A15S0236 CABLES FFC AD_OSD_GROUNDING TennRich 121 5 9 5mm 3241500004 AUDIO CABLE 28AWG 180 cm 32F2818001 Chapter 6 39 ...

Page 40: ...001 STAND BASE Seat Assy 40A15929D3 LCD FRONT BEZEL Bezel Assy 40A1529947 LCD BACK COVER Rear Assy 40A15929C4 Hinge Cover Cover Hinge 40A15929D5 MAINBOAR D COVER Cover_pcb_ad D Sub Only 41A1599115 LCD BRACKET METAL COVER PCB X 41A1599116 40 ...

Page 41: ... 2 OSD PCBA 3 SCREW 4 PANEL ASSY 5 PET_FILM_METAL_FRAM_R EAR 6 INVERTER 7 SMART PCBA 8 FFC AD_OSD 9 SCREW 10 PET ISOLUTION FILM 11 METAL COVER SMART 12 STAND OFF 13 REAR_ASSY 14 SCREW 15 SEAT_ASSY 16 STAND_ASSY 17 SCREW 18 STAND HINGE_COVER 41 ...

Page 42: ...Schematic Diagram Chapter 7 Main Board 42 ...

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