Acer AL1715 Service Manual Download Page 12

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Panel Relative Humidity

Input Signals

Video input

•

Type

Analog R, G, B.

•

Input Impedance

75 ohm +/- 2

•

Polarity Positive

•

Amplitude

0 - 0.7 +/- 0.05 Vp

•

Display Color

same as LCD panel

Sync input

•

Signal

separate horizontal and vertical sync, or composite sync
which are TTL compatible

•

Polarity

positive and negative.

Interface frequency

The following frequency range is generalized by supported timing. If the entered mode does not match the supported

timing the display optimization will not be assured.

•

Horizontal Frequency

24KHz --80KHz

•

Vertical Frequency 49Hz

-------75Hz

Summary of Contents for AL1715

Page 1: ... 1 Acer AL1715 Service Guide Service guide files and updates are available on the CSD web for more information Please refer to http csd acer com tw ...

Page 2: ...ect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose Any Acer Incorporated software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer and not Acer Incorporated its distributor of its dealer assumes the entire cost of all necessary servicing repair and any...

Page 3: ...ing To better fit local market requirements and enhance product competitiveness your regional office MAY have decided to extend the functionality of a machine e g add on card modem or extra memory capability These LOCALIZED FEATURES will NOT be covered in this generic service guide In such cases please contact your regional offices or the responsible personnel channel to provide you with further t...

Page 4: ...ed to try to correct the interference by one or more of the following measures 1 Reorient or relocate the receiving antenna 2 Increase the separation between the equipment and receiver 3 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected 4 Consult the dealer or an experienced radio TV technician for help Warning Use only shielded signal cables ...

Page 5: ... your home consult your dealer or local power company The monitor is equipped with a three pronged grounded plug a plug with a third grounding pin This plug will fit only into a grounded power outlet as a safety feature If your outlet does not accommodate the three wire plug have an electrician install the correct outlet or use an adapter to ground the appliance safely Do not defeat the safety pur...

Page 6: ...ay find slightly uneven brightness in the screen depending on the desktop pattern you use The LCD screen has effective pixels of 99 99 or more It may include blemishes of 0 01 or less such as a missing pixel or a pixel lit all of the time Due to the nature of the LCD screen an afterimage of the previous screen may remain after switching the image when the same image is displayed for hours In this ...

Page 7: ...pter 1 Monitor Feature 8 Chapter 2 Operating Instruction 22 Chapter 3 Machine Disassembly and Replacement 30 Chapter 4 Troubleshooting 40 Chapter 5 Connector Information 44 Chapter 6 FRU List 45 Chapter 7 Schematic Diagram 65 ...

Page 8: ...t LCD technology to provide a performance oriented product with no radiation This will alleviate the growing health concerns It is also a space saving design allowing more desktop space and comparing to the traditional CRT monitor it consumes less power and gets less weight in addition MTBF target is 20k hours or more Comparison Chart of AR577 578 AR577 AR578 Panel Normal 17 panel HYDIS HT17E12 20...

Page 9: ...ttings User brightness control Maximum unless otherwise specified User contrast control Typical unless otherwise specified User red white balance Green white balance and Blue white balance control In the center unless otherwise specified Power input 110Vac or 230Vac Ambient temperature 20 5 C 68 9 F Analog input mode 1280 x1024 60 Hz MEASUREMENT SYSTEMS The units of measure stated in this document...

Page 10: ...color 16 2M 6 bit color FRC Viewing angle HYDIS L R 80 80 160 degrees horizontal typical U D 65 65 130 degrees vertical typical Luminance Uniformity 75 typical Pc interface 1 Video RGB analog 0 7V peak to peak Sync TTL positive or negative Signal connector 15 pin Mini D type standard VGA video 3 5 mm stereo audio jack Audio For AR577 only Audio power 0 5Wrms 0 5Wrms 300Hz 10kHz S P L 10 dB AR577 o...

Page 11: ... VDD 5V FV 60Hz FDCLK 54MHz ITEM Symbol Condition MIN TYP MAX UNIT Contrast Ratio Center of screen CR 350 430 Rising TR Response Time at Ta Falling TF 20 total msec Luminance of white Center of screen YL 200 250 cd m 2 RX 0 603 0 633 0 663 Red RY 0 324 0 354 0 384 GX 0 262 0 292 0 322 Green GY 0 568 0 598 0 628 BX 0 115 0 145 0 175 Blue BY 0 077 0 107 0 137 WX 0 275 0 305 0 335 Color Chromaticity ...

Page 12: ...nc input Signal separate horizontal and vertical sync or composite sync which are TTL compatible Polarity positive and negative Interface frequency The following frequency range is generalized by supported timing If the entered mode does not match the supported timing the display optimization will not be assured Horizontal Frequency 24KHz 80KHz Vertical Frequency 49Hz 75Hz ...

Page 13: ...88 40 VESA 600 60Hz 60 317 628 600 4 1 23 800x600 48 077 1040 800 120 56 64 50 VESA 600 72Hz 72 188 666 600 6 37 23 800x600 46 875 1056 800 80 16 160 49 5 VESA 600 75Hz 75 625 600 3 1 21 1024x768 48 363 1344 1024 136 24 160 65 XGA 60 004 806 768 6 3 29 1024x768 53 964 1328 1024 176 16 112 71 664 COMPAQ XGA 66 132 816 768 4 8 36 1024x768 56 476 1328 1024 136 24 144 75 VESA 768 70Hz 70 069 806 768 6...

Page 14: ... Monitor should display Out of Range warning menu at this mode Video input Connector Analog Video input Connector 15pins mini D Sub Table 2 4 5 Pin assignment for D sub connector PIN NO Separate Sync 1 RED VIDEO 2 GREEN VIDEO 3 BLUE VIDEO 4 GROUND 5 GROUND 6 RED GROUND 7 GREEN GROUND 8 BLUE GROUND 9 PC5V 5V DDC 10 CABLE DETECTION 11 GROUND 12 SDA 13 H SYNC 14 V SYNC 15 SCL 15 10 5 1 6 11 D sub con...

Page 15: ...board key board and internal adapter which house the flat panel control logic brightness control logic and DDC The inverter board will drive the backlight of panel and the DC DC conversion The Adapter will provide thr 12V DC power to inverter power board Power board include AC DC inverter ...

Page 16: ... 16 BLOCK DIAGRAM System Block Diagram MCU LVDS Signals MVPRL including ADC Scaling LVDS And OSD function ...

Page 17: ...nt LABEL Component U1 74LVC14 CN1 D SVB 15 PIN U2 24LVC21 CN9 E T 4501 10 U4 MVPRL CN3 E T 6113 08 U6 M8064I CN301 E T 4501 11 U5 24LC16B CN302 E T 4501 03 U7 MAX810 CN7 E T DF14 30 U8 SI9435 U9 LM4838 U10 APL1085 3 3 CE U11 APL1117 2 5 VC ...

Page 18: ... 18 Software flow chart ...

Page 19: ...on the LED and set it to green color Scalar initialize 10 In standby mode 11 Update the lift time of back light 12 Check the analog port are there any signals coming 13 Does the scalar send out a interrupt request 14 Wake up the scalar 15 Are there any signal coming from analog port 16 Display Cable Not Connected message and go into standby mode after the message disappear 17 Program the scalar to...

Page 20: ...g these settings the picture can be adjusted to your personal preferences The power cord should be connected Connect the video cable from the monitor to the video card Press the power button to turn on the monitor position The power indicator will light up AR577 AR578 External Controls 1 Auto Adjust Key Exit 4 MENU ENTER 2 Volume 5 LED 3 Volume 6 Power Key ...

Page 21: ...PC Make sure connections are secure Connecting the AC Power Connect the power cord to the LCD Monitor Connect the power cord to an AC power source Connecting the Audio Cable For AL1715 m and AL1715 bm Connect the audio cable to the LINE OUT jack on your PC s audio card or to the front panel s AUDIO OUT jack of your CD ROM drive Connect the other end of the audio cable to the LCD Monitor s AUDIO IN...

Page 22: ...st increase Function select Adjust decrease Function select 5 Auto adjustment Buttons Note 1 Press button 4 plus or minus at the same time can activate Volume Adjustment 2 When OSD Menu is off press button 5 auto at the same time can activate Auto Adjustment immediately 3 When into Factory mode press 4 plus minus and 1 power together 2 seconds at same time 5 When into Burning mode press 5 menus 1 ...

Page 23: ...htness Value Focus Adjust Picture Phase to reduce Horizontal Line noise 0 100 Do Auto Config Clock Adjust picture Clock to reduce Vertical Line noise 0 100 Do Auto Config H Position Adjust the horizontal position of the picture 0 100 Do Auto Config V Position Adjust the verticalposition of the picture 0 100 Do Auto Config Warm N A Recall Warm Color Temperature from EEPROM N A Cool N A Recall Cool ...

Page 24: ...display language to Italian N A 简体中文 N A Set OSD display language to Simplified Chinese N A 日本語 N A Set OSD display language to Japanese N A The Language will be set to English H Position Adjust the horizontal position of the OSD 0 100 50 V Position Adjust the verticalposition of the OSD 0 100 50 OSD Timeout Adjust the OSD timeout 10 120 10 Auto Config N A Auto Adjust the H V Position Focus and Cl...

Page 25: ...SD Message Item Description Auto Config Please Wait When User Press Hot Key Auto will show this message and the monitor do the auto config function Input Not Supported When the Hsync Frequency Vsync Frequency or Resolution is out of the monitor support range will show this message This message will be flying Cable Not Connected When the video cable is not connected will show this message This mess...

Page 26: ...ess and Contrast value to Max 2 Auto Balance Adjust each R G B contrast gain and offset Method of auto adjust is depends on hardware Adjusted value of R G B gain shall be used for initial value of Contrast in user menu All value shall be adjustable manually This function shall be located in 3 tag of Factory menu 3 Factory color temp data edit Following data for color temp shall be editable manuall...

Page 27: ...esent When there is no video input signal this monitor following a time out period will automatically switch to an OFF mode This reduces the monitor s internal power supply consumption After the video input signal is restored full power is restored and the display is automatically redrawn The appearance is similar to a Screen Saver feature except the display is completely off The display is restor...

Page 28: ...8 0 469 u v 0 01 User TCO 0X A 2 6 1 requirement User should follow Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM s http www microsoft com hwdev tech color ColorTest asp Audio Technical specification For AR577 only General Description Output power 1W 1W maximum Total harmonic distortion Less than 1 except speakers distortion Input signal sensitivity 0 5 Vrms for full...

Page 29: ...ms 300Hz 20KH z 10dB 10d B Volume Max load 4 Ω Signal to Noise ratio 500m Vrms 1KHz 40dB Volume Max load 4 Ω Total harmonic distortion 500m Vrms 1KHz 1 except speakers distortion Cross talk 500m Vrms 1KHz 30dB Volume Max load 4 Ω Output Watt 500m Vrms 1KHz 0 5W Volume Max load 4 Ω Volume Control Analog Speakers Maximum power 2 W per speaker max Impedance 4 ohm 15 1kHz 1 0Hz Frequency response rang...

Page 30: ...placement The step between front bezel and back cover shall be within specification Top and Bottom Left and Right Back cover Bezel concavity Back cover Bezel concavity 0 8mm A 1 3 mm 0 8mm A 1 3 mm Back Cover Hinge Cover concavity 0mm B 0 5mm ...

Page 31: ... 31 Base Neck concavity 0mm C 0 6mm Top and Bottom Left and Right Back cover Bezel step Back cover Bezel step 0mm D 0 8 mm 0mm D 0 8 mm ...

Page 32: ... 32 LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1 0mm The distance of the LCD display unit from left side to right should not large than 4 0mm ...

Page 33: ...up 15 2 down 5 2 Plastic Material For TCO99 Front Bezel PC ABS Back Cover PC ABS The Others ABS 94HB For MPRII Front Bezel ABS 94V 0 Back Cover ABS 94V 0 The Others ABS 94HB GAP Spec Gap between panel with bezel is 0 mm gap 1 2 mm ...

Page 34: ...RIPTION Connect the FPC line on panel Assemble the chassis onto panel Firmly secure the Panel with 4 screws Plug two speakers to put on bezel AR578 AR577 1 Connect the 13P line with VK board 2 Firmly secure the VK board with 4 screws ...

Page 35: ...35 Connect speaker wires on VK board For AR577 only Connect the bezel with monitor To reverse the monitor AR577 AR578 Assemble the power board onto chassis ...

Page 36: ...36 AR577 AR578 Firmly secure the power board with 5 screws AR577 AR578 Firmly secure the power cable with screws Connect four panel voltage line on power board ...

Page 37: ... board onto chassis 2 Firmly secure the VlL board with 3 screws Firmly secure the VlL board and line with screws Connect the FPC on VL board Connect the power line on VL board AR577 AR578 Connect the VL VK line on VL board ...

Page 38: ...38 Connect the audio line on power board For AR577 only Firmly secure the line and chassis with 4 screws AR577 AR578 Check it Put the EMI cover on monitor Put the screws on EMI cover with monitor ...

Page 39: ...cure the back cover with 4 screws 1 Assemble the neck bracket onto neck 2 Firmly secure the neck bracket with 4 screws 1 Connect the hinge with neck 2 Firmly secure the hinge with 3 screws 1 Assemble the neck with back cover 2 Firmly secure the neck with 4 screws Assemble the base with monitor ...

Page 40: ...40 Chapter 4 Troubleshooting Main Procedure ...

Page 41: ...41 Power Circuit and Backlights Troubleshooting ...

Page 42: ...42 Performance Troubleshooting ...

Page 43: ...43 Function Troubleshooting ...

Page 44: ...nnector Analog Video input Connector 15pins mini D Sub Table 2 4 5 Pin assignment for D sub connector PIN NO Separate Sync 1 RED VIDEO 2 GREEN VIDEO 3 BLUE VIDEO 4 GROUND 5 GROUND 6 RED GROUND 7 GREEN GROUND 8 BLUE GROUND 9 PC5V 5V DDC 10 CABLE DETECTION 11 GROUND 12 SDA 13 H SYNC 14 V SYNC 15 10 5 1 6 11 15 SCL J1 PHONEJACK STEREO 1 2 3 ...

Page 45: ...om tw spl For whatever reasons a part number change is made it will not be noted in the printed Service Guide For ACER AUTHORIZED CERVICE PROVIDERS your Acer office may have a DIFFERENT part number code to 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 repair and service of customer machines NOTE To...

Page 46: ...46 Model AR577 ...

Page 47: ...47 Model AR578 ...

Page 48: ...rews M4X0 7 11P MC WASHER DIM 8 0 MAA70002400 4 NECK COVER AR7721 ABS94HB MCG62 FAAR7721100 6 NECK BRACKET AR7722 SECC1 0 ECAR7722000 7 HINGE ASSY AR7717 SK 7 T 22 ECAR7717000 8 NECK AR7713 ABS94HB MCG62 FAAR7713100 9 Panel Chassis M3X0 5 4I NI MAA00001240 10 Function Board VK 583 LAR577Y 454AAP30001 11 BACK COVER Neck Neck Bracket Chassis Bezel TPP 4 0 10P NI MAB20074201 ...

Page 49: ...0mm CG10021V920 CG10021V930 16 POWER BOARD CHASSIS M3x0 5 6F ZK MAA10022007 17 Invertor Board VP 583 LAR577Y 453AAP30001 18 Key B Bezel TPP2X3 12B MC MAB80007400 19 POWER BOARD CHASSIS M4 0X0 7 8BTF MC MAA80014400 20 Function board to Mainboard cable AR577 CTRL KEY 13P DC020162300 21 Main Shield AR7716 TIN0 3 ECAR7716000 22 Mainboard and Invertor Board Screws M3X0 5 4C NI MAA70003100 ...

Page 50: ...Frame BEZEL AR7711A PC ABS MCG62 FAAR7711A10 25 Main Frame CHASSIS AR7715 SECC1 0 ECAR7715000 26 Mainboard to LCD Cable JP577 PANEL CTRL 30P DC020160700 27 LCD Panel F HT17E12 200 17 HYDIS AC6V0000200 28 LCD Panel B HT17E12 200 17 HYDIS AC6V0000200 ...

Page 51: ...94HB MBK24 FAAR7714A00 4 Stand Screws M4X0 7 11P MC WASHER DIM 8 0 MAA70002400 5 NECK COVER AR7721 ABS94HB MBK24 FAAR7721000 6 NECK BRACKET AR7722 SECC1 0 ECAR7722000 7 HINGE ASSY AR7717 SK 7 T 22 ECAR7717000 8 NECK AR7713 ABS94HB MBK24 FAAR7713000 9 Panel Chassis M3X0 5 4I NI MAA00001240 10 Function Board VK 583 LAR577Y 454AAP30001 11 Back Cover AR7712A PC ABS MBK24 FAAR7712A00 12 Hinge Screws TP...

Page 52: ... MAA10022007 16 Invertor Board VP 583 LAR577Y 453AAP30001 17 Key B Bezel TPP2X3 12B MC MAB80007400 18 POWER BOARD CHASSIS M4 0X0 7 8BTF MC MAA80014400 19 Function board to Mainboard cable AR577 CTRL KEY 13P DC020162300 20 Main Shield AR7716 TIN0 3 ECAR7716000 21 Mainboard and Invertor Board Screws M3X0 5 4C NI MAA70003100 22 Mainboard VL 731 LAR577Y 461AAI300E1 ...

Page 53: ...PC ABS MBK24 FAAR7711A00 24 Main Frame CHASSIS AR7715 SECC1 0 ECAR7715000 25 Mainboard to LCD Cable JP577 PANEL CTRL 30P DC020160700 26 LCD Panel F HT17E12 200 17 HYDIS AC6V0000200 27 LCD Panel B HT17E12 200 17 HYDIS AC6V0000200 ...

Page 54: ...Screws M4X0 7 11P MC WASHER DIM 8 0 MAA70002400 4 NECK COVER AR7721 ABS94HB MCG62 FAAR7721100 6 NECK BRACKET AR7722 SECC1 0 ECAR7722000 7 HINGE ASSY AR7717 SK 7 T 22 ECAR7717000 8 NECK AR7713 ABS94HB MCG62 FAAR7713100 9 Panel Chassis M3X0 5 4I NI MAA00001240 10 Function Board VK 583 LAR578Y 454AAP30011 11 BACK COVER Neck Neck Bracket Chassis Bezel TPP 4 0 10P NI MAB20074201 ...

Page 55: ... 5 6F ZK MAA10022007 16 Invertor Board VP 583 LAR578Y 453AAP30011 17 Key B Bezel TPP2X3 12B MC MAB80007400 18 POWER BOARD CHASSIS M4 0X0 7 8BTF MC MAA80014400 19 Function board to Mainboard cable AR578 CTRL KEY 13P DC020162500 20 Main Shield AR7816 TIN0 3 ECAR7816000 21 Mainboard and Invertor Board Screws M3X0 5 4C NI MAA70003100 22 Mainboard VL 731 LAR578Y ABO 461AAI300E2 ...

Page 56: ...PC ABS MCG62 FAAR7811A10 24 Main Frame CHASSIS AR7715 SECC1 0 ECAR7715000 25 Mainboard to LCD Cable JP577 PANEL CTRL 30P DC020160700 26 LCD Panel F HT17E12 200 17 HYDIS AC6V0000200 27 LCD Panel B HT17E12 200 17 HYDIS AC6V0000200 ...

Page 57: ...ASHER DIM 8 0 MAA70002400 4 NECK COVER AR7721 ABS94HB MBK24 FAAR7721000 5 NECK BRACKET AR7722 SECC1 0 ECAR7722000 6 HINGE ASSY AR7717 SK 7 T 22 ECAR7717000 7 NECK AR7713 ABS94HB MBK24 FAAR7713000 8 Panel Chassis M3X0 5 4I NI MAA00001240 9 Function Board VK 583 LAR578Y 454AAP30011 10 BACK COVER Neck Neck Bracket Chassis Bezel TPP 4 0 10P ZK MAB20074202 11 Back Cover AR7812A PC ABS MBK24 FAAR7812A00...

Page 58: ...AR578Y 453AAP30011 16 Key B Bezel TPP2X3 12B MC MAB80007400 17 POWER BOARD CHASSIS M4 0X0 7 8BTF MC MAA80014400 18 Function board to Mainboard cable AR578 CTRL KEY 13P DC020162500 19 Main Shield AR7816 TIN0 3 ECAR7816000 20 Mainboard and Invertor Board Screws M3X0 5 4C NI MAA70003100 21 Mainboard VL 731 LAR578Y ABO 461AAI300E2 22 Frame BEZEL AR7811A PC ABS MBK24 FAAR7811A00 ...

Page 59: ... 23 Main Frame CHASSIS AR7715 SECC1 0 ECAR7715000 24 Mainboard to LCD Cable JP577 PANEL CTRL 30P DC020160700 25 LCD Panel F HT17E12 200 17 HYDIS AC6V0000200 26 LCD Panel B HT17E12 200 17 HYDIS AC6V0000200 ...

Page 60: ...brightness adjustment Burst mode Protection function auto recovery type Interface Signals Input 1 AC Inlet HUAJIE SA 4S 066 or compatible 2 J701 SC SCJ 0345 1 X 9 3 6D BLU 3P or compatible Output Connector Pin Assignment 1 The connecter was pitch 2 0mm cable length was 125mm PIN NO Function Function 1 5Vaudio Audio power optional 2 GND Audio ground 3 GND Ground 4 GND Ground 5 Vbri Brightness contr...

Page 61: ...fication AC DC Electrical specification Input Specification No Item Condition Min Typ Max Unit 1 Input Voltage 100 240 Vac 2 Input Frequency 47 63 Hz 3 Input Current 1 0 Arms Cold Start Vin 100Vrms 30 A0 P 4 Inrush Current Cold Start Vin 240Vrms 50 A0 P 5 Hold Up Time full load 100Vac input 10 ms 6 Turn on time Vin 110Vac 1 0 S 7 Efficiency Full load 70 8 Consumption Vin 240Vac no load 1 W ...

Page 62: ...ith a 10uf Ecap 0 1uf Ceramic cap 2 Band width is limited within 20MHz 3 5Vdc 150mVp p 15Vinv 450mVp p Dynamic Load Regulation 50 100 or 100 50 load change of any DC output 50 duty of 1MHz min 5 Over Under Shoot Power line on off 5 5Vdc load regulation test the 15Vinv loading at 2 0A 15Vinv load regulation test the 5Vdc loading at 1 5A Protection function 1 SCP Short circuit protection must be act...

Page 63: ...ghtness lamp current in 6 5mA 200 250 Cd m Output Current Each connector Vbri 0 4V 3 3V 3 6 5 7 mA Frequency 30 70 KHz Lamp start voltage 0 1340 1570 Vrms Striking Time 1 S Lamp Current Balance 0 3 mA Efficiency Vin 15V 80 Operating Life Time 40000 50000 Hr The open lamp voltage is testes at output connector terminal SAFETY Leakage Current 0 25mA 100Vac Insulation Resistance more than 3M ohms whil...

Page 64: ...ED 5S Switch off 5W Dark LED SYNC On means Normal operation SYNC Off means H sync F 10KHz duty cycle 25 V sync F 10Hz duty cycle 25 CONNECTORS CONTROLS Connectors Power Monitor rear side AC Inlet Analog RGB Monitor rear side Data Cable 15 pin D sub female male Pin Assignment of 15 pin D sub 1 Red Video 9 5V FOR DDC 2 Green Video 10 Detect 3 Blue Video 11 Serial Data for ISP 4 Serial Clock for ISP ...

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