Acer AL1731 AL1731 Service Guide
Acer AL1731 Manual
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- Acer AL1731 | AL1731 Service Guide - Page 1
Monitor AL1731 Service Guide Service guide files and updates are available on the AIPG/CSD web; for more information, please refer to http://csd.acer.com.tw - Acer AL1731 | AL1731 Service Guide - Page 2
2.1 Standard Test Conditions ...4 All tests shall be performed under the following conditions, unless otherwise specified 4 2.2 LCD monitor General specification ...4 2.3 LCD Panel Specification ...5 2.4 Input Signals...11 2.5 CONTROLS ...15 2.6 White Color Temperature...19 2.7 POWER SUPPLY ...20 - Acer AL1731 | AL1731 Service Guide - Page 3
9.2 Storage or Shipment ...44 10.REGULATION COMPLIANCE ...45 10.1 This product comply to the most current revisions of following regulations 45 10.2 Electrostatics Discharge (ESD)...46 11.QUALITY AND RELIABILITY...47 11.1 Quality Assurance ...47 11.2 Reliability ...47 12.Part List ...48 Appendix A: - Acer AL1731 | AL1731 Service Guide - Page 4
1. INTRODUCTION 1.1 Scope This specification defines the requirements for the 17" MICRO-PROCESSOR based Multimode supported high resolution color LCD monitor, Monitor can be directly connected to general 15 pin D-sub VGA connector and DVI-D digital connector, eliminates the requirement of optional - Acer AL1731 | AL1731 Service Guide - Page 5
control: User red/white balance, Green/white balance and Blue/white balance control: Power input : Ambient temperature : Analog input mode : 225 lux 50 cm in front of LCD panel 30 minutes 5 seconds Chroma 2250 signal generator or equivalent, directly Connected to the monitor under test. Minolta - Acer AL1731 | AL1731 Service Guide - Page 6
56Hz ----75Hz Plug & play : Support VESA DDC2B functions Power Input voltage : Single phase, 50/60HZ, 100VAC to 240VAC ±10% Total output power : 56 Watt max. 2.3 LCD Panel Specification 2.3.1 LCD Panel Model (Hydis HT17E12-200) • Display Type • Resolution • Display Dot • Display Area - Acer AL1731 | AL1731 Service Guide - Page 7
• Lamp Voltage • Lamp Current • Weight • Optical Specifications 700 Vrms (typ) 6.5 mArms ( typ) 1900g ( MAX) The following items are measured under stable conditions. The optical characteristics should be measured in a dark room or - Acer AL1731 | AL1731 Service Guide - Page 8
Note 1) Definition of Viewing Angle: Viewing angle range (10≤CR) Note 2) Definition of Contrast Ratio (CR): Ratio of gray max(Gmax),gray min(Gmin) at the center point of panel. Luminance with all pixels white (Gmax) CR Luminance with all pixels black (Gmin) Note 3) Definition of Response time: Sum - Acer AL1731 | AL1731 Service Guide - Page 9
x2)(Refer to the note(1) in the page 14 for more information ). Environment condition :Ta=25±2°C Optical characteristics measurement setup Notes 5) Definition of Luminance of White : measure the luminance of white at center point. 8 - Acer AL1731 | AL1731 Service Guide - Page 10
brightness Notes 7) Definition of Flicker level Flicker Voltage pp F x 100 % LMD Voltage dc ♦ One maximum value of three estimated values. ♦ For this test ,an LMD(Light Measurement Device)is needed with adequate response time to track any visible rate flicker component and with a voltage level - Acer AL1731 | AL1731 Service Guide - Page 11
E until the worst case shadowing is observed. This defines the background (Gbkg) and foreground (Gfg) levels to be maintained for the remainder of the test. ♦ One point only (the target) will be measured. To determine that point proceed as follows Using the background and foreground gray levels of - Acer AL1731 | AL1731 Service Guide - Page 12
+/- 0.05 Vp same as LCD panel 2.4.2 Sync input • supported timing the display optimization will not be assured. • Horizontal Frequency 30KHz --80KHz(analog), 31.5- 64KHz(digital) • Vertical Frequency 56Hz ---------75Hz DISPLAY MODES MONITOR MODE NO. 1 2 3 4 5 6 7 8 9 10 11 12 SCREEN RESOLUTION - Acer AL1731 | AL1731 Service Guide - Page 13
31.5 28.322 40 50 49.5 65 75 78.75 108 135 If the input timing is not a supported timing listed above but within the supported frequency range (Horizontal: 80KHz,Vertical: 75Hz), this monitor will select a closest mode instead. But the display quality may not be optimized. If the input timing over - Acer AL1731 | AL1731 Service Guide - Page 14
2.4.5 85Hz refresh rate Support Monitor should display 85Hz refresh rate mode as emergency mode. Monitor should display "Out of Range" warning menu at this mode. 2.4.6 Analog Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D- - Acer AL1731 | AL1731 Service Guide - Page 15
of DVI -D connector : 1 TX2- 9 TX1- 17 TX0- 2 TX2+ 10 TX1+ 18 TX0+ 3 Shield power of the monitor is switched on, no voltage may occur at pin 14. Composite Video: Monitor rear side RCA female (Yellow). AV1-input S-Video (Y/C): Monitor rear side 4 Pin Mini-DIN female. S-Video 2.4.7 Support - Acer AL1731 | AL1731 Service Guide - Page 16
0.7Vpp 75 ohm terminated : NTSC/PAL 2.5 CONTROLS A brief description and the location of all LCD Monitor functions controls and indicators: 1 Stereo Speakers 2 Soft Power Switch (DC Power-On Indicator) 3 Auto 4 Function Select and Adjustment Control Buttons 5 Menu Figure 2-1 PC Audio - Acer AL1731 | AL1731 Service Guide - Page 17
2.5.1 Adjusting the Monitor's Display The monitor has four function control buttons to select among functions shown on OSD menu, designed for easy user-viewing environments. OSD Function Menu To access OSD Main menu, simply press one of the Function Select control buttons, and the menu diagram will - Acer AL1731 | AL1731 Service Guide - Page 18
you need. To exit the main menu. You can select how long the monitor waits after the last adjust of the key to shut off the OSD menu. exit the main menu. Advanced Sharpness Color Cool Natural Warm User User red User green User blue Adjusts the picture sharpness. You have 4 kinds of . Options 17 - Acer AL1731 | AL1731 Service Guide - Page 19
the currently highlight control to the factory setting. User must be using factory preset video mode to HZ: • VER 1.00: Current mode resolution. Current mode vertical frequency±1Hz. Firmware modes are recorded into EEPROM. If other support modes input to monitor EEPROM will cancel by first in first - Acer AL1731 | AL1731 Service Guide - Page 20
01 +0.03 Color Coordinate u' v' 0.189 0.446 0.198 0.468 0.209 0.488 - - Tolerance u'v' < 0.01* u'v' < 0.01* u'v' < 0.01* - User should follow "Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM's". (http://www.microsoft.com/hwdev/tech/color/ColorTest.asp) 19 - Acer AL1731 | AL1731 Service Guide - Page 21
input Voltage Range The monitor shall operate within specification over the range of 90 to 265 VAC power supply. 2.7.2 Input Frequency Range Input power frequency range shall be from 47.5 to 63 Hz over the specified input voltage range. 2.7.3 Quick specification review • Input current 1.2A (max - Acer AL1731 | AL1731 Service Guide - Page 22
Connector All units shall have an IEC/CEE-22 type male power receptacle. 2.7.7 Inverter & DC/DC Board (VP-903) 1.Hydis / OFF control (Active High) ON:1.5~3.3V, OFF:-0.3~1.0V +5Vdc supply to micro-P, always on. +12 Vdc supply to mainboard. 2-2. Output Connector#2 (for CCFLs , J940,J980,J941,J981) - Acer AL1731 | AL1731 Service Guide - Page 23
Connector type: ACES 87210-0236 P3.5 or alternative Pin No. 1 2 Symbol HV LV Descripition High Voltage Low Voltage 2.8 Plug & Play (EDID) The monitor will be capable of sending a VESA standardized EDID file through the DDC (pins 12, 15 of the VGA connector). 22 - Acer AL1731 | AL1731 Service Guide - Page 24
2.9 Audio Technical specification 2.9.1 General Description: Output power : 1Wrms + 1Wrms maximum Total harmonic distortion : Less -20KHz -10dB 500m Vrms 1KHz - 500m Vrms 1KHz 500m Vrms 1KHz - 500m Vrms 1KHz - - Spec. Comment Typ. Max. 5 - 500 800 - 6 d B Volume Max.,load 4 Ω - - Acer AL1731 | AL1731 Service Guide - Page 25
to construct a high display quality LCD monitor. 3.2 Features • On board embedded micro-processor to detect display timings and control user functions. • Using PixelWorks PW131 design to generate optimum LCD timings. 2 • Using E PROM to memorize every adjusted parameter. • Support up to 13 display - Acer AL1731 | AL1731 Service Guide - Page 26
3.3 BLOCK DIAGRAM 25 - Acer AL1731 | AL1731 Service Guide - Page 27
3.4 Connector Locations 3.5 Connector Type Location CN1 CN2 CN3 CN5 CN6 CN8 CN10 Type 24P Female V/DVI-D 15P Female V/D-Sub 4300-04 98210-4011 4500-09 4300-05 4300-08 Maker Foxconn E&T E&T E&T E&T E&T E&T Number of pins 24 15 04 40 09 05 08 26 - Acer AL1731 | AL1731 Service Guide - Page 28
Ground. Ground. Ground DDC Power Input. PCDETECT Input. NC DDC 17 19 20 22 23 25 26 28 29 03,06,09, 12 15, 18, 21, 24 27, 30, 34, 35 39,40 Symbol VDD TXE0TXE0+ TXE1TXE1+ TXE2TXE2+ TXECLKTXECLK+ TXE3TXE3+ TXO0TXO0+ TXO1TXO1+ TXO2TXO2+ TXOCLKTXOCLK+ TXO3TXO3+ GND GND GND GND Function 5V POWER SUPPLY - Acer AL1731 | AL1731 Service Guide - Page 29
Output Audio Left - Channel Output Audio GND Audio Right + Channel Output Audio Right - Channel Output Comment 12V Power Input +5V Power Input +5V Power Input Black Light ON Brightness Adjusting GND GND Audio GND Audio +5V Power Input 3.6.5 CN3 Pin NO. 1 2 3 4 Signal +5 V RXD TXD GND Comment 5V - Acer AL1731 | AL1731 Service Guide - Page 30
Comment Power saving mode Monitor is ON GND Power ON/OFF key Auto Adjusting and Channel Selection Function Selection enable Function select and Adjust UP Function select and Adjust Down 3.6.7 CN1 Digital Video input Connector: DVI-D Pin-Assignment of DVI-D(24 pin) connector 1 TX2- 9 TX1- 17 TX0 - Acer AL1731 | AL1731 Service Guide - Page 31
is designed to offer a user interfaced control panel which passes 1 2 3 4 5 Signal L+ LGND R+ R- Maker E&T E&T ACER ACER LED Number of pins 5 8 2 2 3 Comment Audio Left + LED-G GND KEY-POWER KEY-AUTO KEY-MENU KEY-UP KEY-DOWN Comment Power saving mode Monitor is ON GND Power ON/OFF key Auto - Acer AL1731 | AL1731 Service Guide - Page 32
4.5 Switch definition Location Definition S1, S2 S3 S5 S6 S4 Power ON/OFF Auto Adjusting and Input Mode selection Function selection Enable Function select and Adjust UP Function select and Adjust Down 4.6 LED definition Location Definition - Acer AL1731 | AL1731 Service Guide - Page 33
5. TROUBLESHOOTING 5.1 Main Procedure 32 - Acer AL1731 | AL1731 Service Guide - Page 34
5.1.1 Power Circuit Troubleshooting 33 - Acer AL1731 | AL1731 Service Guide - Page 35
5.1.2 Backlights Troubleshooting 34 - Acer AL1731 | AL1731 Service Guide - Page 36
5.1.3 Performance Troubleshooting 35 - Acer AL1731 | AL1731 Service Guide - Page 37
5.1.4 Function Troubleshooting 36 - Acer AL1731 | AL1731 Service Guide - Page 38
testing shall be done in each of three mutually perpendicular axes, referenced to the position of the system as it is in front of the user shock inputs. 6.2 Package Drop Specification Listed below are standards of drop heights for monitor product Product Weight height Specs - Acer AL1731 | AL1731 Service Guide - Page 39
6.3 Dimension Size and Weight Top and Bottom Back cover & Bezel concavity 0.5mm ≤ A ≤ 1.0 mm Left and Right Back cover & Bezel concavity 0.5mm ≤ A ≤ 1.0 mm LAM737-E01 Back Cover & Bezel Step 0.65mm ≤ B ≤ 1.2mm LAM737-E02 LAM737-E03 38 - Acer AL1731 | AL1731 Service Guide - Page 40
6.3.1 LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. LAM737-E04 The distance of the LCD display unit from left side to right should not large than 4.0mm. 0 ≤ E-F ≤ 4 LAM737-E05 39 - Acer AL1731 | AL1731 Service Guide - Page 41
PC+ABS Back Cover ABS 94HB The Others ABS 94HB 6.6 GAP Spec. Gap between panel with bezel is 0 mm < gap < 1.2 mm 7. Power Line Transient Test (IEC 61000-4-4 Fast Transients/Burst) TEST CONDITIONS & PROCEDURE: (Follow IEC 61000-4-4) Test Condition : The condition is base on operating with 50Ω load - Acer AL1731 | AL1731 Service Guide - Page 42
: 15°C to 35°C - Relative Humidity: 45% to 75% - Atmospheric Pressure: 86 kPa to 106 kPa 7.10 Test Procedure: The monitor Display set high-resolution mode, AC input use AC 240V. Note : 7.10.1 IEC 61000-4-4 defines that power supply, I/O line, and control line all shall be performed the transient - Acer AL1731 | AL1731 Service Guide - Page 43
WAVESHAPE 42 - Acer AL1731 | AL1731 Service Guide - Page 44
lines and ground. 8.4 If not otherwise specified, the surge to power supply circuits shall be applied synchronized to the voltage phase at the zero crossing and the peak value of the AC voltage wave. (Positive and negative) 8.5 The surge voltage for test is from 1 KV and increases 1 kV for each step - Acer AL1731 | AL1731 Service Guide - Page 45
80% Sea level to 8000ft 9.2 Storage or Shipment Temperature Relative Humidity Altitude -20°C ~ +60°C 5% to 85% Sea level to 40,000ft 9.2.1 TEST PROCEDURE: • Put in temperature chamber under 60°C • Back to room temperature • Put in temperature chamber under -20°C • Back to room temperature • The - Acer AL1731 | AL1731 Service Guide - Page 46
of power saving according to NUTEK Spec. 803299/94/96, EPA Energy star. Requirements for Environmental Labeling of Personal Computers. Test methods for Frequency Fields IEC 61000-4-8 Power Frequency Magnetic Field IEC 61000-4-11 Voltage DIP/Interruption Specification for limits and methods of - Acer AL1731 | AL1731 Service Guide - Page 47
performance within the specification limits Discharge times: 20 times for each discharge point, time interval 1 second. In the case of acceptance tests, the test program and the interpretation of the test results are subject to agreement between manufacturer and user. The test documentation shall - Acer AL1731 | AL1731 Service Guide - Page 48
AND RELIABILITY 11.1 Quality Assurance Unless otherwise specified in this specification or the applicable purchase order, the supplier shall be responsible performing inspections that are sufficient to assure that the parts supplied meet the requirements specified herein. 11.2 Reliability The product - Acer AL1731 | AL1731 Service Guide - Page 49
12. Part List Picture Partname Descrtiption Part No. BACK COVER ASSY BACK COVER ASSY 60.L08V2.005 BEZEL ASSY BEZEL ASSY 60.L08V2.004 CHASSIS CHASSIS 60.L08V2.001 EMI COVER EMI COVER 60.L08V2.002 HINGE ASSY HINGE ASSY 34.L08V2.001 KEY BOARD KEY BOARD 55.L08V2.001 48 - Acer AL1731 | AL1731 Service Guide - Page 50
MAIN BOARD MAIN BOARD 55.L08V2.003 NECK NECK 60.L08V2.003 POWER BOARD POWER BOARD 55.L08V2.002 STAND BASE ASSY STAND BASE ASSY 60.L08V2.006 49 - Acer AL1731 | AL1731 Service Guide - Page 51
Appendix A: DISPLAY Assembly 50 - Acer AL1731 | AL1731 Service Guide - Page 52
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- D1H QUANTITY REQUIRED DWG.NO. LAM737 REV. 0A C NO. PART NO. DESCRIPTION SPECIFICATION Y0 001 REMARKS # LAM737Y0001 LAM737Y ABO UR+TCO99 MSV16/MSV34/MBK17 HYD 1 GA050000400 POWER CORD SET 2 DC190021010 CB ASY 3 DC190021020 CB ASY 4 DC190021030 CB ASY 5 DC190021040 - Acer AL1731 | AL1731 Service Guide - Page 54
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DESCRIPTION SPECIFICATION 30 001 REMARKS # 58273030001 DIS UNIT ABO LAM737Y TCO99 HYDIS 1280X1024 1 AC6V0000200 LCD MODU GASKET 10 454AA030001 PCBA KEY/B 11 455AA130001 PCBA POWER/B 12 461AA030021 FIRMWARE CTRL/B 13 X66ANP30001 MEC PARTS ABO HT17E12-200 17" (HYDIS) 1 - - - - 301 - Acer AL1731 | AL1731 Service Guide - Page 56
: 05/12/03 Time: 21:20:34 R/N:ydr6069j - D1H QUANTITY REQUIRED DWG.NO. X66ANN REV. 0A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # X66ANN30001 MEC PACKING ABO LAM737Y MSV34 1 FJAM7316000 EPS FOAM(L) AM7316 1 - - - - 201 2 FJAM7317000 EPS FOAM(R) AM7317 - Acer AL1731 | AL1731 Service Guide - Page 57
Appendix B: P.C.B.A Assembly 56 - Acer AL1731 | AL1731 Service Guide - Page 58
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: 05/12/03 Time: 21:35:34 R/N:ydr6068j - D1H QUANTITY REQUIRED DWG.NO. 461AA0 REV. 0B C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 001 021 REMARKS # 461AA030001 FIRMWARE CTRL/B VL-903 LAM939F ABO # 461AA030021 FIRMWARE CTRL/B VL-903 LAM737Y COMPAL 1 451AA030001 PCBA - Acer AL1731 | AL1731 Service Guide - Page 69
NO. 451AA0 REV. 1A C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 30 001 011 021 REMARKS # 451AA030001 PCBA CTRL/B DC060014050 D-CONN * 14 DC060015100 D-CONN 15 DC230000300 CONN (ST) 16 DC230304500 CONN 17 DC232100300 CONN. 18 DC232100310 CONN. 19 DC232100320 CONN. VL-903 LAM939F 1 - - Acer AL1731 | AL1731 Service Guide - Page 70
REQUIRED DWG.NO. 451AA0 REV. 1A C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 30 001 011 021 REMARKS # 431AA030001 SMT CTRL/B VL-903 IC 14 SA074140400 SM IC 15 SA298000000 S IC 16 SA743740000 S IC 17 SA745410100 S IC 18 SB0390400T5 SM TRANSISTOR 19 SB3241100T8 SM TRANSISTOR 20 - Acer AL1731 | AL1731 Service Guide - Page 71
Parts-no Date: 05/27/03 Time: 10:38:59 R/N:ydr6068j - D1H QUANTITY REQUIRED DWG.NO. 451AA0 REV. 1A C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 30 001 011 021 REMARKS * 37 SD0132002T8 CHIP RES. 1/16W 20K +-5% 0603 S9 6 6 6 - R108 R154 R162 R89 R93 R97 38 SD0132201T1 - Acer AL1731 | AL1731 Service Guide - Page 72
by Parts-no Date: 05/27/03 Time: 10:38:59 R/N:ydr6068j - D1H QUANTITY REQUIRED DWG.NO. 451AA0 REV. 1A C NO. PART NO. DESCRIPTION SPECIFICATION 30 30 30 001 011 021 REMARKS 61 SE092334K00 S CER CAP .33U 10V +-10% X7R 0805 2 2 2 - - C137 C139 62 SM010013700 S SUPPRE TAI - Acer AL1731 | AL1731 Service Guide - Page 73
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NO. 454AA0 REV. 1A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # 454AA030001 PCBA KEY/B VK-903 LAM939F WAFER CONN 5 DC03E000400 WAFER CONN. 6 DC03E000600 WAFER CONN. 7 DE611000607 SWITCH 8 FCAM9300100 LCD HOLDER HZ6B-2 4 - - - - D1 D2 D3 D4 LYSBK2093 YEL/BLU 3D 3P - Acer AL1731 | AL1731 Service Guide - Page 75
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. 1A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # 455AA030001 PCBA D/D-INV.BOARD ESR) CM999 56uH K 10X8X5 35.5TS AM939 D/D-INV-B-D 9P BL02RN2-R62 (MURATA) SC SCD437CCS02 D2.0mm V/T BLK AM939 POWER EEA-17 INV 1 - - - - ZZZ 4 - - - - D980 D981 D982 D983 4 - - - - C966 C967 - Acer AL1731 | AL1731 Service Guide - Page 77
DWG.NO. 455AA0 REV. 1A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # 435AA030001 SMT D/D-INV.BOARD VP-903 LAM939F * 14 SD0131003T1 CHIP RES. 15 SD0131004T8 CHIP RES. 16 SD013220AT4 CHIP RES. 17 SD014200305 CHIP RES. 18 SD014470200 CHIP RES. 19 SD014511203 CHIP RES. 20 - Acer AL1731 | AL1731 Service Guide - Page 78
REV. 0A C NO. PART NO. DESCRIPTION SPECIFICATION 30 001 REMARKS # X66ANP30001 MEC PARTS ABO 12 MAA70002400 SCREW 13 MAA70003100 SCREW 14 MAAA0019400 SCREW 15 MAB20074202 TAPING SCREW 16 MAB7T002401 SCREW 17 MAB80007400 SCREW AM7321 AL_ALLOY+MSV34 1 - - - - 001 AM7313 SECC1.0 1 -