Acer AL716 AL716 Monitor Service Guide
Acer AL716 Manual
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- Acer AL716 | AL716 Monitor Service Guide - Page 1
LCD monitor General specification ...4 2.3 LCD Panel Specification ...5 2.4 Input Signals...12 Supported Timing...13 2.5 CONTROLS ...16 2.6 White Color Temperature...18 2.7 POWER 30 5.6 Connector locations...32 6. TROUBLESHOOTING ...34 6.1 Main Procedure...34 7. Power Line Transient Test (IEC 61000 - Acer AL716 | AL716 Monitor Service Guide - Page 2
most current revisions of following regulations 42 10.2 Electrostatics Discharge (ESD)...43 11.QUALITY AND RELIABILITY...44 11.1 Quality Assurance ...44 11.2 Reliability ...44 Appendix A: PART LIST...45 Appendix B: PCBA Assembly 53 Appendix C: DISPLAY UNIT ASSEMBLY 82 2 - Acer AL716 | AL716 Monitor Service Guide - Page 3
1. INTRODUCTION 1.1 Scope This specification defines the requirements for the 17" MICRO-PROCESSOR based Multimode supported high resolution color LCD monitor, This monitor can be directly connected to general 15 pin D-sub VGA connector and DVI-D digital connector, eliminates the requirement of - Acer AL716 | AL716 Monitor Service Guide - Page 4
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 10.76 2.2 LCD monitor General specification Panel Type : 17 " active matrix color TFT LCD 1). Hydis LT17E12 - Acer AL716 | AL716 Monitor Service Guide - Page 5
80KHz(digital) y Vertical Frequency 56Hz ----75Hz Plug & play : Support VESA DDC2B functions Power Input voltage : Single phase, 50/60HZ, 100VAC to 240VAC ±10% Total output power : 48 Watt max. 2.3 LCD Panel Specification 2.3.1 LCD Panel Model (Hydis LT17E12-200) • Display Type • Resolution - Acer AL716 | AL716 Monitor Service Guide - Page 6
) • Display Type • Resolution • Display Dot • Display Area • Pixel Pitch • Display Color • Lamp Voltage • Lamp Current • Weight • Optical Specifications active matrix color TFT LCD 1280 x 1024 pixels 1280 x (RGB) x 1024 337.92mm(H) x 270.34mm(V) 0.264mm(H) x 0.264mm(V) 262K (6 bit color) 700 Vrms - Acer AL716 | AL716 Monitor Service Guide - Page 7
The following items are measured under stable conditions. The optical characteristics should be measured in a dark room or equivalent state with the methods shown in Note(4). ŠMeasuring equipment : TOPCON BM-5A, BM-7, PHOTO RESEARCH PR650 (Inverter Freq. : 54kHz) *Ta =25 ± 2°C, VDD=5V, fv=60 Hz, - Acer AL716 | AL716 Monitor Service Guide - Page 8
Luminance with all pixels white (Gmax) CR Luminance with all pixels black (Gmin) Note 3) Definition of Response time: Sum of TR , TF 8 - Acer AL716 | AL716 Monitor Service Guide - Page 9
Note 4) After stabilizing and leaving the panel alone at a given temperature for 30 min, the measurement should be executed .Measurement should be executed n a stable, windless ,and dark room.30 min after lighting the back-light. This should be measured in the center of screen. Dual lamp current :13 - Acer AL716 | AL716 Monitor Service Guide - Page 10
Notes 5) Definition of Luminance of White : measure the luminance of white at center point. Notes 6)Definition of 9 points brightness uniformity (Measuring points: Refer to the Note 5) Bmin BUNI=100 Bmax Bmax: Maximum brightness Bmin: Minimum brightness Notes 7) Definition of Flicker level Flicker - Acer AL716 | AL716 Monitor Service Guide - Page 11
Note 8) Definition of Crosstalk (Refer to the VESA STD) The calculation for shadowing is made from the 2 luminance measurements Gbkg and Lsh, as follows: Lmax -Lmin CT x100 % Lmin Where Lmax is the larger value of Gbkg or Lsh , and Lmin is the smaller of the two. ♦ To determine background and - Acer AL716 | AL716 Monitor 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 24KHz --80KHz(analog), 31.5- 80KHz(digital) • Vertical Frequency 56Hz ---------75Hz DISPLAY MODES MONITOR MODE NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 - Acer AL716 | AL716 Monitor Service Guide - Page 13
48 248 108 3 1 38 144 16 248 135 3 1 38 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 - Acer AL716 | AL716 Monitor Service Guide - Page 14
2.4.4 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. 2.4.5 11 GROUND 12 SDA 13 H.SYNC 14 V.SYNC 15 SCL Color of plastic parts: Blue (PC99) 5 1 10 6 15 11 D-sub connector 14 - Acer AL716 | AL716 Monitor Service Guide - Page 15
for DVI-D (24pin) connector Pin - Assignment of DVI -D connector : 1 TX2- 9 TX1- 17 TX0- 2 TX2+ 10 TX1+ 18 TX0+ 3 Shield (TX2 / TX4) 11 Shield (TX1 20 NC 5 NC 13 NC 21 NC 6 DDC-Serial Clock 14 +5V power *) 22 Shield (TXC) 7 DDC-Serial Data 15 Ground (+5V) 23 TXC+ 8 No Connect 16 - Acer AL716 | AL716 Monitor Service Guide - Page 16
2.5 CONTROLS 2.5.1 Control panel (monitor front panel) 1. Stereo Speakers (AM777/677) 2. Speaker Volume Control (AM777/677) 3. Soft Power Switch 4. DC Power-On Indicator 5. Function select Buttons 6. Adjustment Control Buttons 7. External Headphone Jack(AM777/677) Note: When OSD Menu is off, press - Acer AL716 | AL716 Monitor Service Guide - Page 17
. The range is from 0 to 100 scales. Comment: • 1280x1024: • 60 HZ: • VER 1.00: Current mode resolution. Current mode vertical frequency±1Hz. Firmware revision. z Other features: 17 - Acer AL716 | AL716 Monitor Service Guide - Page 18
If no further signal, then it shows "No Signal" and enter power saving mode. 2.6 White Color Temperature White color temperature is 4 preset u'v' < 0.01* - User should follow "Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM's". (http://www.microsoft.com/hwdev/tech/ - Acer AL716 | AL716 Monitor Service Guide - Page 19
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 AL716 | AL716 Monitor Service Guide - Page 20
power receptacle. 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). 2.9 Audio Technical specification 500m Vrms 1KHz 500m Vrms 1KHz - 500m Vrms 1KHz - - Spec. Comment Typ. Max. 5 - 500 800 - 6 d - Acer AL716 | AL716 Monitor Service Guide - Page 21
display control board is design to directly receive R, G, B Analog and TMDS DVI signal to optimum LCD timing signals so as to construct a high display quality LCD monitor. 3.2 Features • Support for image expansion and reduction. • On board micro-processor to detect display timings and control user - Acer AL716 | AL716 Monitor Service Guide - Page 22
3.3 BLOCK DIAGRAM System Block Diagram 3.4 Connector Locations 22 - Acer AL716 | AL716 Monitor Service Guide - Page 23
40 3 11 15 Pin # Signal Name Description 1 RX2- 2 RX2+ 3 RX2 SHILD 4 NC TMDS negative differential 16 TMDS positive differential output, 17 channel 2 Shield for channel 2 TMDS 18 do not connect 19 HTPLG RXORXO+ RX0 +5V Supply TMDS negative differential output, channel 0 TMDS - Acer AL716 | AL716 Monitor Service Guide - Page 24
3.6.2 CN5 PIN No. 38 39 40 35 36 37 1,2,3 17 16 14 13 11 10 6,9,12 8 7 15,18,21,24 5 Data of Pixel 3 (ODD data) Positive Sampling Clock (ODD data) Negative Sampling Clock (ODD data) Power Ground Positive Transmission Data of Pixel 2 (ODD data) Negative Transmission Data of Pixel 2 (ODD data) - Acer AL716 | AL716 Monitor Service Guide - Page 25
Output (Head Phone) Analog GND Audio Right+ Output Audio Right- Output Comment Audio Power Audio GND GND GND Brightness Adjustment Power Saving Back Light ON/OFF From USB power From main power Comment Power saving mode Monitor is ON GND KEY- ON/OFF KEY-Brightness Increase KEY-Brightness Decrease KEY - Acer AL716 | AL716 Monitor Service Guide - Page 26
SCJ-0348-C 4.4 Connector pin Assignment 4.4.1 J4 Pin NO. 1 2 3 4 5 6 7 8 Signal KEY-LEFT KEY-RIGHT KEY-DOWN KEY-UP KEY-POWER GND LED-G LED-Y Maker E&T E&T ACER ACER SC Number of pins 8 11 2 2 9 Comment Function select counter-clockwise key Function select counter-clockwise key Adjust down key - Acer AL716 | AL716 Monitor Service Guide - Page 27
Audio Output R+ Audio Output R- Comment Audio Output L+ Audio Output L- Comment Audio Output R+ Audio Output R- 4.5 Switch definition Location Definition S1 Power ON/OFF S4 Function select by clockwise direction S5 Function select by counter-clockwise direction S2 Adjust up S3 Adjust - Acer AL716 | AL716 Monitor Service Guide - Page 28
control board and lighting up the back-lights of LCD module. 5.2 Power supply ( AC to DC section) 5.2.1 input Voltage Range The monitor shall operate within specification over the range of 90 to 265 VAC power supply. 5.2.2 Input Frequency Range Input power frequency range shall be from 47.5 to 63 - Acer AL716 | AL716 Monitor Service Guide - Page 29
5.3 Inverter (DC to AC Section) 5.4 Electrical characteristics 5.4.1 FOR AU PANEL M170EN05 MIN. TYP. MAX. COMMENT INPUT VOLTAGE INPUT CURRENT 11.4V -------- 12.0V 2A 12.6V -------- 12V±5% Vin=12V, Vbrite=3.3V Normal BACKLIGHT VOLTAGE -------- 700V rms. -------- LAMP CURRENT 3mA rms. - Acer AL716 | AL716 Monitor Service Guide - Page 30
5.5 Connector locations 5.5.1 Connector type - Location J970, J971, P803 P801 Type SM04(4.0)B-BHS-1-TB 96113-1203 SA-4S-066 Maker JST E&T AC Inlet Number of pins 4 10P 3 5.5.2 Connector pin assignment 5.5.2.1 J970, J971 Pin NO. 1 2 3 3 Signal HV HV NC LV Comment High voltage for lamp High - Acer AL716 | AL716 Monitor Service Guide - Page 31
5 6 7 8,9,10 BRITE Sleep Enable Vcc Brightness adjustable range: 0.4V~3.3V Power saving control(Active High) Normal:-0.3~1.0V. Sleeping:2.0~5.5V Backlight ON/OFF control (Active High) ON:1.5~5.5V OFF:-0.3~1.0V. +5Vdc supply to Interface BD, always on. 5.5.2.3 - Acer AL716 | AL716 Monitor Service Guide - Page 32
. Signal Comment 1 +5Vaudio +5Vdc for Audio ckt 2 GND/Audio Ground for Audio ckt 3,4 GND Common Ground 5 BRITE Brightness adjustable range: 0.4V~3.3V 6 Sleep Power saving control(Active High) 32 - Acer AL716 | AL716 Monitor Service Guide - Page 33
7 Enable 8,9,10 Vcc 5.6.2.3 P62 For AM777/AM677 Pin NO. Signal 1 Audio-RIN 2 GND 3 Audio-LIN Normal:-0.3~1.0V. Sleeping:2.0~5.5V Backlight ON/OFF control (Active High) ON:1.5~5.5V OFF:-0.3~1.0V. +5Vdc supply to Interface BD, always on. Comment Audio Right Input Audio Left Input 33 - Acer AL716 | AL716 Monitor Service Guide - Page 34
6. TROUBLESHOOTING 6.1 Main Procedure 34 - Acer AL716 | AL716 Monitor Service Guide - Page 35
6.1.1 Power Circuit and Backlights Troubleshooting 35 - Acer AL716 | AL716 Monitor Service Guide - Page 36
6.1.2 Performance Troubleshooting 36 - Acer AL716 | AL716 Monitor Service Guide - Page 37
6.1.3 Function Troubleshooting 37 - Acer AL716 | AL716 Monitor Service Guide - Page 38
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 test, but the I/O line - Acer AL716 | AL716 Monitor Service Guide - Page 39
WAVESHAPE 39 - Acer AL716 | AL716 Monitor Service Guide - Page 40
5 negative at the selected points. 8.3 The surge will be applied between lines and between 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 - Acer AL716 | AL716 Monitor Service Guide - Page 41
9. ENVIROMENT REQUIREMENT 9.1 Operating Temperature Relative Humidity Altitude 5°C ~ 40°C 20% to 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 • - Acer AL716 | AL716 Monitor Service Guide - Page 42
/EPA TCO 1999 (option) TUV/GS FCC 47 CFR, Chapter 1, Subchapter A, Part 15, Subpart B CISPR 22 CE LVD Directive (73/23/EEC) CE EMC requirements. Requirements of power saving according to NUTEK Spec. 803299/94/96, Power Frequency Magnetic Field IEC 61000-4-11 Voltage DIP/Interruption Specification - Acer AL716 | AL716 Monitor Service Guide - Page 43
or system reset. Class B : Temporary degradation or loss of function or performance which is selfrecoverable Class C : Normal 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 - Acer AL716 | AL716 Monitor Service Guide - Page 44
AND RELIABILITY 11.1 Quality Assurance Unless otherwise specified in this specification or the applicable purchase order, the supplier shall be responsible or performing inspections that are sufficient to assure that the parts supplied meet the requirements specified herein. 11.2 Reliability The