Acer AL1716 AL1716W Service Guide - Page 3

2 ACER AL1716W Go to cover page 1. Product Specification 1.1 Scope: This document defines the design and performance requirements for the Liteon standard 17" wide flat panel monitor. The display element shall be a 17" inch diagonal, WXGA (1440 x 900) resolution, TFT-LCD (Thin Film Transistor Liquid Crystal Display). Video input signals are Analog D-sub with non-interlaced signaling. Power saving function complies with the DPMS (Display Power Management Standard). 1.1.1 General display parameters Display Area Resolution Display Color Number Display Type Contrast Ratio Brightness Response Time Pixel Pitch Vertical Viewing Horizontal Viewing 17" diagonal,367.2(H)x229.5(V) 1440 x 900 pixels 16.2M colors a-Si TFT active-matrix 500 : 1 typ. 250cd/m2 typ. (Ton + Toff) 8 ms typ. 0.255mm x 0.255mm RGB Vertical Stripes 130 degrees typ, CR>10 140 degrees typ, CR>10 1.1.2 Optical Characteristics The panel model name is HSD170MGW1-A supplied by Hannstar. 1.2.3 Electrical This section describes the electrical requirement of the monitor. The block diagram in Figure 1 illustrates the various electrical sub-system. Function Key Board LCD Panel Inverter Output +5V & DIM & Enable Regulator 5V ~ 3.3V 5V ~ 1.8V 5V +5V Vcc LVDS DIM & Enable Scaler IC GM5726H SST25VF01 XTAL 14.318MHz R.G.B & Hs, Vs EEPROM 24C02 EEPROM 24CL16 Power & Inverter AC 110/220V Input D-SUB Analog Video Input The LCD monitor will contain an interface board, a Power/Inverter board, and a function key board. The interface block will house the flat panel control logic, brightness control logic, and DC-DC conversion to supply the appropriate power to the whole board and LCD panel, and transmitting LVDS signals into LCD Module to drive the LCD display circuit. The inverter block will drive the two CCFLs (Cold Cathode fluorescent Tube). The power block will provide the DC power to interface board and LCD panel. The function key block will provides the OSD control signal, power ON/OFF and LED indicator to the interface board. 1.2 General Requirements: 1.2.1 Test Condition Brightness level at max & contrast level at default full white pattern test mode following spec. Warm up more than 30min, ambient light < 1 Lux, Luminance meter CA210 or BM7 or compatible equipment. 1.2.2 Test Equipment The reference signal source is a calibrated Chroma 2326 or Quantum 801GD video generator. The use of other signal generators during qualification and production is acceptable provided the product complies with this specification. ITEM Frequency Ranges Analog Signal Input Max Pixel clock RGB Input Level RGB Input Impedance Sync Input Signal Sync Input Impedance Connectors AC power Input connectors AC IN 90~264V Power Consumption User's Control Dimming control range (max-min/max) x 100% Pre-Defined Timing Plug and Play Power Saving Input Signal Counter tolerance Normal Operation Standby, Suspend, Active Off Power Off Front Panel Buttons SPEC H 31kHz ~ 83kHz V 56Hz ~ 76Hz 205MHz 0.7Vp-p 75Ω Separate SYNC, Composite Sync 50Ω AC 100V ~ AC 220V ± 10% 50/60Hz, 3 pin AC power cord D-SUB 15 pin 35W Max < 2W < 1W @ (90VAC~240VAC) POWER, MENU, SELECT, + , - 35% typical 18 VESA DDC2B DPMS H ±1kHz, V ±1 Hz