Acer X193 X183H / X193HQ Service Guide - Page 3

2 ACER X193HQ Go to cover page 1. Product Specification 1.1 SCOPE This document defines the design and performance requirements for a 19W inch diagonal , flat panel monitor .The display element shall be a WXGA(1366X768) resolution TFT-LCD (Thin Film Transistor Liquid Crystal Display).16.7M color images are displayed on the panel.Video input signals are analog RGB (0.7Vp-p). When the systemis powered-on , previously stored screen parameters for a pre-defined mode will be recalled if the operating mode is one of stored in memory( 21 factory , 9 users timing ).This monitor operates normal by noninterlaced mode. DDC (Display Data Channel) function is DDC2Bi compliance Power saving function complies with the DPMS (Display Power Management Signaling) standard. 1.2 GENERAL REQUIREMENTS 1.2.1Test Condition Brightness level & contrast level max. Full white pattern test mode following spec. Warm up more than 1 hr, ambient light < 10 Lux , Luminance meter CA110 or BM7 or same equipment . 1.2.2 Test Equipment The reference signal source is a calibrated Chroma 2135 video generator or higher.The use of other signal generators during qualification and production is acceptable provided the product complies with this specification. 1.3 ELECTRICAL This section describes the electrical requirement of the monitor block diagram in Figure 1 illustrates the various electrical sub-system. The LCD monitor consists of an interface board , a power board , a function key board and two speaker(1W)(with audio) The interface board will house the flat panel control logic , brightness control logic, audio function control (option), key function control, DDC and DC to DC conversion to supply the appropriate power to the whole board and LCD flat panel , and transmitting LVDS signals into LCD flat panel module to drive the LCD display circuit .The power board will support main power DC5V to interface board and drive the two CCFLs (Cold Cathode Fluorescent Tube).The interface board provides the power ON / OFF control over the whole monitor and control for DPMS LED indicator to function key board. Monitor Specifications Signal Input （Analog） ITEM Signal Input （Digital） Connector Power Consumption User'sControl Pre-Defined Timing Plug and Play Power Saving Input Signal Counter Tolerance Frequency Pixel Clock Video Input Display Pixels Syne Signal Frequency Pixel Clock Video Input Display Pixels AC Input Input Connector Audio Jack(Optional ) AC in 100V~240V) Front OSD Factory User SPEC Analog H:31Hz~83Hz V:56Hz~75Hz 135MHz(Max) Analog :07Vp-p 640x480 (VGA)~1366x768(WXGA) Separate SYNC for TTL (N or P) Digital H:31Hz~83Hz V:56Hz~75Hz 135MHz(Max) Analog :07Vp-p Input Inpedance 75Ω 640x480 (VGA)~1366x768(WXGA) AC 100V~AC240V 10% 50/60Hz ,3pin AC Power Cord D-SUB 15 pin &DVI -D Audio Input 3.6 Φ Active 30W(with Audio), active 25W ,Power Saving