Acer H243H H243 LCD Monitor Service Guide - Page 7

Acer 4. Input / Output Signal Specifications 4.1 Video signals Acer -LCD-H243H Analog RGB signal: 0.7Vp-p (Input impedance = 75 Ohm) Sync: TTL level (Input impedance Ú 1k Ohm) Positive and negative sync of Separate Horizontal/Vertical Sync Digital : TMDS Signal: (min) ±200mVpp@24Bit 4.2 Signal Timing Through D-SUB/DVI connectors, this unit can support FH= 31~80 KHz, Fv=55~76Hz, with maximum pixel clock 165MHz input signal and WSXGA+ output. Modes details as below: Mode VGA SVGA XGA VESA SXGA VESA WXGA WXGA+ SXGA+ WSXGA+ UXGA EGA VGA SVGA SXGA Resolution 640x480 640x480 640x480 800x600 800x600 800x600 800x600 1024x768 1024x768 1024x768 1152x864 1280x960 1280x1024 1280x1024 1280x720 1280x800 1360x768 1440x900 1440x900 1400x1050 1680x1050 1600x1200 1920x1080-R 720x400 640x480 832x624 1152x870 VESA MODES Total H Frequency V Frequency Pixel Clock (MHz) 800 x 525 31.469 59.941 25.175 832 x 520 37.861 72.809 31.500 840 x 500 37.500 75.000 31.500 1024 x 625 35.156 56.250 36.000 1056 x 628 37.879 60.317 40.000 1040 x 666 48.077 72.188 50.000 1056x625 46.875 75.000 49.500 1344x806 48.363 60.004 65.000 1328x806 56.476 70.069 75.000 1312x800 60.023 75.029 78.750 1600x900 67.5 75 108 1800x1000 60 60 108 1688x1066 63.981 60.020 108.000 1688x1066 79.976 75.025 135.000 1650x750 44.955 59.940 74.176 1680x831 49.702 59.810 83.500 1792x795 47.712 60.015 85.500 1904x931 55.935 59.887 106.500 1936x942 70.635 75.000 136.750 1864x1089 65.317 59.978 121.75 2240*1089 65.290 59.954 146.250 2160x1250 75.000 60.000 162.000 2080x1111 66.587 59.934 138.50 IBM MODES 900x449 31.469 70.087 28.322 MAC MODES 864x525 35 66.66 30.24 1152x667 49.722 74.55 57.28 1568x909 68.700 75.000 84.520 Note: 1. Non-interlace signals only (An interlace signal cannot be display) 2. Please refer to F/W specification for more detail 3. Each frequency of Power Macintosh and Sun Ultra is a reference value 4.3 Timing requirements The LCD monitor must be capable of displaying standard resolutions within the vertical frequency range of 55 ~ 76 Hz and the horizontal scan range of 31 ~ 80 KHz with maximum pixel clock of 190MHz. 6