Acer X193 X183H / X193HQ Service Guide - Page 6

1. Product Specification (continued) ACER X193HQ 5 Go to cover page 1.3.4.3 Mode Recognition Pull-in The monitor shall recognize preset modes within a range of +/-1KHz whichever is less for horizontal ; and within +/-1Hz for vertical. 1.3.4.4 User Display Modes In addition to the factory pre-set video modes, provisions shall be made to store up to 9 user modes. If the current mode is a user mode, the monitor shall select its previously stored settings. If the user alters a setting, the new setting will be stored in the same user mode. The user modes are not affected by the pre-set command. If the input signal requires a new user mode, storage of the new format is automatically performed during user adjustment of the display (if required).( Please see Note.(4) ) Preset timing Chart Preset Timing Chart Item No Resoulution H-Sync V-Sync Band Width Polarit Source (KHz) (KHz) (MHz) H V 1 T103 640x480@60Hz 31.469 59.941 25.175 - - VESA 2 T173 640x480@72Hz 37.861 72.809 31.500 - - VESA 3 T109 640x480@75Hz 37.500 75.000 31.500 - - VESA 4 T182 [email protected] 35 66.66 30.24 - - MAC 5 T102 720x400@70Hz 31.469 70.087 28.322 - + VGA 6 T104 800x600@56Hz 35.156 56.250 36.000 + + VESA 7 T116 800x600@60Hz 37.879 60.317 40.000 + + VESA 8 T117 800x600@72Hz 48.077 72.188 50.000 + + VESA 9 T110 800x600@75Hz 46.875 75.000 49.500 + + VESA 10 T108 [email protected] 49.722 74.55 57.28 - - VESA 11 T118 1024x768@60Hz 48.363 60.004 65.000 - - VESA 12 T157 1024x768@70Hz 56.476 70.069 75.000 - - VESA 13 T141 1024x768@75Hz 60.023 75.029 78.750 + + VESA 14 T203 1152x870@75Hz 68.700 75.000 84.520 - - 15 T126 1152x864@75Hz 67.5 75 108 + + 16 T161 1280x960@60Hz 60 60 108 + + VESA 17 T179 1280x1024@60Hz 63.981 60.020 108.000 + + VESA 18 T131 1280x1024@75Hz 79.976 75.025 135.000 + + VESA 19 T339 1280x720@60Hz 44.955 59.940 74.176 + + 20 T213 1280x800@60Hz 49.702 59.810 83.500 + + 21 T278 1366x768@60Hz 47.712 59.790 85.500 - - 1.3.5 Controller Requirements 1.3.5.1 General Requirements The monitor shall include a controller capable of converting the analog RGB signal from a standard SXGA resolution video controller in the CPU to a signal which can be displayed on the panel. The controller will include a PLL, A/D converters, LVDS transmitter and other circuitry necessary to perform its function. The PLL shall be stable enough to ensure that a static image from the CPU is placed in the same physical location on the flat panel in each frame. 1.3.5.2 Video Stretching The monitor shall contain provisions to "stretch" the video signal, so that an input signal from the computer in any resolution smaller than 1366 x 768 is automatically expanded to fill the entire screen. 1.3.5.3 Panel Timing and Interface The controller supplied with the monitor shall control all panel timing. This controller shall adequately insulate the monitor from the computer, so that no possible combination of input signals from the computer shall cause damage to the flat panel or any other component of the monitor. The LCD panel interface shall support the TFT standard. 1.3.6 DC - AC Inverter Requirements The DC-AC inverter is on the power board. The frequencies used by the DC-AC inverter used to power the backlight shall be chosen so as to prevent any noticeable effects on the flat panel (such as a rolling effect). 1.3.7 Power Supply Requirements The AC to DC converter power supply for the monitor shall be an external AC to DC converter "brick" This brick shall have an IEC receptacle for main power input and a pin - in ---socket for DC power out. The brick shall provide sufficient power for both the monitor and the backlight assembly, and shall meet requirements specified in Table 2. Table 2. AC TO DC Converter Requirements Input Voltage Range Input Frequency Range Power Consumption Line Fuse Initial Cold Start Inrush Current Hot Start Cycel Under Voltage Line Transient Table 2 AC to DC Converter Requirements The operating range shall be from 90 to 132 and 195 to 265 AVC sinusoidal for all models specified. Input power frequency range sha;; be from 457.to 63 Hz over the specified input voltage range. Power consumption for the monitor shall be less th3an0W over the specified voltage and frequency ranges. In suspend or sleep mode the power consumption will be less than 2W. The AC input shall be fused and become electrically open as a result on an unsafe current level. The fuse many not be user replabclee. The power supply shall start and function properly when under full load, with worst case conditions of input voltage, input frequenct, operating temperature, and cold backlight lamps. The inrush current must be limited to 30A when operated at 120VAC, and 50A when operated at 220VAC. Inrush current is measured at an ambient temperature of 25 oC, with the unit temperature stabilized in the pow-eorff. The power supply shall be damaged when switched ON for one second and OFF for one second for seven consecutive after operating for one hour at full load, 25 oC, and nominal input line voltage. The power supply shall contain protectniocircuitry such that the application of an input voltage below the minimum specified in this table shall not cause damage to the power supply unit nor cause failure of the input. The power supply shalloperate within IEC 80-14 (± 1KV) and IEC 801-5 (± 2KV) for the domestic U.S. version. The UPS power supply shall operate and comply with CE mark.