User manual CTX S720G Service Manual

[. . . ] SCOPE Service Manual S720G This specification defines the design and performance requirements for the 17" SXGA TFT LCD display monitor. S720G Feature Description 1 2 3 4 5 6 7 8 9 10 10. 1 10. 2 10. 3 10. 4 10. 5 10. 6 10. 7 10. 8 10. 9 10. 10 11 12 Universal input AC/DC power supply inside the monitor Analog RGB interface (VGA ) 30~80KHz, 59~75Hz, 135MHz Digital Visual interface(DVI-D) TMDS 1 Channel 165 MHz 17" SXGA 1280*1024, TFT LCD panel Function keys * 5 : Power On/Off, ESC, (up), (down), (enter) contrast function, for brightness function , ESC Direct Acess function keys : for for audio mute function Green/Amber LED indicator for power on/power saving Plug & play support with DDC2B protocol installed. Power saving mode compliant with Energy Star OSD (on screen display) MENU operation Brightness adjustment Contrast adjustment Auto tune function (VGA) Color selection Image adjustment Position adjustment Language selection Reset function Source selection(DVI/VGA) 1W * 2 Audio function inside the monitor Volume adjust by OSD OSD information of input status 2. INPUT REQUIREMENTS 2. 1 Input Power 2. 1. 1. [. . . ] Note 2 : Dark pixels in full white pattern Note 3 : fault Pixel / Sub-Pixel : The pixel or sub-pixel is abnormal but not bright/dark pixel. Note 4 : Fault Cluster : Two or more Pixels/Sub-pixels with faults within 5 * 5 block of pixels. 3. 2 Modes and Timing Comparability 3. 2. 1Analog Input Supported Timing VESA Standard mode : Display Format Horizontal Dots Vertical lines Horizontal Frequency Vertical Frequency ( Hz ) Pixel Rate ( MHz ) H. Polarity A S ( Period ) B S ( Pulse Width ) C S ( Back Porch ) D S ( Active Area ) E S (Front Porch ) V. Polarity O ms ( Period ) P ms ( Pulse Width ) IBM VGA 720 640 400 480 31. 469 70 59. 94 28. 322 25. 175 31. 778 3. 813 1. 907 25. 422 0. 636 -5+ 16. 683 0. 064 VESA 640 480 37. 861 72. 809 31. 5 26. 413 1. 270 4. 063 20. 317 0. 763 13. 735 0. 079 VESA 640 480 37. 5 75 31. 5 26. 667 2. 032 3. 810 20. 317 0. 508 13. 333 0. 080 VESA 800 600 37. 879 60. 317 40 + 26. 4 3. 2 2. 2 20. 0 1. 00 + 16. 579 0. 106 VESA 800 600 48. 077 72. 188 50 + 20. 8 2. 4 1. 28 16. 0 1. 12 + 13. 853 0. 125 VESA 800 600 46. 875 75. 000 49. 5 + 21. 333 1. 616 3. 232 16. 162 0. 323 + 13. 333 0. 064 CTX CTX Service Manual S720G Display Format Horizontal Dots Vertical lines Horizontal Frequency Vertical Frequency ( Hz ) Pixel Rate ( MHz ) H. Polarity A S ( Period ) B S ( Pulse Width ) C S ( Back Porch ) D S ( Active Area ) E S (Front Porch ) V. Polarity O ms ( Period ) P ms ( Pulse Width ) Q ms ( Back Porch ) R ms ( Active Area ) S ms ( Front Porch ) VESA 1024 768 48. 363 60. 004 65. 0 20. 667 2. 092 2. 462 15. 754 0. 369 16. 666 0. 124 0. 6 15. 88 0. 062 VESA 1024 768 56. 746 70. 069 75 17. 707 1. 813 1. 920 13. 653 0. 321 14. 272 0. 106 0. 513 13. 599 0. 054 VESA 1024 768 60. 023 75. 029 78. 75 + 16. 660 1. 219 2. 253 13. 003 0. 203 + 13. 238 0. 050 0. 466 12. 795 0. 017 VESA 1152 864 67. 5 75 108 + 14. 815 1. 185 2. 370 10. 667 0. 593 + 13. 333 0. 044 0. 474 12. 8 0. 015 VESA 1280 1024 63. 981 60. 013 108 + 15. 631 1. 180 2. 065 11. 797 0. 590 + 16. 663 0. 047 0. 594 16. 006 0. 016 VESA 1280 1024 79. 976 75. 025 135 + 12. 054 1. 067 1. 837 9. 481 0. 119 + 13. 329 0. 038 0. 475 12. 804 0. 012 Timing Chart -6- CTX CTX Figure. B C D A E Video 3. 2. 2 Digital Input DVI Support mode 640 * 480 @60Hz 800 * 600 @60Hz 1024*768 @60Hz 1280*1024@60Hz 3. 3 Plug & Play DVI support VESA DDC 2B+ standard DDC 2B data transmission only for I2C BUS interface card. 3. 4 Scanning characteristics Horizontal frequency Refresh rate 3. 5 Audio Module 3. 5. 1. Frequency Response ±3dB : VGA DVI(DDC description) 30KHz to 80KHz 30KHz to 66KHz 59Hz to 75Hz 59Hz to 61Hz DVI(Input signal range) 30KHz to 80KHz 59Hz to 75Hz Stereo BTL audio output amplifier with DC volume control with two 1W speakers. 1Vrms 1W * 2 (10% THD, 1KHz) 0. 3% (Typ. ) (0. 5W * 2, 1KHz) 450Hz ~ 20KHz 3. 5. 6. Channel unbalance (output power): 1dB (max. ) -7- CTX CTX 3. 6 User Controls and Indicator 3. 6. 1 Power ON/OFF Switch 3. 6. 2 LED Indicator 3. 6. 3 OSD 3. 6. 3. 1 Buttons 3. 6. 3. 2 OSD Menu Level 3. 6. 4 Hot Keys Function 3. 6. 4. 1 Contrast ( ) ESC , , , Service Manual S720G The switch control scaler power down and turn off panel. The LED color shall indicate power status as shown in paragraph 3. 7 See Table 2. [. . . ] SYSTEM BLOCK DIAGRAM -13- CTX CTX Service Manual S720G 6. inverter board I/O connections -14- CTX CTX Service Manual S720G 7. [. . . ]