Dell ST2010 - 20" LCD Monitor, Service Manual

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Service Manual
15
Resolution Pixel clock H-sync
V-sy
nc
(unit:MHz) (unit:KHz) (unit
:Hz)
640x480 25.17 31.47 59.94
640x480 31.50 37.50 75.00
720x400 28.32 31.47 70.08
800x600 40.00 37.88 60.32
800x600 49.50 46.88 75.00
1024x768 65.00 48.36 60.00
1024x768 78.75 60.02 75.03
1152x864 108.00 67.50 75.00
1280x800 83.50 49.702 59.81
1280x1024 108.00 63.98 60.02
1280x1024 135.00 79.976 75.02
5
1600x900R 97.750 55.54 59.97
8
3.2 HDMI
Resolution Pixel clock H-sync V-sync
(unit:MHz) (unit:KHz) (unit:Hz)
640x480 25.17 31.47 59.94
640x480 31.50 37.50 75.00
720x400 28.32 31.47 70.08
800x600 40.00 37.88 60.32
800x600 49.50 46.88 75.00
1024x768 65.00 48.36 60.00
1024x768 78.75 60.02 75.03
1152x864 108.00 67.50 75.00
1280x800 83.50 49.702 59.81
1280x1024 108.00 63.98 60.02
1280x1024 135.00 79.976 75.025
1600x900R 97.750 55.54 59.978
4. Power On/Off Sequency
Hardware power On/Off
When power-cord plug into AC socket, power board will provide DC_5V to
interface board.
DC_5V is main voltage for panel and Regulator U101.
DC_3.3V is coming from Regulator U101, DC_3.3v is main voltage for U105.
When DC_3.3V input to U105 and U105 reset circuit active, U105 all registers
will be set to default, that means finish hardware power on.
When pull out power cord from AC socket,the system shut down instantly for no
supply