Dell 2000FP LCD Monitor Service Guide Circuit Operation Theory Introduction This specification describes a 20.1" UXGA TFT LCD monitor with a power adapter. It supports maximal resolution up to 1600×1200 and analog and digital inputs with DPMS. It also supports S-VIDEO and COMPOSITE video inputs. It features:...
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Dell 2000FP LCD Monitor Service Guide Circuit Operation Theory Circuit operation theory Block diagram 140MHz Flash Rom Clock D-SUB 8 Mbits Generator 100MHz GPORT TMDS UXGA PW171 Trans- 1600×1200 mitter Single Link DVI-D VPORT TMDS Video Deinterlacer S-VIDEO Decoder COMP.
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Dell 2000FP LCD Monitor Service Guide Circuit Operation Theory Circuit operation theory A basic operation theory for the interface board is to convert input signal into digital RGB or YUV data. Analog RGB signal is converted to digital signal through ADC. DVI-D signal is converted through TMDS receiver.
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Dell 2000FP LCD Monitor Service Guide Circuit Operation Theory DDC IC for both D-SUB and DVI 24C02 is used to support DDC2B function in both D-SUB and DVI ports. EDID data used for D-SUB and DVI are stored in different 24C02’s respectively.
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Dell 2000FP LCD Monitor Service Guide Circuit Operation Theory The feedback circuit is composed of two resistors. They are R718 and R719, and feedback the DC level 1.25V with error signal . C717 is a compensation capacitor, and R726 is dummy load.
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