Associated with the HDMI key to decrypt the data stored outside the HDMI IC604 memory IC605 (AT24WC08W), which is approved by the HDMI, licensing data. In addition, stored within the IC605 LCD TV supports audio and video format, receiving and receiving device configuration and state information. Receive only under memory IC605 IC604 key received from the decrypted data in real time, will be able to correctly display images.

Third, video control circuit analysis
IC502 video control circuits for video control chip (SVP-LX61) as the core component, as shown in figures 11-9, 11-10.

SVP-LX61 is a Trident (Trident) produced the video chip, this chip includes digital video decoding, deinterlacing and image zoom function circuits, and equipped with the developed world the winner of DCRe (Digital Cinema HD engine) technology, as well as specially optimized for display format 1, 080i. SVPLX61 production of LCD TV, image-level good, fresh colors, supports dynamic image processing, but the noise is relatively large.

1.IC502 (SVP-LX61) working conditions
IC502 (SVP-LX61) to work properly, you must have the following conditions.

Is the power supply properly. In other words, IC502 corresponding pin should have a normal LX_VL1.8, LX_VA1.8, B3.3VD power supply.

Second, clock oscillator signal is normal. IC502 AD1 AE1 foot external clock crystal X500 (14.31 818 MHz), generates a clock signal after you enter inside the IC502, vertical sync signal of cooperation, synthesized by the IC502 crossover and for the IC502 internal circuit to provide the various clock signals for work, to synchronize the circuit within the IC502 coordination.

Third, reset signal is normal. IC502 A6 PIN to reset client receives 30 feet from the Vice-IC407 micro-controller signal, when powered on, the IC407 output a reset signal, complete the reset IC502.

2. image processing circuit I

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