Circuit Description
Samsung Electronics
13-1
13. Circuit Description
13-1 Overall Block Description
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Si g n al
P o w e r
L i g h t
The DLP TV is largely divided into: Power part, Engine part and Main + Rear parts.
The ass'y that consists of the DMD board, Detect (Actuator) board, lamp, ballast and optical devices is called the Engine.
The main + rear board parts receive the AV signals to output voice signals and process the remote control signals.
The engine part displays the video data on the screen, which is generated in the main + rear boards.
The AV signals are input through the main and rear boards. CXD3815 processes the MUX and decoding while S5H2201
processes the CPU functions, MPEG and I2S.
Finally, the improved DNle image is sent to the DMD engine board.
The final data by DNle is processed in DDP3021 of the DMD board to display the image on the DMD panel. This image is created
by the light of the lamp through the color wheel which is enlarged and projected onto the screen.
This is the DLP of the L6,L7,L8,K2 or K3 type that the actuator operates additionally during this process.
The power terminal generates the DC power needed for the product and sends it to the analog board. The analog board supplies
the power to the digital and DMD boards.
In the meantime, the power source board supplies DC220V - 400V directly to the ballast in order to light the lamp.
The ballast is like a stabilizer for lighting the lamp.
The ultimate purpose of the TV set is to project an image onto the screen and output the voice signals synchronized with the
image. And based on the DMD panel used, a 1-panel TV requires a color wheel while a 3-panel TV does not. The HD3,HD4,HD5
panel needs an actuator while the HD2 does not. However, the drive mechanism and the overall block structure of the two panels
are the same.
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