LG KE990 Service Manual - Page 68

3. TECHNICAL BRIEF 3.11.4 LCD Interface The ZR3453X LCD port supports mobile LCD panels of upto VGA size and upto 60fps refresh rate. There are various bus formats and color depth up to 18-bit (262K colors). [ Block Diagram ] N12 VIDI N7 VIDJ VIDK L8 VIDL VIDM P13 L9 VIDN N13 VIDO M11 M9 VIDP B5 LD0 A5 LD1 B6 LD2 B4 LD3 LD4 A4 LD5 C3 LD6 A3 LD7 A2 LD8 A1 B2 LD9 B1 LD10 B3 LD11 C1 LD12 C2 LD13 C5 LD14 LD15 C6 LD16 D3 LD17 D1 LCS0N A6 D2 LCS1N D5 LRDN C4 LWRN D4 LA0 E1 LCK E4 LHS LVS E3 LACT E2 MMP_CAM_DATA[0] MMP_CAM_DATA[1] MMP_CAM_DATA[2] MMP_CAM_DATA[3] MMP_CAM_DATA[4] MMP_CAM_DATA[5] MMP_CAM_DATA[6] MMP_CAM_DATA[7] MMP_LCD_DATA[0] MMP_LCD_DATA[1] MMP_LCD_DATA[2] MMP_LCD_DATA[3] MMP_LCD_DATA[4] MMP_LCD_DATA[5] MMP_LCD_DATA[6] MMP_LCD_DATA[7] MMP_LCD_DATA[8] MMP_LCD_DATA[9] MMP_LCD_DATA[10] MMP_LCD_DATA[11] MMP_LCD_DATA[12] MMP_LCD_DATA[13] MMP_LCD_DATA[14] MMP_LCD_DATA[15] TP300 TP301 MMP_LCD_CS_N MMP_LCD_RD_N MMP_LCD_WE_N MMP_LCD_ADS MMP_LCD_VSYNC_IN MMP_LCD_VSYNC_OUT [ Schematics ] 3.11.5 TV out Interface The display data is converted to video with video-encoder according to CCIR-601 and sampled by 10bit DAC and transmitted over an analog pad as a composite video signal. This mode is used in a system where ZR3453X is connected gluelessly to a TV screen that requires real-time display data. ZR3453X generates TV signal according to the NTSC and PAL standards. The TVDATA pin can drive a full video level signal directly into a 75 terminated TV cable. TV_OUT C331 22p L300 2.2uH C334 330p C335 330p R338 75 R339 390 G14 F13 TVDATA TVREF 392ohm 1% [ Block Diagram ] Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 69 - [ Schematics ] LGE Internal Use Only