采用RT978方案（MT8227）液晶电视维修手册（含电路图）

分类：电子电工日期：2023-03-26 点击：0

LC-32TL2800 机芯维修手册 1 RT978（MT8227）机芯售后维修 MTK8227 方案 LCD TV 为面向国内市场的直下式 LED 背光液晶电视机， TV 支持 PAL/SECAM/NTSC3.58 制式。 TL2800 系列：LC-32TL2800。一、安全说明 1.1 更换、焊接任何元器件和拨/插连接线时，必须将电源切断。 1.2 整个检修过程必须做好防静电措施： a）不得随便用手触摸 IC； b）使用防静电烙铁； c）焊接工必须戴防静电手套。 1.3 更换具有特殊安全要求的元器件时，应参照明细表，不得随意更换规格和型号。注：在检修本机之时请严格遵守上述的安全说明。二、主要功能： 1．16：9 、4：3 ； 2．支持标清和高清模式（480P，576i，720p，1080i，1080P）； 3．宽电源、低待机功耗（ < 0.5W ）； 4．端口：输入端口电视 1 路视频 2 组分量 1 组注：视频 1 和分量使用同一组 RCA 音频输入。电脑 1 组（音频输入为耳机接口） HDMI 1 路 USB 1 路输出端口视频输出 1 组同轴输出 1 路 5．支持简体中文、英文 OSD 语言； 6．图形 OSD,漂亮的视窗界面； 7．主通道数字解码器带 3D 梳状滤波器； 9．支持 USB 升级软件； 10．多种数字图像处理技术； 11．高效率 D 类伴音功放，高品质音效输出； 12．内置电源宽电压输入：AC 100V~240V,50HZ/60HZ。 LC-32TL2800机芯维修手册 2 三、基本工作原理：（整机的工作流程图附原理图） 1、模拟信号流程：天线接收到的信号送入模拟高频头 UT5，高频头受主芯片 U1 （MT8227）的 I2C 指令（SDA、SCL）控制，选择合适的频道，进行正确的制式切换，经高放及混频后输出中频信号给 U1(MT8227)，由主芯片内部对模拟中频进行数字化处理。 U1（MT8227）包含 3 组独立音频信号输入，音频信号送入主芯片进行处理，并直接输出音频信号 HP_L（PIN97）和 HP_R（PIN99）经过滤波分压到数字功放 U506（PAM8006）进行放大，经低通滤波网络后驱动喇叭重现声音。 U1（MT8227）内建数字化中频放大电路，高频头 UT5 直接输出差分模拟中频，经外部滤波网络后，进入 U1 （MT8227）时行 AD 转换，并进行数字中频处理，输出图声信号、声音信号，把图象切换到数字解码 Decoder、图像缩放 SCALER、 OSD Merge（迭加）、Gamma 校正后，输出 LVDS 信号驱动液晶显示屏显示图象。 AV 信号、YPBPR 信号、VGA 信号经匹配电阻和滤波电路后进入主芯片内进行视频开关切换、模数转换 ADC、数字解码 Decoder、图像缩放 SCALER、OSD Merge （迭加）、Gamma 校正后，输出 LVDS 电平驱动液晶显示屏。 U1（MT8227）带一路AV输出，视频VDAC（PIN69）和音频Alineout_L（PIN96）和Alineout_R（PIN98） 2、具体的电路形式和内部框图：（1）视频 2 输入（2）视频 1 输入（在外挂小板上） LC-32TL2800机芯维修手册 3 （3）分量输入（在外挂小板上） C. 电脑输入 LC-32TL2800机芯维修手册 4 LC-32TL2800机芯维修手册 5 3、数字信号流程： HDMI 信号直接输入到主芯片 U1(MT8227)通过图像缩放、OSD 叠加后输出 LVDS 信号驱动液晶屏。（主板软件已包含整机 EDID 信息）。 LC-32TL2800机芯维修手册 6 4、基本方框图 5、主要 IC 的介绍（1）PAM8006 功放 LC-32TL2800机芯维修手册 7 （2）MT8227 主芯片介绍 MT8227 是一款集成度极高的平板电视解决方案芯片。支持所有 HDTV 的音视频输入输出格式。它内置先进的 3D 梳状滤波器，电视解码可从复合信号中获得最好的图像，使得 HDTV/VGA 解码器对于高带宽入信号完美重现。其 USB 可支持高清图片（JPEG \ BMP）、音频（MP3 \ WMA）和视频（AVI \ RM \ RMVB \ MPEG-2 \ MPEG-4 等）解码。 6、主板电压分配：电源分布图 1)、主板供电插座 LC-32TL2800机芯维修手册 8 2)、3.3V 供电电路 LC-32TL2800机芯维修手册 9 3)、1.2V 内核供电电路 4) Tuner 5V 供电电路 LC-32TL2800机芯维修手册 10 5)、液晶 T-CON 驱动模块供电电路 6) 、复位电路 LC-32TL2800机芯维修手册 11 四、电路板部件编号主板 B103-09788227-01（RT978）电源板 B100-216C0000-01（ LK-PL320216C）按键板 B104-TFJ10011-01（TFA10003 V1.0）遥控板 B104-10040000-01（TFY10004）五、整机接线图：（参考）六、常见故障判断流程：（1）、三无故障（无背光、无图像、无伴音）否否是是否否是是 AC 上电后指示灯是否变红测量主板插座 XS703 第 11 脚 5VSB 电压是否有+5V 电压？电源板故障无输出或 5VSB 对地短路遥控开机后指示灯是否变蓝遥控板故障，特别是指示灯遥控板故障检测XS367插座第 5 脚和第 4 脚电平是否正常？检测 LED-G 电路或者 U1 芯片输出控制 LC-32TL2800机芯维修手册 12 是否否是（2）、有伴音无图像否否是是否是否是（3）、整机有图像无声音是否是测量主板插座 XS703 第 10 脚 +5V，第 5 脚 +12V 电压是否正常？主 CPU 供电是否正常（ UP12-3.3V ， UD2-3.3V ， UD1-2.5V ， U505-1.2V）? UP12,UD1 ， UD2，U505 或其周围电路有问题主 CPU ， FLASH 或其周围电路有问题电源板故障无输出？或+5V、+12V 对地短路？背光是否点亮背光供电是否正常? 电源板故障背光供电无输出或对地短路？主板插座 XS703 第 4 脚背光开关 BLO 电平因短路或其他原因导致不正常? LVDS 供电+12V 是否正常? UL2 MOS 管及其周围电路有问题？用示波器测 LVDS 插座 CN718 处是否有 LVDS 信号波形输出？主 CPU U1 LVDS 部分电路有问题，看是否虚焊？ LVDS 线有问题或屏故障伴音功放是否有输出（输出是否有波形）喇叭坏异常？伴音功放是否有输入? 伴音功放 U506 及其电路故障。重点检查 U506 第 4 脚 MUTE 脚是否对地短路及其围是否有异常？ LC-32TL2800机芯维修手册 13 否是否（4）、某个通道工作不正常 a)、视频无图像是否 b)、电视通道无图像否是测 XS006 丝印标有 AV1 是否有信号输入由 AV 端子插座、或者信号源有问题检查第 UT5 6,7 脚系统总线电压是否为正常 5V？测 UT5(TUNER)第 8 脚（+5V 丝印）电压是否为 5V？ XS006 或其AV输入口附近电路有问题供电 UT2（7805）异常？ U1（MT8227 ）pin97 HP_L、pin99 HP_R 引脚是否有输出音频波检查 C438 \ C442 是否虚焊？主芯片输出异常 LC-32TL2800机芯维修手册 14 是否 c)、分量通道无图象是否 d)、电脑通道无图像有无有无另附主板线路图和电源板线路图如下： UT5 及差分中频输出回路有损坏? QT1,QT2 周围电路有问题？测外挂板XS202 是否有信号输入分量插座 XS202 有问题？ PV8 是否有信号输入？ VGA 插座有问题？测 CV57,CV58 信号端是否有同步信号输入？其外围电路有异常？主芯片有问题插座到 U1 芯片之间的外围电路有问题？ 5 4 3 2 1 D D C C B B A A Title Size Document Number Rev Date: Sheet of 1.0 R A 1 1 Thursday, December 08, 2011 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> R A 1 1 Thursday, December 08, 2011 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> A 1 1 Thursday, December 08, 2011 MAIN POWER LVDS KEY&IR SP POWER JP AMPLIFIRER 74HC4052 Extend scart /av/speaker MT8227 LDO2.5/1.8V DC/DC 3.3V DC/DC 1.2V TUNER 5V LDO EXTEND AV HDMI VGA PC AUDIO AV1 USB YPbPr AV2 MT8227 ASIA&EUROPE DIAGRAM Extend scart /av/speaker SP A B C D E 4 4 3 3 2 2 1 1 LVDS_PWR_CTRL O3P O3N OCKP OCKN O2P O2N O1P O1N O0P O0N E3P E3N E2P E2N E1P E1N E0P E0N O3N OCKP O3P LVDSVDD O0P LVDSVDD O1P O2P O1N O2N OCKP OCKN E1N E2N LVDSVDD O0N E1P OCKN E3N E0N E0P E3P E2P LVDS_PWR_CTRL VP AVDD3V3 AVDD1V2 AVDD3V3_LVDS AVDD1V2_LVDS LVDSVDD AVDD3V3 +5V +12V GND 3,4,5,6,7,8,9,11 LVDS_PWR_CTRL 4 O0N 4 O0P 4 O1N 4 O1P 4 O2N 4 O2P 4 OCKN 4 O3N 4 OCKP 4 O3P 4 E0N 4 E0P 4 E1N 4 E1P 4 E2N 4 E2P 4 E3N 4 E3P 4 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Panel Interface NEAR IC NEAR IC LVDS IF LO = > LVDS POWER OFF HI = > LVDS POWER ON LVDS POWER Control TO LVDS SUPLY JUMP CL9 100pF CL9 100pF RL19 100K RL19 100K CN3 NC_JP1X3P2.5MM CN3 NC_JP1X3P2.5MM +3.3V 1 VCC 2 +5V 3 CM88 0.1uF CM88 0.1uF CL8 0.1uF CL8 0.1uF CM85 0.1uF CM85 0.1uF CL7 1uF_16V CL7 1uF_16V RL16 4.7K RL16 4.7K QL4 MMBT3904 QL4 MMBT3904 1 3 2 RP52 0R RP52 0R CN718 JP2X15P2.0MM DIP/15X2P/P2.0/SMTA CN718 JP2X15P2.0MM DIP/15X2P/P2.0/SMTA 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 RL18 10K RL18 10K UL2 MEM2303XG UL2 MEM2303XG 1 2 3 A A A BP GP COM VSYNC RP HSYNC SOG VSYNC RED GP COM SOG BP RP VSYNC# HSYNC# BLU RED GRN BLU VSYNC# HSYNC# HSYNC VGASCL VGASDA VGASCL VGASDA VGASCL VGASDA U0TX U0RX U0RX U0TX VGA_L_In VGA_R_In GRN VGA_Audio_L_In VGA_Audio_R_In VGA_L_In VGA_R_In AVDD1V2_RGB AVDD1V2 AVDD3V3_VDAC AVDD3V3 +5VSB VSYNC 4 HSYNC 4 BP 4 SOG 4 GP 4 COM 4 RP 4 GND 3,4,5,6,8,9,10,11 VGASDA 4 VGASCL 4 U0TX 4,5 U0RX 4,5 VGA_L_In 4 VGA_R_In 4 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> B 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> B 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> B 1 1 Saturday, February 04, 2012 VGA Input NEARLY VGA CONN. NEARLY IC VGA CONNECTOR VGA Audio Input NEAR IC NEAR IC NEARLY CONN. NEARLY IC RA102 30K RA102 30K CV50 1500pF CV50 1500pF RV85 100 RV85 100 RM162 0R RM162 0R CA60 2.2uF CA60 2.2uF CV58 NC_5pF CV58 NC_5pF RV80 75 RV80 75 CV24 10pF CV24 10pF CV51 0.01uF CV51 0.01uF CV27 10pF CV27 10pF RV81 100 RV81 100 RA106 12K RA106 12K CA59 2.2uF CA59 2.2uF RM88 0R RM88 0R CM48 0.1uF CM48 0.1uF CV56 0.01uF CV56 0.01uF RV82 75 RV82 75 RA104 10K RA104 10K RA105 12K RA105 12K DV67 ESD_10pF DV67 ESD_10pF 1 2 DV66 ESD_10pF DV66 ESD_10pF 1 2 DV62 ESD_10pF DV62 ESD_10pF 1 2 DV68 ESD_10pF DV68 ESD_10pF 1 2 CM41 0.1uF CM41 0.1uF RV83 100 RV83 100 RV87 100 RV87 100 RV84 75 RV84 75 RV58 10K RV58 10K PV8 D-SUB15 PV8 D-SUB15 16 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 DV69 ESD_10pF DV69 ESD_10pF 1 2 DV64 ESD_10pF DV64 ESD_10pF 1 2 RV59 10K RV59 10K CV57 NC_5pF CV57 NC_5pF CV52 0.01uF CV52 0.01uF RA101 30K RA101 30K RA103 10K RA103 10K DV70 ESD_10pF DV70 ESD_10pF 1 2 CV49 0.01uF CV49 0.01uF P73 CKX3.5-37-B_BLUE P73 CKX3.5-37-B_BLUE 5 4 1 3 2 CV53 10pF CV53 10pF 5 4 3 2 1 D D C C B B A A COM1 PR1P SOY1 Y1P PB1P CVBS2 CVBS1 SC_CVBS_IN CVBS_1 CVBS1 SOY_1 Y1P COM1 PB1 PR1P PR1 PB1P Y1 YPbPrL_IN YPbPrR_IN AV1_L_In AV1_R_In SOY1 YPbPr_L_In YPbPr_R_In SPDIFO AV1_R_In AV1_L_In YPbPr_R_In YPbPr_L_In AV2_CVBS_IN CVBS_0 CVBS0 VDAC_OUT SC_CVBS_OUT VGA_R_In VGA_L_In VDAC_OUT SOY_1 SCT1_FS GND AV2_LIN AV2_CVBS_IN SC_CVBS_OUT GND GND SC_B/Y SCT1_FS_IN GND SC_LINE_L GND GND AV2_RIN GND SC_CVBS_IN SCT1_FB_IN SC_R/PR SC_G/PB GND SC_LIN SC_RIN SC_LINE_R SC_LINE_R SC_LINE_L SCT1_FS_IN SCT1_FS SCT1_FB_IN AV2_RIN_ AV2_LIN_ SW_4052 YPbPrR_IN YPbPrL_IN YPbPrR_IN YPbPrL_IN AV2_LIN_ AV2_RIN_ SC_RIN AV2_RIN SC_LIN AV2_LIN AVR_IN AVL_IN AV_IN CVBS_2 CVBS2 CVBS0 AVR_IN AV_IN AVL_IN GND GND GND PB_IN_1 AV2_LIN GND AV2_RIN Y_IN_1 GND PR_IN_1 AV2_CVBS_IN SC_G/PB PB_IN_1 SC_R/PR PR_IN_1 Y_IN_1 SC_B/Y PR_IN_1 PB_IN_1 Y_IN_1 SW_4052 SC_CVBS_OUT GND SC_LINE_R SC_LINE_L AVDD3V3_CVBS AVDD3V3 AVDD3V3 AVDD3V3_AADC +5V_Tuner +5V_Tuner GND 3,4,5,7,8,9,10,11 CVBS1 4 CVBS2 4 SOY1 4 Y1P 4 PB1P 4 COM1 4 PR1P 4 AV1_L_In 4 AV1_R_In 4 YPbPr_L_In 4 YPbPr_R_In 4 SPDIFO 4,5 VGA_R_In 4 VGA_L_In 4 VDAC_OUT 4 SCT1_FS 4 SCART1L_PA 7 SCART1R_PA 7 CVBS0 6 SW_4052 9 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Video Input Audio AV1 Video Input NEARLY CONNECTOR NEARLY IC NEARLY YPBPR CON. YPbPr Video Input AV2 Audio Input NEARLY CONN. YPbPr Audio Input NEARLY CONN. NEAR IC Near IC NEAR IC NEARLY IC NEARLY IC NEAR IC AV2 Video Input NEARLY CONNECTOR SCART CVBS OUT NEARLY CONNECTOR NEARLY IC SCART Interface NEARLY IC SCART 1(Full SCART) FAST BLANKING NEARLY CON. 0ohm FOR SCART NEARLY CON. Function Select SPEAKER Output 1+AV Input NEAR IC NEARLY CONNECTOR AV1 Video Input XS126 CON11P2.0MM XS126 CON11P2.0MM 2 3 4 5 6 7 8 9 10 1 11 CV16 10pF CV16 10pF CV88 220pF CV88 220pF RA116 NC_10K RA116 NC_10K CV10 1500pF CV10 1500pF CV2 NC_47pF CV2 NC_47pF CA98 NC_1uF CA98 NC_1uF CA64 2.2uF CA64 2.2uF RA114 NC_12K RA114 NC_12K RA120 10K RA120 10K RV22 56 RV22 56 RV7 75 RV7 75 RV2 NC_100 RV2 NC_100 CV28 220pF CV28 220pF UA1 NC_74HC4052 UA1 NC_74HC4052 Y2 2 Y0 1 VEE 7 CTL_B 9 CTL_A 10 Yout 3 X0 12 X3 11 VSS 8 Y3 4 Xout 13 X1 14 VDD 16 X2 15 Y1 5 EN 6 DV41 NC_ESD_10pF DV41 NC_ESD_10pF 1 2 CV12 10pF CV12 10pF RV29 NC_51K RV29 NC_51K CM64 0.1uF CM64 0.1uF CV1 NC_0.047uF CV1 NC_0.047uF LV7 2.2uH LV7 2.2uH CV13 0.01uF CV13 0.01uF XS503 CON4P2.0MM XS503 CON4P2.0MM 1 2 3 4 CA67 NC_2.2uF CA67 NC_2.2uF DV42 NC_ESD_10pF DV42 NC_ESD_10pF 1 2 DV33 NC_ESD_10pF DV33 NC_ESD_10pF 1 2 RV45 75 RV45 75 RV19 100 RV19 100 RV21 100 RV21 100 RV32 NC_10K RV32 NC_10K RA123 10K RA123 10K CA68 2.2uF CA68 2.2uF CV11 0.01uF CV11 0.01uF RA108 NC_470K RA108 NC_470K RA110 NC_1K RA110 NC_1K RV25 100 RV25 100 RV3 NC_75 RV3 NC_75 CV3 47pF CV3 47pF CA65 NC_2.2uF CA65 NC_2.2uF RA115 NC_12K RA115 NC_12K RA86 NC_470K RA86 NC_470K CA61 2.2uF CA61 2.2uF CV5 47pF CV5 47pF RA124 12K RA124 12K RA118 NC_10K RA118 NC_10K CV15 10pF CV15 10pF RA84 0R RA84 0R CA66 2.2uF CA66 2.2uF RV4 100 RV4 100 RV24 18 RV24 18 RV17 56 RV17 56 CA62 2.2uF CA62 2.2uF DV46 ESD_10pF DV46 ESD_10pF 1 2 RA121 10K RA121 10K RA87 0R RA87 0R CV14 0.01uF CV14 0.01uF CV4 0.047uF CV4 0.047uF RV23 56 RV23 56 RA2 30K RA2 30K DV49 ESD_10pF DV49 ESD_10pF 1 2 RA107 NC_470K RA107 NC_470K RA109 NC_470K RA109 NC_470K RV6 100 RV6 100 RA113 NC_12K RA113 NC_12K RV31 NC_75 RV31 NC_75 RA122 12K RA122 12K CA97 NC_1uF CA97 NC_1uF RV20 18 RV20 18 RA117 10K RA117 10K CV17 0.01uF CV17 0.01uF CV6 0.047uF CV6 0.047uF DV48 ESD_10pF DV48 ESD_10pF 1 2 XS203 NC_JP2X12P2.0MM_90 XS203 NC_JP2X12P2.0MM_90 2 4 6 8 10 12 14 16 18 20 22 24 1 3 5 7 9 11 13 15 17 19 21 23 DV34 ESD_10pF DV34 ESD_10pF 1 2 RV16 100 RV16 100 RA6 30K RA6 30K CA63 2.2uF CA63 2.2uF RV15 18 RV15 18 RA4 30K RA4 30K DV47 ESD_10pF DV47 ESD_10pF 1 2 RV26 0R RV26 0R XS006 RCA_AV G_AV3 XS006 RCA_AV G_AV3 1 2 3 4 5 6 CM33 0.1uF CM33 0.1uF DV35 ESD_10pF DV35 ESD_10pF 1 2 RA8 30K RA8 30K RV5 75 RV5 75 RA111 NC_1K RA111 NC_1K RA112 NC_12K RA112 NC_12K A A A RX_CB RX_C RX_1B RX_1 RX_2B RX_2 RX_0B RX_0 RX_CB RX_C RX_0B RX_0 HDMI_HPD HDMI_PLUGPWR PWR5V RX_1B RX_1 RX_2B RX_2 RX_C RX_CB RX_0 RX_0B RX_1 RX_1B RX_2 RX_2B HDMI_SDA HDMI_SCL HDMI_HPD HDMI_CEC USB_D1P USB_D1M USB_D0P USB_D0M HDMI_SCL HDMI_SDA PWR5V HDMI_CEC GND USB_VCC0 USB_VCC1 USB_D1P GND USB_D1M USB_D0P USB_D0M SPDIFO SPDIFO AVDD1V2_HDMI AVDD1V2 AVDD3V3_USB HDMI_PLUGPWR HDMI_PLUGPWR 3V3SB AVDD3V3_HDMI AVDD3V3 3V3SB +5V USB_VCC0 USB_VCC1 +5V GND 3,4,5,6,7,9,10,11 HDMI_SDA 4 HDMI_SCL 4 HDMI_CEC 4 HDMI_HPD 4 RX_2B 4 RX_2 4 RX_1B 4 RX_1 4 RX_0B 4 RX_0 4 RX_CB 4 RX_C 4 USB_D1P 4 USB_D1M 4 USB_D0P 4 USB_D0M 4 SPDIFO 5,6 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> R C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> R C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> R C 1 1 Saturday, February 04, 2012 NEAR IC USB PORT HDMI port HDMI Interface NEAR IC HDMI/USB Power Internal EDID,Sink_HPD_True of CDF File Select "Power On" USB Interface HDMI Power Detect and HPD control flow: 1. HDMI_HPD use as GPI. 2. RX detect High (5V detected) 3. Set HDMI_HPD as GPO for HDMI Hot plug. SPDIF OUT OPTICAL CM47 0.1uF CM47 0.1uF DH21 ESD_0.15pF DH21 ESD_0.15pF 1 2 RH16 47K RH16 47K DH22 ESD_0.15pF DH22 ESD_0.15pF 1 2 QH6 MMBT3904 QH6 MMBT3904 1 3 2 RH17 1K RH17 1K RA139 33 RA139 33 DH23 22pF DH23 22pF 1 2 CM51 0.1uF CM51 0.1uF RH31 10K RH31 10K F2 1.5A F2 1.5A 1 2 CM59 0.1uF CM59 0.1uF F1 NC_1.5A F1 NC_1.5A 1 2 DU5 ESD_0.15pF DU5 ESD_0.15pF 1 2 DU8 ESD_0.15pF DU8 ESD_0.15pF 1 2 RH19 47K RH19 47K RH13 NC_27K RH13 NC_27K RH30 47K RH30 47K CM52 0.1uF CM52 0.1uF XS704 CON2P2.0MM XS704 CON2P2.0MM 1 2 RH32 100 RH32 100 RH34 NC_100 RH34 NC_100 DH13 NC_RB520S-30 DH13 NC_RB520S-30 2 1 RH33 100 RH33 100 RH14 100K RH14 100K RM161 0R RM161 0R DU6 ESD_0.15pF DU6 ESD_0.15pF 1 2 DH11 ESD_10pF DH11 ESD_10pF 1 2 XS101 USB*1 XS101 USB*1 7 VCC1 7 6 D1- 6 5 D1+ 5 8 GND1 8 9 VCC2 9 11 D2- 11 12 D2+ 12 10 GND2 10 SHIELD1 1 SHIELD2 2 SHIELD3 3 SHIELD4 4 DU7 ESD_0.15pF DU7 ESD_0.15pF 1 2 DH12 ESD_10pF DH12 ESD_10pF 1 2 DH16 ESD_0.15pF DH16 ESD_0.15pF 1 2 DH17 ESD_0.15pF DH17 ESD_0.15pF 1 2 QH3 MMBT3904 QH3 MMBT3904 1 3 2 PH2 HDMI_90 PH2 HDMI_90 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22 21 20 23 DH18 ESD_0.15pF DH18 ESD_0.15pF 1 2 DH14 NC_ESD_10pF DH14 NC_ESD_10pF 1 2 DH15 ESD_0.15pF DH15 ESD_0.15pF 1 2 DH19 ESD_0.15pF DH19 ESD_0.15pF 1 2 CM103 NC_1uF CM103 NC_1uF RM163 0R RM163 0R DH9 ESD_10pF DH9 ESD_10pF 1 2 DH20 ESD_0.15pF DH20 ESD_0.15pF 1 2 5 4 3 2 1 D D C C B B A A U0TX U0RX S_CLK OXTALI OXTALO OSDA0 OSCL0 OIRI ORESET# OXTALI OXTALO Strap_IN0 Strap_IN1 Strap_IN2 Strap_IN0 S_CE S_CLK S_D S_Q DV33_SPI S_CE S_Q S_D Strap_IN3 Strap_IN3 Strap_IN1 Strap_IN2 KEY_IN CH+ +5VSB LED_G KEY_IN POWER LED_R LED_R LED_G IR_IN GND POWER VOL+ VOL- VOL- CH+ CH- MENU SOURCE NC_KEY VOL+ NC_KEY GND KEY_IN IR_IN OIRI LED Key_Pad SOURCE CH- MENU U0RX U0TX Key_Pad ORESET# LED VOL+ Key_Pad 3V3SB 3V3SB DV33_SPI DVDD3V3 DV33_SPI STB3V3 STB3V3_XTAL STB3V3_VGA 3V3SB DV33_SPI +5VSB +5VSB +5VSB 3V3SB 3V3SB 3V3SB 3V3SB 3V3SB GND 3,4,6,7,8,9,10,11 U0TX 4,7 U0RX 4,7 OSDA0 4,9,11 OSCL0 4,9,11 OIRI 4 ORESET# 4 OXTALI 4 OXTALO 4 Strap_IN0 3,4 Strap_IN1 4,9 Strap_IN2 4,11 S_CLK 4 S_CE 4 S_D 4 S_Q 4 Strap_IN3 4,6 Key_Pad 9 LED 9 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Control/Communication Other Interface NEAR IC 27MHz CRYSTAL HW Strap Setting MT8227 STRAPPING MODE STB Power Flash H: Power On 4.7k 8.6k IR/LED L: Power OFF Red : Standby Mode RESET Circuit FOR CODE DOWNLOAD AND DEBUGGING UART Port 0 Reset valve voltage: 2.7V RM16 NC_4.7K RM16 NC_4.7K RM97 100R RM97 100R RM109 NC_4.7K RM109 NC_4.7K CM24 0.1uF CM24 0.1uF RM50 NC_5.1K_1% RM50 NC_5.1K_1% RM51 NC_1.5K_1% RM51 NC_1.5K_1% RP9 10K RP9 10K RM53 NC_1.8K_1% RM53 NC_1.8K_1% CM30 1uF CM30 1uF RP6 1K RP6 1K CM26 0.1uF CM26 0.1uF J1 CON4P2.0MM J1 CON4P2.0MM 1 2 3 4 RP8 10K RP8 10K RM47 0R RM47 0R CM42 0.1uF CM42 0.1uF DM1 ESD_10pF DM1 ESD_10pF 1 2 QP4 MMBT3904 QP4 MMBT3904 1 3 2 R83 4.7K R83 4.7K RM40 4.7K RM40 4.7K RP3 1K RP3 1K Y1 27MHz Y1 27MHz RM48 10R RM48 10R DM2 ESD_10pF DM2 ESD_10pF 1 2 R82 4.7K R82 4.7K CM28 0.1uF CM28 0.1uF U3 MX25L3206E-12G U3 MX25L3206E-12G CS# 1 S_Q 2 W#/VPP 3 VSS 4 S_D 5 SCLK 6 HOLD# 7 VCC 8 RM137 4.7K RM137 4.7K R98 0R R98 0R C28 0.1uF C28 0.1uF XS26 ADD_XS3675P2.0MM_XS368_2P2.0MM XS26 ADD_XS3675P2.0MM_XS368_2P2.0MM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 RM89 5.6K_1% RM89 5.6K_1% C18 27pF C18 27pF U19 RT9818C-27PV U19 RT9818C-27PV GND 3 /Reset 1 Vcc 2 RM46 NC_3K_1% RM46 NC_3K_1% C17 27pF C17 27pF RM49 NC_1K_1% RM49 NC_1K_1% RM166 0R RM166 0R CR1 0.1uF CR1 0.1uF C62 0.01uF C62 0.01uF R77 NC_1M R77 NC_1M QP3 MMBT3904 QP3 MMBT3904 1 3 2 RM105 4.7K RM105 4.7K R85 10K R85 10K RM107 4.7K RM107 4.7K C43 100pF C43 100pF RM52 0R RM52 0R RM45 NC_680_1% RM45 NC_680_1% A B C D E 4 4 3 3 2 2 1 1 OPWRSB SW OPWRSB BKLT_EN BKLT_ADJ GND GND +5V GND GND +12VPOWER +5VSB SW +12V_SYS +12VPOWER BL_DIMMING BKLT_ADJ BKLT_EN BL_DIMMING BL_ON/OFF BL_ON/OFF +5V +12V +5VSB +5VSB AVDD3V3 DVDD3V3 +5V DDR_V +5V AVDD3V3 ADAC_3V3 VCCK AVDD1V2 3V3SB +5VSB DVDD3V3 +12V_SYS VCCK +12V_SYS 3V3SB +5V +5V +5V DVDD3V3 GND 4,5,6,7,8,9,10,11 OPWRSB 4,5 BL_ON/OFF 3 BL_DIMMING 3 BL_DIMMING 4 BL_ON/OFF 4 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> <RevCode> <Title> <OrgName> C 1 1 Saturday, February 04, 2012 HI = > POWER_OFF LO = > POWER_ON MAIN POWER STANDBY POWER 3V3SB Control Interface DRAM POWER 1.25 x (1+110/110) =2.5V for DDR1 1.25 x (1+48.7/110) =1.8V for DDR2 Core Power 1.2V RP51 for DDR1 RD50 for DDR2 RD3: 1.2V=0.925x (R1+R2)/R2 VOUT=0.925*(2.4+10)/10 R2 R1 SYSTEM POWER 3V3 LO = > POWER_ON HI = > POWER_OFF C51 0.1uF C51 0.1uF R1172 10K_1% R1172 10K_1% QP1 MMBT3904 QP1 MMBT3904 1 3 2 Q28 MMBT3904 Q28 MMBT3904 1 3 2 CB8 0.1uF CB8 0.1uF R400 4.7K R400 4.7K + CE223 100uF_16v + CE223 100uF_16v + CED2 100uF_16v + CED2 100uF_16v C31 1uF C31 1uF CB214 0.01uF CB214 0.01uF XS703 CON12P2.0MM XS703 CON12P2.0MM 1 2 3 4 5 6 7 8 9 10 11 12 R404 4.7K R404 4.7K RD1 110_1% RD1 110_1% U505 MP1472GJ U505 MP1472GJ EN 2 SS 1 COMP 3 GND 5 FB 4 SW 6 BS 8 IN 7 MK9 MK MK9 MK 1 + CE224 220uF_16v + CE224 220uF_16v RP51 0R RP51 0R CP8 NC_10uF_10V_X5R CP8 NC_10uF_10V_X5R R394 10k R394 10k RP50 NC_0 RP50 NC_0 CB445 0.01uF_50V CB445 0.01uF_50V MK11 MK MK11 MK 1 R5 FB R5 FB H4 HOLE/GND H4 HOLE/GND 2 2 3 3 4 4 5 5 9 9 8 8 7 7 6 6 1 1 + CE227 220uF_16v + CE227 220uF_16v MK14 MK MK14 MK 1 CB213 1uF_X7R CB213 1uF_X7R CP16 0.1uF CP16 0.1uF R1170 2.2K R1170 2.2K UP12 BM9168AIM23 UP12 BM9168AIM23 GND 1 OUT 3 IN 2 RD2 110_1% RD2 110_1% MK1 MK MK1 MK 1 Q26 MMBT3904 Q26 MMBT3904 1 3 2 UD1 BM1117-ADJ UD1 BM1117-ADJ IN 3 ADJ/GND 1 OUT 2 L31 FB1206 L31 FB1206 H2 HOLE/GND H2 HOLE/GND 2 2 3 3 4 4 5 5 9 9 8 8 7 7 6 6 1 1 L29 10uH_1.8A L29 10uH_1.8A RP49 47R RP49 47R MK5 MK MK5 MK 1 R1171 2.4K_1% R1171 2.4K_1% UD2 BM1084-3.3 UD2 BM1084-3.3 IN 3 ADJ/GND 1 OUT 2 C55 10uF_10V C55 10uF_10V CP11 10uF_16V CP11 10uF_16V R401 10K R401 10K R1169 100k R1169 100k MK2 MK MK2 MK 1 CP9 10uF_10V_X5R CP9 10uF_10V_X5R CD1 4.7uF_10V CD1 4.7uF_10V C515 0.01uF_50V C515 0.01uF_50V C30 1uF C30 1uF RP5 4.7K RP5 4.7K R392 1K R392 1K H1 HOLE/GND H1 HOLE/GND 2 2 3 3 4 4 5 5 9 9 8 8 7 7 6 6 1 1 H3 HOLE/GND H3 HOLE/GND 2 2 3 3 4 4 5 5 9 9 8 8 7 7 6 6 1 1 R399 4.7K R399 4.7K C516 0.1uF C516 0.1uF RP1 4.7k RP1 4.7k 5 4 3 2 1 D D C C B B A A RX_C RX_CB RX_0 RX_0B RX_1 RX_1B RX_2 RX_2B HDMI_SDA HDMI_SCL HDMI_HPD HDMI_CEC OSDA0 OSCL0 U0TX U0RX OIRI ORESET# O3P O3N OCKP OCKN O2P O2N O1P O1N O0P O0N E3P E3N E2P E2N E1P E1N E0P E0N BL_DIMMING OPWRSB OXTALO OXTALI Strap_IN0 Strap_IN1 Strap_IN2 BP GP COM VSYNC RP HSYNC SOG COM1 CVBS2 CVBS1 PR1P Y1P PB1P VDAC_OUT SOY1 S_CLK S_CE S_Q S_D Alineout_L Alineout_R HP_R HP_L VCCK DDR_V IFN IFP RF_AGC E3P E3N E2P E2N E1P E1N E0P E0N O3P O3N OCKP OCKN O2P O2N O1P O1N O0P O0N Strap_IN2 OXTALO OXTALI VCCK VCCK OIRI OSDA0 OSCL0 HDMI_SDA HDMI_SCL HDMI_CEC VCCK OPWRSB Strap_IN0 VCCK RX_C RX_0 RX_0B RX_CB RX_1 RX_1B RX_2 RX_2B Key_Pad VCCK VDAC_OUT AVDD10_LDO COM GP BP VSYNC RP SOG HSYNC CVBS2 HDMI_HPD U0TX U0RX RF_AGC RF_AGCO Y1P PB1P SOY1 COM1 PR1P CVBS1 VCCK DVDD3V3IO AVDD3V3_PLL AVDD3V3_MEMPLL SCT1_FS USB_D0P USB_D0M USB_D0P USB_D0M USB_D1M USB_D1P USB_D1P USB_D1M VGA_L_In VGA_R_In YPbPr_L_In YPbPr_R_In AV1_L_In AV1_R_In SPDIFO Strap_IN3 SPDIFO DDR_V DDR_V DDR_V DDR_V DDRVREF LVDS_PWR_CTRL VGASDA MUTE_AMP VGASCL ORESET# AVDD3V3_ADAC0 VGA_L_In VGA_R_In AVDD3V3_ADAC0 YPbPr_L_In AV1_L_In YPbPr_R_In AV1_R_In IFN IFP Key_Pad Strap_IN1 LED VGASDA VGASCL BL_ON/OFF LVDS_PWR_CTRL MUTE_AMP Alineout_L Alineout_R HP_R HP_L VCCK DDR_V S_CLK S_D S_Q S_CE AVDD3V3_MEMPLL Strap_IN3 CVBS0 CVBS0 LED SW_4052 SW_4052 SCT1_FS BL_DIMMING BL_ON/OFF AVDD3V3 AVDD3V3 VCCK DDR_V DVDD3V3 DVDD3V3IO AVDD3V3_PLL DDR_V ADAC_3V3 STB3V3_XTAL STB3V3 STB3V3_VGA AVDD1V2_HDMI AVDD3V3_HDMI AVDD3V3_USB AVDD1V2_DEMOD AVDD3V3_DEMOD AVDD1V2_RGB AVDD3V3_VDAC AVDD3V3_CVBS AVDD3V3_AADC AVDD3V3_LVDS AVDD1V2_LVDS HDMI_SDA 8 HDMI_SCL 8 HDMI_CEC 8 HDMI_HPD 8 RX_2B 8 RX_2 8 RX_1B 8 RX_1 8 RX_0B 8 RX_0 8 RX_CB 8 RX_C 8 OSDA0 5,9,11 OSCL0 5,9,11 U0TX 5,7 U0RX 5,7 OIRI 5 ORESET# 5 O3N 10 OCKP 10 O3P 10 E0N 10 BL_DIMMING 10 E0P 10 E1N 10 E1P 10 E2N 10 E2P 10 E3N 10 E3P 10 O0N 10 O0P 10 O1N 10 O1P 10 O2N 10 O2P 10 OCKN 10 OPWRSB 3,5 OXTALI 5 OXTALO 5 Strap_IN0 3,5 Strap_IN1 5,9 Strap_IN2 5,11 VSYNC 7 HSYNC 7 BP 7 SOG 7 GP 7 COM 7 RP 7 CVBS1 6 CVBS2 6 COM1 6 Y1P 6 PB1P 6 PR1P 6 SOY1 6 VDAC_OUT 7 S_CLK 5 S_CE 5 S_D 5 S_Q 5 Alineout_R 9 Alineout_L 9 HP_L 9 HP_R 9 GND 3,5,6,7,8,9,10,11 IFN 11 IFP 11 RF_AGC 11 USB_D0P 8 USB_D0M 8 USB_D1P 8 USB_D1M 8 VGA_L_In 7 VGA_R_In 7 YPbPr_L_In 6 YPbPr_R_In 6 AV1_L_In 6 AV1_R_In 6 SPDIFO 5,6 VGASCL 7 VGASDA 7 BL_ON/OFF 10 LVDS_PWR_CTRL 10 MUTE_AMP 9 Strap_IN3 5,6 Key_Pad 9 CVBS0 6 LED 5,9,11 SW_4052 9 SCT1_FS 4 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> p C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> R C 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> R C 1 1 Saturday, February 04, 2012 HDMI Interface Panel Interface Control/Communication/Other Interface HW Strap Setting VGA Input Video Input SCART/YPBPR Interface Audio AVDD3V3_MEMPLL AVDD3V3_PLL BYPASS CAP Near IC Pin Tuner/Demod Near IC Near IC USB Interface Near IC AOBCK AOSDATA0 AOLRCK AOMCK RD13 1K_1% RD13 1K_1% R164 51R R164 51R CM8 0.1uF CM8 0.1uF RM4 0R RM4 0R CD2 0.1uF CD2 0.1uF CM29 4.7uF_10V CM29 4.7uF_10V CD10 0.1uF CD10 0.1uF CT141 0.047uF CT141 0.047uF CM15 0.1uF CM15 0.1uF CD15 4.7uF_10V CD15 4.7uF_10V CD17 0.1uF CD17 0.1uF CM18 0.1uF CM18 0.1uF RD12 1K_1% RD12 1K_1% CM9 0.1uF CM9 0.1uF CM19 0.1uF CM19 0.1uF CM20 0.1uF CM20 0.1uF RM42 4.7K RM42 4.7K CM83 1uF CM83 1uF CM58 0.1uF CM58 0.1uF CM10 4.7uF CM10 4.7uF CM14 0.1uF CM14 0.1uF CM5 0.1uF CM5 0.1uF CD14 4.7uF_10V CD14 4.7uF_10V CP14 4.7uF_10V CP14 4.7uF_10V RT160 10K RT160 10K CM22 0.1uF CM22 0.1uF CM16 0.1uF CM16 0.1uF RM43 0R RM43 0R CM6 0.1uF CM6 0.1uF R163 51R R163 51R U1 MT8227AAKU U1 MT8227AAKU RF_AGCO 1 Boost_PWM 2 BL_ON/OFF 4 BL_DIMMING 3 DVDD3V3 5 Fuse_WR 6 SFCS 7 SFCK 8 SFD0 9 SFD1 10 DDR_V 11 VCCK 12 DDRVRef 13 DDR_V 14 AVDD3V3_MEMPLL 16 VCCK 17 DDR_V 18 DDR_V 15 VCCK 24 JTDO 26 VGA_SDA/JTMS 28 OIRI 30 GPO1/SPDIF 32 U0TX 22 HDMI_SDA 35 HDMI_CEC 37 RX_CB 39 RX_0B 41 GP 58 BP 56 VSYNC 54 AVDD10_LDO 52 DDR_V 19 OSDA0 20 OSCL0 21 STB3V3 33 ADIN4 49 AVDD1V2_HDMI 47 RX_2B 45 COM 59 YP 62 PBP 64 AVSS1V2_RGB 67 VCCK 70 RX_1B 43 AVDD3V3_CVBS 72 SY 74 AVDD1V2_DEMOD 76 IFN 79 AVSS3V3_DEMOD 81 STB3V3_XTAL 84 AIN1_L 86 ADIN0 50 AVDD3V3_AADC 88 AIN1_R 90 U0RX 23 JTRST# 25 JTCK 27 VGA_SCL/JTDI 29 OPWRSB 31 AVSS1V2_DEMOD 77 HDMI_HPD 34 HDMI_SCL 36 AVDD3V3_HDMI 38 VMID_ADAC 92 ALine out_R 98 AVSS33 93 VDAC_OUT 69 RX_C 40 RX_0 42 SOG 57 HSYNC 55 STB3V3_VGA 53 ORESET# 51 VCCK 48 RP 60 RX_2 46 RX_1 44 SOY 61 COM1 63 AVDD1V2_RGB 66 AVDD3V3_VDAC 68 OXTALO 83 AVDD3V3_PLL 71 SC 73 CVBSP 75 IFP 78 AVDD3V3_DEMOD 80 OXTALI 82 AIN2_R 91 AIN0_L 85 AIN2_L 87 AIN0_R 89 OCKN 120 O2P 121 O3N 118 PRP 65 AVSS3V3_ADAC 95 HP_L 97 HP_R 99 ALine out_L 96 VCCK 100 D0M 101 D0P 102 AVDD3V3_ADAC 94 D1M 104 AVDD3V3_USB 103 E0N 115 E0P 114 E1N 113 D1P 105 O3P 117 E1P 112 E3N 109 E2P 110 E2N 111 E3P 108 AVDD1V2_LVDS 107 VCCK 106 OCKP 119 O2N 122 O1P 123 O1N 124 O0P 125 O0N 126 LVDS_CTRL0 127 LVDS_PWR_CTRL 128 AVDD3V3_LVDS 116 E-PAD 129 RM1 10K RM1 10K CM7 0.1uF CM7 0.1uF 5 4 3 2 1 D D C C B B A A MUTE_AMP HP_R HP_L Alineout_L Alineout_R SCART1L_PA SCART1R_PA OSCL0 OSDA0 Alineout_L Alineout_R SCART1L_PA HP_R HP_L SD_OFF MUTE SCART1R_PA R_GND SD DAC1_AOUTR DAC1_AOUTL SP_L L_GND MUTE SP_R MUTE_AMP SD SD_OFF DAC1_AOUTL DAC1_AOUTR +12V OPAV120 OPAV120 +5VSB +5V +12V +12V +12V_AMP +12V_AMP +12V +12V_AMP GND 3,4,5,6,7,8,10,11 MUTE_AMP 4 HP_L 4 HP_R 4 Alineout_R 4 Alineout_L 4 SCART1R_PA 7 SCART1L_PA 7 OSDA0 4,5,11 OSCL0 4,5,11 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> o D 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> R D 1 1 Saturday, February 04, 2012 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> R D 1 1 Saturday, February 04, 2012 Audio Control D/A and OP Circuit MUTE Circuit D/A and OP Circuit R413 1k R413 1k C454 330pF C454 330pF R433 10k R433 10k V411 MMBT3904 V411 MMBT3904 1 3 2 C432 1uF_16V C432 1uF_16V C456 220pF C456 220pF R412 NC_0R R412 NC_0R C470 0.1uF_16V C470 0.1uF_16V L34 FB L34 FB C473 4.7uF_16V C473 4.7uF_16V CA19 1000pF CA19 1000pF C455 330pF C455 330pF L38 FB L38 FB C445 1uF_16V_X7R C445 1uF_16V_X7R C440 1uF C440 1uF C433 1uF C433 1uF C434 1000pF C434 1000pF R415 100k R415 100k L33 FB L33 FB R428 1K R428 1K CA11 470pF CA11 470pF R424 5.1k R424 5.1k RA65 47K RA65 47K RA76 1K RA76 1K C467 4700pF C467 4700pF L36 FB L36 FB RA82 10K RA82 10K V403 MMBT3904 V403 MMBT3904 1 3 2 C450 680pF C450 680pF R414 10k R414 10k U506 PAM8006 U506 PAM8006 NC 1 RIN 2 RINP 3 MUTE 4 AVDD 5 LIN 6 LINN 7 NC 8 PGND 9 PVCC 10 LOUT_N 11 BST 12 BST 13 LOUT_P 14 PVCC 15 PGND 16 NC 17 COSO 18 V2P5 19 AGND 20 VVCLMP 21 AVCC 22 SD 23 NC 24 PGND 25 PVCC 26 ROUT_P 27 BST 28 BST 29 ROUT_N 30 PVCC 31 PGND 32 EPAD 33 C444 1uF_16V_X7R C444 1uF_16V_X7R C451 680pF C451 680pF RA53 5.1K RA53 5.1K L37 FB L37 FB R416 10k R416 10k C459 0.1uF C459 0.1uF C446 0.1uF_16V C446 0.1uF_16V C439 1000pF C439 1000pF RA67 10K RA67 10K RA62 10K RA62 10K RA73 1K RA73 1K R429 1K R429 1K VD401 LL4148 VD401 LL4148 C466 4700pF C466 4700pF RA54 10K RA54 10K R423 5.1k R423 5.1k + C463 470uF_25v + C463 470uF_25v C472 4.7uF_16V C472 4.7uF_16V C465 1uF_16V_X7R C465 1uF_16V_X7R R.A. JA2 COn2P2.5MM_90 R.A. JA2 COn2P2.5MM_90 1 2 R431 10R R431 10R V405 MMBT3904 V405 MMBT3904 1 3 2 CA20 470pF CA20 470pF C441 10uF_10V C441 10uF_10V V408 MMBT3904 V408 MMBT3904 1 3 2 R.A. JA1 COn2P2.5MM_90_RED R.A. JA1 COn2P2.5MM_90_RED 1 2 C468 4700pF C468 4700pF C435 1uF C435 1uF RA63 470 RA63 470 C438 1uF C438 1uF V404 MMBT3904 V404 MMBT3904 1 3 2 C458 1uF C458 1uF RA81 10R RA81 10R RA66 5.1K RA66 5.1K C464 1uF_16V_X7R C464 1uF_16V_X7R RA68 470 RA68 470 R434 10k R434 10k C443 0.1uF_16V C443 0.1uF_16V C431 1000pF C431 1000pF R426 5.1k R426 5.1k C460 10uF_16V C460 10uF_16V C469 4700pF C469 4700pF RA64 200K RA64 200K V402 MMBT3906 V402 MMBT3906 1 3 2 C461 4.7uF_16V C461 4.7uF_16V C447 330pF C447 330pF RA69 200K RA69 200K C437 1000pF C437 1000pF C449 1uF C449 1uF C442 1uF C442 1uF R420 4.7k R420 4.7k C453 680pF C453 680pF R430 1K R430 1K R435 10k R435 10k RA91 20K RA91 20K + C418 100uF_16V + C418 100uF_16V C462 4.7uF_16V C462 4.7uF_16V C457 1uF C457 1uF C452 680pF C452 680pF C471 0.1uF_16V C471 0.1uF_16V R425 5.1k R425 5.1k RA89 47K RA89 47K C448 330pF C448 330pF RA90 20K RA90 20K CA10 1000pF CA10 1000pF R427 1K R427 1K R411 0R R411 0R 5 4 3 2 1 D D C C B B A A TUNER_CLK2 TUNER_DATA2 AS RF_AGC OSDA0 OSCL0 IFN IFP RF_AGC DIF1_OUT1 DIF1_OUT2 IFN IFP RF_AGC_T TUNER_DATA2 TUNER_CLK2 DIF1_OUT2 RF_AGC_T GND_FIELD_SIGNAL AS TUNER_DATA2 TUNER_CLK2 +5V_VCC DIF1_OUT1 DIF1_OUT2 +5V_VCC DIF1_OUT1 +5V_VCC RF_AGC_T OSCL0 OSDA0 +5V_Tuner AVDD3V3_DEMOD AVDD1V2_DEMOD AVDD3V3 AVDD1V2 DVDD3V3 +5V_Tuner +12V +5V_Tuner GND 3,4,5,6,7,8,9,10 OSDA0 4,5,9 OSCL0 4,5,9 IFN 4 IFP 4 RF_AGC 4 Title Size Document Number Rev Date: Sheet of <Doc> 1.0 <Title> B 1 1 Saturday, February 04, 2012 Different signal ,keep the same trace width ,space and gnd shielding on top layer IF-BPF NEAR IC NEAR IC Tuner/Demod DEMOD POWER Near to tuner Tuner TUNER POWER +5V_TUNER Closed to Tuner Nearly IF Path Closed to IC L42 100nH L42 100nH R151 33 R151 33 CT140 NC_0.047uF CT140 NC_0.047uF CT21 0.1uF CT21 0.1uF RT129 100R RT129 100R + CET235 100uF_16V + CET235 100uF_16V 1 2 LT122 NC_0R LT122 NC_0R UT2 7805 UT2 7805 IN 1 GND 2 OUT 3 RT81 NS RT81 NS UT27 HFT3-96H-T116CW UT27 HFT3-96H-T116CW RF_AGC 1 NC 2 SDA 3 SCL 4 BM+5V 5 NC 6 IF_OUT2 7 IF_OUT1 8 NC 9 G 10 G 11 G 12 G 13 RT131 100R RT131 100R C148 56pF C148 56pF RT132 100R RT132 100R RM38 0R RM38 0R CT23 1uF CT23 1uF C99 0.01uF C99 0.01uF FBT12 FB FBT12 FB CT142 0.047uF CT142 0.047uF CT118 220pF CT118 220pF QT1 NC_2N7002 QT1 NC_2N7002 1 3 2 C101 0.01uF C101 0.01uF CT22 4.7uF_10V CT22 4.7uF_10V CT57 NC_0.1uF CT57 NC_0.1uF UT5 NC_CDT_3SC5I2-36 UT5 NC_CDT_3SC5I2-36 VT 1 AGC 2 TU 3 GND 4 AS 5 SDA 6 SCL 7 VCC 8 IF1 9 G 16 G 15 G 14 G 13 IF2 10 NC 11 NC 12 CM86 0.1uF CM86 0.1uF QT2 NC_2N7002 QT2 NC_2N7002 1 3 2 R145 33 R145 33 RT121 NC_4.7K RT121 NC_4.7K CT58 4.7uF_10v CT58 4.7uF_10v C149 56pF C149 56pF R146 33 R146 33 RT130 100R RT130 100R LT123 NC_0R LT123 NC_0R CM89 0.1uF CM89 0.1uF LT120 NC_0R LT120 NC_0R CT59 NC_4.7uF_10v CT59 NC_4.7uF_10v FBT112 NC_0R FBT112 NC_0R LT124 NC_0R LT124 NC_0R CT117 220pF CT117 220pF RT122 NC_4.7K RT122 NC_4.7K R150 33 R150 33 C107 220pF C107 220pF RM78 0R RM78 0R FBT113 NC_0R FBT113 NC_0R R147 100 R147 100 RT159 10K RT159 10K 5 4 3 2 1 D D C C B B A A ON/OFF +12V +48V LED-VCC LED-VCC DIM R536 R536 R512 R512 + C583 + C583 C511 C511 R537 R537 Q530 Q530 1 2 ZD511 ZD511 R533 R533 R511 R511 R530 R530 C551 C551 C530 C530 C532 C532 C581 MPP C581 MPP R532 R532 L1 L1 + C501 + C501 R531 R531 R540 R540 R583 R583 R581 R581 R535 R535 Q501 Q501 1 2 D501 D501 VDD 1 EA 2 CMP 3 INN 4 OVP 5 GND 6 GND 7 OUT 8 IC501 IC501 C531 C531 R534 R534 R542 R542 C582 MPP C582 MPP D530 D530 1 2 3 CN502 CONNECTOR-12_3 CN502 CONNECTOR-12_3 R580 R580 R541 R541 R551 R551 R582 R582 Q511 Q511 1 2 3 4 5 6 7 CN501 CONNECTOR-12_3 CN501 CONNECTOR-12_3 R552 R552 + C580 + C580 C521 C521 R521 R521 五、线路图SCHEMATIC1 升压板部分&电源部分 5 4 3 2 1 D D C C B B A A PS_ON +12V +24V +12V +5V 5VS +5V +5V PS_ON +12V +12V ON/OFF DIM 5VS +24V +24V +48V R201 R201 + C294 + C294 R226 R226 R103 R103 1 4 5 8 12 6 2 11 9 7 10 T201 EFD30 T201 EFD30 C304 C304 1 2 4 3 L101 L101 R225 R225 L271 L271 1 2 D291 D291 + C253 + C253 RV101 RV101 R281 R281 R102 R102 C201 C201 D261 D261 1 2 d241 d241 R251 R251 + C284 + C284 L281 L281 C222 C222 1 2 3 4 5 6 CN202 CN202 BD103 BD103 C254 C254 + C286 + C286 C301 C301 R302 R302 L 1 N 2 CN101 CN101 R253 R253 S 1 S 2 S 3 G 4 D 5 D 6 D 7 D 8 Q305 Q305 1 2 D292 D292 + C102 + C102 CY102 CY102 R289 R289 R282 R282 BD101 BD101 1 2 D272 D272 R252 R252 C241 C241 R293 R293 1 2 3 4 CN203 CN203 + C251 + C251 R227 R227 R271 R271 + C501 + C501 D252 DIODE D252 DIODE 1 2 D271 D271 IC222 IC222 R263 R263 R261 R261 R231 R231 R266 R266 C291 C291 + C283 + C283 R304 R304 R286 R286 C271 C271 C303 C303 R104 R104 R284 R284 C305 C305 F101 F101 C252 C252 GND 1 COMP 2 OTP 3 CS 4 VCC 5 OUT 6 IC201 IC201 R272 R272 R274 R274 S 1 S 2 S 3 G 4 D 5 D 6 D 7 D 8 Q304 Q304 1 2 4 3 IC221 IC221 1 2 4 3 L102 L102 R267 R267 1 2 t NR101 THERMISTOR t NR101 THERMISTOR R292 R292 S 1 S 2 S 3 G 4 D 5 D 6 D 7 D 8 Q303 Q303 C302 C302 D251 DIODE D251 DIODE R264 R264 R101 R101 + C274 + C274 1 2 D281 D281 R306 R306 C281 C281 Q261 Q261 BD104 BD104 C261 C261 C242 C242 1 2 3 4 5 6 7 8 9 10 11 12 13 CN201 CN201 R283 R283 C287 C287 R254 R254 R223 R223 CY101 CY101 CX101 CX101 R288 R288 + C272 + C272 R291 R291 + C101 + C101 R221 R221 R241 R241 R273 R273 BD102 BD102 R265 R265 C295 C295 C275 C275 R262 R262 Q201 Q201 L291 L291 1 2 3 4 5 6 7 8 CN204 CN204 R301 R301 C221 C221 CY202 CY202 1 2 D1 D1 + C293 + C293 R285 R285 + C282 + C282 R305 R305 + C292 + C292 R303 R303 Q301 Q301 R222 R222 Q302 Q302 R275 R275 C285 C285 升压板部分&电源部分第 2／2页 </p> <div class="main-left-down hidden-xl hidden-lg hidden-md">  <a href="http://www.wenhuiw.com/index.php?s=score&c=buy&m=index&module=wenku&id=8857" id="down_box_confirm" class="not-logged-in btn bg-green"><i class="fa fa-shopping-cart"></i> 立即购买</a> <p class="down-score">下载本素材需消耗 <span class="f-red">10</span> 积分</p> <p class="down-feedback">无法下载？<a class="hover:text-green-600" href="tencent://message/?uin=77594475" target="_blank">立即反馈</a></p> </div> <div class="tag">标签： </div> <div class="use-tip"> <h3>版权声明</h3> <p><b>1. 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