LG 50PW450 Service Manual - Page 18

SMAW250-H04R P301 H-NIM Tuner TU300 TDTJ-S001D +5V_TU ANT_PWR[OPT] 1 BST_CNTL 2 +B 3 NC[RF_AGC] 4 AS 5 SCL 6 SDA 7 NC[IF_TP] 8 SIF 9 R313 22 R314 22 C301 0.1uF 16V C304 0.1uF 16V C307 22uF 10V +3.3V_TU R319 1.2K R326 1.2K TU_SCL C305 10pF 50V READY C306 10pF 50V READY TU_SDA NC 10 VIDEO 11 GND 12 +1.26V_TU +3.3V_TU +3.3V_TU 1.2V 13 3.3V 14 RESET 15 Close to Tuner R334 100 R335 10K IF_AGC_CNTL 16 (Should be guarded by GND) DIF_1 17 DIF_2 18 IF_AGC_MAIN IF_N_MSTAR IF_P_MSTAR C308 0.1uF 16V 19 SHIELD C300 0.1uF 16V C302 0.1uF 16V - Should be guarded by GND - No Via - Width(Signal) : min 12mm GND(Signal) : min 24mm TUNER_RESET R338 4.7K +5V_TU R341 470 R344 82 ISA1530AC1 Q300 TU_SIF +5V_TU R343 0 READY R345 200 R349 200 E Q301 ISA1530AC1 B C +5V_TU R342 0 READY R346 200 EU R348 200 EU TU_CVBS ATV_OUT ISA1530AC1 Q302 EU Audio AMP +3.3V R370 10K READY R373 0 AMP_MUTE R367 10K B READY C READY Q303 2SC3052 19 EAPD/OUT4B E READY R374 0 TWARN/OUT4A 20 C331 0.1uF 50V 21 VDD_DIG_1 AC_DET R365 22 GND_DIG_1 22R375 23 PWRDN @compC 18 OUT3A/FFX3A 17 OUT3B/FFX3B 16 CONFIG 15 VDD C335 0.1uF 50V 14 GND_REG 2.2 24 VDD_PLL 13 OUT1A R381 20 L302 10.0uH C347 0.22uF C351 1000pF R366 R371 2K C327 0.1uF 16V C328 4700pF 50V A U D _ M0A S T E R _ C L K READY C355 22pF 50V C333 680pF FILTER_PLL 50V GND_PLL 22R376 XTI 25 26 2 7C l o s e - b y 12 11 Close-by 10 GND1 VCC1 OUT1B C3361uF 25V C337 0.1uF 50V C342 330pF 50V L303 10.0uH C345 0.22uF 50V 50V C348 0.22uF 50V 50V C352 1000pF 50V 4 3 AUD_SCK READY AUD_LRCK READY AUD_LRCH READY AMP_RESET_N C356 22pF 22R377 50V C357 22pF 22R378 50V C358 22pF 22R379 50V 22R380 28 BICKI 29 LRCKI 30 SDI 31 RESET R359 2K R315 22 32 INT_LINE 9 OUT2A C343 C338 1uF 25V 330pF L304 10.0uH 2 C349 C353 8 VCC2 C339 0.1uF 50V 50V 0.22uF 1000pF C346 0.22uF 50V 50V 1 50V 7 Close-by GND2 R382 20 L305 10.0uH C350 0.22uF 50V C354 1000pF 50V 6 P_17V C340 OUT2B 0.1uF 50V 5 C334 VCC_REG 0.1uF 50V C341 68uF 35V C344 68uF 35V READY AMP_SDA R360 2K R316 22 33 SDA 4 VSS 37 AMP_SCL 34 SCL 3 TEST_MODE R372 10K C329 0.1uF 50V C332 0.1uF 50V GND_DIG_2 VDD_DIG_2 35 36Close-by [EP]GND 2 SA 1 GND_SUB STA368BWG IC303 TE2P TE2N TD2P TD2N TCLK2P TCLK2N TC2P TC2N TB2P TB2N TA2P TA2N TE1P TE1N TD1P TD1N TCLK1P TCLK1N TC1P TC1N TB1P TB1N TA1P TA1N SDA_3.3V_MOD DISP_EN SCL_3.3V_MOD PC_SER_DATA PC_SER_CLK UART_RXD UART_TXD 0 0 ¡ THERMAL R835 R836 HD P701 TF05-51S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 LVDS +3.3V R781 R807 2.2K 0 R809 4.7K S G D P_SDA Q701 2N7002(F) +3.3V R780 R806 2.2K 0 R808 4.7K SDA_3.3V_MOD S G D P_SCL Q700 2N7002(F) SCL_3.3V_MOD LVDS_DATA_2_E+ LVDS_DATA_2_ELVDS_DATA_2_D+ LVDS_DATA_2_D- LVDS_CLK_2+ LVDS_CLK_2LVDS_DATA_2_C+ LVDS_DATA_2_CLVDS_DATA_2_B+ LVDS_DATA_2_BLVDS_DATA_2_A+ LVDS_DATA_2_ALVDS_DATA_1_E+ LVDS_DATA_1_ELVDS_DATA_1_D+ LVDS_DATA_1_DLVDS_CLK_1+ LVDS_CLK_1LVDS_DATA_1_C+ LVDS_DATA_1_CLVDS_DATA_1_B+ LVDS_DATA_1_BLVDS_DATA_1_A+ LVDS_DATA_1_A- R794 2D 0 R795 2D 0 R796 2D 0 R797 2D 0 R798 2D 0 R799 2D 0 R800 2D 0 R801 2D 0 R802 2D 0 R803 2D 0 R804 2D 0 R805 2D 0 R782 2D 0 R783 2D 0 R784 2D 0 R785 2D 0 R786 2D 0 R787 2D 0 R788 2D 0 R789 2D 0 R790 2D 0 R791 2D 0 R792 2D 0 R793 2D 0 R822 2D 0 R823 2D 0 R824 2D 0 R825 2D 0 R826 2D 0 R827 2D 0 R828 2D 0 R829 2D 0 R830 2D 0 R831 2D 0 R832 2D 0 R833 2D 0 R810 2D 0 R811 2D 0 R812 2D 0 R813 2D 0 R814 2D 0 R815 2D 0 R816 2D 0 R817 2D 0 R818 2D 0 R819 2D 0 R820 2D 0 R821 2D 0 TE2P TE2N TD2P TD2N TCLK2P TCLK2N TC2P TC2N TB2P TB2N TA2P TA2N TE1P TE1N TD1P TD1N TCLK1P TCLK1N TC1P TC1N TB1P TB1N TA1P TA1N IR KEY1 KEY2 LED_RED SUB_SCL SUB_SDA +3.3V_ST R632 R634 R628 10K 10K 10K C648 10pF R639 10K R629 4.7K B +3.3V_ST R633 R635 4.7K 4.7K +3.3V_ST C Q602 2SC3052 E R630 22 R631 22 C645 10pF READY C646 0.1uF 16V ZD601 5.6B C649 10pF READY TOUCH_VER_CHK Key/IR P602 12507WS-15L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SDA_3.3V_MOD DISP_EN SCL_3.3V_MOD PC_SER_DATA PC_SER_CLK TE4P TE4N TD4P TD4N TCLK4P TCLK4N TC4P TC4N TB4P TB4N TA4P TA4N TE3P TE3N TD3P TD3N TCLK3P TCLK3N TC3P TC3N TB3P TB3N TA3P TA3N TE2P TE2N TD2P TD2N TCLK2P TCLK2N TC2P TC2N TB2P TB2N TA2P TA2N TE1P TE1N TD1P TD1N TCLK1P TCLK1N TC1P TC1N TB1P TB1N TA1P TA1N UART_RXD UART_TXD R842 0 R849 0 FHD P703 104060-8017 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright © 2011 LG Electronics Inc. All rights reserved. Only for training and service purposes GP2R_S7R Tuner/Audio Amp LVDS / Key-IR 2010-08-31 3 LGE Internal Use Only