I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ! ! ! ! ! ! NP1 NP2 ND NS' NS ! + ~ ~ - VAL? ! ! ! ! ! V ! OUT VCC NC VH GND IS FB ZCD ! VCC D VSS SYNC VFB GND2 GND1 N2 N1 ! ! ! ! ! ! ! ! ! ! ! ! I I I I I I I I I I I I INV ZCD MULT GND CS GD COMP VCC I 2 3 4 1 I T T I I I I 17V GND DRAIN VC+ NS ND NP N L 3V COLD HOT C839 NC 16V 10R R805 R804 10R R835 10M R889 20K R841 20K D807A TZJ4V7 NC D807 D826 15V VBUS D817 18V AGND 4148WS D819 1 2 3 D825 BAV70L Q801 SK3568 3 2 1 BAV70L D823 R839 10K R837 0.1R PGND PGND PGND PGND D811 RL255 3A/600V 4K7 R875 R863 0R R878 22R 22R R822 22R R879 R821 3K3 3K3 R824 10 3 6 7 8 9 1 2 4 5 T802 100P C844A C842 220P PGND C844B 100P C844 1000P Z122 10R R849 4148WS D828 68R R871 L806 2.2UH C825 0.1U R831 220R C827 1000P Z2 R828 390K R870 1K Z129 27K R887 1 2 3 D806 YG902C Z4 R809 10R 3R R860 BL_ON R814 220K 510K R815 R808 220R 3R R869 Z128 0.1U C813 20V D803 0.047U C830 1 4 3 2 K801 450V 4U7 C806 R817 4R7 R872 100R R816 470K 12K7 R847 R861 240K 510K R813 1U C816 C814 0.1U Z125 AGND +3.3VSB/0.2A AGND 1 5 3 6 4 7 2 8 U806 L6562A Z130 Z67 Z109 Z117 Z5 Z41 Z7 Z22 Z21 PGND Z42 Z32 R886 1K R803 22K Z1 R853A 240K D801 8V2 R874 47K 1 10 11 12 2 3 4 5 6 7 8 9 P802 FR104 D829 C807 330P R859 0.33R NC L805 C815 680P R807 47R 47R R806 5K1 R853 C820 0.15U R838 1K2 470R R881 C812 1U R829 100R 27K R866 R888 39K 47P C801 4R7 R865 6K8 R864 R880 6K8 4K7 R885 10K R868 0.1U C835 1000P C824 470P C832 0.01U C837 R844 20K R846 4K7 4K7 R846A 0.1U C821 R877 1K R867 1K F801 5.0A 250VAC 4148WS D820 PGND 10K R842 R843 4K7 D814 FR104 AGND 47R R873 3K R852 C811 1U 18V D802 D805 18V VBUS 12 4 1 8 10 7 6 3 2 5 9 11 L801 D815 1N4007 PGND C803 22U 50V PGND PGND 25V 10U C802 PGND PGND C836 0.47U 160V C822 0.1U C808 0.47U 10K R876 R802 220K 35V 1000U C805 5 7 8 4 3 2 1 6 U801 FSQ510 D824 FR104 L803 C847 NC PGND PGND D818 BYV29-600 1 3 4 2 L809 LIF-JLB1359 4148WS D822 PGND AGND 5 6 7 8 4 3 2 1 U805 FA5571N R820 75R R854 10K 1 2 3 U807 TL431_1V25 4 3 2 1 L804 AGND R830 560V 1N4007 D816 4 3 2 1 L808 1 2 3 4 U804 PS2561 4 3 2 1 U802 PS2561 AGND AGND PGND PGND AGND AGND AGND AGND AGND AGND PGND PGND AGND AGND AGND AGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND PGND NC R856 D813 HER108 C823 0.47U C809 0.47U C841 1500P B C E BC847A Q808 1 2 3 TL431 U808 B C E BC847A Q807 C826 3300P 56K R858 D810 HER108 L802 Q803 P7NK80 1K R845 200R R850 R862 390K B C E Q805 2222AL 1 2 3 P801 R819 22K R826 4K7 R827 4K7 B E C Q811 2907AL D809 SR160 D804 US10KB80R 22K R840 12K R848 C817 0.01U 50V B E C Q809 2907AL R855 27K 0.022U C818 0.1U C819 3K3 R823 1M R810 1M R811 1M R812 D812 RL255 3A/600V C840 120U 450V 12 2 3 5 7 10 6 4 1 9 11 8 T801 C840A 120U 450V 1 2 3 4 PS2561 U803 C828 0.22U 470P C843 C845 470P 2R7 R825 D808 1N4007 C829 470U 35V C804 1000U 35V SK3568 Q802 C838 470U 16V R801 2R7 VC PGND PGND PGND PGND PGND PGND AGND AGND AGND AGND AGND AGND PGND PGND PGND PGND PGND AGND PGND VC Z25 Z105 Z106 Z107 Z108 Z110 Z111 Z112 Z113 Z114 Z115 Z116 Z118 Z119 Z120 Z121 Z123 Z124 Z26 Z27 Z28 Z29 Z30 Z31 Z33 Z34 Z35 Z36 Z37 Z38 Z39 Z40 Z43 Z44 Z45 Z46 Z47 Z48 Z49 Z50 Z51 Z52 Z53 Z126 Z127 AGND AGND Z19 Z20 P_ON Z18 Z16 DIM Z17 Z14 Z15 Z8 Z10 Z9 Z11 Z12 Z6 Z3 AGND Z13 Z73 Z131 PGND C810 NC 4700UH L807 Z132 PGND +24V/2A PGND PGND AGND 15V D827 家电维修资料网 www. 520101. com www. 520101. com 家电维修资料网 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ! ! ! ! I I I I ADIM BST1 BST2 CT ENA GNDA HDR1 HDR2 ISEN LCT LDR1 LDR2 LX1 LX2 OVPT PDIM RPT SSTCMP SYNC TIMER UVLS VIN VREF VSEN_POL I NS1 NS2 NP NS1 NS2 NP I I HOT COLD For AUO-40" D910 1N4148W E C B BT3904 Q925 1 2 3 D918 BAV70L 1 2 3 4 5 6 7 P903 47R R955A R955 47R AGND AGND 33P C902A 33P C902 C901A 33P C901 33P Z136 0.1U C934 3 2 1 NC D913 R981 10K C931 0.022U C922 0.01U Z82 VREF 0.47U C932 C933 1U AGND R980 220R 4148WS D902 D917 13V C923 0.1U AGND C909 0.47U 22R R901 4K7 R979 B C E Q906 BT3904 5V1 D906 BL_ON 4148WS D908 5 4 2 1 9 8 7 6 3 10 T902 10 3 6 7 8 9 1 2 4 5 T901 AGND Z74 R969 39K 56K R932 B C E Q912 BT3906 12 11 23 4 3 2 1 10 9 8 7 6 5 13 14 15 17 18 19 20 21 16 22 24 U901 OZ9926A 1 3 2 RW977 5K R978 NC R958 820R R957 82K R977 NC 2 1 Y3 10K R928 33K R934 NC R930 C930 0.022U Z83 2 3 1 470R RW978 C917A NC AGND AGND 220P C917 AGND Z84 R948 10R 4148WS D903 D904 4148WS 10K R967 Z68 Z64 1U C911 C910 1U R906 100R 100R R905 100R R909 R925 100R R924 100K C915 1U C915A 0.47U NC C906 B C E Q923 BT3904 C905 NC 1K R953 AGND C907 1U AGND C914 1U 4148WS D909 C920 0.022U 2K2 R915 0.047U C916 C927 4700P R968 47K R927 4K7 R941 0R R912 100R 10K R911 R949 1K 10R R947 1K R946 R910 10K 100R R923 R913 100R 10K R914 R950 1K 10R R951 100R R922 R917 10K R952 10R 0.47U C903 0.01U C924 4K7 R976 470P C913 C921 1000P 2K2 R964 R944 10K 10K R945 100R R954 R931 10K C918 4700P 750K R962 VREF D905 4148WS R961 200R 200R R963 200R R972 R970 200R 220R R919 200R R959 R960 200R R974 200R 200R R971 R921 220R R920 200R 200R R916 R936 200R 200R R940 R937 200R 200R R939 200R R935 R938 200R R973 200R 200R R975 R902 4R7 R966 4K7 4K7 R903 R918 4K7 F7N50F Q902 D901 4148WS R942 100R AGND R882 1K 2 4 1 3 T904 2 4 1 3 T903 AGND AGND B C E Q924 BT3906 E C B BT3904 Q922 1 2 3 D916 BAV70L AGND AGND 47K R956 PGND +24V/2A DIM 1 2 P902 AGND AGND AGND AGND E C B BT3906 Q909 AGND E C B BT3904 Q907 AGND AGND D907 4148WS AGND AGND AGND AGND AGND AGND AGND AGND PGND R908 2K2 R904 2K2 R907 2K2 R926 2K2 C912 0.47U Q903 F7N50F F7N50F Q904 Q901 F7N50F 2N7002 Q913 C908 1U Q914 2N7002 E C B BT3906 Q916 B C E Q919 BT3906 E C B BT3906 Q917 B C E Q918 BT3906 E C B BT3906 Q910 LDR1 HDR1 LDR2 HDR2 E C B BT3904 Q905 B C E Q911 BT3906 B C E Q908 BT3904 Q920 2N7002 2 1 P901 2N7002 Q915 VBUS AGND AGND AGND AGND AGND AGND AGND AGND Z54 Z55 Z56 Z57 Z58 Z59 Z60 Z61 Z62 Z63 HDR2 Z65 LDR1 Z66 LDR2 Z69 Z70 Z71 Z72 HDR1 Z75 Z76 Z77 Z78 Z79 Z80 Z81 Z85 Z86 Z87 Z88 Z89 Z90 Z91 Z92 Z93 Z94 Z95 Z96 Z97 Z98 Z99 Z100 Z101 Z102 Z103 Z104 Z24 Z23 AGND AGND Z133 Z134 Z135 +24V/2A LD 家电维修资料网 www. 520101. com www. 520101. com 家电维修资料网