5 5 4 4 3 3 2 2 1 D C A Vac PFC VCC1 +5Vsb +5Va +5Vsb +5Va Vac VCC1 PFC RF918 510K RF918 510K CB904 105 CB904 105 C909 400Vac-101 C909 400Vac-101 DF902 FMY-1106S DF902 FMY-1106S RB907 51K/1206 RB907 51K/1206 1 2 3 2N7002 QB904 2N7002 QB904 C908 400Vac-101 C908 400Vac-101 CB902 104 CB902 104 RB916 1K RB916 1K R907 1M/1206 R907 1M/1206 CF914 101 CF914 101 CF915 101/1KV CF915 101/1KV DB901 1n4007 DB901 1n4007 RB909 1K RB909 1K CB957 106 CB957 106 RF927 390K RF927 390K R950 8.2M/2W R950 8.2M/2W DB902 FR104 DB902 FR104 VCC 2 Drain 8 Vstr 5 FB 3 GND 1 Sync 4 Drain 7 Drain 6 FSQ0265R UB901 FSQ0265R UB901 CB903 104 CB903 104 R906 1M/1206 R906 1M/1206 C907 400Vac-471 C907 400Vac-471 RB954 2.2K RB954 2.2K CF908 474 CF908 474 RF907 100K/1206 RF907 100K/1206 ZDF903 B16V ZDF903 B16V 4 2 3 1 L903 15mH L903 15mH 1 2 F901 250V-T3.15AL F901 250V-T3.15AL RB905 390K RB905 390K 2 3 1 QF902 FQPF18N50 QF902 FQPF18N50 3 2 1 UB952 TL431 UB952 TL431 R903 1M/1206 R903 1M/1206 RF926 20K RF926 20K 10 1 12 5 LF902 PQ3220/250uH LF902 PQ3220/250uH CB909 470 CB909 470 1 2 3 DB904 BAV70 DB904 BAV70 C910 400Vac-102 C910 400Vac-102 1 2 LB951 3.3uH LB951 3.3uH CF916 472/1KV CF916 472/1KV RV901 14K561 RV901 14K561 RB953 2.4K/F RB953 2.4K/F RF919 68K RF919 68K RF910 10R/1206 RF910 10R/1206 RB952 1K RB952 1K C905 275Vac-224 C905 275Vac-224 DW952 SR360 DW952 SR360 ZDB902 B16V ZDB902 B16V RF905 68R RF905 68R CF906 473 CF906 473 RF908 680K/1206 RF908 680K/1206 RF911 0.12R/3W RF911 0.12R/3W CB908 105 CB908 105 1 3 2 4 L901 3.5mH L901 3.5mH CB952 102/1KV CB952 102/1KV RB906 51K/1206 RB906 51K/1206 1 2 LB901 LB901 RB911 6.2K/F RB911 6.2K/F DW954 SR360 DW954 SR360 1 HS1 HEATSINK HS1 HEATSINK CB906 22uF/50V CB906 22uF/50V RB914 100K/2W RB914 100K/2W RF923 100K RF923 100K RT901 3R3D15M RT901 3R3D15M RF924 18K RF924 18K 1 5 2 3 6 7 8 TB901 EEL19 TB901 EEL19 RB951 220R RB951 220R 1 2 4 3 UB951 PC817B UB951 PC817B GND 6 ZCD 5 VCC 8 CS 4 COMP 3 INV 1 MOT 2 DRV 7 UF901 FAN7530 UF901 FAN7530 CF901 105uF/450V CF901 105uF/450V CB907 22uF/50V CB907 22uF/50V CF905 105 CF905 105 RF915 680K/1206 RF915 680K/1206 RF917 510K RF917 510K RF922 20R/1206 RF922 20R/1206 1 2 LF903 LF903 RB950 10R/1206 RB950 10R/1206 C902 400Vac-101 C902 400Vac-101 RF920 22R RF920 22R DF901 RGP30J-3A-600V DF901 RGP30J-3A-600V 1 2 3 DB903 BAV70 DB903 BAV70 CB910 104 CB910 104 RF916 10K RF916 10K CB901 122/1.6KV CB901 122/1.6KV 1 HS2 HEATSINK HS2 HEATSINK CB905 22uF/50V CB905 22uF/50V RB908 10R RB908 10R RB910 51R RB910 51R CF911 102 CF911 102 1 2 3 QB901 5160 QB901 5160 RB903 1.5M/1206 RB903 1.5M/1206 CB954 104 CB954 104 RB901 1.5M/1206 RB901 1.5M/1206 RB956 100K/F RB956 100K/F CF903 150uF/450V CF903 150uF/450V 1 2 3 DF903 BAV70 DF903 BAV70 1 3 2 QB903 4160 QB903 4160 1 2 XS901 3PIN-3.96mm XS901 3PIN-3.96mm CB956 N.C CB956 N.C CB955 104 CB955 104 1 HS3 HEATSINK HS3 HEATSINK RF928 NC RF928 NC RB913 4.7R/1206 RB913 4.7R/1206 RF903 10K RF903 10K RF925 100R RF925 100R CF907 470 CF907 470 3 2 1 QB902 3904 QB902 3904 R904 1M/1206 R904 1M/1206 C906 400Vac-471 C906 400Vac-471 C901 400Vac-101 C901 400Vac-101 CB953 2700uF/10V CB953 2700uF/10V 3 4 U902B PC817B U902B PC817B 2 3 1 4 - + BD901 RS1005M - + BD901 RS1005M CF902 105uF/450V CF902 105uF/450V RB955 2.4K/F RB955 2.4K/F 1 2 LF901 150uH LF901 150uH CB951 470uF/10V CB951 470uF/10V RB915 5.1k RB915 5.1k R902 1M/1206 R902 1M/1206 C903 275Vac-224 C903 275Vac-224 RB902 1.5M/1206 RB902 1.5M/1206 ZDB901 N.C ZDB901 N.C RB904 47K RB904 47K RB912 12K/F RB912 12K/F RB917 5.1K/F RB917 5.1K/F R908 1M/1206 R908 1M/1206 1 2 LF904 LF904 CF904 104/250V CF904 104/250V RF921 20R/1206 RF921 20R/1206 PDF 文件以 "PDF 制作工厂" 试用版创建 ÿÿÿÿ ÿ � 家电维修资料网 www. 520101. com www. 520101. com 家电维修资料网 欠压控制电路 PFC电源控制电路 5 5 4 4 3 3 2 2 +24V PFC +12V +12VA +24V +12V +24VA +12VA VCC2 VCC1 PFC +5VSB +5Vsb +5Vsb +24VC +12V +24V +12VC PS_ON +12VC +24VC +5Vsb +5Vsb +5Vsb DW905 1N4007 DW905 1N4007 RW953 4.7K/1206 RW953 4.7K/1206 R964 2K R964 2K RW914 1.5M/1206 RW914 1.5M/1206 ZD952 B27V ZD952 B27V RW907 47K RW907 47K R986 10K R986 10K R965 47k R965 47k 1 3 2 DW955 MBRB20100CT DW955 MBRB20100CT CW954 470u/25V CW954 470u/25V CW953 104 CW953 104 C967 105 C967 105 1 2 UW903A PC817B UW903A PC817B C959 104 C959 104 3 2 1 U953 TL431 U953 TL431 R952 82K/F R952 82K/F CW957 470u/35V CW957 470u/35V C960 104 C960 104 3 2 1 U954 TL431 U954 TL431 RW916 1.5M/1206 RW916 1.5M/1206 C968 105 C968 105 R971 47K R971 47K R967 330 R967 330 R969 22k R969 22k RW902 10R RW902 10R R978 1K R978 1K C955 104 C955 104 R953 20K/F R953 20K/F R951 5.1K R951 5.1K LW951 2.2uH LW951 2.2uH RW954 10K/1206 RW954 10K/1206 CW961 1000u/35V CW961 1000u/35V CW903 105 CW903 105 10 9 8 4 11 - + U956C LM324 - + U956C LM324 RW921 0.12R/3W RW921 0.12R/3W CW959 1000u/35V CW959 1000u/35V C966 105 C966 105 CW963 22uF/50V CW963 22uF/50V R988 100K R988 100K D954 L4148 D954 L4148 7 6 8 1 15 10 3 2 TW902 EFD40/105uH/600uH TW902 EFD40/105uH/600uH RW955 10K/1206 RW955 10K/1206 R962 1K R962 1K C958 N.C C958 N.C R977 1K R977 1K 5 6 7 4 11 - + U956B LM324 - + U956B LM324 ZD953 B16V ZD953 B16V 1 2 3 D951 BAV70 D951 BAV70 CW962 33u/50V CW962 33u/50V R989 1K R989 1K R972 39K R972 39K C965 103 C965 103 CW901 104 CW901 104 R966 330 R966 330 R976 10K R976 10K RW917 1.5M/1206 RW917 1.5M/1206 3 2 1 4 11 - + U956A LM324 - + U956A LM324 R955 10K R955 10K 12 13 14 4 11 - + U956D LM324 - + U956D LM324 R956 6.8K/F R956 6.8K/F R960 47k R960 47k 1 3 2 DW953 MBRB2045CTG DW953 MBRB2045CTG CW956 104 CW956 104 R963 100K R963 100K R970 10K R970 10K RW951 5mR/2W RW951 5mR/2W R968 22k R968 22k R974 1K R974 1K RW908 5.1K RW908 5.1K RW910 1K RW910 1K RW952 5mR/2W RW952 5mR/2W 1 2 3 D953 BAV70 D953 BAV70 C956 104 C956 104 LW952 2.2uH LW952 2.2uH R954 3K R954 3K CW912 104 CW912 104 1 2 3 Q951 3906 Q951 3906 1 2 3 QW905 5160 QW905 5160 R987 10K R987 10K RW911 1.5K RW911 1.5K C964 104 C964 104 RW913 10K RW913 10K R973 1K R973 1K RW901 2.7R RW901 2.7R 1 2 3 D952 BAV70 D952 BAV70 1 3 2 DW951 MBRB20100CT DW951 MBRB20100CT CW955 1500u/25V CW955 1500u/25V RW912 1.5K RW912 1.5K R961 47K R961 47K 3 2 1 U952 TL431 U952 TL431 RW956 4.7K/1206 RW956 4.7K/1206 1 2 U902A PC817B U902A PC817B CW904 223 CW904 223 ZD951 B13V ZD951 B13V C951 104 C951 104 VDL 1 VCTR 10 HVcc 9 PG 6 CS 4 LVcc 7 SG 5 NC 8 CON 2 RT 3 UW902 FSFR1700 UW902 FSFR1700 RW909 7.5K RW909 7.5K RW957 10K/1206 RW957 10K/1206 RW915 1.5M/1206 RW915 1.5M/1206 CW906 102 CW906 102 C961 104 C961 104 CW911 473/1KV CW911 473/1KV R985 1K R985 1K 1 3 2 Q954 3904 Q954 3904 C957 N.C C957 N.C R957 6.8k/F R957 6.8k/F 3 4 UW903B PC817B UW903B PC817B 1 3 2 Q952 3904 Q952 3904 PDF 文件以 "PDF 制作工厂" 试用版创建 ÿÿÿÿ ÿ � B B +5Vsb +12V PS_ON +24V Tss=20ms~30ms SEL/NC BL/ON ADJ PWM 1 2 3 4 XS954 4PIN-2.0mm XS954 4PIN-2.0mm R984 N.C R984 N.C R979 N.C R979 N.C 1 2 3 4 5 XS953 5PIN-3.96mm XS953 5PIN-3.96mm R981 1k R981 1k R983 N.C R983 N.C R982 N.C R982 N.C R980 N.C R980 N.C 1 2 3 4 5 6 7 8 9 10 11 12 13 14 XS955 14PIN-2.0mm XS955 14PIN-2.0mm 家电维修资料网 www. 520101. com www. 520101. com 家电维修资料网 PFC欠压控制输出部分电路 设定范围 70-160KHz之间