松下AZ7310限位开关(集成电路检测与维修下篇（IC检测经验）)

Posted 2023-05-29

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松下AZ7310限位开关(集成电路检测与维修下篇（IC检测经验）)

（一）常用的检测方法

　　集成电路常用的检测方法有在线测量法、非在线测量法和代换法。

　　1.非在线测量非在线测量潮在集成电路未焊入电路时，通过测量其各引脚之间的直流电阻值与已知正常同型号集成电路各引脚之间的直流电阻值进行对比，以确定其是否正常。

　　2.在线测量在线测量法是利用电压测量法、电阻测量法及电流测量法等，通过在电路上测量集成电路的各引脚电压值、电阻值和电流值是否正常，来判断该集成电路是否损坏。

　　3.代换法代换法是用已知完好的同型号、同规格集成电路来代换被测集成电路，可以判断出该集成电路是否损坏。

160种开关电源集成电路代换表

本表收集整理了彩电LG、SVA、TCL、长虹、春兰、创维、东芝、飞利浦、福日、高路华、海尔、海信、金星、康佳、康力、乐华、日立、三星、三洋、松下、索尼、夏普、厦华、熊猫等二十四个机种的160种开关电源集成电路的代换资料，含盖了2000多种机型的开关电源的集成电路。

本表所列开关电源集成电路以26个英文字母顺序为序，便于速查。

型号	代换型号
56A245-2	STR440, STR441, STR446
56A246	IX0256CE, IX0512CE, IX0465CE, IX0654CE, STR40090, STR41090, HKD41090
BU4020B	HA17555PS, HA17555, HA17555GS, HD14020B
HA17555	HA17555PS, BU4020B, HA17555GS, HD14020B
HA17555GS	HA17555, HA17555PS, BU4020B, HD14020B
HA17555PS	BU4020B, HA17555, HA17555GS, HD14020B
HD14020B	HA17555, HA17555PS, HA17555GS, BU4020B
HG5312	STR5314, STR5395, STR5412, STR5418, HG5313, HKD5412, KWY5412
HG5412	STR5312, STR454, STR5313, STR5314, STR5395, STR5418
HG5313	STR5314, STR5395, STR5412, STR5418, HG5312, HD5412, KWY5412
HKD0689	STK7358, IX9689CE, IX0689CK
HKD40115	STR40115, STR4412, STR50103, STR50103A, STR50115B
HKD41090	IX0256CE, IX0512CE, IX0465CE, IX0654CE
HKD4211	STR4211, STR4211H, STR4060, STR4090, STR4090S
HKD54041	STR54041, STR58041, STR59041, KWY54041
HKD6020	STR6020, STR6020S
HKD9502	STR450A, STR451, STR452, STR454, STR455, STR456, STR514, IX0205CE
HM7941	HRL7101, HM7103, HRL7103
HM8801G	KM8901A, KM8901, KM8916, KM8951B, KM8951, KC8801G
HM9101	HM9102, HRL9102, HRL201
HM9102	HM9101, HRL9102, HRL201
HM7103	HRL7101, HRL7103, HM7941
HM9201	HM9203, HM9204, HM9205, HM9206, HM9207
HM9203	HM9201, HM9205, HM9206, HM9207
HM9204	HM9203, HM9205, HM9206, HM9207
HM9205	HM9201, HM9203, HM9204, HM9206, HM9207
HRL201	HM7941, HRL7101
HRL7103	HRL7101, HM7103, HM7941
HRL9102	HM9101, HM9102, HRL201
HSY114	JU0003, JU0008, JU0086, JU0111,JU0114, JU0116, JU0130
HRL7101	HM7103, HRL7103, HM7941
IX0247CE	STR4090, IX0323CE
IX0205CE	STR4501A, STR451, STR452, STR454, STR453, STR456, STR514, HKD9502
IX0256CE	IX0512CE, IX0465CE, IX0645CE, STR41090, STR40090
IX0308	IX0308C, IX0308CE, IX0308CEZZ, STK7308, STK7309
IX0308C	IX0308, IX0308CE, IX0308CEZZ, STK7308, STK7309
IX0308CE	IX0308, IXO308C, IX0308CEZZ, STK7308, STK7309
IX0308CEZZ	IX0308, IX0308C, STK7308, STK7309
IX0323CE	STR4090, IX0247CE
IX0387CE	STR7308
IX0465CE	IX0512CE, IX0645CE, STR41090, STR40090, 56A246, HKD41090
IX0467CE	STK4060, STK4090, STK4090S, STR4060, STR4090, STR4090S
IX0512CE	IX0256CE, IX0465CE, IX0645CE, STR41090, STR40090
IX0645CE	IX0256CE, IX0512CE, IX0465CE, STR41010, STR40090, 56A246, HKD41090
IX0689CE	STR7358, IX0689CEZZ, STK73508, STK7359
IX0689CEZZ	STK7358, IX0689CE, STK73508, STK7359
IX0689CK	STK7358, HKD0689, IX0689CE
JU0003	JU0008, JU0086, JU0111, JU0114, JU0116, JU0130, HSY114
JU0008	JU0003, JU0086, JU0111, JU0114, JU0116, JU0130, HSY114
JU0086	JU0003, JU0008, JU0111, JU0114, JU0116, JU0130, HSY114
JU0111	JU0003, JU0008, JU0086, JU0114, JU0116, JU0130, HSY114
JU0114	JU0003, JU0008, JU0086, JU0111, JU0116, JU0130, HSY114
JU0116	JU0003, JU0008, JU0086, JU0111, JU0114, JU0130, HSY114
JU0130	JU0003, JU0008, JU0086, JU0111, JU0114, JU0116, HSY114
KG8801G	KM8801G, KM8901A, KM8901, KM8910, KM8951B
KM8901	KM8801G, KM8901A, KM8916, KM8951B, KM8951, KG8801G
KM8901A	KM8801G, KM8901, KM8916, KM8951B, KM8951, KG8801G
KM8916	KM8801G, KM8901A, KM8901, KM8951B, KM8951, KG8801G
KM8951	KM8801G, KM8901A, KM8901, KM8916, KM8951B, KG8801G
KM8951B	KM8801G, KM8901A, KM8901, KM8916, KM8951, KG8801G
KWY54041	STR54041, STR59041, STR58041, HKD54041
KWY5412	STR5314, STR5395, STR5412, STR5418, HG5312, HG5313, HKD5412
LA5110	LA5112
LA5112	LA5112H, LA5112N
LA5112H	LA5112, LA5112N
LA5112N	LA5112, LA5112H
MC33066	MC34067
MC34067	MC33066
MC3520	UC3520
MC44603	MC44603A, MC44603P
MC44603A	MC44603, MC44603P
STK4060	IX4067CE, STK4090, STK4090S, STR4060, STR4090, STR4090S
STK4090	IX0467CE, STK4060, STK4090S, STR4060, STR4090, STR4090S
STK5325	STK5326
STK5326	STK5325
STK5338	STK5340
STK5372	STK5372H, STK5471
STK5372H	STK5372, STK5471
STK5391	STK5392
STK5471	STK5372, STK5372H
STK73010	STK7308, IX0308CE, STK7309, STK7310
STK7308	IX0308CE, STK7309, STK73010, STK7310
STK7309	STK7308, IX0308CE, STK73010, STK7310
STK7310	STK7308, IX0308CE, STK7309, STK73010
STK73508	STK7358, IX0689CE, IX0689CEZZ, STK7359
STK7358	IX0689CE, IX0689CEZZ, STK73508, STK7359
STK4090S	IX0467CE, STK4060, STK4090, STR4060, STR4090, STR4090S
STR40115B	STR-D4412, STR4015, STR4412, STR50103A, STR50115B, STR50213, STR50213M, STR51213, STR-D4512
STR40090	IX0256CE, IX0512CE, IX0465CE, IX0654CE, STR41090, 56A246, HKD41090
STR4060	IX0467CE, STK4060, STK4090, STK4090S, STR4090, STR4090S
STR4090	IX0467CE, STK4060, STK4090, STK4090S, STR4060, STR4090S
STR4090S	IX0467CE, STK4060, STK4090, STR4060, STR4090, STK4090S
STR41090	IX0256CE, IX0512CE, IX0465CE, IX0645CE, STR40090, 56A246, HKD41090
STR440	56A245-2, STR441, STR442, STR446
STR40115	STR-D4412, STR40115B, STR4412, STR-50103A, STR50115B, STR50213, STR50213M, STR51213, STR-D4512 &nb, sp;
STR4211	STR4211H, STR4060, STR4090, STR4090S, HKD4211
STR4211H	STR4211, STR4060, STR4090, STR4090S, HKD4211
STR441	STR440, STR442, STR446, 56A245-2
STR4412	STR-D4412, STR40115, STR40115B, STR50103A, STR50115B, STR50213, STR50213M, STR51213, STR-D4512
STR442	STR440, STR441, STR446, 55A245-2
STR446	STR440, STR441, STR440, 56A245-2
STR450A	STR451, STR452, STR454, STR455, STR456, STR514, HKD9502, IX0205CE
STR451	STR450A, STR452, STR455, STR456, STR514, HKD9502, IX0205CE
STR452	STR450A, STR451, STR454, STR455, STR456, STR514, HKD9502, IX0205CE
STR454	STR5312, HG5412, STR5313, STR5314, STR5395, STR5418
STR455	STR450A, STR451, STR452, STR455, STR456, STR514, HKD9502, IX0205CE
STR456	STR450A, STR451, STR452, STR455, STR514, HKD9502, IX0205CE
STR50103	STR40115, STR4412, STR50103A, STR50115B, HKD40115
STR50103A	STR40115, STR4412, STR50103, STR50115B, HKD40115
STR50115B	STR40115, STR4412, STR50103, STR50103A, HKD40115
STR50213	STR-D4412, STR40115, STR40115B, STR4412, STR50103A, STR50115B, STR50213M, STR51213, STR-D4512
STR50213M	STR-D4412, STR40115, STR40115B, STR4412, STR50103A, STR50115B, STR50213, STR40115B, STR4412
STR514	STR450A, STR451, STR452, STR455, STR456
STR5312	HG5412, STR454, STR5313, STR5314, STR5395, STR5418
STR5313	STR45312, HG5412, STR454, STR5314, STR5395, STR5418
STR5314	STR5395, STR5412, STR5418, HG5312, HG5313, HKD5412, KWY5412
STR5395	STR5314, STR5412, STR5418, HG5312, HG5313, HKD5412, HWY5412
STR54041	STR58041, STR59041, HWY54041, HKD54041
STR5412	STR5314, STR5395, STR5418, HG5312, HG5313, HKD5412, HWY5412
STR5418	STR5314, STR5395, STR5412, HG5312, HG5313, HKD5412, HWY5412
STR-S6709	STR-S6707, STR-S6708, STR-S6708A
STR51213	STR50213, STR50213M, STR51213M
STR51213M	STR50213, STR50213M, STR51213
STR58041	STR54041, STR59041, KWY54041, HKD54041
STR6020	STR6020S, HKD6020
STR6020S	STR6020, HKD6020
STR6308	STR-S6308
STR-6658	STR-6658B, STR-F6654LF53, STR-6658B
STR-6658B	STR-F6656, STR-F6654LF53, STR6658
STR81145A	STR81145C, STR83145LF55
STR8145C	STR81145A, STR83145LF55
STR83145LF	STR81145A, STR81145C
STR-D1706	STR-D1806, STR-D1706S, STR-D1806FA
STR-D1706S	STR-D1806, STR-D1706, STR-D1806FA
STR-D1806	STR-D1706, STR-D1706S, STR-D1806FA
STR-D1806FA	STR-D1806, STE-D1706, STR-D1706S
STR-D4412	STR40115, STR40115B, STR4412, STR50103A, STR50115B, STR50213, STR50213M, STR51213, STR-D4512
STR-D6008X	STR-D6009E, STR-D6009D
STR-D6009D	STR-D6008X, STR-D6009E
STR-D6009E	STR-D6008X, STR-D6009D
STR-D6601	STR-D6601M
STR-D6601M	STR-D6601
STR-F6626	STR-F6653
STR-F6653	STR-F6626
STR-F6654LF53	STR-F6656, STR-6658, STR-6658B
STR-F6656	STR-F6654LF53, STR-6658, STR-6658B
STR-G5653	STR-G8658
STR-G8658	STR-G5653
STR-S5471	STR-S5941
STR-S5941	STR-S5471
STR-S6707	STR-S6708, STR-S6708A, STR-S6709
STR-S6708	STR-D6709, STR-S6709AN, STR-S6709A
STR-S6708A	STR-S6707, STR-S6708, STR-S6709
STR-S6709	STR-S6708, STR-S6709AN, STR-S6709A
STR-S6709A	STR-S6709, STR-S6708, STR-S6709AN
STR-S6709AN	STR-S6708, STR-S6709, STR-S6709A

　　（二）常用集成电路的检测

　　1.微处理器集成电路的检测微处理器集成电路的关键测试引脚是VDD电源端、RESET复位端、XIN晶振信号输入端、XOUT晶振信号输出端及其他各线输入、输出端。在电路测量这些关键脚对地的电阻值和电压值，看是否与正常值（可从产品电路图或有关维修资料中查出）相同。不同型号微处理器的RESET复位电压也不相同，有的是低电平复位，即在开机瞬间为低电平，复位后维持高电平；有的是高电平复位，即在开关瞬间为高电平，复位后维持低电平。

　　2.开关电源集成电路的检测开关电源集成电路的关键脚电压是电源端（VCC）、激励脉冲输出端、电压检测输入端、电流检测输入端。测量各引脚对地的电压值和电阻值，若与正常值相差较大，在其外围元器件正常的情况下，可以确定是该集成电路已损坏。内置大功率开关管的厚膜集成电路，还可通过测量开关管C、B、E极之间的正、反向电阻值，来判断开关管是否正常。

　　3.音频功放集成电路的检测检查音频功放集成电路时，应先检测其电源端（正电源端和负电源端）、音频输入端、音频输出端及反馈端对地的电压值和电阻值。若测得各引脚的数据值与正常值相差较大，其外围元件与正常，则是该集成电路内部损坏。对引起无声故障的音频功放集成电路，测量其电源电压正常时，可用信号干扰法来检查。测量时，万用表应置于R&TImes;1档，将红表笔接地，用黑表笔点触音频输入端，正常时扬声器中应有较强的“喀喀”声。

　　4.运算放大器集成电路的检测用万用表直流电压档，测量运算放大器输出端与负电源端之间的电压值（在静态时电压值较高）。用手持金属镊子依次点触运算放大器的两个输入端（加入干扰信号），若万用表表针有较大幅度的摆动，则说明该运算放大器完好；若万用表表针不动，则说明运算放大器已损坏。

　　5.时基集成电路的检测时基集成电路内含数字电路和模拟电路，用万用表很难直接测出其好坏。可以用测试电路来检测时基集成电路的好坏。测试电路由阻容元件、发光二极管LED、6V直流电源、电源开关S和8脚IC插座组成。将时基集成电路（例如NE555）插信IC插座后，按下电源开关S，若被测时基集成电路正常，则发光二极管LED将闪烁发光；若LED不亮或一直亮，则说明被测时基集成电路性能不良。