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> 松下）南宁松下电视机服务电话《售后服务中心》
松下）南宁松下电视机服务电话《售后服务中心》
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松下）南宁松下电视机服务电话《售后服务中心》南宁松下电视机维修服务电话：（，）服务目标：服务0缺陷，客户100%满意，只要您拨打公司24小时报修热线，本公司将第一时间竭诚为您服务!相信你的选择没有有错!好生活从松下电视机开始。松下电视机服务工作人员上门检测核价，如果松下客户觉得我们的报价不
松下）南宁松下电视机服务电话《售后服务中心》南宁松下电视机维修服务电话：（，）服务目标：服务0缺陷，客户100%满意，只要您拨打公司24小时报修热线，本公司将第一时间竭诚为您服务!相信你的选择没有有错!好生活从松下电视机开始。&松下电视机服务工作人员上门检测核价，如果松下客户觉得我们的报价不能接受，客户可以选择不修，－－－－不让客户多花冤枉钱日前，记者了解到，松下集多年技术创新之大成，向市场推出了一款内外兼修的顶级豪&&松下电视机&松下&，奢华钻石镶嵌、超智能数码影像系统、森林水氧加湿、一级能效&&一系列颇&见创新心思的设计，堪称技术和艺术的完美融合，将消费者引向&精品&消费时代，树立了市场的潮&流标杆。南宁松下电视机售后服务中心成立于2000年，自成立以来紧紧围绕"专业化"的服务标准，&以"我用心，你放心"的服务精神促进企业发展壮大，以"诚信务实"的服务理念赢取市场和回报社会，&使企业在竞争异常激烈的家电市场中连续多年稳健发展，取得了良好的经济效益和社会效益宗旨：经&验丰富，质量保证，安全第一，客户，舒心，安心，放心尊敬的用户，不论您有何种需求，只要您拨&打我们的24小时统一服务热线：，剩下的事情由我们来做?我们的客户服务代表将会给您提&供专业的咨询和解答！2。我们会就近安排维修网点的优秀的服务工程师按您约定的时间准时上门！&3。工程师提供优质服务的同时，将会向您详细讲解产品工作原理及操作过程！4。服务最后工程师会&主动向您讲解产品使用常识，指导您的使用！5。您的服务信息将同步反馈至松下电视机客户服务&中心，我们会安排客服人员定期回访！南宁松下电视机维修标准：放心维修：实行先报价后维修的准&则.快速维修：上门维修，当场检测，当场核价，当场修复。贴心服务：提供电视机的使用，保养，&操作等问题咨询。『金牌服务温馨到家』放心维修全市投诉受理热线（全市）认真接听，客户心声做&到服务零缺陷，满意百分百，认真接听，客户心声。安心维修：严格执行南宁市物价局，行业协会收&费标准，合理收费。特殊故障机：雷击，外力损坏，电源异常，跌落，经他人维修不能修复等，同用&户协商费用。无忧维修：修复的机器提供保用期，原故障部位，原故障配件损坏，一律免收任何费用。南宁松下电视机售后维修电话.&
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松下电视维修实例
松下电视维修实例松下TC-2186型彩色电视机&nbsp屏幕噪点正常,但既然无图像也无伴音&nbsp调谐电压供电电路&nbspBT电压只能在0`2V之间变化,IC1103损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp有伴音而无图像,无光栅&nbsp加速极供电电路&nbspC354漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp光栅正常,无图像,伴音极轻&nbsp复合视频信号处理电路&nbspIC101的(17)脚电压为14.1V,正常为17.6V,X102漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp调&nbsp完电台后,不能预置存储&nbsp频道存储电路&nbspD均开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp有雪花噪点,但无图像,无伴音&nbsp高频调&nbsp电路&nbspBL,BH,BU各端电压均为0V,正常为12V,IC1103损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp光栅正常,选台后VL频段图像和伴音正常,而VH,U频段收不到&nbsp电视节目&nbsp微处理控制电路&nbspIC1102的(33)脚电压在VH频段为1.8V,正常为0.2V;U频段为1.8V,正常为0.2V,IC1102损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp收台后能调&nbsp出图像,但收看几分钟就跑台,再调&nbsp好后仍出图像,随之故障又重复出现&nbsp高频调谐电压电路&nbspIC1103损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp开机后不定期出现&三无&&nbsp开关电源电路&nbspM50213的(5)脚电压为40V,正常为+110V,M50213损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp无光栅,无&nbsp图像,无伴音,机内有&吱吱&声&nbsp行扫描电路&nbspQ404的Ub无电压,正常为0.1V;IC601的(42)脚电压为0.1V,正常为8.5V,T501短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp无光栅,无图像,无伴音,机内有&吱吱&声&nbsp场输出电路&nbsp7D412击穿短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2186型彩色电视机&nbsp无光栅,无图像,无伴音,机内有:吱吱&声&nbsp开关电源电路&nbspIC801的(2),(3)脚电压均为13V,C806&nbsp损坏&nbsp松下TC-2187型彩色电视机&nbsp开机屏幕亮,有噪&nbsp声有雪花点,不受控制&nbsp5V供电电路&nbspR822(330KΩ)断路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2187型彩色电视机&nbsp图像正常,但遥控器&准备&键无法使整机处于等待状态&nbsp开关电源的稳压调控电路&nbspQ803的Ub&nbsp无电压,正常为4V,D826失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2187型彩色电视机&nbsp图像画面变亮时行幅缩小&nbsp行输出电路&nbsp行电流随画面的亮暗在450~700mA间变化,Q801特性不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2187型彩色电视机&nbsp开机不久便烧113V整流管D820&nbsp自动稳&nbsp压控制电路&nbspIC801的(2)脚电压为2.8V,正常为12.9V,IC801损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2187型彩色电视机&nbsp无光栅,无伴音,待命指示灯长亮&nbsp开关电源电路&nbspQ802的Ub为0.65V,R814(1Ω)开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有光栅,但手控遥控失效,无像,无声&nbsp待命电源电路&nbspIC803(3)脚电压为0V,正常为5V,R882开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp接收PAL制式节目无彩色,但黑白图像与伴音0正常&nbspPAL识别电路&nbspIC601(22)脚电压为6V,正常为10V,,IC601(TAB653N)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅,伴音正常,但无像&nbsp3.85/4.43MHz转换电路&nbspIC3003(9)脚无脉冲波形,IC3003(TUSTC-4066BP)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp每次开机必须重新调揩&nbsp-30V供电电路&nbspIC1102(2)脚电压为0V,&正常为-30V,Q118(2SA1309A)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp不能进自动调谐选台&nbsp自动频率控制电路&nbspIC1101(10)脚电压在检索时由低变高,Q102(2SC3311A)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp*作遥控准备键无法使本机处于等待状态&nbsp电源待命&nbsp电路&nbspQ802Ub为0.7V,Uc为0V,D826(TLP621GRL2)光电耦合器损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp选台后无彩色,需调整系统开关I方能出彩色图像&nbsp彩色系统转换&nbspIC),(24)脚电压分别为0.1V,正常分别为10V,0.7V,8.8V,IC1105(TVSTC-4066BP)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕仅为水平一条亮线&nbsp待命电路&nbspS85(5)脚电压为0V,正常为25V,Q802(2BC3311A)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp声音,图像质量及节目号码不能记忆&nbsp-30V供电电路&nbspQ1117Uc为0V,正常为-36V,RΩ)开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp全自动选&nbsp台时可选台,但不能存储&nbsp存储器&nbspIC102(5),(6)脚电压一直为6V,IC102(MN4066B)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp全自动或半自动选&nbsp台时,不能存储电台&nbsp存储器控制电路&nbspIC1101(38)脚电压为3.5V,正常为0V,IC1101(BM5069)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp图像只有色度信号,而无亮度信号&nbsp亮度信号处理电路&nbspIC3004(5)脚电压为0V,正常为7.2V,IC3004(CS20125)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp伴音正常,图像仅有色度信号而无亮度信号&nbsp亮度信号处理电路&nbspIC3003(8),(9),(10)脚电压均为10V,正常为1.9V,IC3003(TVSTC-4066BP)&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp图像对比度不足,且不能调节&nbsp6bitPWM控制脉冲放电路&nbspQ1122Uc为0V,正常为4.2V,Q85)&nbsp损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp图像呈枕&nbsp形失真&nbsp枕形校正电路&nbspQ701的Uc有15V上下波动,Q701(2SD1266A)性能不稳&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp遥控*作失灵&nbsp微处理器控制电路&nbspIC1101(5)脚有信号波形,IC1101(BM5069)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp工作一段时间后跑&nbsp台,关机后再开机需重新进行调台&nbsp记忆控制电路&nbspIC1102(2)脚电压为-36V,正常为-30V,Q118损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有光有声,但无像,所有*&nbsp作键均失灵&nbsp+5V供电电路&nbspC888两端电压为0V,正常为12V,R882开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅和伴音这,但无像,无字符显示&nbsp+5V供电路&nbspC888两端电压为5.6V,正常为12V,R882开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机有光栅,数秒后自动关机,整机三无,机内有吱声&nbsp稳压控制取样电路&nbsp+B电压为86V,正常为113V,R841由1Ω变为1.8&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp对比度调节失灵&nbsp对比度控制接口电路&nbspQ1122Uc始终为1.8V,Q11A0损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅正常,但无像,无伴音&nbsp调谐电压供给电路&nbspBT电压在3.5V处不停摆动,CR1101内的680P电容击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机无像,伴音失真,满屏网纹,3分钟后声图正常&nbsp中放通道&nbsp电路&nbspIC101(17),(18),(19)脚电压均比正常高1.5V,IC101AN5138NK损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp能自动搜索节目,但不能存储&nbsp存储器控制电路&nbspIC102的(5),(6)脚电压为1.6V,正常为12V,Q1127(UN4212)击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机无光栅,无伴音,待命灯亮后即熄灭&nbsp开关电源电路&nbsp+B电压为0V,Q801(2SD1391RL)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有图像而无伴音&nbsp第二伴音中频选择电路&nbspIC2501无音频信号波形,ICP)损坏&nbsp&nbsp&nbsp&BR&松下TC-2188型彩色电视机&nbsp刚开机声图正常,工作约一小时后有声无图,且光栅暗淡&nbspTV/AN转换电路&nbspIC2501(3)脚无视频全电视信号波形,IC2505(33υF/16V)热&nbsp稳定性差&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机工作正常,但工作约40分钟后亮度变暗,并不能存台&nbsp复合同步信号放大电路&nbspIC601(61)(63)脚电压为为9V,正常为11.8V,IC802(AN7812)热稳定性差&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp黑白图像正常,但无彩色&nbsp彩色制式选择电路&nbspIC601的(10)(11),(21)脚电压为11.5V,IC1105(TVSTC44066B9)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp图像无色彩&nbsp中放电路&nbspIC201(12)脚电压为0V,IC201(MN40528)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp手动开机无光无,\待命灯亮,但遥\控启动工作正常&nbsp辅助电源启动电路&nbspIC1101(32)脚为低电压,Q1106虚焊&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机正常,约5秒后整机三无,待命灯不亮&nbspI辅助电源启动电路&nbspQ840的T1与T2之间电阻为0Ω,F801熔断Q806击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp在收看过程中,受雷击后三无&nbsp开关电源电路&nbsp+B电压为0V,Q806,D826,IC801击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机时光栅正常,数秒后收缩,直至消失为三无&nbsp保护电路&nbsp故障时,+B电压为2.4V,Q841特性不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音,待命灯长亮&nbsp保护电路&nbsp+B输出为0V,R812烧毁,Q805击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音,待命灯长亮&nbspI微处理器控制电路&nbspIC1101(28)脚有正常波形(29)脚无波形,IC1101(BM5069)&nbsp损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,伴音失控,有尖叫声&nbsp行输出电路&nbspIC601(39)脚电压刚开始为4.6V,瞬间为0V,T502(TLH6476X)初级短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp整&nbsp机三无,机内有吱叫声&nbsp行逆程电路&nbspD520阴电压低于7.5V,D701内部漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp遥控失灵&nbsp遥控收电路&nbspIC1102(9)脚无脉冲信号,红外接线头损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机伴音正常,几秒后声音消失,但图像&nbsp正常&nbspTV/AV转&nbsp换电路&nbspIC25022(2)脚电压为11V,IC2502(TVSM51320)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音,机内有&吱&声&nbsp行输出电路&nbspD520阴极电压低于7.5V,T501损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有时自动关机,有时不能正常收看&nbsp开关振荡电路&nbspD818/D8224串联后两&nbsp端电压为0.7,正常为0.85V,Q803不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机均只能看1小时,1小时后光栅变暗并行扭&nbsp稳&nbsp压控制电路&nbspIC801第(2)脚&nbsp电压为11.9V,正常为12.4V,Q841&nbsp热稳定性差&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅暗淡,几乎看见图像&nbsp亮度通道&nbsp电路&nbspIC601第(18)脚电压为0V,C306严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅正常有雪音噪声,但收不到图像信号&nbsp波段转换电路&nbspIC1103(AN50710,(1),(2),(7)脚均无电压输出,AN5071损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有伴音,但无图像&nbsp视放供电电路&nbspQ451,Q352,Q353的Uc为210V,正常为145V,Ub为0.3V,R390(120KΩ断路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp可正常收看,但不能使整机处于待&nbsp机状态&nbsp待机控制电路&nbspQ803的Ub为0V,正常为4V,D826失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp字符溢出屏幕外&nbsp字符控制电路&nbspR1141(5kΩ)接触不良&nbsp&nbsp&nbsp&BR&松下TC-2188型彩色电视机&nbsp待命灯亮,但无光栅,无伴音&nbsp场输出电路&nbspIC451总电流为500mA,正常为190mA,IC451(AN5521)内放大管击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp键控正常,但遥控失效&nbsp遥控接口电路&nbsp插座E1第(1)脚电压为0V,正常为5V,,R1195(47Ω)开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp按下面主电源开关末松开时图声正常,但松开时出现&三无&&nbsp待机控制电路&nbspQ1106的Uc&nbsp为4V,正常正常为0V,Q1106开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕亮度低,低调节亮度时屏上指示有变化,但实际亮度不变化&nbsp亮度通道&nbspIC601第(48)脚电压为0.3V,正常为4.2V,C310(10υF/16V)漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp收看几分钟后,图光变,半音却正常&nbsp视度处理电路&nbspIC601第(48)脚电压为0.8V,正常为4.2V,C310(10υF/16V)严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp只有较暗的彩色图像,但伴音正常&nbspCPU控制电路&nbspIC3003第(8),(9)脚电压为9.4V,正常为1.9V,IC3003(LC4066)不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp只有较暗的彩色图像,但伴音正常&nbsp亮度处理电路&nbspQ308的E极无波形,R319的中心触点接触不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无规律性的遥控失灵&nbspCPU供电电路&nbsp故障时BM5069第(52)脚电压在5V左右波动,L1149接触不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp工作约10分钟后画面扭曲&nbsp稳压控制电路&nbsp+B在故障时为158V,正常为113V,IC801第(2)脚电压为2.5V,正常正常为12.8V,IC801(S1854)不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp保险正常,但开机无任何反应&nbsp过流保护电路&nbspQ802的Ub为0.8V,R841(1Ω)开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp搜台时图像一晃而过&nbspAFT开关电路&nbspIC102第(5),(8)脚电压为1.5V,Q)中穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp搜台时图像一晃而过&nbspAFT控制电路&nbspIC1101第(35)脚电压为0V,Q102不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开启电源有启动现象,但整机无光无声,&nbsp场输出电路&nbsp+B在刚开机时为80V,几秒后变为0V,IC451(AN5521)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机后屏幕无光,扬声器无声&nbsp自动保护电路&nbsp+B为0V,正常为121V,IV601第(52)脚电压为1.3V,Q501(2SD1175)击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机后,有时有图像有时无图像,而是进入待机状态&nbspX射线保护电路&nbspIC601(TA8653)第(52)脚为低电平,Q503损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp搜索完整个频道&nbsp后,不仅只有一个台,而且图像不稳定&nbsp存储器电路&nbspIC102和IC1105各脚电压异常,Q1127烧坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp遭雷击后无像,无伴音&nbsp中频前置放大电路&nbspQ101损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp接收TV节目时图像清晰,但无伴音,切换至AV1,AV2视频输入时声图&正常&nbsp音频功放电路&nbspIC2303的(2)脚电压为20V,IC2302损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机声像正常,但伴有&行频&叫声,过一段时间画面逐渐变亮,行幅缩小,图像扭曲&nbsp行扫描电路&nbsp行输出变压器不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp自动搜索节目不能锁定,其图像只能稳定极短的时间&nbspAFT电路&nbspIC1101第(35)脚电压无变化,Q102虚焊&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机一段时间后跳台&nbspVT调谐电压形成电路&nbspQ1102无32V供电,C1105漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp调台结束后无彩色,需调整系统开关I才能出现彩色&nbsp微处理器控制电路&nbspIC1101(BM5069)第(22)脚电压为10V,(23)脚电压为7.4,(24)脚电压为8.8V,正常时均为0.1,IC1105(STC44066BP)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕为水平一条亮线,但待机指示灯随即熄灭&nbsp场扫描供电电路&nbsp,S84第(5)脚电压为0V,正常为113V,Q802损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机后&三无&,但开机瞬间待命指示灯亮随即熄灭&nbsp电源正反馈电路&nbspS84第(1)(2)脚间的电压为0V,正常为113V,Q808接触不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机工作正常,约3分钟后光,图,声消失,机内发出&吱&叫声&nbsp自动保护电路&nbspS85第(1)脚电压为5V,S84第(1)脚&nbsp电压为0V,Q841(2SA1309)不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp在收看中突然&三无&,待命指示灯不&nbsp亮&nbsp主开关电路&nbspQ881的Uc为0V,正常为298V,F801发黑并熔&nbsp断,Q805击穿,R803开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机&三无&,待命指示灯亮但比正常时暗&nbsp待&nbsp机控制电路&nbspIC1101第(32)脚为电压为0.1V,S85第(1)脚电压2.4V,C827漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅正常,但无图无声,待命不发亮&nbsp副电源电路&nbspIC801第(1)脚电压为0V,Q881的Uc为286V,Ub为0V,R882(330kΩ)开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机正常,约5秒后整机&三无&待命灯不亮&nbsp开关电源电路&nbspQ804的T1与T2之间电阻为0Ω,F801熔&nbsp断,Q804击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp在收看过程中,受雷击后&三无&&nbsp开关电\源电路&nbsp+B电压为0V,Q806,D826,IC801击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机时,光栅正常,数秒后收缩直至消失为&三无&&nbsp保护电路&nbsp故障是,+B电压为2.4V,Q841不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音,待命灯长亮&nbsp主开关电源&nbsp+B对地正反向电阻为15Ω,Q801的B极对地电阻为0Ω,IC801不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音,待命灯长亮&nbsp保护电路&nbsp+B输出为0V,R812&nbsp烧毁,Q805击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,伴音失控,有尖叫声&nbsp行输出电路&nbspIC601(39)脚电压刚开始为4.6,瞬间为0V,T502(TLH6476X)初级短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,伴音失控,待命灯长亮&nbsp微处理器控制电路&nbspIC1101(28)脚有正常波形,(29)脚无波形,IC1101(BM5069)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp一开机就烧保险丝&nbsp过压保护电路&nbspQ804击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp机内发出&吱吱&声,整机&三无&&nbsp行逆程电路&nbspD520阴极电压低于7.5V,D701内部严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp机内发出&吱吱&声,整机&三无&&nbsp稳压控制电路&nbspIC601第(52)脚电压大于1.3V,D826损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音&nbsp行输出电路&nbspIC601(52)脚电压为2.1V,正常小于1.2V,Q501(2SD1175)c-e&nbsp结击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅&nbsp,无伴音&nbsp微处理控制电路&nbspIC1101(52)脚电压为2V,正常为5V,IC1101(BM5069)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音&nbsp过压保护电路&nbspQ841的Ub为1.1V,正常为24V;U&nbspe为1.75V,正常为24V,R841开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音&nbsp开关电源电路&nbsp1601(52)脚电压为0V,F801熔断,Q804损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音&nbsp场输出电路&nbsp25V电源的电流大于350mA,正常为200mA,IC451(AN5521)击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音&nbsp电源稳压控制电路&nbsp+B电压为140V,正常为113V,D826(TLP621GR-LF2)损&nbsp坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp收U&nbsp频道&nbsp节目时,过一段时间彩色消失,微调一下又正常但偶尔还出现黑白图像&nbspAFT电路&nbspQ801的Uc为5V,C54(0.47υF/50V)失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅正常,有雪花噪声,但收不到电视节目&nbsp频道&nbsp切换电路&nbspIC1103第(1)(2)(7)脚无输出,IC1103(AN5071)损坏&nbsp&nbsp松下TC-2188型彩色电视机&nbsp光栅场幅不足&nbsp场频调节电路;&nbspR415由2.2Ω变至0.2Ω&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕仅为水平一条亮线&nbsp场扫描输出电路&nbspIC401(2)脚电压为2.7V,正常为15V,IC401(AN5521损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕仅为水平一条亮线&nbsp行扫描振荡电路&nbspIC601第(31)脚无脉冲波形,IC601(AN5601K)不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕仅为水平一条亮线&nbsp场扫描输出电路&nbspIC401(4)脚电压为6.2V,正常为3.1V,C418与偏&nbsp转线圈的铜箔断裂&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅有不规则的较亮横白线在闪烁&nbsp亮度&nbsp通度电路&nbspIC1101(19)脚电压在2.2V~2.6V间波动,LC301漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp收看中因小孩反复关机,整机&三无&&nbsp开关电源启动电路&nbspIC801(3)脚电压290V,其余均为0V,R803开路失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp在收看过程中,突然声光像全无&nbsp开关电源电路&nbspD833(1)~(4)脚电阻为0Ω,C847(100υF/400V)及IC801(STR50213)击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无色彩,黑白图像及伴音正常&nbsp8.8MHz脉冲产生电路&nbspIC601第(5),(7),(11),(13)脚均无色度信号,X601晶振开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp电台调好一下即消失,需重新调台&nbsp调谐电压控制电路&nbspQ1115Vc为7.8~30V,正常为0~30V),Q1115损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp电台调好一下即消失,需重新调台&nbsp电子调谐器&nbspBT电压为稳定的31V,电子调&nbsp谐器不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp按PRESETC键后,图像不清晰&nbspAFC控制电路&nbspIC101第(10)脚电压为6.8,正常为9.5V,C118漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅无蓝色&nbsp解码电路&nbspIC601第(19)脚电压为0.1V,正常这10V,C613(1υF/50V)严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有图像和伴音,但&nbsp亮度调不&nbsp亮&nbsp自动亮度电平限制电路&nbspIC601第(60脚电压为2.1V,正常为10V,R525开&nbsp路失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕无字符显示,但图像与伴音正常&nbsp行脉冲信号传输电路&nbspIC1102第(3)脚无行脉冲波形,Q85)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕无字符&nbsp显示,&nbsp但图像与伴音正常&nbsp场脉冲信号传输电路&nbspQ1102集电极场同步信号,Q85)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅正常,但图像时有时无&nbsp调谐电压供电电路&nbsp故障时IC1102第(25)脚无脉冲宽调制波形&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp收看十分钟左右便&三无&,随即发出&吱吱&声&nbsp稳压电源电路&nbspIC601(42)脚电压为0.6V,正常为9V,IC801(STR50213)热稳定性差&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕有雪花,但接收不到电视节目&nbsp频段开关控制电路&nbspIC1103第(6)脚电压为0V,正常为31V,IC1103(AN5071)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp遥控不能开关机,待命指示灯长亮&nbsp微处理器控制电路&nbspIC1102第(6)脚电压为0V,正常为5V,IC1102(N-15142TEA)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp声图正常,但无字符显示&nbsp场脉冲开关电路&nbspQ1108的三极电压均为12V,Q4A)击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp不能遥控关机&nbsp电源控制电路&nbspQ1105的Uc为0V,正常为4V,Q6C)的c-e&nbsp结击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp遥控关机时,屏幕仅暗一下随后又&nbsp亮起来&nbsp待命信号输出电路&nbspD813阴极电压为0V,D813开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有图你像而无伴音&nbsp伴音功放电路&nbspIC201(1)脚为11V,(16)脚电压为16V,IC201(AN5265)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp伴音嘶哑,但图像正常&nbsp伴音吸收回路&nbspIC101第(17)脚为5.8V,正常为7.2V,X202内部漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕光栅上有雪花点,但无图像,地伴音&nbsp高放AGC电路&nbsp高频头AGC电压为0V,R108(10KΩ)活动臂断路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp光栅正常,但无图像,无伴音,屏幕无雪花点&nbsp中放通道电路&nbspIC101第(5)脚电压为0V,正常为5.1V,C113漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无图像,无伴音,但光栅正常,并有电噪声&nbsp复合视频信号传输电路&nbspIC101第(17)脚无信号波形,T101损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有伴音而无光栅&nbsp显像管加速极&nbsp显像管G2电压仅2.6V,正常为200~800V&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机声&nbsp图正常,工作约2小时声图光消失,但伴音一直正常&nbsp自动保护电路&nbspIC601第(42)脚电压为1.7V,正常为8.6V,R536开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp待命灯亮,整机有时能启动有时不能启动&nbsp行输出电路&nbspIC1102第(6)脚电压为0V,Q501(2SD1541)击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp待命灯亮,整机有时能启动有时不能启动&nbsp微处理控制电路&nbspQ801的Ub为7.1V,Uc为6.5V,I&nbspc为10MA,R536开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp因电源波动,机内冒烟,随即声图消失,待命也不亮&nbsp电源电路&nbsp+B为0V:C847两端电压为0V,正常为295V,F801熔断,C847(100υF/400V)外壳破裂&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机后&三无&,机内有&吱吱&声,待机指示灯控制变化正常&nbsp开关振荡电路&nbspIC801第(2),(3),(4)脚电压分别为:72V,286V,272V,C806(0.15υF)容量降低&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp在收看中突然&三无&,且待机指示灯出为[,亮&nbsp主开关电源电路&nbspIC801第(4)脚电压为0V,IC801内开关管损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机后&三无&,待命指示灯一直发光,按动遥控器待命控制键无效,主机不工作&nbsp待命电源控制电路&nbspS84第(3)脚对地电压为2.6V,正常值为4.5~4.7V,D814正端电压5V,C811漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp遥控*作时有时正常,有失控,,各功能键均是如此&nbsp遥控发射器&nbsp驱动管Q1001不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有时开机正常,有时则无光无声,待命灯长亮&nbsp微处理器的供电电路&nbspIC1102第(39)脚电压为3.8V,正常为5V,D1132&nbsp稳压管漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp开机瞬间有行场幅度均缩小的暗淡光栅,&nbsp随即&三无&&nbsp微处理器的供电电路&nbspIC1102第(3)脚电压为5.1V,IC802(RC7812)内部短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp刚开机光栅极亮,有伴音随之声光全无,机内发出’吱吱&声&nbsp亮度信号处理电路&nbspIC601第(10)脚电压仅为2V,&nbsp正常为5V,D601损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp整&nbsp机&三无&,但有&吱吱&声&nbsp保护电路&nbspQ503的Ub&nbsp为&nbsp0.4V,正常为8.7V,D522稳压管特性不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无图像,无伴音&nbsp遥控开/关机电路&nbspQ810的U&nbspb为5V,Q814开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无图像,无伴音&nbsp开关电源电路&nbspIC801两端电压为0V,正常为220V,R841开路,C847100υF/400V击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无图像,无伴音&nbsp场输出供电电路&nbspQ451的Ub降低,R411(1.2Ω)增值至14Ω&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,图像,无伴音&nbsp行输出电源电路&nbspQ501的Uc为0V,R521(8.2Ω/10W)开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp图像良好,只是伴音极小&nbsp音量控制电路&nbspQ231的Ub为0.7V,Uc为7.3V&nbsp,Q232的B极与线路板之间有氧化&nbsp像&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp机器处于待命状态后,无法进行手动或遥控开机,心须亲掉电源开关后再重新打开电源开关,机器才能正常工作&nbsp微处理供电电路&nbspIC1106的(1)脚输入电压为3.2V左右,正常中待命状态时,应在8~12V之间,Q802损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp机器接收电视信号时一切正常,但无论手动和遥控均无法进入AV状态&nbspAV/TV转换电路&nbspIC3001损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无伴音,光栅闪烁,20秒后光消失,电源有&打坳&声&nbsp自动电压调整电路&nbspIC803的(2)脚电压为120V,IC803损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp黑白图像及伴音正常,无彩色&nbsp制式识别电路&nbspTA8844N的9220,(27)脚电压异常,正常在PAL制均为10V;在NTSC制(22)脚为5V,(27)脚为10V,Q606击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕&nbsp只有一片白光栅,连噪&nbsp声点也没有&nbsp视频处理电路&nbspTA8844N的(55)脚无电压,Q608损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp屏幕亮度过亮,控制失常&nbsp亮度控制电路&nbspIC1102的(39)脚电压在0`~10V变化,R312开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp字符显示&nbsp字符显示电路&nbspIC1102的(32)脚电压为5V,正常为4V,Q1104击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp有光栅,无图像&nbsp微处理视频消除电路&nbspQ608击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp自动关机后又立即自动开启&nbsp微处理控制电路&nbspIC1102的(29)脚电压不停地跳变,正常在工作时为0.1V,暂停为5V,IC1102损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp手动开机&三无&,指示灯微亮并闪烁&nbsp,机内有&唧唧&&nbsp微处理复位信号产生电路&nbspIC1106的(3)脚电压为1.5V,正常为5VIC1104损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp手动开机&三无&,指示灯微亮并闪烁,机内有&唧唧&声&nbsp电源电路&nbspQ803的Ub为1.1V,正常为0.1V,Q803击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光无声,烧保险&nbsp电源电路&nbspF801熔断,IC802Q801击穿&nbsp&nbsp松下TC-2188型彩色电视机&nbsp无光栅,无伴音&nbsp行扫描电路&nbspIC601的(42)脚电压为1V;T501的(5)脚输出电压由23降至13.7V左右C582严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光珊,无伴音&nbsp行扫描电路&nbspIC601的(42)脚电压为1.2V,正常为8.5V,T501局部短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅&nbsp,无伴音,&nbsp过流保护电路&nbsp开机+115V输出电压为40V,左右,随之为0V,D831损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音&nbsp微处理控制电路&nbspIC1102的(29)脚电压为1V,正常为0.1V,IC1102&nbsp损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2188型彩色电视机&nbsp无光栅,无伴音&nbsp电源荡电路&nbsp+115V电压为0V,R815开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp黑白图像正常,无彩&nbsp色度信号处理电路&nbspIC601(40),(41)脚无波形输出,IC601损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp能正常接收电视信号,但利用AV插头地,屏幕无像&nbspTV/AV转换电路&nbspRKΩ)开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp一条水平亮线&nbsp场振荡电路&nbspIC601(64)脚电压为0V,正常为4.8V,R402开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp一条水平亮线&nbsp场扫描电路&nbspIC701(9)脚电压为0V,正常为4.8V,IC701(TA8859P)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp通电,电源指示灯亮,待命指示灯亮,无光栅,无伴音&nbsp微处理控制电路&nbspQ852的Ub为4.6V,正常为0.7V,Q852(2SD1010S)的b-e开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp通电,待命指示灯由红转绿,但整机无光栅&nbsp行扫描电路&nbspT551损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp通电,电源指示灯亮,待命灯由红变绿,随后再变红,无光,无声&nbsp电源电路&nbspC836两端电压为0V,正常为14V,T801损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp通电,电源指示灯亮,可见继电器吸合的动作声,但无光无声&nbsp电源电路&nbspC833两端电压为0V,正常为140V,D803(MA171)短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp通电,电源指示灯亮有,时可正常启动工作,有时处于待命状态&nbsp电源电路&nbspC850两端电压为11V,Q855的c-e结短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp通电,电源指示灯亮,待命指示灯亮,但无光,无声&nbsp电源;电路&nbspC850两端电压仅为3.6V,正常为46V,D835(MA165)短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp开机,待命指示灯不亮,电源指示灯不亮&nbsp电源电路&nbspR869开路;D854击穿;T802初级开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF10R型彩色电视机&nbsp开机电源指示灯不亮,无光栅,无伴音&nbsp电源电路&nbspC850两端电压0V,正常为46V,R869开路&nbsp松下TC-25GF12G彩色电视机&nbsp在自动选台时,&nbsp能接到电台信号,但不能被存储&nbsp中放电路&nbspIC901(9)脚无同步信号输出,IC902损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp在自动选台时,能接到电台信号,但不能被存储&nbsp微处理控制电路&nbspIC1213损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp有光栅,字符显示,只是&nbsp无图像&nbsp中放电路&nbspIC)脚电压均为0V,正常为9V,IC3601损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp开机工作20分钟后,无彩,但黑白图像正常&nbsp色度信号处理电路&nbspIC601(49)脚电压为7.7V,正常为1.7V,C603(0.01υF)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp接收PAL制信号时,黑白图像信号正常,但无彩色&nbsp色度信号处理电路&nbspIC601(47)脚电压为6.7V,正常为8V,C608(0.022υF)漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp接通电源,电源指示灯&nbsp亮,按压电&nbsp源启动键,待命指示灯亮,无光无声&nbsp微处理\控制电路&nbspICAIPA21)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp利用AV端子输入信号,或接收TV信号,屏幕只有彩色信号而无黑白图像信号&nbsp亮度信号处理电路&nbspIC3001(19)脚无波形,Q3020击穿&nbsp&nbsp&nbsp&BR&松下TC-25GF12G彩色电视机&nbsp屏幕光栅亮度不足,能正常接收到图像&nbsp显像管&nbsp显像管损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp接收TV信号时,有图,无伴音,但用外&nbsp部AV端子输入信号时,伴音,图像均正常&nbsp音频信号检波电路&nbspIC101(28)脚无信号输出,IC101损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp无伴音,图像正常&nbsp音频信号处理电路&nbspIC2301(9)脚电压为0V,正常为30V,R647(0.22Ω/2W)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp一条水平亮线&nbsp场振荡电路&nbspIC601(64)脚电压为1.8V,正常为4.8V,&nbspC402漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp一条水平亮线&nbsp场输出电路&nbspKC452的(6)脚电压为0V,正常为30.7,R570烧断;IC452损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp通电,电源指示灯亮,待命灯由红转绿再转红,无光栅&nbsp行振荡电路&nbspIC601(6)脚电压为0V,正常为2.4V,IC601损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp通电,电源指示灯亮,待命灯由红转绿再转红,无光栅&nbsp行输出电路&nbsp+B输出电压为68V左右,C563击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp通电,电源指示灯&nbsp亮,待命灯由红转绿再转红,无光栅&nbsp行振荡电路&nbspIC601(5)脚电压为0V,正常为12V,D3与A3接触不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp通电,电源指示灯亮,待命灯由红变绿,随后又由绿变红&nbsp开关电&nbsp源稳压电路&nbspIC802(SE139NLF4)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp通电,电源指示灯亮,按压电源开关键,可听见继电器吸合声,随&nbsp之断开,待命灯亮&nbsp电源电路&nbspQ801(TSC930-4)击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp通电,电源指示灯亮,有时可正常启动要作,有时处于待命状态&nbsp开关电源电路&nbspC850两端电压为17.5V,正常为46V,Q850损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp通电,电源指示灯亮,待命灯由红变绿,再变红,无光,无声&nbsp行扫描电路&nbspQ552(2SD2454BMAT)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-25GF12G彩色电视机&nbsp通电,电源指示灯&nbsp亮,待命灯由红变绿,再变红,无光无声&nbsp开关电路&nbspC836两端的电压为3.7V,正常为14V,L832&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp刚开机正常,约3分钟突然三无&nbsp电源电路&nbspC824(100υF/16V)漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp开机瞬间指示灯亮,约2秒即灭,整&nbsp机三无&nbsp行输出电路&nbsp+B电压在开机瞬间由30V降至0V,T501高压包击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp整机三无,通电后指示灯闪&nbsp一下后马上熄&nbsp灭&nbsp行输出电路&nbspT501行输出变压器初级电阻为0Ω,T501损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp整机三无,通电后指示灯闪亮一下后马上熄灭&nbsp保护\电路&nbsp故障时C815两端电压为0V,正常为11V5,D825击穿;D811内发光管烧断&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp整机三无,机内有吱吱声&nbsp稳压调控电路&nbspD836的c-e结电反向电阻为300Ω,正常为10KΩ,D836(光电耦合器)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp刚开机瞬间有声无光,随&nbsp三无&nbsp过压保护电路&nbsp刚开机+B电压为115V,随即为40V,\数秒后降为0V,D831(MA4100H)稳压管开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp无光栅,无伴音,待命灯不&nbsp电源控制电路&nbsp+B电压为30V,正常为115V,IC1102(MN15142TEFA)不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp无光栅,无伴音,待命灯不亮&nbsp开关电源振荡电路&nbsp+B输出电压为0V,正常为115V,R815(1Ω)开&nbsp路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2588型彩色电视机&nbsp刚开机工作正常,10分钟后三无&nbsp电源电路&nbsp故障时+B电压为16V,C824(100υF/16V)开路&nbsp松下TC-2185彩色电视机&nbsp有时无光栅,无伴音,且遥控不能开关,但有时又正常&nbsp微处理控制电路&nbspL1107虚焊&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp开机后待命指示灯由闪烁变为常亮,机器无光无声&nbsp电源电路&nbspIC801的(2)脚无电压,R803断路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp不能遥控关机&nbsp待&nbsp机电源电路&nbspD813负极无电压,D813断路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp不能遥控关机&nbsp待机电源电路&nbspQ810的Ue由10V降至8.7V,Q810击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp开机一段时间后,图像缩小而后又恢复正常,并按此规律来回变化&nbsp电源电路&nbsp+B(113V)输出电压降为8.7V,Q811热&nbsp稳定性不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp光栅有不规则的较亮横白线在闪烁,严重时图像对比度淡,但伴音正常&nbsp亮度控制电路&nbspIC1101的(19)脚电压在2.3~2.5V间波动,在图像灰暗时,电压下降1.5V左右,L301损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp开机后无光有声,机内有连续不断的行频叫声&nbsp行扫描电路&nbspIC601的(42)脚电压为2.5V,正常为9.4V,T502损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp图像正常,伴音声小且不受控制&nbsp伴音功放电路&nbspIC201的(4)脚电压为1V,正常为7.6V,Q1111击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp按下&饱和度减少&按键&nbsp,图像不能变为黑白,颜色偏紫&nbsp视放电路&nbspQ352的Uc为170V,正常为140V,,Q352不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp有雪花噪&nbsp点,字符显示,全波段均收不到电视信号&nbsp频段切换电路&nbspIC1103的(1),(2),(7)脚无输出电压,IC1103损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp无图像,但满屏有雪花点,无字符显示,各控制功能不&nbsp起作用,但有时开机又一切正常&nbsp微处理供电电路&nbspIC1102的(39)脚电压时高&nbsp时低;高时为4.4V;低时为3.5V;正常为5V,IC1105损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp图像上部有白拉丝&nbsp图像中放电路&nbspIC101内部自击&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp有时无光,无伴音,且空不能开机,但有时又能正常工作&nbsp遥控接收电路&nbspIC1102的(9)脚电压无变化,L1107虚焊&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp收看过程中,电源电压突然升高很多,立即出现&三无&&nbsp电源电路&nbspF801烧断,C847短路;IC801&nbsp损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp在收看过程中反复开/关几次后,呈现&三无;关机再接通电源时,预备开机灯亮,但遥控器和面板上的*作键不起作用&nbsp电源电路&nbsp+110V输出电压为0V,R803开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp无光栅,&nbsp无伴音,机内有’吱吱&声&nbsp电源正反馈电路&nbspIC801损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp无光栅,无伴音,机内有’吱吱&&nbsp复位电路&nbspIC1102的(6)脚在按开机键时,电压不变化,IC1106损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp无光栅,无伴音,机内有&吱吱&声&nbsp12V供电电路&nbspQ814的Ub为0.35V,D851击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp无光栅,无伴音,机内有&吱吱&声&nbsp行扫描电路&nbspIC601的(42)脚电压为1V左右,T501损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2185彩色电视机&nbsp无光栅&nbsp,无伴音,机内有&吱吱&声&nbsp场输出过流保护电路&nbspIC401的(7)脚电压为8.7V,正常为24V左右,IC401损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp刚开机时光栅很暗,伴音正常,随后便无光无声,且机内发出’吱吱&声&nbsp亮道通道&nbsp电路&nbspIC601的(10)脚电压为8.7V(正常为5V),R602开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp开机半小时后自熄&nbsp,几秒&吱吱&声后面板上红灯一直发亮&nbsp过压保护电路&nbspQ834击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp收看时,机内有&吱吱&声&nbsp电源电路&nbsp+135V电压升至为124V左右,R806开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp有图像,无伴音&nbsp伴音音量控制电路&nbspIC201的(4)脚电压为0.3V(正常为4.7V左右),C112严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp有伴音和彩色像,但色彩发生畸变,黑白图你有,有时偏红,有时偏&nbsp蓝,变化不定&nbsp视放矩阵电路&nbspQ351,Q352,Q354的U&nbspc为107左右(正常分别为111V,108V,114V)Q351,Q354性能不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp光栅亮度失控,且满屏回扫线&nbsp显像管电路&nbsp栅极引脚与印刷电路松脱焊&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp开机一切正常,几分钟后光栅逐渐变亮,图像消失,同时伴有斜条纹出现,但伴音正常&nbsp显像管及管座&nbsp管座四周布满灰尘和污垢&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp图像上部有白色拉丝现象&nbsp图像中放通道&nbsp电路&nbspIC101损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp遥控开机时,待命灯暗,一下又即亮,整机&三无&&nbsp开关电源电路&nbspC1801的(3)脚电压为295V,IC801损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp工作20分钟即自动关机,整机&三无&,待&nbsp命灯长亮&nbsp地过压保护电路&nbsp+B(110V)输出电压为4V,Q834击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp有时不能启动&nbsp稳压电路&nbspIC801的(4)脚电压在40V上下波动(正常为110V),IC801性能不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp无光栅,有伴音,待命灯长亮&nbsp待命电路&nbspIV1102的(6)脚无电压(正常为4.4V)R815(56Ω)增值&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp无光栅,有伴音,待命亮但光亮极暗&nbsp复位电路&nbspIC1102损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp刚开机有&吱’叫,几秒后&吱&叫声消失,整机&三无&,待&nbsp命灯亮&nbsp行输出电路&nbsp+B(110V)无输出电压,Q501击穿,C506开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp在收看中光栅突然消失,但伴音正常&nbsp保护电路&nbspQ504的b-e结漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp图像无色彩,伴音正常&nbsp色度信号处理电路&nbspIC601的(8),(9)脚电压为6.2V,正常为11V,C619,C621漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp无光栅,无图像,无伴音,机内有&吱吱&声&nbsp开关电源电路&nbspIC801损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp无光栅,无图像,无伴音,机内有’吱吱&&nbsp声&nbsp行推动电路&nbspIC601的(42)脚电压为9V,T502损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp无光栅,无图像,无伴音,机内有&吱吱&声&nbsp场输出电路&nbspIC601的(42)脚电压为1.6V,&nbspIC401的(4)脚虚焊&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp无光栅,无&nbsp图像,无伴音,机内有&吱吱&声&nbsp行输出电路&nbsp+B(110V)输出电压为40V,D507不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp一通电机内便发出&吱吱&声&nbsp行扫描电路&nbsp+B(110V)输出电压0V,Q501击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp无光栅,无图像,无伴音,待命灯不亮&nbsp开关电源电路&nbspC806两端电阻为0Ω,R841开路,IC801损坏;C806爆裂&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp无光栅,无图像,无伴音待命灯不亮&nbsp待命状态电路&nbspQ814的Ub为0V,正常为0.6V,D813损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp开机无光无志声,待命指示灯长亮&nbsp遥控接收电路&nbspQ810的Ue为7.7V,正常为10V左右,遥控接收头损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp开机无光无声,待命指灯长亮&nbsp待执行电路&nbsp+B(+110V)电压为0VQ811穿透电流增大&nbsp&nbsp&nbsp&BR&&BR&松下TC-2173型彩色电视机&nbsp开机无光无声,待命指示灯长亮&nbsp微动开关控制电路&nbspS801损坏&nbsp松下TC-2172彩色电视机&nbsp正常工作30分钟后,&nbsp图,光均消失,但伴音正常&nbsp行扫描电路&nbspIC601的(42)脚电压由8.6降至1.7V,R536开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp开机瞬间光栅很亮,随即无光无声,但机内有吱吱声&nbsp亮度信号处理电路&nbspIC601的(10)脚电压为1.8V,正常为5V,D601严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp通电后,待命灯一明一暗的闪烁,但无光无声&nbsp电源电路&nbsp+B输出电压仅50V左右,IC801损坏&nbsp&nbsp&nbsp&BR&松下TC-2172彩色电视机&nbsp每次收看10分钟左右即无光无声&nbsp电源电路&nbsp+B输出电压为145V,IC801热稳定性差&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光无声,且待命灯不亮,但扬声\器中发出&嘶&声&nbsp行扫描电路&nbspIC601的(42)脚电压为0.9V,C582失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp通电后,待命灯亮,但不能开机&nbsp电源电路&nbsp110V输出电压为0V;IC801除(3)脚电压正常外,其余均为0V,L807开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp收看中突然无光无声&nbsp电源电路&nbspF841烧断,C847短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光无声,待命灯一闪即灭&nbsp行扫描电路&nbsp+B输出电压为70V左右,C506失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音&nbsp启动电路&nbspE5的(2)脚瞬间4.3V电压Q1105击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音&nbsp电源电路&nbsp+B输出电压为0V;+16V电压为0V,R803(560KΩ)增值&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音,待命灯不亮&nbsp电源电路&nbspF801熔断,STR50213损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音,有&吱吱&声&nbsp电源电路&nbsp+B输出电压仅40VC806容&nbsp量变小&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音,有&吱吱&声&nbsp场输出电路&nbspIC401的(7)脚\电压为9.5V,IC401&nbsp损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音,有&吱吱&声&nbsp场输出电路&nbspR411增值&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音,有&吱吱&声&nbsp行扫描电路&nbsp+B输出电压仅40V,D507漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音,有&吱吱&&nbsp行扫描电路&nbspIC601的(42)脚电压为1V,C511容量变小&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音,有&吱吱&声＆行扫描电路&nbspIC601的(42)脚电压为1V左右&nbspC582失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2172彩色电视机&nbsp无光栅,无伴音,有&吱吱&声&nbsp行扫描电路&nbspIC601的(42)脚电压为1V左右(正常为8.5V左右),T501内部短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2163DR彩色电视机&nbsp正常收看中无规律地瞬间停机,声光全无,但随后光又能自动恢复正常;有时十几分钟停&nbsp机一次,有时一个多小时一次&nbsp微处理控制电路&nbspIC1100的(40)脚电压在1~4V间波动(正常为4.2V),IC1100损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2163DR彩色电视机&nbsp有时开机后无光,声,但&准备状态&灯亮;有时一切均正常,但在收看中突然发生声光消失&nbsp电源控制电路&nbsp113V及16V电压均无电压;Q802的U&nbspc仅0.6V左右,Q1128击穿&nbsp松下TC-2110彩色电视机&nbsp无字符昧,其它工作都正常&nbspI字符显示电路&nbspIC1101的(30)脚电压为0.48V(正常为4.3V),Q1135击穿,D1135开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2110彩色电视机&nbsp按下电源开关出现无光,无声,待机红灯不亮,只有内发出&吱吱&轻响&nbsp电源稳压电路&nbspD击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2110彩色电视机&nbsp自动搜台存台时,在没有节目处,存台的频道号也会连续跳升许多号,且个别频道&nbsp节目伴音失真&nbsp高频调谐电压电路&nbspC115(0.33υF)漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp伴音正常,有彩色图像,但色彩发生畸变;黑白图像有时偏紫,有时偏&nbsp蓝,有时偏红,变化不定&nbsp色解码电路&nbspIC601的(21),(24),(25)脚电压均为3.6V左右(正常为4.3V,4.3V,4.2V),IC601损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp伴间;正常,有彩色图像,但色彩发生畸变;黑白图像有时偏紫,有时偏蓝,有时偏红,变化不定&nbsp视放电路7Q351~Q353的Uc为107V,正常分别为111V,108V,114V左右,Q351,Q353不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp能正常接收VL频段信号,但收不到VH及U频段信号&nbsp微处理控制电路&nbspIC1102内部局部损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp能正常接收VL频段信号,但收不到VH及U频段信号&nbsp频段切换电路&nbspIC1103的(1),(7)脚均无电压,IC1103损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp光栅散焦,开机几分钟后才出现光栅,调聚焦电位器无效&nbsp显像管及管座I&nbsp聚焦电压为800V,正常为4500V左右,聚焦极对地漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp机内有&咝咝&声,图像有严重的拉丝干扰&nbsp显像管及管座&nbsp聚焦引线与管座引脚焊接点脱焊&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp光栅缺&nbsp红色&nbsp视放末级管座&nbspQ351击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp光栅呈全红色&nbsp显像管及管座&nbsp显像管内部栅极和灯丝漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp光栅呈全红色&nbsp视放末级电路&nbspQ351的Uc非180V,R351开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp刚开机时光栅很亮,伴音正常,随后便无光无声,且机内发出’吱&nbsp吱&声&nbsp亮度通道&nbsp电路&nbspIC601的(10)脚电压为10.1V,正常为5V,D601严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp整机有时能正常启动工作,有时启动失败而出现&三无&,且有’吱吱’声;但在正常工作后偶尔也出现&三无’保护状态&nbsp行扫描电路&nbsp在启动失效时IC601的(42)脚电压为0.7V,启动成功时为9.1V,C580失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp开机后整&nbsp机呈&三无&状态,但&待&nbsp机&指示灯一直发光,按遥控器开机无效&nbsp待命电源控制电路&nbspIC1102的(6)脚电压为4.4V;Q814的Ub为0.35V,C870失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp无光栅,无伴音,机内有&吱吱&声&nbsp行扫描电路&nbspIC601的(42)脚电压为1V左右;Q501的Uc为98V,T501局部短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp开机后,整机处于&三无&状态,机内有&吱吱&声,&待机&指示灯闪一下后熄灭&nbsp行扫描电路&nbspIC601的(42)脚电压为0.8V,C511容量降低&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp开机约3分钟后无光栅,有伴音&nbsp电源电路&nbsp瞬间开机,测+B电压高达145V,IC802热稳定性差&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp开机后无光,无图,无伴音且&待机&灯不亮,但喇叭发出&嘶嘶&高频声,&nbsp行输出过流保护电路&nbspIC601的(42)脚电压为0.8V,R411(1.2Ω增至10Ω)&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp开机后无光,无图,无伴音,且&待机&灯不亮,但喇叭发出&嘶嘶&高频声,开关电源有&吱吱&声&nbsp行扫描;电路&nbspIC601的(42)脚电压为0.9V,C582失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-D21型彩色电视机&nbsp无光无声,机内有&吱吱&声&nbsp场输出过流保护电路&nbspIC401的(7)脚电压为9.5V,R411开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp图像正常,无伴音&nbsp伴音功放电路&nbspIC301第(9)脚电压为0V,&nbsp正常为35V,IC)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp有图有声,屏幕不满幅&nbsp水平枕效电路&nbspR765开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp伴音失真,有时像刮大风一样地起伏&nbsp制式转换电路&nbspIC201各脚电压与图标值相差不大,C212(CBB1000JS27)开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp开机后电源指示灯由红变绿,整机无光无声&nbsp行推动电路&nbspIC601第(6)脚电压为2.3V,IC3006第(15)脚电压为0.7V,正常为32V,D510开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp面板上的红色指示灯一亮一灭,机内发出吱吱声&nbsp自动保护电路&nbspD720(EROF15)击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp开机后色指示灯亮,但整机三无&nbsp待机控制电路&nbspQ850的Ue为0V,正常为12V,Q850&nbsp损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp通电后,整机三无&nbsp开关电源电路&nbsp+B电压为0V,Q802损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp通电后,整机三无&nbsp副电源电路&nbspT802初级无电压输出,R809开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp通电后,整机三无&nbsp副电源电路&nbsp,R869开路&nbsp&nbsp&nbsp&BR&松下TC-29V30H型彩色电视机&nbsp通电后,整机三无&nbsp待机控制电路&nbspT802次级整流的25V正常,而12V串联稳压管Q850无输出,Q850损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp行幅度不足&nbsp行幅调节电路&nbspQ710的Uc电压为0V,正常为21V,Q710击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp有彩色,但无黑白图像&nbsp亮度信号处理电路&nbspIC3603(3)脚无9V电压,IC3601损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp黑白图像正常,但无彩色&nbsp色&nbsp度电路&nbspIC3003(4)脚无色度波形Q3038损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp黑白图像正常,但无彩色&nbsp色度电路&nbspIC601(13)脚电压为4.2V,正常为5V,C627(0.01υF)漏电&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H&nbsp&nbsp&nbsp&BR&&BR&型彩色电视机&nbsp场幅不足&nbsp场负反馈电路&nbspR471开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp屏幕无雪点,但利用AV端子输入,图像,伴音均正常&nbsp中放电路7IC101的(8)脚电压为4.8V,IC201损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp能正常接收到图&nbsp,但不能存储&nbsp微处理控制电路&nbspIC1213的(17)脚一直处于低电平0V,IC1213损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机&nbsp接通电源,待命指示灯为&nbsp亮,无光栅,无伴音&nbspAC输入检测及转换电路&nbspF801烧断;Q812损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V30H型彩色电视机使用中突然无像,无伴音,无光栅&nbsp电&nbsp源电路&nbspF801烧断,R808开路;Q801!Q803击穿&nbsp松下TC-AV29CX型彩色电视机&nbsp接收不到VHF-H频段的节目,而VHF-L和UHF频段的接收正常&nbsp频段切换电路&nbspIC1104的(7)脚无电压,AN5071损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-AV29CX型彩色电视机&nbsp通电开机后彩色图像正常,有伴音并且音量大小可调,但约3公分钟后伴音消失&nbsp伴音功放电路&nbspLA4280的供电电压在刚开机为24V,随着时间的延长电压下降为2V,LA4280损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-AV29CX型彩色电视机&nbsp图像无替律性的上下抖动有时行场不同步&nbsp同步分离电路&nbspQ901的Ub在5.6~7.2V摆动,Q901(2SC3311A)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-AV29CX型彩色电视机&nbsp图像正常,伴音忽有忽无&nbsp伴音功放供电电路&nbspS94插件第(1),(2)脚两端电压在8.7~21V变化,Q864的c-e结击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-AV29CX型彩色电视机&nbsp整机无光,无声,但待命灯了亮正常&nbsp电源开/关控制电路&nbspQ841的Ub为4V,Q555的e-c结击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-AV29CX型彩色电视机&nbsp无论怎样调整均收不到VHF-H频&nbsp道的节目&nbsp频段切换电路&nbspIC1104第(7)脚电压为0V,正常为12V,IC1104(AN507)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-AV29CX型彩色电视机&nbsp开机后,待命灯&nbsp亮,连续按遥控器上的&POWER&键,待命灯不熄,凡主机不工作&nbsp待机控制电路&nbspBM5069第(31)脚在按键时有高低电平变化,Q1113的c-e&nbsp结短路&nbsp&nbsp&nbsp&BR&&BR&松下TC-AV29CX型彩色电视机&nbsp在收看过程中突然无光无声&nbsp自动保护电路&nbspC914(0.01υF/1KV)失效&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp开机光栅噪波正常,能自动和手动搜台&nbsp高频调谐电路&nbspTM001的STL端无+30V电压,R558开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp开机电源指示灯由红变绿,无图,无声,无光&nbsp行扫描电路&nbspD10(1)脚至D3(1)脚印刷电路铜条断裂&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp光栅正常,但无图像,无伴音,屏幕呈白板状态&nbsp图像&nbsp中放电路&nbspIC101第(2),(3)脚电压为0.1V,正常为4.7V,IC101(AN5138NK)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp一开机就烧电源保险管&nbsp交流输入自动切换电路&nbspQ805的T2端电压154V,T1端电压为143V,D805击穿&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp待命灯亮,但不能开机&nbsp电源电路&nbsp+B输出电压仅38V左右,D821损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp待命灯亮,但无光无声,机内有吱吱声&nbsp场&nbsp输出电路&nbspIC451损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp在使用中,突然光栅消失,伴音增大失控,机内有尖叫声&nbsp行扫描电路&nbspQ502的Uc,Ub均正常,T502损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp刚开机时光栅正常,随后慢慢收缩直至消失,但可听到有吱吱声&nbsp电源电路&nbspQ814性能良&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp通电后无光栅,无伴音&nbsp稳压电源电路&nbsp+B电压为0V正常为113V;IC801&nbsp第(2)脚电阻仅9Ω,IC801(S1854LBM-5)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-2687CXV彩色电视机&nbsp无光,无伴音,待命灯亮&nbsp行输出保护电路&nbsp+B无输出电压,Q501击穿&nbsp松下TC-29V2H型彩色电视机&nbsp开机,克光无声,按遥控器&POWER&不起作用&nbsp待机状态控制电路&nbspQ555损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp手控盒频繁开关后,出现手控或遥控不能控制&nbsp遥控发射器机内电路&nbsp排线折断&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp左声道伴音由有到无&nbsp伴音通道&nbspIC2202内左声道电路性能变劣&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp图像和声音都正常,没有彩色&nbsp色解码电路&nbspQ3371的Ub为9V左右,正常为7V,Ue为0.8V左右,正常为6V,Q3371损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp有光有声,但无像&nbsp视频信号输入输出换电路&nbspQ3019的Ub为11V左右,Ue为0V,Q3019的b-e开路&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp按电源开关,无伴音,无光栅&nbsp电源电路&nbspQ882的Uc为0V,正常为0.3V,R881(150KΩ)阴值增大&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp遥控正常,但主机键控失效&nbsp键扫描电路&nbspR1227和R1128均10KΩ开路&nbsp&nbsp&nbsp&BR&&BR&机松下TC-29V2H型彩色电视机&nbsp内发出吱吱声,主机不能启动&nbsp开关振荡电路&nbspD812(光电耦合器)第(1),(2)脚电压在开机瞬间有0.7V,D812(TLP621)损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp在收看过程中,火光一闪就无光无声&nbsp电源电路&nbsp7Q801~Q815损坏&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp正常工作约10分钟后变三无状态,机内发出吱吱声&nbsp过流保护电路&nbspR827两端电压为0.254V,Q806的Uc在0.1~7V间摆动,Q806(2SA1018)不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp开机后收看正常,但遥控关机失效&nbsp待&nbsp机控制电路&nbspD1第(5)脚电压为4.2V,Q841的Ub为0.7V,D841不良&nbsp&nbsp&nbsp&BR&&BR&松下TC-29V2H型彩色电视机&nbsp开机三无,待命指示灯不亮&nbsp交流输入自动切换电路&nbspD802特性不良,R809(2.7Ω)开路&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp按遥控POWER键指示灯不灭,整机亦不工作&nbsp待机状态转换控制电路&nbspQ1113击穿&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp收不到VHFH频段内的节目,而VHFT和RHF频段的接收效果良好&nbsp调谐频段切换电路&nbspBH,BU,BL端电压近于0V,IC1104内电路损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp不能遥控进入待机状态,启动定时功能也不能关机&nbsp电源电路&nbspD826开路&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp通电开机后有光栅,有图像,但伴音时有时&nbsp伴音功放供电电路&nbspQ846的e-c&nbsp结音漏电&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp当电源电压低于150V时,整机不能正常工作&nbsp交流输入电压自动控制电路&nbspD803开路&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机图像和伴音正常,约3秒后伴音消失&nbsp电源电路&nbspLA4280的供电电压)24V)在刚开机时正常,随开机时间的延长,电压下降至2V左右,Q811性能变劣&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机即处于等待状态,按空器上&POWER&nbspON&键反应&nbsp电源电路&nbspQ806的b-c&nbsp结开路&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机后待命指示灯亮度比比正常时暗,无光栅,无伴音,遥控启动无反应&nbsp电源电路&nbspQ801的Ub为0V,正常为0.1V,Q803(2SA1309A)击穿&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机后待命指示灯亮,无光栅,无伴音,机内有吱吱声&nbsp电源电路&nbsp+B输出电压为0V,D820短路&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机,电源进线保险丝F801就烧断&nbsp自动切换电路&nbspD807击穿&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机,电源进线保险丝F801就烧断&nbsp自动切换电路&nbspD805损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp屏幕缺少红色&nbsp末级红色矩阵电路&nbspIC602(16)脚无信号输出,IC602损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp选用AV端子输入信号,或接收TV信号,屏幕均只有彩色信号而无黑白图像信号&nbsp亮度信号处理电路&nbspIC3002的(4)脚无波形输出,IC3002损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp利用AV端子输入信号,或接收TV信号,屏幕均只有彩色信号而无黑白图像&nbsp亮度信号处理电路&nbspIC3001的(19)脚无波形,C3004(22υF/16V)损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp有光栅,屏幕无雪花点,利用AV端子输入信号,屏幕有正常的图像&nbsp中放电路&nbspIC2019(20)脚无信号输出,IC201损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp有光栅,屏幕无雪&nbsp点,利用AV端信号,屏幕有正常的图像&nbsp中放电路&nbspIC101的(7)脚电压为0V,正常为1.8V,IC101(AN5179NK)损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp满屏幕的雪花点,不能接收到电台信号&nbsp调谐器&nbsp调谐器(ENV59892G3),损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp满屏幕的雪花点,不能接收到电台信号&nbsp调谐器电路&nbspSTL引脚电压为0V,正常为30V,D均击穿&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp频道号码自动跳跃,所有的按键功能均失效&nbsp矩阵电路&nbspIC1213(2)脚电压在0.7~173V间波动,正常为4.8V,C1215漏电&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp屏幕无字符显示&nbsp字符显示电路&nbspQ402的Uc为2.2V,正常为4.8V,C401漏电&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp无信号时,屏幕显白底信号,能正常接收图像&nbsp蓝底信号产生电路&nbspIC1211损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp屏幕无蓝色背景显示&nbsp微处理控制电路&nbspIC1213(42)脚信号输出,IC1213损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp通电,电源指示灯亮,待命灯亮,无光栅,无伴音&nbsp微处理控制电路&nbspIC1213(54)脚电压为0V,正常为4.8V,IC1212损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp通电,电源指示灯亮,待命灯亮,无光栅,无伴音&nbsp微处理控制电路&nbspIC1213(33)脚电压为0V,正常为4.8V,IC1214(AN78L05)损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp水平一条亮线&nbsp场扫描电路&nbspIC701(8)脚无波形,IC701损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp行幅不足,图像,伴音均正常&nbsp波形校正电路&nbspQ703的Uc为0V,正常为16V,T765(10Ω/2W)开路&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp场幅不足&nbsp场反馈电路&nbspR454,R462损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp能正常接收电视信号,但利用AV插头输入信号时,屏幕无图像&nbspTV/AV转换电路&nbspIC)脚电压为0V,正常为0V,4.8V,IC1213损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp屏幕有光栅,但无雪花点及回扫线,利用AV1输入信号仍无图像&nbspTV/AV转换电路&nbspIC1213(57)脚电压为4.8V,正常为0V,IC1213损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp频道号码自动跳跃,所有的按键功能均失&nbsp效&nbsp矩阵电路&nbspIC1213(2)脚电压在0.7~1.3V间波动,正常为4.8V,C1215漏电&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp屏幕无字符显示&nbsp字符显示电路&nbspQ402的Uc为2.2V,正常为4.8V,C401漏电&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp无信号时屏幕显白底信号,能正常接收图像&nbsp蓝底信号产生电路&nbspIC1211损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp屏幕无蓝色背景显示&nbsp微处理控制电路&nbspIC1213(42)脚无信号输出,IC1213损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp通电,电源指示灯亮,待命灯亮,无光栅,无伴音&nbsp微处理控制电路&nbspIC1213(54)脚电压为0V,正常为4.8V,IC1212损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp通电,电源指示灯亮,待命灯亮,无光栅,无伴音&nbsp微处理控制电路&nbspIC1213(33)脚电压为0V,正常为4.8V,IC1214(AN78L05)损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp水平一条亮线&nbsp场扫描电路&nbspIC701(8)脚无波形,IC701损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp场幅不足&nbsp场反馈电路&nbspR454,R462损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp通电,待命指示灯由红转绿,但无光栅&nbsp行激&nbsp励电路&nbspQ511的Uc为0V,R559(1.2kΩ/2W)开路&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp通电,待命指示灯由红转绿,但无光栅&nbsp行振荡电路&nbspIC601(3)脚电压为4.2V,正常为7.3V,IC601损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机三无,遥控失灵&nbsp副电源电路&nbsp副电源无5V电源电压输出,C885严重漏电&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机三无,遥控失灵&nbsp副电源电路&nbsp副电源无+5V电源电压输出,R889开路&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp开机三无,遥控失灵&nbsp副电源电路&nbsp副电源无+5V电源电压输出,D844击穿&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp无光栅,无像,无伴音&nbsp电源电路&nbsp+113V降至13V,D820击穿&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp无光栅,无像,无伴音&nbsp电&nbsp源电路&nbspQ801的Ub为0V,D826不良&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp无光栅,无像,无伴音&nbsp电源电路&nbsp各组直流输出电压均为0V,D820,Q802击穿;IC801损坏&nbsp&nbsp&nbsp&BR&&BR&松下29GF12G型彩色电视机&nbsp无光栅,无像,无伴音&nbsp电源电路&nbspQ806的Uc&nbspUbUe均为0V,D814击穿
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