5556T)Molex43045-0606Molex44516-0009(PK-44516-004)Molex502584-0270Molex52610-1675Molex35363-0460Molex39-00-0038Molex43045-0607Molex44516-0012Molex502584-0360Molex52610-1771Molex35363-0460Molex39-00-0040Molex43045-0608Molex44516-0013Molex502584-0460Molex52610-1871Molex35363-0560Molex39-00-0040Molex43045-0609Molex44520-0001Molex502584-0470Molex52610-1872Molex35363-0660Molex39-00-0041单粒=39-00-0040卷带Molex43045-0610Molex44520-0004Molex502584-0670Molex52610-1890Molex35363-0760Molex39-00-0046Molex43045-0611Molex44520-0006Molex502584-0860Molex52610-2071Molex35363-0860Molex39-00-0046Molex43045-0612Molex44560-0001Molex502584-0870Molex52610-2072Molex35363-0960Molex39-00-0047单粒=卷带Molex43045-0613Molex44560-0002Molex502584-1060Molex52610-2075Molex35363-1060Molex39-00-0048Molex43045-0614Molex44560-0004Molex502584-1070Molex52610-2271Molex35363-1160Molex39-00-0049单粒=卷带39-00-0048Molex43045-0615Molex44560-0012Molex502584-1270Molex52610-2471Molex35363-1260Molex39-00-0059Molex43045-0616Molex4。接通电源后,振荡器产生的音频信号电流通过电磁线圈,使电磁线圈产生磁场。静安区生产AD16系列蜂鸣器
35183-0217Molex38760-0304Molex43030-0001Molex44300-1200Molex502380-0300Molex52437-3071Molex35184-0200Molex38760-0308Molex43030-0001Molex44300-1400Molex502380-0400Molex52437-3072Molex35184-0300Molex38760-0312Molex43030-0001Molex44300-1600Molex502380-0500Molex52465-1071Molex35184-0400Molex38760-0404Molex43030-0002Molex44300-1800Molex502380-0600Molex52465-1671Molex35184-0590Molex38760-1103Molex43030-0002Molex44300-2000Molex502380-0700(配套502382-0770)Molex52465-1871Molex35184-0600Molex38769-0022Molex43030-0003卷带=43030-0009Molex44300-2200Molex502380-0800Molex52465-1871Molex35184-0700Molex38769-0207Molex43030-0003Molex44300-2400Molex502380-0900Molex52465-2071Molex35184-0800Molex38769-0220Molex43030-0003Molex44372-0002Molex502380-1000Molex52465-2471Molex35184-0900Molex38770-0102Molex43030-0004Molex44428-0401Molex502380-1100Molex52465-2671Molex35184-1000Molex38770-0103Molex43030-0004Molex44428-0402Molex502380-1200Molex52465-2871Molex35184-1100Molex38770-0104Molex43030-0005Molex44428-0601M。静安区生产AD16系列蜂鸣器有源蜂鸣器和无源蜂鸣器的根本区别是产品对输入信号的要求不一样。
0211Molex35151-0410Molex38740-4608Molex42878-8408Molex39532-1005Molex501951-2410Molex52266-0311Molex35151-0410Molex38740-5410Molex42878-8410Molex39532-1006Molex501951-3000Molex52266-0417Molex35151-0410Molex38740-6102Molex42878-8456Molex39532-1008Molex501951-4000Molex52271-0469Molex35151-0414Molex38740-6103Molex42878-8458Molex39532-1009Molex501951-4010Molex52271-0479Molex35151-0419Molex38740-6104Molex42878-8506Molex39532-1010Molex501951-4500Molex52271-0569Molex35151-0610Molex38740-6308Molex43009-0084Molex39532-1012Molex501951-4510Molex52271-0579Molex35151-0610Molex38740-6309Molex43020-0200Molex39-53-2104Molex501951-5000Molex52271-0679Molex35151-0619Molex38740-6314Molex43020-0201Molex39-53-2105Molex501951-5010Molex52271-0769Molex35153-0500Molex38740-7303Molex43020-0400Molex39-53-2114Molex501951-6000Molex52271-0779Molex35155-0200Molex38740-7304Molex43020-0401Molex39-53-2115Molex501951-6010Molex52271-0869Molex35155-0200Molex38741-3304Molex43020-0600。
蜂鸣器原主板的故障主要是与Qss和Q54的②、③脚间相连的元件或电路击穿短路或漏电造成。将接于原主板上的电源、内存条和CPU移接到新主板上,通电试机,电源风扇和CPU风扇旋转,蜂鸣器发出清脆的自检声,说明CPU完好。断电测CPU周围的C609~C612、C615~C617的正反向电阻仍然都是5Ω。接好光驱和硬盘的数据线,通电试机,电脑在启动的过程中出现蓝屏,用金海硕大容量硬盘检测修复工具检测硬盘时,弹出“没有发现硬盘”。将硬盘移接到正常工作的惠普电脑上,通电试机,电脑正常启动,硬盘中的所有软件均能快捷准确地执行操作者的指令,将惠普电脑上的好硬盘移接到新换的DELL电脑主板上,通电试机,依然蓝屏,主板是新的,硬盘是好的,只能说明硬盘接口电路或BIOS设置有问题。互换硬盘和光驱接口,能快捷准确地从光盘中读取数据。说明硬盘接口电路完好,只能在BIOS的有关硬盘设置项中寻找解决问题的突破口。接通电源后1.5~15V直流工作电压多谐振荡器起振输出1.5~2.5kHZ的音频信号,阻抗匹配器推动压电蜂鸣片发声。
5970-4105Molex50-57-9010Molex52893-2090Molex35978-0510Molex39-01-2240Molex43045-2215Molex45970-4115Molex50-57-9011Molex52893-2095Molex35978-0520Molex39-01-2241Molex43045-2218Molex45970-4305Molex50-57-9012Molex52893-2290Molex35978-0610Molex39-01-2245Molex43045-2219Molex45970-4315Molex50-57-9013Molex52893-2295Molex35978-0620Molex39-01-2245Molex43045-2400Molex45970-4385Molex50-57-9014Molex52893-2495Molex35978-0710Molex39-01-2246Molex43045-2401Molex45970-5115Molex50-57-9015Molex52893-2496Molex35978-0720Molex39-01-3022Molex43045-2402Molex45970-5715Molex50-57-9016(70066-0015)Molex52893-2695Molex35978-0810Molex39-01-3023Molex43045-2406Molex45971-0161Molex50-57-9017Molex52893-2890Molex35978-0820Molex39-01-3023Molex43045-2409Molex45971-0361Molex50-57-9018Molex52893-2895Molex35978-0910Molex39-01-3025Molex43045-2411Molex45971-2115Molex50-57-9020Molex52893-3090Molex35978-0920Molex39-01-3028Molex43045-2412Molex45971-2515Molex50-57-9023Molex52893-3095Molex35978-1010Molex39-01-3028Molex43045-2413。按键按下、开始工作、工作结束或是故障等等。这里对单片机在蜂鸣器驱动上的应用作一下描述。静安区生产AD16系列蜂鸣器
压电蜂鸣片由锆钛酸铅或铌镁酸铅压电陶瓷材料制成。静安区生产AD16系列蜂鸣器
本实用新型涉及一种压电蜂鸣器,尤其涉及一种防水的蜂鸣器。背景技术:压电蜂鸣器是用于家用电器的一种发声报警装置,通常由固定在蜂鸣盒中的蜂鸣片、与该电连接的两个电极构成。目前,由于蜂鸣片的表面没有设置保护层,容易进水导致内部压电结构不稳定,致使发声质量下降。技术实现要素:为了克服现有技术中存在的缺陷,本实用新型提出一种防水的蜂鸣器。一种防水的蜂鸣器,所述蜂鸣器包括蜂鸣片和蜂鸣盒,所述蜂鸣片由金属板和压电陶瓷片构成,所述蜂鸣片设置于蜂鸣盒中,所述蜂鸣盒两侧引出蜂鸣片的电极;所述蜂鸣片外部包裹一层衬底,所述衬底和蜂鸣盒之间填充防水材料;所述蜂鸣盒上设有排水孔,与防水材料配合使蜂鸣盒内保持干燥。进一步地,所述衬底采用聚氨酯材料。进一步地,所述衬底里面具有空芯的结构。本实用新型的有益效果为:通过防水材料和排水孔的设置保证了蜂鸣盒内部的干燥和及时排水。所述衬底是聚氨酯材料制成的,具有耐老化、具有弹性延展性包裹性好的优点。同时,衬底采用空芯的结构,成本低。静安区生产AD16系列蜂鸣器
这三个晶体管都有被击穿的嫌疑。用热风枪吹下这三个晶体管测量其两个结之间的正反向电阻又符合PN结的单向导电性,击穿漏电现象消失。测这三个晶体管在主板上的焊接脚位②脚和③脚间的正反向电阻仍表现为击穿特征,说明这三个晶体管是完好的,短路问题仍在主板上与这三个晶体管②、③脚相关的其他元件或电路上。测主板上的所有电解电容,发现CPU周围的C609-C612、C615~C617的正反向电阻都为5Ω,试取下CPU时,其正向电阻充电至无穷大,反向电阻为505Ω。用放大镜仔细观察,发现CPU插座内一脚的两个铜触片严重变形,紧紧地绞合在一起,通过放大镜观察,用镊子细心地分离开已经绞合在一起的铜触片,并...