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北京led显示屏厂家手把手教您维修全彩led显示屏

北京led显示屏厂家手把手教您维修全彩led显示屏

发布日期:2016-03-08 00:00 来源:http://wxhymg.com 点击:

经常遇到客户说全彩led显示屏坏了不会维修,而又特别着急要用,这次特别约了北京金元永恒工程师为您讲解全彩显示屏模组常见问题

本章以室内P4全彩显示屏单元板为例

 一、全彩led显示屏单元板信号介绍 

1 、GONGDIANDIANYA:DC5V 

丰大彩票app下载2 、SHUJUJIEKOUFANGSHI:75,MEIQU16XING、MEIQU16LIE。 

丰大彩票app下载3 、SHURUXINHAO: A 、B 、C、D、OE 、DR 、DG、DB、STB 、CLK 、GND 

丰大彩票app下载4 、SHURUXINHAOJIESHAO:ABCDWEISAOMIAOXINHAO(BENMOZUWEI1/16SAOMIAO)、OEWEISHINENG、DRGBWEISHUJU、 STBWEISUOCUN、CLKWEISHIZHONG、 GNDWEIDI(DIANYUANFUJI) 

ER、 IC JIESHAO(KEYIDAOWANGSHANGCHAXUNXIANGXIZILIAO) 

丰大彩票app下载1 、 U1 U2SHI74HC245 、T1-T16SHI4953 、U4 U5SHI74HC138 、UR1—UR8 UG1-UG8 UB1-UB8SHIJXI5020 

2 、74HC245GONGNENGSHIFANGDAXINHAO,SUOYOUSHURUXINHAODOUYAOJINGGUOCIIC 。YOUSHIZHENGBANYOUWENTIHUOBUCHUANSHUYOUKENENGSHICIICSUNHUAIHUOXUHAN。 

3 、 4953GONGNENGSHIKONGZHIXING,RUGUOBANZISHUIPINGFANGXIANGYOUGUZHANGERQIESHIZHENGXINGYIBANSHICIICDEGUZHANG。 1PIAN4953KONGZHI2XING。 

4 、 74HC138GONGNENGSHIKONGZHISAOMIAODE,SHURUA 、B、C、DHEOEXINHAOSHUCHU5GEXINHAOLAIKONGZHI8PIAN4953。 

丰大彩票app下载5 、 JXI5020GONGNENGSHIKONGZHILIEXIANSHIDE,SHURUSTB 、CLKHEDR XINHAOSHUCHU16GEXINHAOLAIKONGZHI16LIEDENGKUAN *16 GEDENGGAO。 

SHINEIQUANCAIMOZUGUZHANGWEIXIU(YIP4WEILI) 

丰大彩票app下载1 、ZHENGBANBULIANG:BANZIMEIYOUJIESHANGDIANYUAN; SHURUPAIXIANCHAFAN; SHURUSHUCHUDIANDAO; DIANYUANZHENGFUJIJIEFAN(JIEFANHUISHAODIAOBANZISUOYOUIC)。 

丰大彩票app下载2 、BENBANBULIANGCHUANSHUZHENGCHANG : CHAoeXINHAOJI74HC138XIANLUWENTI 

3 、YOUYIXINGBULIANG:138YU4953LIANJIEXIANLUHE4953SUNHUAI(SHIQIZHONGYIGESUNHUAI)。 

丰大彩票app下载4 、GEYIXINGLIANGYIXING:AXINHAODEWENTI,QINGJIANCHA74HC245HE74HC138SHIFOUYOUXUHANpdbXIANLUDUAN;KEYIYONGWANYONGBIAOLIANG74HC138DI1JIAODIANYASHIFOUDENGYU2.5VZUOYOU,RUGUOYOUGENGHUAN74HC138;ZIXILIANGJINZHENDAIICAXINHAODETONGLUQINGKUANG。 

丰大彩票app下载5 、GEERXINGLIANGERXING:BXINHAODEWENTI,QINGJIANCHA74HC245HE74HC138SHIFOUYOUXUHAN;KEYIYONGWANYONGBIAOLIANG74HC138DI2JIAODIANYASHIFOUDENGYU2.5VZUOYOU,RUGUOYOUGENGHUAN74HC138;ZIXILIANGJINZHENDAIICAXINHAODETONGLUQINGKUANG。 

6 、SHANGBANBANZHENGCHANGXIABANBANQUANLIANGHUOBULIANG:RUGUOSHI75JIEKOUYOUZHEIZHONGQINGKUANG,ZHEISHIYINGJIANCHAXIA16XINGSHUJUXINHAOSHIFOUTONGLUJIstb clkXINHAO,RUZHENGCHANGXIANGENGHUAN74HC245RUBUHAOZAIGENGHUANDIYIGEjxi5020. 

7 、CIBANSHANGBANBANHEXIABANBANSTBHECLKXINHAOSHIGONGTONGDE,SHUJUSHIFENKAIDE(RUGUOSHIT75JIEKOUSHUJUSHI2GE)。RUJIANCHAT40 BANZISHISHANGXIABANBANYAOFENKAIJIANCHA。 

丰大彩票app下载8 、RUGUOBANZIYOU1KEDENGBULIANG:JIANCHASHIFOUXUHAN、GENGHUANCIDENGGUAN。 

丰大彩票app下载9 、YOUSHUZHEYOU16KEDENGBULIANG:DIYIJIANCHAjxi5020SHIFOUYOUXUHAN;DIERGENGHUANjxi5020;DISANGENGHUANDENGGUAN。 

10 、ZAISHUZHE16KEDENGLIYOU15KEBULIANGYOU1KEZHENGCHANG:GENGHUANZHENGCHANGNEIKEDENGGUAN。 

11 、RUBANZICONGZHONGJIANHUOBIEDEWEIZHIWANGHOUXIANSHIBUZHENGCHANG:JIANCHASHUJUXINHAOTONGLUQINGKUANG;GENGHUANZUIHOUYIGEZHENGCHANGXIANSHIKONGZHIDENGDE jxi5020;RUWEIPAICHUGENGHUANDIYIGEXIANSHIBUZHENGCHANGDEDENGKONGZHIDEjxi5020。MEIGEjxi5020 KONGZHI16DIANKUAN *16DIANGAOGEDENGGUAN。 jxi5020SHIYONGHONGLVLANSHUJUXINHAOCHUANLIANQILAIDEYEJIUSHIHONGLVLANXINHAOCONGjxi5020DEDI2JIAOSHURUDAODI22JIAOSHUCHUJIEDAOXIAYIPIANjxi5020DEDI2JIAOSHANGZHIDAOZUIHOUYIGEjxi5020. BIRUBENBANHONGLVLANSHUJUCONGJINZHENDAO74HC245FANGDAHOUDAOUR1DAOUR2DAOUR3YIZHIDAOUR8HOUDAOSHUCHUJINZHEN。 

丰大彩票app下载12 、YOUSHIZAIDIAOSHIZHENGPINGDEGUOCHENGZHONGQIANMIANDEMOZUDAOHOUMIANDEMOZUXIANSHIBUZHENGCHANG,YIBANGUZHANGSHIPAIXIANDEMEIYOUCHAHAOHUOSUNHUAI;YEKEYIYONGSHAOZHANGXIEPAIXIANBAXIAMIANZHENGCHADEMOZUPAIXIANCHADAOSHANGMIANBUZHENGCHANGDEMOZUSHANGLAI,KANXIANSHIRUHE,YEKEYIBASHANGMIANBUZHENGCHANGCHUQIANMIANZHENGCHANGMOZUSHUCHUJIEDAOXIAYIPAIMOZUSHANGQUKANXIANSHIRUHE,LAIPANDUANDAODISHINEIGEMOZUCHULEWENTI。 

丰大彩票app下载ZHU:QITAXINGHAOWEIXIUSHIYIZHIDEYUANLIXIANGTONG。ZHENSHIYITONGBAITONG。DANSHUANGSEledXIANSHIPINGMOZUGENGSHIBUZAIHUAXIA。

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