p10半户外单元板维修资料

一、模组信号介绍
1 、供电电压：DC5V
2 、数据接口方式：T12 ，每区8行、每区8列、上数据、OE高有效。
3 、输入信号： A 、B 、OE 、DR 、STB 、CLK 、GND
4 、输入信号介绍：A和B为扫描信号（本模组为1/4扫描）、OE为使能、DR为数据、 STB为锁存、CLK为时钟、 GND为地（电源负极）
二、 IC 介绍（可以到网上查询详细资料）
1 、 U1是74HC245 、U2和U3是4953 、U4是74HC138 、UR1—UR16是74HC595
2 、74HC245功能是放大信号，所有输入信号都要经过此IC 。有时整板有问题或不传输有可能是此IC损坏或虚焊。
3 、 4953功能是控制行，如果板子水平方向有故障而且是整行一般是此IC的故障。 1片4953控制8行。
4 、 74HC138功能是控制扫描的，输入A 、B和OE信号输出4个信号来控制2片4953。
5 、 74HC595功能是控制列显示的，输入STB 、CLK和DR 信号输出8个信号来控制8个灯宽 *4 个灯高。
户外模组故障维修（以我厂生产P10-1R为例）
1 、整板不亮：●板子没有接上电源；●输入排线插反；●输入输出颠倒；●电源正负极接反（接反会烧掉板子所有IC）。
2 、本板不亮传输正常 : 保护电路损坏解决办法可以把74HC138第4脚和第5脚短路。
3 、隔三行有一行不亮：●4953损坏（是其中一个损坏）。
4 、隔一行亮一行：A信号的问题，请检查74HC245和74HC138是否有虚焊；可以用万用表量74HC138第1脚电压是否等于2.5V左右，如果有更换74HC138；仔细量金针带ICA信号的通路情况。
5 、隔二行亮二行：B信号的问题，请检查74HC245和74HC138是否有虚焊；可以用万用表量74HC138第2脚电压是否等于2.5V左右，如果有更换74HC138；仔细量金针带ICA信号的通路情况。
6 、上半板正常下半板全亮或不亮：如果是T08A接口有这种情况，这是应检查下8行DR数据信号是否通路，如正常先更换74HC245如不好再更换第一个74HC595.
7 、此板上半板和下板板STB和CLK信号是共同的，数据是分开的（如果是T12接口数据也是1个）。如检查T08A 板子是上下半板要分开检查。
8 、如果板子有1棵灯不亮：检查是否虚焊、更换此灯管。
9 、有竖着有4棵灯不亮：第一检查74HC595是否有虚焊；第二更换74HC595；第三更换灯管。
10 、在竖着4棵灯里有3棵不亮有1棵正常：更换正常那颗灯管。
11 、如板子从中间或别的位置往后显示不正常：检查数据信号通路情况；更换最后一个正常显示控制灯的 74HC595；如未排除更换第一个显示不正常的灯控制的74HC595。每个74HC595 控制8点宽 *4点高个灯管。 74HC595是用DR数据信号串联起来的也就是DR信号从74HC595的第14脚入到第9脚出接到下一片74HC595的第14脚上至到最后一个74HC595. 比如本板DR数据从金针到74HC345放大后到UR1到UR2到UR3一直到UR8后到输出金针。
12 、有时在调试整屏的过程中前面的模组到后面的模组显示不正常，一般故障是排线的没有插好或损坏；也可以用稍长些排线把下面正查的模组排线插到上面不正常的模组上来，看显示如何，也可以把上面不正常处前面正常模组输出接到下一排模组上去看显示如何，来判断到底是那个模组出了问题。
注：其他型号维修是一致的原理相同。
file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ksohtml/wps_clip_image-1536.png
P10-1R 模组背后图片

[whitepad]***400;200;400,200;;** m9,28 l13,28,15,29,18,29,21,31,25,32,29,34,34,41,37,46,39,50,42,51,43,54,44,55,44,56,41,56 e|********* m48,22 l51,22,55,24,58,25,63,27,67,33,71,38,74,43,77,47,78,48,80,49,82,52,82,53,81,53 e|********* m88,25 l89,25,89,28,88,29,87,31,82,36,79,37,76,40,74,41,71,42,69,43,66,45,64,45,62,47 e|********* m19,63 l19,64,20,65,20,68,23,72,27,76,29,80,34,85,37,87,39,87,40,89,40,88,38,86,38,85,37,83,37,80,35,78,35,70,37,69,38,69,41,68 44,66,49,66,54,65,61,64,71,61,80,60,90,59,112,59,112,60,114,61,114,62,116,64,116,67,117,69,117,71,116,74,116,77,113,80,111,83,110,86 108,87,106,89,100,89 e|********* m70,78 l76,78,78,79,86,79,88,80,92,80,92,82,91,84,86,87,82,92,72,98,70,100,66,100,66,101,70,107,72,114,75,122,77,132,77,140,78,146,78,160 69,160,66,158,63,155,58,154,54,152,52,150,49,148,46,145,42,142 e|********* m108,42 l115,42,119,43,129,43,132,42,134,39,136,39,140,38,146,32,148,33,148,38,150,42,150,52,151,64,154,73,155,84,156,92,157,102,159,109,160,117,160,151 161,152,154,152,148,149,143,146,139,142,136,137,134,134,133,131 e|********* m125,83 l128,83,130,85,133,87,134,92,137,95,139,99,139,105,137,108,133,112,132,115,129,119,127,122,124,126,123,127 e|********* m120,131 l125,131,128,129,134,123,140,120,144,116,146,115,147,114,149,113,149,110,150,108,150,100,148,97 e|********* m165,38 l165,37,166,37,168,35,212,35,212,38,211,40,209,41,205,46,202,48,198,49,196,50,195,53,191,53,191,54,192,54,193,60,195,65,196,75,198,83,198,101 201,109,202,116,202,121,203,126,203,131,202,131,200,130,196,130,194,128,191,126,187,122,184,118,183,116,181,115 e|********* m247,27 l250,27,251,31,254,35,254,38,255,41,255,50,254,50 e|********* m247,50 l249,50,251,51,258,51,259,52,259,54,260,58,260,72,258,80,258,90,254,99,252,105,252,112,255,112,255,110,260,105,263,101,269,98,275,94,280,89 e|********* m275,5 l275,22,273,24,272,26,272,28,270,28,270,30,269,30,269,32,270,36,271,42,273,48,273,61,274,64,274,68,272,67,270,65,270,47 e|********* m296,20 l303,18,312,18,313,16,314,16,314,20,315,23,315,43,313,52,311,62,311,194,310,196,308,196,303,194,299,186,292,175 e|********* m280,51 l282,51,286,53,291,54,295,55,299,57,301,59,304,61,306,62,307,64,309,64,309,66,311,67,311,68,309,70 e|********* m288,77 l290,77,291,78,296,79,298,80,301,81,301,82,302,82,302,83,303,84,303,86,301,88,299,89 e|********* m269,108 l273,108,277,104,282,101,286,97,290,95,295,92,299,89,301,88,306,85,307,84,309,83,312,83,312,82,310,82 e|********* m270,76 l277,76,278,77,297,77 e|********* m323,60 l323,59,325,58,327,55,331,53,339,45,340,43,342,41,343,39,344,36,345,36,345,30,344,28,342,28,342,26,340,26 e|********* m331,31 l333,42,334,55,334,67,338,93,340,105,340,149,338,150,335,150,332,148,328,145,324,139,323,134,323,126 e|********* m324,115 l340,115,340,111,345,100,349,89,352,77 e|********* m361,38 l361,40,359,44,358,47,358,61,359,63,361,65,364,69,367,72,370,76,371,78,374,80,376,85,377,87,377,94,375,96,374,98,370,99,368,101,365,103,363,104 361,106,359,106 e|********* m359,106 l362,106,363,107,365,110,370,113,371,115,374,118,374,121,375,122,376,124,376,130 e|********* m367,159 l367,160,368,160,368,161 e[/whitepad]

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谢谢啊，长知识了
[whitepad]***400;200;400,200;;** m9,45 l9,46,11,46,13,47,20,47,26,48,49,48,55,46,61,45,65,45,67,44,68,43,69,43,69,39,68,38,67,38,67,37,65,35,64,35,63,34,62,34 62,33,61,33,60,32,58,31 e|********* m35,14 l36,21,37,23,37,26,38,29,38,35,39,40,39,44,40,48,40,53,41,58,41,64,42,73,43,81,44,85,44,91,45,94,45,98,46,104,46,122,47,125 47,134,46,131,44,128 e|********* m36,61 l36,74,35,76,34,77,33,81,32,83,31,84,30,88,28,90,27,92,25,92,23,96,21,98,21,100,20,101,19,101,19,102,17,102,17,100 e|********* m45,63 l47,63,50,66,51,68,52,69,54,70,56,72,57,74,59,76,61,80,62,80,63,82,65,84,66,86,67,87,67,88,69,88,69,87 e|********* m80,24 l80,29,82,33,82,36,86,44,88,46,89,48,91,50,92,50,93,51,98,51,99,50,101,50,105,48,108,47,114,44,115,43,117,43,117,32,116,30,113,27 110,27,109,26,108,26,107,25,106,25,106,24,105,24,103,23,102,22,101,22,101,25,100,27,99,32,99,56,100,62,100,72,99,72,96,69 e|********* m92,47 l92,55,91,55,90,59,89,59,89,60,88,61,88,62,87,63,87,64,85,64,84,65,84,66,83,66,82,67,79,67,78,68,75,68 e|********* m117,52 l117,55,106,55,106,60,109,63,110,65,112,66,115,69,116,69,117,70,120,70,118,71,115,71,112,72 e|********* m94,77 l94,85,95,88,95,95,96,99,98,106,100,112,102,115,103,118,104,120,106,123,107,125,112,130,119,130,121,129,123,125,124,124,126,120,126,106,124,103,124,102 122,98,121,97,121,94,120,94,120,93,112,93,108,95,106,97,103,98,101,99,95,101,93,101,85,102,80,104,74,104,74,102,75,102,76,101,77,101,78,100 80,100,81,99,90,96,109,94,117,92,126,92,126,91 e|********* m152,36 l159,36,160,37,160,50,158,52,158,54,157,55,157,58,156,58,156,75,152,75,151,74,151,73,150,73,150,72,149,70,148,69,148,67,149,66,151,66,152,65 156,64,160,64,161,65,161,66,165,69,166,70,166,80,165,81,165,82,164,82,163,83,162,85,161,86,157,88,154,91,153,91,151,92,150,93,148,94,148,95 145,95,143,97,143,98,141,98,140,99,198,99,198,95,195,93,193,90,188,85,185,81 e|********* m155,23 l155,24,156,24 e|********* m220,39 l221,39,222,40,224,40,225,41,228,41 e|********* m210,59 l215,58,223,58,226,56,230,56,231,58,231,61,232,63,232,68,233,71,233,102,234,103,237,103,239,102,242,102,244,101,247,99,250,99,252,98,253,98,253,86 e|********* m273,33 l272,34,271,36,271,37,270,37,270,39,269,41,268,42,268,44,267,44,267,46,265,50,264,51,263,53,263,54,262,56,261,57,261,59,260,61,260,63,259,65 259,80,260,81,267,81,267,80,269,79,270,78,278,74,278,73,280,73,280,59,279,57,278,57,278,56,275,53,270,53,267,54,265,55,261,56,260,57,257,57 256,58,255,58,255,60 e|********* m264,69 l278,69,278,68,273,68 e|********* m278,68 l278,110,268,110,267,109,266,109,265,108,265,106 e|********* m288,69 l279,69,277,72,275,72,274,73,273,73,271,74,270,75,270,76,268,76,268,77,267,78,267,79,266,80,266,82,265,83,265,84,264,84,263,88,262,88,261,90 261,91,260,92,260,93,259,94,259,96,258,97,258,99,257,100,257,105,237,105,235,104,234,103 e|********* m283,72 l289,72,290,71,293,70,303,67,307,66,308,65,310,65,310,54,309,53,309,50,308,50,305,47,304,47,303,46,302,46,302,47,301,48,301,61,302,64,302,67 303,75,303,112,293,107,285,104,280,101,279,101,279,100,278,97,278,92,280,92,282,91,284,91,286,90,288,90,288,89 e|********* m323,127 l325,127,328,128,331,128,336,129,340,129,343,130,346,130,346,140,345,141,344,143,341,146,340,146,340,147,338,148,332,148,332,149,333,152,336,155,338,156,341,159 343,159,344,160,345,162,345,163,347,165,347,168,348,169,348,180,339,180,338,181,326,181,324,180,317,180 e[/whitepad]

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[whitepad]***400;200;400,200;;** m25,26 l30,26,40,28,49,29,55,30,60,31,69,31,67,32,61,33,57,34,52,36,48,37,46,38,45,38,43,39,42,39,36,42,35,42 e|********* m59,36 l55,36 e|********* m52,36 l52,37,53,38,53,55,52,56,52,54 e|********* m52,38 l53,38,57,40,60,42,65,45,69,48,73,49,73,50,75,50,75,51 e|********* m17,20 l16,20,16,22,17,23,18,26,19,28,20,28,20,31 e|********* m16,40 l16,41,20,41,20,42,21,42,21,45,20,45,19,47,19,49,18,49,17,50,17,52,18,53,21,54,24,56,26,56,27,57,27,60,24,62,24,63,22,64 22,65,21,66,18,66,21,67,28,67,32,68,62,68,64,69,73,69 e|********* m100,28 l100,29,103,34,104,38,104,42,106,47,106,57 e|********* m89,21 l105,21,114,22,128,24,135,24,139,25,141,25,139,27,139,29,138,31,136,34,135,37,133,41,133,42,132,44,131,44,131,46,130,47,129,45,123,43 e|********* m110,33 l117,33,121,35,123,35,123,36,121,38,118,40,116,40,115,41,113,42,110,42 e|********* m110,42 l110,43,120,43,124,44,128,44,120,46,116,46 e|********* m88,55 l135,55 e|********* m117,56 l118,57,118,69 e|********* m120,66 l133,66 e|********* m110,64 l106,67,105,69,103,72,102,74,101,75,100,75 e|********* m110,70 l115,70,120,71,124,73,130,74,134,76,137,76,140,77,142,77,144,78,146,78 e|********* m199,21 l197,21,191,22,177,28,170,30,165,32,161,33,159,34,158,34 e|********* m152,43 l196,43 e|********* m160,56 l216,56,217,55 e|********* m193,39 l192,39,192,40,185,54,181,60,175,70,172,73,169,77,166,80,163,81,161,82,160,83 e|********* m180,71 l180,75,181,80,181,91,183,89,183,87 e|********* m183,62 l187,62,189,63,192,65,194,67,197,68,205,68,205,87,204,88 e|********* m189,77 l189,76,196,76,195,77,195,78,193,79,190,81 e|********* m189,83 l196,83,195,84,194,84 e|********* m186,87 l187,88,197,88 e|********* m223,28 l225,28,229,29,232,30,245,30,243,31,242,34,236,44,233,47,230,51,230,52,228,54,227,56,226,57,225,57,225,59,223,60,223,62,224,62 e|********* m234,47 l235,48,236,52,236,55,238,65,238,70,240,73,240,83,241,85,242,88,242,80 e|********* m232,43 l233,43,234,44,235,44,241,50,243,51,244,52,250,55,250,56,251,56,251,57 e|********* m268,41 l269,41,269,42,271,48,271,51,272,53,272,59 e|********* m288,23 l288,108,289,106,290,102 e|********* m294,54 l295,53,297,54,299,56,301,59,303,61,304,64,305,64,305,59 e|********* m299,14 l301,14,301,15,307,15,314,16,322,17,335,18,380,18,378,19,377,19,370,20,365,21,361,21 e|********* m337,10 l340,19,342,29,342,36 e|********* m347,12 l350,17,354,32,354,40 e|********* m356,33 l357,33,357,35,355,40,352,43,348,46,333,56,326,60,320,62,313,65,311,66,308,67,307,69,351,69,341,70,336,71 e|********* m327,73 l326,73,326,85 e|********* m325,79 l346,79,348,80,353,80,355,81,357,81,357,82,356,82,355,83,354,86,353,88,353,89,352,90,351,90,351,91,349,93,348,93,346,95,345,95,344,94,344,93 342,93,336,90 e|********* m328,84 l329,83,333,83,338,84,349,84,350,85,346,85,342,86,340,87,338,87,337,88,346,88,345,87 e|********* m340,52 l339,52,338,53,338,70,336,79,336,109,331,104 e|********* m323,99 l350,99,336,101,333,102 e|********* m314,104 l332,104,342,105,360,107,368,108,370,109 e|********* m37,112 l38,112,42,114,45,115,49,116,54,117,64,117,61,122,54,128,44,136,41,139,36,143,33,145,32,147,30,148,27,151,27,152,26,153,25,153 e|********* m47,135 l47,157,48,158,48,156,49,154 e|********* m49,135 l52,138,55,140,56,141,56,142,58,143,59,144,59,145,60,145,61,146,62,146 e|********* m9,114 l10,114,12,116,14,117,15,118,16,118,16,119,17,119,17,120,18,120 e|********* m13,129 l13,130,15,132,17,132,19,133,20,134,21,134,21,144,20,146,20,147,21,149,23,151,23,160,22,160,21,161,21,162,20,163,62,163,66,161,69,161,70,160 71,160 e|********* m97,106 l97,108,98,110,102,116,105,122,105,123,106,126,106,130,103,129 e|********* m93,104 l93,103,101,103,109,104,121,106,126,106,127,107,128,107,130,108,131,110,131,111,132,112,134,118,134,134,132,134,129,132 e|********* m108,117 l122,117,122,119,117,124 e|********* m100,132 l122,132 e|********* m84,141 l86,141,92,142,103,143,113,144,124,146,132,147,139,148,142,149,143,149 e|********* m122,149 l121,150,121,152,122,158,122,169,121,169,120,168 e|********* m117,162 l136,162,146,164,128,164 e|********* m107,153 l107,159,105,162,102,168,100,170,100,171,97,174,96,174,96,175,95,175,94,176,93,176 e|********* m103,167 l108,167,113,168,120,170,150,170 e|********* m175,111 l176,113,182,115,189,117,243,117 e|********* m160,125 l168,137,174,145,179,154,180,158,183,163,185,166,186,169,187,169,187,165 e|********* m175,147 l252,147,252,155,251,157,249,159,246,160,244,161,241,162,239,163,224,163,224,162,223,161,222,157 e|********* m212,133 l208,145,208,149,207,150,207,149,208,146 e|********* m220,126 l223,132,223,137,225,139,225,151,224,152,222,155,221,155,221,156,220,156,216,157,213,157 e|********* m198,160 l219,160,218,161,217,161,215,162,213,166,210,171,201,180,199,180,201,181,203,183,212,188,216,191,218,191,219,192,219,193,221,193,223,194,225,196,227,196,228,197 226,194 e|********* m223,175 l225,176,225,178,224,180,215,189,207,195,200,197,194,197,194,196,192,195,178,195,176,193,176,187 e|********* m182,170 l242,170 e|********* m266,122 l269,123,271,124,274,127,279,128,283,130,287,131,287,132 e|********* m259,138 l283,138,284,139,284,144,282,147,281,151,280,154,279,159,278,163,278,166,277,169,277,175,278,174,280,173,283,172,289,169,294,164,294,159 e|********* m330,106 l330,107,327,109,323,114,320,116,312,121,309,123,306,124,305,125,304,125,304,126,303,126,303,131,302,135,302,143,299,152,298,160,297,167,297,171,296,174,295,176 294,177,294,176,293,174,293,167 e|********* m297,149 l315,146,316,146,316,147,314,151,313,154,310,158,309,160,307,163,305,164,304,165,303,165,301,166,302,166,309,165,313,164,323,162,323,161,321,158,316,153 e|********* m302,138 l313,137,328,137,328,158,325,165,325,170,323,177,322,182,320,187,316,195,316,196,315,196,314,198,297,198,294,196,294,195,293,195,290,193,284,187,284,185,290,182 298,180,314,178,317,178,319,177,319,176,323,173,325,171 e|********* m317,179 l310,186,304,190,298,192,288,197,282,199,273,199,274,197,276,196,278,196,282,194 e|********* m332,168 l336,167,339,165,345,164,350,162,356,160,366,159,376,157,386,156,392,155,394,154,389,154,386,152,381,149 e|********* m371,129 l372,144,373,154,373,176,372,192,346,198,345,195,345,187,346,185,348,184,361,184,360,183 e[/whitepad]

学习了，太有用了


，

学习中，最近在网上买了一块64*64的LED显示屏，正在研究中。

谢谢 ,学习了...{:1_118:}

看不大明白。。。。。。。。。。。。。。。。。。。。。

学习了 学习 谢谢 {:1_145:}

有学习到了新知识谢谢楼主

好重要的资料 大家一定要保存 牢记

这个很实用，楼主理好棒

第一回见过有价值的维修资料

谢谢啊，长知识了
有价值

谢谢啊，长知识了
有价值

学习中~~~~~~~~~~~~~~~~~~~~~~~`

谢谢啊，学习 学习 学习。。。。。。。。。。。。。

{:1_146:} 谢谢分享,我不客气收下了

谢谢啊，长知识了
有价值——本文来自〖www.521LED.com〗原帖地址：http://www.521led.com/viewthread.php?tid=1854&fromuid=238

这么好的贴子大家一定要顶起来啊

请问下，这个板子返修率高吗？
零配件好买吗？

看不见图片啊，是不是没有了

谢谢了，不过看不到图片了，不过也好了，希望下次能发的更好一点

受益匪浅，谢谢楼主指教

谢谢你的资料了让我学到了很多只是{:1_148:}

太经典了 强烈支持 学习中