ABB3HAC020343-001 触摸屏
维修经验总结
一.带程序的芯片
1.EPROM芯片一般不宜损坏.因这种芯片需要紫外光才能擦除掉程序,
故在测试中不会损坏程序.但有资料介绍:因制作芯片的材料所致,随着
时间的推移(年头长了),即便不用也有可能损坏(主要指程序).所以要
尽可能给以备份.
2.EEPROM,SPROM等以及带电池的RAM芯片,均极易破坏程序.这类芯片
是否在使用<测试仪>进行VI曲线扫描后,是否就破坏了程序,还未有定
论.尽管如此,同仁们在遇到这种情况时,还是小心为妙.笔者曾经做过
多次试验,可能大的原因是:检修工具(如测试仪,电烙铁等)的外壳漏电
所致.
3.对于电路板上带有电池的芯片不要轻易将其从板上拆下来.
二.复位电路
1.待修电路板上有大规模集成电路时,应注意复位问题.
2.在测试前装回设备上,反复开,关机器试一试.以及多按几次复
位键.
ABB3HAC020343-001 触摸屏
| 3HAC021390-001 | 3HAC0236-1 |
| 3HAC021395-001 | 3HAC023618-004 |
| 3HAC021448-001 | 3HAC023621-001 |
| 3HAC021448-002 | 3HAC023621-003 |
| 3HAC021448-003 | 3HAC023625-001 |
| 3HAC021448-005 | 3HAC023634-001 |
| 3HAC021464-004 | 3HAC023634-005 |
| 3HAC021474-001 | 3HAC023637-001 |
| 3HAC021475-001 | 3HAC023637-003 |
| 3HAC021480-001 | 3HAC023637-004 |
| 3HAC021485-001 | 3HAC023637-005 |
| 3HAC021488-001 | 3HAC023637-007 |
| 3HAC021488-002 | 3HAC023651-001 |
| 3HAC021488-003 | 3HAC023651-005 |
| 3HAC021488-004 | 3HAC023651-006 |
| 3HAC021488-005 | 3HAC023651-007 |
| 3HAC021501-001 | 3HAC023659-003 |
| 3HAC021505-002 | 3HAC023660-003 |
| 3HAC021513-001 | 3HAC023678-001 |
| 3HAC021514-001 | 3HAC023679-001 |
| 3HAC021515-001 | 3HAC023680-001 |
| 3HAC021517-001 | 3HAC023681-001 |
| 3HAC021518-001 | 3HAC023682-001 |
| 3HAC021519-001 | 3HAC023683-001 |
| 3HAC021525-001 | 3HAC023684-001 |
| 3HAC021539-001 | 3HAC023685-001 |
| 3HAC021541-002 | 3HAC023686-001 |
| 3HAC021541-003 | 3HAC023687-001 |
| 3HAC021563-001 | 3HAC023701-001 |
| 3HAC021563-012 | 3HAC023701-002 |
| 3HAC021567-001 | 3HAC023702-001 |
| 3HAC021570-005 | 3HAC023702-002 |
| 3HAC021570-006 | 3HAC023704-001 |
| 3HAC021570-007 | 3HAC023714-001 |
| 3HAC021580-001 | 3HAC023715-001 |
| 3HAC021587-001 | 3HAC023717-001 |
| 3HAC021588-001 | 3HAC023718-001 |
| 3HAC021590-001 | 3HAC023744-003 |
| 3HAC021591-005 | 3HAC023745-003 |
| 3HAC021591-006 | 3HAC023748-003 |
| 3HAC021591-007 | 3HAC023750-001 |
| 3HAC021592-001 | 3HAC023775-001 |
| 3HAC021593-001 | 3HAC023775-002 |
| 3HAC021594-001 | 3HAC023775-003 |
| 3HAC021594-003 | 3HAC023775-004 |
| 3HAC021600-001 | 3HAC023775-005 |
| 3HAC021601-001 | 3HAC023775-006 |
| 3HAC021602-001 | 3HAC023775-007 |
| 3HAC021606-001 | 3HAC023775-012 |
| 3HAC021608-001 | 3HAC023776-001 |
| 3HAC021609-001 | 3HAC023779-001 |
| 3HAC021625-001 | 3HAC023781-001 |
| 3HAC021625-002 | 3HAC023791-001 |
| 3HAC021629-001 | 3HAC023791-002 |
| 3HAC021631-001 | 3HAC023791-003 |
ABB3HAC020343-001 触摸屏
| 6SN1111-0AA00-0FA0 |
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| 6SN1123-1AA00-0AA0 |
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ABB3HAC020343-001 触摸屏
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