单板生产176PCS EC570键盘板任务，单板测试发现13PCS键盘上电数码管不亮，故障现象如下。
176 pcs of ec570 keyboard boards were produced on the single board. During the single board test, it was found that the nixie tube of 13 pcs of keyboard was not on, and the fault phenomenon was as follows.
故障现象：
Fault phenomenon:
1.正常键盘板上电后自检显示如下图1（数码管和8个LED灯全亮），随即如下图2上排4个LED全灭，下排LED与数码管一致轮番切换显示频率/电流/电压。
1. After the normal keyboard board is powered on, the self-test display is shown in Figure 1 below (the nixie tube and 8 LED lights are all on), and then as shown in Figure 2 below, the 4 LEDs in the upper row are all off, and the LEDs in the lower row are consistent with the nixie tube, switching the display frequency / current / voltage in turns.
2.此批次故障板上电显示如下图：8个LED全亮，数码管不良，且一直处于此状态。
2. The power on display of this batch of fault boards is shown in the figure below: 8 LEDs are all on, the nixie tube is poor, and it has been in this state all the time.
统计此次生产176PCS使用芯片情况如下：
The statistics of 176pcs chips used in this production are as follows:
此芯片代码为：2004.02.0106，其中芯片丝印08AC5JT和04A41YT为此次新到物料。散料使用前已烘烤。
The chip code is 2004.02.0106, in which the chip silk screen 08ac5jt and 04a41yt are the newly arrived materials. Bulk materials have been baked before use.
|
芯片丝印Chip screen printing |
生产数量production quantity |
测试结果test result |
退仓库return to warehouse |
芯片周期chip cycle |
来料包装incoming packaging |
|
08AC5JT |
107 |
良品OK |
|
2032 |
119PCS整包whole packaging+19PCS散料bulk material |
|
12 |
不良NG |
3片翘脚+16片，3 warped feet + 16 |
|||
|
04A41YT |
18 |
良品OK |
|
2015 |
19PCS散料bulk material |
|
1 |
不良NG |
|
|||
|
13AP4QT |
30 |
良品OK |
|
|
以前生产余料Surplus materials from previous production |
|
7CA113T |
2 |
良品OK |
|
|
|
|
79ALP6T |
1 |
良品OK |
|
|
|
|
81AC4NT |
5 |
良品OK |
2片翘脚 2 warped feet |
|
目前此次新到物料批次为08AC5JT和04A41YT的单板共138PCS被品质暂扣，不允许使用，请反馈厂商确认芯片及处理方案。
At present, 138pcs of boards with new material batches of 08ac5jt and 04a41yt have been temporarily suspended and are not allowed to be used. Please feed back to the manufacturer to confirm the chip and processing scheme.
同批次仓库还有2整包共计181PCS未开封使用（2015周1盘，2032周1盘）。
There are two whole packages in the warehouse of the same batch, with a total of 181 PCs. unsealed (one in 2015 and one in 2032).
整包来料：
Whole package incoming materials:
散料1:19PCS，周期2032
Bulk material 1:19pcs, cycle 2032
散料2：19PCS，周期：2015
Bulk material 2:19pcs, cycle: 2015
单板对EC570故障键盘板进行如下验证，故障随芯片转移。
The single board verifies the ec570 fault keyboard board as follows, and the fault transfers with the chip.
1.单板更换电脑重新烧录键盘板程序，故障依旧，数码管不显示。此前已验证烧录旧程序，故障依旧。
1.The board is replaced by the computer, and the keyboard board program is burned again. The fault remains the same, and the nixie tube does not display. The old program has been verified and burned before, and the fault remains.
2.将故障单板拿到技术部，使用张旭梅电脑和烧录器烧录，故障依旧，数码管不显示。
2. Take the fault board to the technology department and burn it with Zhang Xumei's computer and recorder. The fault remains the same and the nixie tube does not display.
3.准备一块EC750键盘板，烧录到最新EC750键盘板程序V2.55.15，更换芯片前测试，开机自检显示正常（见下图1）。将EC570故障键盘板芯片拆下更换到EC750键盘板上，同样烧录到EC750键盘板程序V2.55.15，开机测试自检显示不全（见下图2）。
3. Prepare an ec750 keyboard board, burn the latest ec750 keyboard board program v2.55.15, test before replacing the chip, and the post display is normal (see Figure 1 below). Remove the ec570 faulty keyboard board chip and replace it on the ec750 keyboard board. Similarly, burn the program v2.55.15 on the ec750 keyboard board. The self-test display of power on test is incomplete (see Figure 2 below).
综上：此批次故障随芯片转移。
To sum up: this batch of faults are transferred with the chip
