Dell 3420 could not start

会员1218428 · 发表于 2019-10-22 20:48:29

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本帖最后由 thanhnamvl86 于 2019-10-22 20:59 编辑

Dell 3420 no bootable, checks sơ bộ nắp # = 3.3v, PSL_IN2 # = 3.3v, PU4002 testing added 3 chan G, D, S = 19V (thất bại), Tiếp tục checks PQ4002 with the chan 2 ( PWR_CHG_ACOK) = 0V (Fail), Check PQ4006 for found chan G (AC_IN #) Trying to áp suất cao make Thái nhi dẫn from D to S. AC_IN # = ACOK # (chan 5 IC BQ24727). Tiến hành kéo AC_IN # lên khối lượng, replacement PC4001 bằng 1k máy started động. máy started động .Đay is exercises, trò chơi, tham gia, tập trung and sức mạnh của trò chơi, trò chơi and trò chơi.

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会员1218428 · 发表于 2019-10-22 21:04:23

I use English. Currently I use a power supply, not an adapter, so it doesn't recognize the charger. Newspaper must use 65W charger

会员513420 · 发表于 2019-10-22 20:57:21

看不懂是什么文字啊，，泰国还是缅甸的老铁？你说的是开机提示 65W 报错？？？？？？？

会员1133590 · 发表于 2019-10-23 07:35:20

DELL Use the One wire protocol to communicate with the charger, after reading the data from charger mid-pin and verifying the CRC, it could be examined to find the field that specifies voltage and current.
Charger with damage or no mid-pin may still power on the laptop, but display a warning message and not charging the battery.
You can get a female 5.5 x 2.5 to male dell 7.5 x 5.0 charger adapter DC jack from an online store to send fake data to the laptop pretending DELL charger.

会员1218428 · 发表于 2019-10-23 09:32:05

yericl 发表于 2019-10-23 07:35
DELL Use the One wire protocol to communicate with the charger, after reading the data from charger ...

Thanks for you, I live in VietNam , When the repair is mainly using a universal charger for the line-up machine, you can give me the correct image for me to buy online.

会员502402 · 发表于 2019-10-23 13:11:00

看不懂

会员615536 · 发表于 2019-10-23 14:52:01

哪个大哥来翻译下。？！

来自安卓APP客户端

会员626631 · 发表于 2019-10-23 15:05:06

越南人英语这么好。

来自苹果APP客户端

会员582420 · 发表于 2019-10-23 15:31:30

他的意思是维修过程

会员1029051 · 发表于 2019-10-23 20:32:02

thanhnamvl86 发表于 2019-10-23 09:32
Thanks for you, I live in VietNam , When the repair is mainly using a universal charger for the li ...

https://detail.tmall.com/item.ht ... 27b&abbucket=11

This should work, and Dell has two kinds of power heads, big mouth with needle, small mouth with needle. The power head has a built-in chip, which can simulate the original adapter and has the function of charging. You should be able to buy it on Taobao.

会员1133590 · 发表于 2019-10-24 02:03:49

lpz2012 发表于 2019-10-23 14:52
哪个大哥来翻译下。？！

连蒙带猜，估计意思像是他直接用可调电源连入充电口的正负极来开机，但开机后有他图上的错误信息，问有什么解决方案。

会员542327 · 发表于 2019-10-24 07:12:47

说的是ACOK检测为0V，等等

来自安卓APP客户端

会员1028541 · 发表于 2019-10-25 11:01:07

客户没有电源吗，直接换个电源就好了呀，如果自己拿来测试可以用转接头

会员896099 · 发表于 2019-10-25 11:08:11

看来这位是外国友人，我一句没看懂，图纸倒看一点

会员337759 · 发表于 2019-10-25 11:18:07

下个翻译软件整成中文的在发，看不懂

会员1218428 · 发表于 2019-10-25 12:25:49

1KB电脑维修发表于 2019-10-25 11:18
下个翻译软件整成中文的在发，看不懂

Sorry, i don't know speak china, i use google.

会员409991 · 发表于 2019-10-25 12:32:42

都没看懂什么意思，看图应该是充电器问题吧，有的BIOS里面可以改的

会员196817 · 发表于 2019-10-25 12:33:43

这个贴。考研英语水平

会员1218428 · 发表于 2019-10-25 12:42:24

chxj 发表于 2019-10-25 12:32
都没看懂什么意思，看图应该是充电器问题吧，有的BIOS里面可以改的

PQ4002 Fail. PQ4002 error needs replacement to use charger and battery.

Dell 3420 could not start

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