标题: Toshiba P200-12V [打印本页] 作者: 自由的 时间: 2009-8-12 03:38 标题: Toshiba P200-12V Wine was spillt over the notebook and it made damages on several areas of the motherboard. I was able to fix circuit around MAX8734A. Now I am working around ISL6262, to get a power for the CPU.
有人有这个图纸吗？---张先生译作者: 自由的 时间: 2009-8-13 02:27
Anyone has a drawing?
任何人都具有借鉴？
有人有这个图纸吗？---张先生译作者: 自由的 时间: 2009-8-13 16:35
Solution for the MAX8734A problem:
When notebook (spilled by wine) came to repair shop, ther was only blinking light on power LED, and it was red instead of blue. Circuit around MAX8734A did not provide +5V and + 3.3V. After cleaning cleaning circuit from oxidation, I noticed that signal from LM393, that is supposed to start MAX3784A is not arriving. I first replaced LM393 (PU1), but nothing happend. I analyzed LM393 Inputs and found out that 10k resistor on PIN1 leadding to PIN8 is bad. I added another resistor and MAX8734A started to work.
MAX8734A问题的解决过程：
当被洒了酒损坏的笔记本电脑送到维修店的时候，只有电源电源LED指示灯闪烁，LED为红色而不是蓝色。MAX8734A 周边电路没有给出+5V 和 + 3.3V供电。在清除电路氧化后，我注意到没有了来自LM393 (PU1) 的信号，该信号可能用于启动MAX3784A 。我先替换了LM393，但无任何改变。我分析 LM393 的输入，发现了从1#引脚到8#引脚的10K电阻损坏。我用了个好的换上，MAX8734A开始工作。-----张先生译作者: 自由的 时间: 2009-8-13 16:37
I still have a problem with circuit around ISL6262.
Can anybody provide circuit diagram?
我仍然有问题，电路周围ISL6262 。
任何人可以提供电路图？作者: 自由的 时间: 2009-8-14 01:11
More info found on a board:
Hannstar J MV-4
94V-0作者: 自由的 时间: 2009-8-14 03:39
I try to use drawing of Toshiba A200 which is in some areas similar to P200. I found out that supply voltage +3.3V is missing on PU11 (ISL6262). I don't have +3VS, only +3VALW. I noticed that I need SUSP coming from ISL6227 PIN21 and I guess that I need SYSON as input of ISL6227 PIN8.
Anyway, in case of A200 SYSON is generated by KBD controler chip which on P200 does not exsist. So, I guess that SYSON should be generated by ICH-7.
作者: 张先生 时间: 2009-8-14 21:43
论坛管理员心在飞翔为你提供的图纸在下面链接中
Go to see,and download the schematic LA-3711P please! use left mouse key hit the next line. http://www.chinafix.com.cn/viewthread.php?tid=132858&extra=作者: 自由的 时间: 2009-8-15 16:57
Thanks again, 张先生 , for schematic and translation.
再次感谢，张先生，为示意图和翻译。作者: 自由的 时间: 2009-8-15 17:40
In my previous post I had two bad assumptions.
1. Chip ISL 6267 is not producing SUSP signal on PIN21. PIN 21 is also input.
2. I could not find Keyboard Controller Chip. I thought that ICH7 is also acting to control power.
But, when I saw diagram, there was a big Keyboard controler chip KB910QF.
And I found it. It was very well hidden under PCMCIA socket.
There is a lot of oxidation around KB910QF, and I will try to clean it.
我在以前的帖子我有两个坏的假设。
1. 芯片ISL6267不生产SUSP123信号PIN21 。 PIN21还投入。
2. 我找不到键盘控制器芯片。我认为的ICH7还作为电源管理。
但是，当我看到图，有一个大键盘控制器芯片KB910QF 。
我发现它。芯片是非常隐蔽下PCMCIA插槽。
腿KB910QF是氧化了很多，我将努力清理
