Hello friends!
When you are fixing computer hardware, if there is no pinout of the IC, no schematics of that machine, the repair will also be very difficult. And most hardware repair is based on excluding any components that die after a test replacement. This requires many components to replace, and changing back and forth is also easy to kill the ic.
The area is suspected to be dead chip, but there is no replacement chip, to know for sure, it is necessary to look up the datasheet, look up the datasheet to help fix it faster and more accurately.
Introducing the web to look up datasheets of electronic components http://www.alldatasheet.com/ , a website with more than 20 million datasheets of semiconductor components, more than 400 ooo daily search, regularly updated The datasheet of all kinds of new visions is completely free.
Instructions on how to check the pinout of the IC using datasheet.com
+ Step 1: After accessing the page, you enter the part number and click search. For example, here I am looking up the data of the iC APW 7120, this is the ram source bus ic, you follow 3 steps as shown below.
+ Step 2: Click on APW7120, a new board will appear so you can see the pinout of the IC. In addition, the program also gives us a series of related ICs below, you can use the ic below to replace the 7120 ic.
