2014年9月24日星期三

DELL N4030 laptop's a common fault ...

DELL N4030 laptop's a common fault , power on , the current was 0.12A only ,  does not work , checked  the audio control IC U3001--92HD79B1A5 damaged . so there is short circuit between +5V_RUN and GND . replaced it , the laptop works . please note remove and install , can not use heat gun , because there is a small cmos battery on the back . Your loyal friend - Pinkney ,http://www.htic-tool.com 


from https://plus.google.com/b/107329939332162905445/+Htictoolchipset/posts

JMB389 QFP-48 IC

http://www.htic-tool.com/jmb389-qfp48-ic_p1093.html

NVIDIA GPU N13M-GS-B-A2 BGA with balls chipset

http://www.htic-tool.com/nvidia-gpu-n13mgsba2-bga-with-balls-chipset_p1090.html

VIA VT6301S CD QFP IC

http://www.htic-tool.com/via-vt6301s-cd-qfp-ic_p1091.html

New NVIDIA GPU G86-213-A2 BGA with balls

http://www.htic-tool.com/new-nvidia-gpu-g86213a2-bga-with-balls_p1089.html


2014年9月20日星期六

A common fault of IBM T21 laptop ..

A common fault of IBM T21 laptop , power on , the panel lamp lights and  off immediately , or automatic shutdown after working for an hour , and can not restart . usually relevant relationship with ADP3421, it is a power IC for CPU , replaced it , back to normal work . At the same time suggestions to replace ADP3410 together . Your loyal friend - Pinkney , http://www.htic-tool.com 

from https://plus.google.com/b/107329939332162905445/+Htictoolchipset/posts

OZ711EZ1TN TQFP-128 IC

http://www.htic-tool.com/oz711ez1tn-tqfp128-ic_p1075.html

NVIDIA GPU G96-630-C1 BGA with balls chipset

http://www.htic-tool.com/nvidia-gpu-g96630c1-bga-with-balls-chipset_p1073.html

BD4175KVT TQFP-64 IC

http://www.htic-tool.com/bd4175kvt-tqfp64-ic_p1074.html

NVIDIA GPU G98-640-U2 BGA with balls chipset

http://www.htic-tool.com/nvidia-gpu-g98640u2-bga-with-balls-chipset_p1072.html