Laptop motherboard repair does not take the code

We refer here not to go yard, provided that CPURST # and CPUPWRGD have been normal. If CPURST # and CPUPWRGD not normal output, not in the scope of this lesson. Note that some machines if CPURST # pull-up resistor is not connected to the VCCP, the general need to install the CPU to normal output CPURST …

Laptop Repair Blog

Laptop Repair Blog Ceramic Capacitors on motherboards how to check if shorted How to check the (brown) ceramic capacitors on motherboards. Simple, using a standard Ohm meter in the Resistance mode. Since the biggest problems with caps when they fail is the become either a direct short, or they will never store capacitance (open).The meter …

Laptop Mainboard: những lỗi thường gặp và cách khắc phục.

Laptop mainboard: Bo mạch chủ máy xách tay Không giống như máy tính để bàn, mainboard laptop có rất nhiều hình dạng và kích thước khác nhau. Mainboard laptop được thiết kế để phù hợp với sắp đặt của từng dòng máy cụ thể. Nói cách khác, không thể lấy mainboard laptop Toshiba mà gắng …

Laptop: IC MAX768 tạo áp nguồn 3V3 và 5V

Laptop: IC Max768  tạo áp nguồn 3V3 và 5V Xem thêm bài: Mạch quản lý nguồn đôi 3v3 và 5v cho máy tính xách tay. Max786 là IC điều khiển nguồn cho máy tính xách tay. Nhiệm vụ chính của IC là tạo xung và điều chỉnh xung để kết hợp với Cặp Mosfet, cuộn dây, …

Compact Fluorescent Lamp (CFL)

Compact Fluorescent Lamp (CFL) Menu Introduction Electrical construction Lamp start Normal operation Failures Repair of electronic Mechanical construction Reviewing Links Schematics and photos bigluz20w Isotronic 11W Luxtek 8W Maway 11W Maxilux 15W Polaris 11W BrownieX 20W PHILIPS ECOTONE 11W(9.5.2002) IKEA 7W(12.4.2003) OSRAM DULUX EL 11W(13.11.2004) OSRAM DULUX EL 21W(3.12.2005) EUROLITE 23W(13.10.2008) SINECAN 5 2×26-30W(13.10.2008) IMMEDIATELY …

Single CPU and a number of power supply diagram 不指定

Single CPU and a number of power supply diagram 不指定 1, single power supply diagram 2, a number of power supply diagram Note: Figure in the Q1, Q2 a lot of motherboards for the field control, a number of power supply in a group of Q1Q2 make a bad CPU is not working properly, causing …

Laptop: circuit create 3v3 and 5v power supply before

Circuit operation: This is the source circuit “classic” that we will meet all Hoai mAh power source in the laptop as RAM, CPU Vcore Power, power chipset, VGA chip source … As with branch branch quite like 3v3 5v so I just draw a branch lqv77 which stands for the second 5v 3v3 and 5v source. Should View: click …

dell ac power adapter not recognized

With so many DELL laptops with the message “DELL AC Power adapter could not be determined” on the screen, it’s time to look into this with a bit more detail. As already noted in breakdowns section, the DELL AC power adapter used for the DELL Latitude D610 has an Identification wire, which is the tiny center pin in the power plug. Trying …

Leadtek K7S741MG-6L Maintenance Log 不指定

Leadtek K7S741MG-6L Maintenance Log  Two plates the same board. The same fault!The value of visual play there is no problem, plug in the power point switch is triggered, not power. For the K7 board, not a general power will first look at the board because this component ATTP1 【】 easily damaged and found that this …