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Showing posts with the label power supply

MACBOOK WHITE 2009: BROKEN CHARGER SOLVED BY CHARGER CABLE SOLDERED PERMANENTLY

Hi all, this is my wife old laptop..purchased back in 2009..still quite smooth and has been utilise by her and the kids. After several time facing the problem with it charger such as overheat, melting, magnet connector damaged, then fix it again as in  the link for several time. then..i decided to install the charger cable permanently with the hope that it can last long.  Since this laptop stay at the same place and not moving around. so, it is safe to, i guess, to permanently install its charger cable, as long as its working. Figure 1: Disassemble the macbook to access the charger circuit (picture shown mainboard) Disassembley and fixing step: 1) The first step was to remove back cover to have acces to internal circuitary. 2) Once back cover is open, disconnect the battery connector first to cut/remove supply from battery to the circuit. This is important to make sure no damage happen to mainboard during repair work. 3) remove battery by unscr...

HP LAPTOP CHARGER ADP-65HB 65W NOT WORKING, WHY AND HOW TO FIX IT?

Hi all, My HP Laptop charger  suddenly not working 2-3 months ago and already managed to buy new charger. But, but, now have time to have look into old charger to troubleshoot the problem and solve it if possible. Symptom of problem with charger: no DC voltage at output dc connector. Checked the main plug fuse, and its ok. So, main problem should inside the black square converter box. In order to fix it (troubleshoot the problem or find the problem), the cover must be open and this is by breaking the black cover. Figure 1: Opening the case for charger figure above show picture after case or cover is open. then we can visually inspect the component inside the charger. Figure 2: Two of broken capacitor Figure above shows internal component of charger. input supply are from left side which will pass through some important component like rectifier, capacitors, inductors and transformer (part of converter and filter). AC supply power are converted to DC supply ...

LG 32LC56 LCD TV: CANNOT SWITCH ON AND HOW TO FIX IT

I remembered purchased this old tv back in year 2007 in Nottingham. Been using this tv since then. But suddenly before end 2016, this tv has stop working. Model of this tv is LG 32LC56 32 inch tv. The problem was, I am not able to turn on this tv. no power at all. Have check the fuse on the plug, the continuity on the cable between plug to the tv also ok. so, the culprit is in the tv..no the cable or supply. One of the common problem with 'no power' problem is due to the power supply board and usually damaged fuse or broken capacitor. So, it is worth looking for this analog / supply board first before throwing it out. In order to fix, one of the important thing that need to be done is to find the problem. Troubleshooting the problem is one of the basic thing that we need to do before repair or fix the appliances. And before we are able to troubleshoot the problem, we need to diassemble the appliance cover or casing, in this case is the TV. Below is sho...

Repair my Macbook Unibody (late 2009) 60W Magsafe charger

From October 2009, till now, I have fixed (maybe some of it cannot be called real repair) my Macbook countless of times on my own. These includes replace the screen due to the cracked, changing/repalced my hard drive many times, replace and also upgrade memory RAM, and most of it are the Magsafe charger. Power supply detail: ADP-60AD 60W P Supply Use for Macbook white late 2009 I am not sure why, but, my magsafe always have thermal dissipation problem and generate heat more than it should when in use. Magnetic connector that attached to the Macbook  get warmer/hotter when I am charging for hours during the longer usage. Even, the magsafe converter (big white square thing) sometimes getting hot too. magnetic connector separated from supply cable due to excessive heat. magnetic connector and pins separated from cable by remove two lock pins,  plastic that hold supply pins can be detached supply pins plastic holder detached from magnetic connector....

ACER ASPIRE IDEA 500 POWER SUPPLY PROBLEM (FSP120-40GLS)

Hi, its has been 3 years that my acer aspire idea 500 power supply broken (not working). since the replacement power supply is difficult to find in here (Malaysia), I have to modified the supply cable on the connector to match my aspire idea power supply (PS). old bulky PS aspire idea with old PS which sits outside my media center  the original replacement is about £50 now at UK..While, here in my home country, no chance to find it. so, I have to find alternative way to make my idea 500 working.  one way was to use old power supply (twice the size of its original PS) and rearrange it cables to PS connector to suit the idea 500 supply. That was done (and working) 3 years ago. these pins used for removing the cable from old PS connector for rearrangement Recently, I managed to get some courage to open my dusty aspire idea 500 original PS casing to find out the source of the problem. 120W original aspire idea 500 PS model FSP120-40GLS  ...