REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday, 16 February 2019

TOSHIBA LAPTOP RESTARTING PROBLEM SOLVED (NEC CAPACITOR DAMAGED)

TOSHIBA LAPTOP RESTARTING PROBLEM SOLVED (NEC CAPACITOR DAMAGED).

Toshiba Laptop Repair, Satellite L300 / A300 Restarting Problem Solved.



The problem is very common in these models of notebooks (Toshiba satellite A300 and L300) freezes or restarts on AC power plug in.
It works on battery power and charges when power is connected on shutdown.

When it’s powered on with the AC plug connected may freeze when on, or remains on for a little while before freezing or restarts.




This should be done with a IR Soldering station, but can be also done with a Hot air station or Hot air gun.
1. Remove all the removable components from the motherboard like Ram, Wireless card, CPU etc.
2. Cover the surrounding area near the capacitor with aluminum foil and apply some flux paste (soldering paste) all around the capacitor.
3. Using a Hot air gun you can start to heath the capacitor and use a tweezers to touch it from the side. When it is moving that means that the soldering alloy reached the melting point.
4. Remove the bad cap with a Suction pen, and apply the new capacitor in the same position as the old one all this under the Hot air gun flow.
Keep flowing for approximately 60 seconds after you placed the new capacitor to allow the solder alloy to re melt.
5.Let the motherboard for 30 minutes to cool down, after that make sure the capacitor it is perfectly welded on the board.
6. Reassemble the laptop for testing.


Another solution.
Use 4pcs 330uf 2.5v capacitor.


This picture will Help you to solder..