Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

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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Wednesday, 18 November 2020

SAMSUNG MX-F730, MODEL CODE MX-F730/ZD MINI-COMPACT SYSTEM MICOM INITIALIZATION, REGION CODE SETTING, ELECTRIC SCHEMATIC DIAGRAM

Operation of Power Block Protection Circuit

Cases of the SMPS Protection.
1) If there is over current at the AMP IC. (Speaker Wire Short)
2) If temperature of the AMP IC is over 150 ℃.
3) There is no power supply for amp.

Check AMP in Power Protection. [Do not connect the power cord during the test]

MICOM, MPEG Initialization & Update

MICOM Reset
During STANDBY mode, push the ‘STOP” Button 5 Seconds. If VFD blinking, reset is finished.
Micom Update (Only for Flash Micom)
Method 1) MAIN PCB UTCN1 for update JIG. To update MICOM, it need Computer, Rom Writer, USB Cables. Method 2) Insert USB Memory, and play. “Update” will be displayed. Set will be power off when finish.
Method 3) Insert Update DISC, and play. “Update” will be displayed. Set will be power off when finish.
Micom & MPEG Version Check
1) Power On.
2) CD open status.
3) Push the number NEXT for 5 seconds, check the MICOM version.
4) Push the number PREVIOUS for 5 seconds, check the MPEG version.
MPEG Update
1) Insert USB Memory or Update DISC which have Update file, and play. “Update” will be displayed.
2) When finish the Set will be power off → on automatically.
3) And then the Deck is automatically open.
MPEG Reset
1) During “No Disc” Displayed, push the stop Button 5 seconds. After displayed “INITIALIZE” set will power off automatically.

The inserting method of Region Code after replacing the Main PBA

[When replacing the Main PBA and System Micom should be inserted the region code.
The set is not working properly if you don't insert the region code.
The region code is inserted by the remote control.]

1) During “AUX” status.
MX-F730/F730CB : Push the “ENTER” button 10 Second.
MX-F730D : Push the “D” button (blue key) 10 Second.

2) When displayed ‘TEST”, import 46 to set the buyer.

3) When displayed ‘– – –’, import the buyer code.
The buyer setting code can find in the table named “MX-F7**- Option-Table”.

4) It will show the buyer that you set up. Then the buyer setting is succeed.