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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Thursday 7 February 2019

TECHNICS SUX 933 – DIGITAL INTEGRATED AMPLIFIER – CIRCUIT DIAGRAM

Technics SUX 933 – Digital Integrated Amplifier – Circuit Diagram

Power output => 2 x 50W to 8 Ohms

POWER CONSUMPTION

For Great Britain and New Zealand => AC 50Hz/60Hz, 240V

For continental Europe => AC50Hz/60Hz, 220V

For others => Ac50Hz/60Hz, 110V/127V/240V

The protection circuitry may have operated if either of the following conditions are noticed:

* No sound is heard when the power is switched ON.

* Sound stops during a performance.

The function of this circuitry is to prevent circuitry damage, if for example, the positive and negative speaker connection wires are SHORTED, or if the speaker systems with an impedance less than the indicted rated impedance of this unit are used.

If this occurs, follow:

# Switch OFF the power.

# Determine the cause of the problem and correct it.

# Switch ON the power once again.

[When the protection circuitry functions, the unit will not operate unless the power is first switched OFF and then ON again.] BEFORE REPAIR

Turn off the power supply. Using a 10 Ohms, 5W resistor connect both ends of the power supply capacitors [C711, C712, 3300Uf] in order to discharge the voltage.

Before turning on the power supply, after completion of repair, slowly apply the primary voltage by using a power supply voltage controller to make sure that the consumed current at 50Hz/60Hz in NO SIGNAL mode should be shown with respect to supply voltage 110/127, 220/240.

SCHEMATIC [Circuit diagram] Full