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

Thursday 7 February 2019

SONY HCD-EX1 COMPACT COMPONENT SYSTEM – SMPS AND POWER AMPLIFIER CIRCUIT DIAGRAM

Sony HCD-EX1 COMPACT COMPONENT SYSTEM – SMPS and Power Amplifier Circuit Diagram

HOW TO ADJUST THE CAM PHASE

Insert the cam so that the boss touches the SW lever at the left shown in the figure.

Rotate the cam in the arrow direction, and adjust the phase until the boss touches the SW lever shown in the figure.

With the phase adjusted, attach the parts using the following procedure.

STEP1: Insert the boss of the slider (3) in the groove of the cam.

STEP2: Set the mecha cover to the groove on the slider (3) and attach.

STEP3: Insert the boss of the lever (1) in the hole of the slider (3) and attach.

STEP4: While bending the slider (2) slightly in the arrow direction, insert it in the groove of the guides (L) and (R) and attach.

LCD All Lit and Key Check Mode

1. While pressing the FUNCTION button and >|| button, connect the power plug to the outlet.

2. When the test mode is set, the characters “STEP” are displayed on the LCD.

3. While pressing the DISPLAY button, press the >|| button. The whole LCD lights up.

4. Each time the FUNCTION button is pressed, the display switches between all lit n partial lighting 1 n partial lighting 2 n all lit.

5. When the Stop button is pressed, “KEY 0” is displayed and the key check mode is set.

6. Each time the button is pressed, the counter counts up. Buttons once pressed will not be counted when pressed again.

When all buttons have been pressed, “KEY OK” is displayed.

7. To end, press the Power button to turn OFF the power, and disconnect the power plug from the outlet.

Note: Pressing buttons other than those specified in steps 4 and 5 displays modes not used in servicing. In such cases, press the 1/u button to exit the mode, and repeat from step 3 again.

Aging Mode

The aging mode automatically repeats the operations of the CD.
When an error occurs:
Aging stops
When no error occurs:
Aging is performed repeatedly.

1. Set any CD. (One with a short playback time of the final track is recommended.)
2. While pressing the FUNCTION button and >|| button, connect the power plug to the outlet.
3. When the test mode is set, the characters “STEP” is displayed on the LCD.
4. When the >|| button is pressed while pressing the DISPLAY button, “AGING” will be displayed, and aging is performed in the
following sequence. While aging is performed, “REP” will be displayed blinking.
5. Pressing the DISPLAY button during aging displays the cycle number (@ CY where @ is the number of agings).
6. To end aging, press the Power button, turn OFF the power, and disconnect the power plug from the outlet.