REPAIRING AND NOT THROWING AWAY

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 !

Thursday 14 March 2019

LG & AKIRA - CT-29K36ET- SMPS (POWER SUPPLY) - AUDIO OUTPUT - SCHEMATIC [CIRCUIT DIAGRAM] - HOW TO ENTER SERVICE MODE

LG & AKIRA - CT-29K36ET- SMPS (Power Supply) - AUDIO OUTPUT - SCHEMATIC [Circuit Diagram] - HOW TO ENTER SERVICE MODE


STR-6656 – LTV817M – SE115N – LA4282
SMPS SCHEMATIC.
CLICK ON THE SCHEMATICS TO ZOOM IN
How to enter into the Line Service Mode with a Remote control.
  • Power off.
  • Press the Red button.
  • Press the Green button.
  • Press the Yellow button.
  • Press the Cyan button.
  • Press the OK button.
  • Power On
Preparation for Deflection Adjustment
  1. At SVC mode, press the Yellow colored button the SVC remocon.  And then, deflection data adjustment OSD(SVC2 mode) will be displayed.
  2. Press Channel UP/DOWN button for desirous function Adjustment.
  3. Press Volume UP/DOWN button to adjust the data.
  4. Tune the TV set to receive a PAL B/G Digital pattern.
VL (Vertical Linearity)
Adjust so that the boundary line between upper and lower half is in accord with geometric horizontal center of the CPT.
VA (Vertical Amplitude)
Adjust so that the circle of a digital circle pattern may be located within the effective screen of the CPT.
SC (Vertical OSO Correction)
Adjust so that all distance between each horizontal lines are to be the same.
VS (Vertical Shift)
Adjust so that the horizontal center line of a digital circle pattern is in accord with geometric horizontal center of the CPT.
HS (Horizontal Shift)
Adjust so that the vertical center line of a digital circle pattern is in accord with geometric vertical center of the CPT.
EW (Horizontal Width)
Adjust to that a digital circle pattern looks like exact circle.
EP (East-west Parabola)
Adjust so that middle portion of the outermost left and right vertical line looks like parallel with vertical lines of the CPT.
EC (East-west Corner)
Adjust so that the vertical line at every 4 corners of the screen looks like parallel with the vertical lines of the CPT.
ET (East-west Trapezium)
Adjust to make the length of top horizontal line same with it of the bottom horizontal line.
POP (POP Position)
Adjust until the distance between POP and main picture becomes about 1mm.
Posted By: FRANK at 05:46
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