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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Tuesday 26 February 2019

SAMSUNG DLP HLP 4663 HLP 5063 HLP 5663 HLP 6163 DMD BOARD FAILURE SYMPTOMS

SAMSUNG DLP HLP 4663 HLP 5063 HLP 5663 HLP 6163 DMD BOARD FAILURE SYMPTOMS


SAMSUNG DLP PROJECTION TV - HLP4663_HLP5063_HLP5663_HLP6163 [DMD BOARD FAULT AND SYMPTOMS]
  • When the unit is turned ON, picture will have vertical lines across the entire screen.  These lines can be black or white.
  • The unit will cycle three times and then goes to shut down, after three LED blinks => Monitor CN107, pin number 3 of DMD board for [4vpp].  This is "Ballast" drive signal.
  • Video lock-up either intermittent or immediate => DMD board is loading down the control bus.
  • No video and/or control functions, while audio is OK => DMD board is loading down the control bus.
  • Unable to turn the unit OFF or no control functions.  The set must be unplugged and plugged in again to power up the unit => DMD board is loading down the control bus.
  • Immediate shutdown after initial turn ON => DMD board is loading down the control bus.
  • Color wheel running slow => Bad DMD board can cause this fault.
  • Stuck pixels => The stuck pixels may display all white or all black.
  • Grainy picture to all modes => DMD board fault.
Check for any defective soldering on the DMD board, Control IC-DDP1011, causes most of these symptoms.  The DDP-1011 IC is a BGA (Ball Gate Array) type.  It is not repairable in the field.
ADJUSTMENTS AFTER DMD BOARD REPLACEMENT [TILT]
DMD board part number is [BP96-00678A]
There are two different DMD boards in production.  Older sets uses the Air Type Color Wheel, and newer sets uses the FDB color wheel.  FDB boards include a small jumper on the DVD board along with the label. Older units, with air bearing color wheel do not have this jumper. The new type board will have the jumper installed.  Remove this jumper, if the set under repair uses AIR type color wheel