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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 13 February 2019

SAMSUNG - WS 32Z316VBXXEC SERVICE MODE ADJUSTMENTS CTV FOCUS SCREEN ADJUSTMENT

SAMSUNG - WS 32Z316VBXXEC SERVICE MODE ADJUSTMENTS CTV FOCUS SCREEN ADJUSTMENT

                                            
      WHEN REPLACING SYSTEM BOARD
  • Since software is loaded into flash memory of the system board, check the version of the software after replacing the board.  To check the version of the software, enter Service Mode, press the key on the remote control according to the following sequence.
  • In standby status:  Info => Menu => Mute => Power On.
  • The software information will be displayed below the OSD menu
For example:  T_OZPEU_1000 refers to 
                         "OZ Basic Model, Europe. Ver.1000.

     Since the settings including channel information, deflection etc: are saved to the nvRAM, reconfigure these settings, when replacing the system board.
  • When replacing the Deflection board:  Tilt adjustment, Focus adjustment, Screen voltage settings, and W/B adjustment are all required.
  • When replacing Power board, no adjustments necessary.
  •  When replacing CRT assembly, no adjustments required.
  • When replacing front panel master power switch, no adjustment necessary.
  • When replacing side AV, no adjustments required.
  • When replacing control switch, no adjustments necessary.
ADJUSTING THE PICTURE SIZE
Since the S62A chassis has the deflection settings data, within the factory data, the picture size has to be adjusted when replacing the system board or the deflection board. 
Steps: 
Display the Lion Pattern.
 Press " Info => Menu => Mute => Power On" by remote control to enter Service Mode.
Enter Deflection Mode
Adjust the V-Amp, V-Shift, H-Amp & H-Shift items, so that the width becomes [5] & height becomes [4].
ADJUSTING PICTURE STRAIGHT LINES
Display the Cross-Hatch pattern.
Adjust settings other than V-amp, V-shift, H-Amp and H-Shift, so that the straight lines are displayed without curve.
Adjust the 'Bow' and 'Angle' settings so that the center line becomes a straight line.
Adjust H-Parabola & H-Trapezium settings, so that the Left and the Right lines becomes straight.
Adjust Upper corner and Low corner settings so that the end of the lines become straight.
Adjust V-Linearity and V-SC settings so that the intervals of the horizontal lines become uniform.
When adjustments are complete, display the Lion Pattern, and check that the picture size has not been changed.  If there is no change, finish the adjustments.

                                                          System control board
                                                              Deflection board
:


 FOCUS ADJUSTMENT
     Since the S62A chassis a built in dynamic Focus Circuit, take care when adjusting Focus.  When the CRT PCB or CRT has been replaced, the focus has to be adjusted.
  • Display the cross hatch pattern.
  • Set the screen adjustment to "view as standard".
  • Turn the static focus VR clockwise to maximum postion.
  • Turn the dynamic focus VR counter clockwise to maximum position.
  • Slowly turn the Static Focus VR, counter clockwise so that the center vertical line is most clearly displayed.
SCREEN VOLTAGE ADJUSTMENT
  • Select "Info => Menu => Mute => Power On" to enter Service Mode.
  • Initialize all settings to the values appropriate to the corresponding model.
  • Display Toshiba pattern.
  • Using an oscilloscope, measure the size of RK, BK & GK to the pedestal level.
Adjust the Screen VR of FEB so that the highest point of pedestal  level is 175V.
                                                              CRT base Board
                                                            Deflection Board
Power supply Board.
The system board that controls various signals for video signals for video signal processing and product operations.
Circuit Description 
Audio Out Schematic
Audio Out PCB

Posted By: FRANK at 05:07
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