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 !

Saturday, 23 February 2019

NEC - INTEGRA PLA50V1 PLASMA TV SERVICE MODE AND ADJUSTMENTS


NEC - INTEGRA PLA50V1 PLASMA TV SERVICE MODE AND ADJUSTMENTS



METHOD OF ADJUSTMENTS
  1. When PDP module is replaced, adjust the sections according to adjustning items 1 to 4 specified below.
  2. When power unit is replaced, adjust the section according to the adjusting items 1 to 3 specified below.
  3. When main PWB of the VIDEO PWB is replaced, adjust the sections according to adjusting item 4 specifed below.
  4. No adjustments are required in case of any replacements other than 1 and 2 above.
When PDP module is is exchanged, be sure to clear integrated time to "0" by following "How to clear the integrated time".

HOW TO CLEAR THE INTEGRATED TIME.
Assume the following factory mode by the using of remote control.  Press 'PROCEED' key 6 times to get the screen of "USAGE TIME",  In this state, the integrated time up to the present time is displayed.  
The integrated time is cleard to '0' when the remote control keys are pressed in the order of 'MUTE=>POSITION UP=>POSITION DOWN=>OFF TIMER'.

TO ENTER OR WITHDRAW FROM THE FACTORY SETTING MODE.
  • Press keys in sequential order of  
  • [OFF-TIMER=>EXIT=> MUTE=>OFF TIMER] 
WHEN A CONVECTIONAL REMOTE CONTROL IS USED
  • Press the keys in the sequential oreder of [OFF-TIMER => OK => MUTE => OFF TIMER]
  • All that time, use the Menu Key in place of 'Proceed" key.
ADJUSTMENT OF THE VIDEO SCREEN POSITION

  1. Enter an input of NTSC microscopic signal in the video input terminal.
  2. Select the 'Video' input by the use of relevant key on the remote control
  3. Enter the factory shipment mode by using factory shipment command of the remote.
  4. Press 'Proceed' key to obtain the [Position] screen.
  5. Press [Wide] key to select the [stadium] mode.  Stadium mode in the initial state.
  6. In case of any deviation from the display range of the PDP module, Press cursOr key 'Up' or 'Dn' of the remote control to select [MHPOS] or [MVPOS].  Press cursor key 'Right' of 'Left' for adjustments.
  7. Press cursor key Up or Dn of the remote to select [H-POS].
  8. Press cursor key Right or Left for adjustments so that the right and left are balanced.
  9. Press cursor key Up or Dn of the remote to select [V-POS].
  10. Press cursor key Left or Right of the remote for adjustment, so that the upper and lower are  balanced.
  11. Confirm that  [H-PHA] is maintained at '0'.
  12. Confirm that [H CLK] is maintained at '0'.
  13. In the same manner, press [Wide] key to select the 'Zoom' mode, the 'Normal' mode or the 'Full' mode.  Adjust the horizontal and vertical positions and confirm  that H-PHA and H CLK are maintained at '0', respectively.
  14. Change the input signal to PAL microscopic signal, and repeat the steps 4 to 14 above.
  15. Withdraw from Factory Mode.
ADJUSTMENT OF DVD/HD SCREEN POSITION

  1. Enter an input of HDTV monoscopic signal in the DVD/HD input terminal .  According to the 'convenient functional setting' in the 'Menu' screen, press cursor key Up of Dn of the remote control to confirm that [HD SELECT] has been set at [1035i].
  2. Select the HD input by the use of relevant key of the remote control.
  3. Enter the 'Factory Shipment' setting mode by using the factory shipment control command of the remote control.
  4. Press [PROCEED] key to obtain [POSITION] screen.
  5. In case of any deviation from the display range of the PDP module, press the cursor key Up or Dn on the remote control to select [MHPOS] or [MVPOS].  Press the cursor key Left or Right for adjustments.
  6. Press key Up or Dn of the remote control to select [H-POS].
  7. Press cursor key Right or Left for adjustment so that the right and left are balanced.
  8. Press cursor key Up or Dn of the remote control to select [V-POS].
  9. Press cursor key Right or Left for adjustment so that the upper or lower are balanced.
  10. Confirm that [H PHA] is maintained at '0'.
  11. Confirm that [H CLK] is maintained at '0'.
  12. Change the input video signal to NTSC  component signal, and repeat steps 3 to 11 of above.
  13. Change the input video signal to DTV1080i signal and repeat steps 3 to 11 above.
  14. Change the input video signal to the DTV1080i signal.  Press the cursor key Right or Left of the remote control to select [1080B] for [HDS] of the screen.  Repeat steps 3 to 11 above.  Return [HDS] to [1080i].
  15. Change the input video signal to the DTV 720P signal and repeat steps 3 to 11 above.
  16. Change the input video signal to the DTV 480P signal and repeat steps 3 to 11 above.
  17. Withdraw from the factory shipment setting mode
Posted By: FRANK at 04:33
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