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 21 February 2019

JVC - LT 26WX84 How to enter SERVICE MODE LCD FLAT PANEL TV

JVC - LT 26WX84 How to enter SERVICE MODE LCD FLAT PANEL TV


TO ENTER SERVICE MODE      [Remote control: RM-C13G TV]

Ensure that the cursor of the Use Menu screen pointing at picture control.  Before entering the service mode, confirm that the settings of TV | CATV switch of the remote control unit is at the "TV' side, and the setting of VCR | DVD switch is at 'VCR" side.  If the  switches have not been properly set, it is impossible to enter into service mode.
  • Set to [0] minutes using 'Sleep Timer" key.
  • Press the 'Video Status" & "Display" keys simultaneously, to enter the Service Mode.
  • When the 'Man Menu' is displayed, press any key of (0) to (9) key to enter corresponding menu mode.  * Press any of the (0) to (9) keys before the service mode disappears.
  • Use [Ch Up] / [Ch Dn] keys to call an item to adjust.
  • Use [Vol Up] / [Vol Dn] keys to adjust the data value of selected item.
  • Press "Muting" key to Save the value.
  • Press [Back] key to [Exit] the service mode.
DESCRIPTION OF STATUS DISPLAY
_________________________________________________________________________________
                                             
                                                   NTSC  CINE   ST   L  FL   MUTE 

_________________________________________________________________________________

NTSC => SIGNAL SYSTEM
CINE => ASPECT | MULTI
ST => VIDEO STATUS
L => WHITE BALANCE
FL => IP CHANGING MODE
MUTE => MEMORY

ADJUSTMENT PREPARATION
  • Make the necessary adjustment for the unit with either the remote control or with the adjustment tools.
  • Adjustment with the remote control is made on the basis of initial setting values, however the new setting values which set the screen to its optimum condition may differ from the initial settings.
  • Make sure that AC power is turned On correctly.
  • Turn On the power for set and test equipment before use, and start the adjustment procedures after waiting at least 30 minute.
  • Unless otherwise specified, prepare the most suitable reception or input signal for adjustment.
  • Never touch any adjustment setting value which are not specified.

SERVICE MODE ITEMS
  1. Picture | sound => This sets the setting values of the Video | Audio and Deflection circuits.
  2. YC SEP => This is used when YC seperation circuit is adjusted.
  3. White Balance => This sets the setting values of White Balance (do not adjust).
  4. Memory Setup => This sets the values of memory address (do not adjust).
  5. RF AGC => This is used when the IF VCO is adjusted. (D not adjust).
  6. DD | CM => This sets the setting values of the panel image processing.
  7. Panel => This sets the values of the panel power limit control.
  8. PP => This sets the setting value of the output of Multi Piclture circuit.
  9. IP => This sets the setting value of the DIST circuit.  (Do not adjust).
  10. HDMI => This set the setting value of Digital input Module Circuit. (Do not adjust).
Posted By: FRANK at 04:19
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