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 !

Tuesday, 19 February 2019

VIEWSONIC - N4261W-1M - 42" LCD_ SERVICE MODE_ADJUSTMENTS-SERVICE HELP

VIEWSONIC - N4261W-1M - 42" LCD_ SERVICE MODE_ADJUSTMENTS-Service Help



TO START SERVICE MODE OPERATION

  1. Switch ON the TV and make sure that the TV mode is selected.
  2. press [9 > 9 > 1] by the remote control to enter the internal service menu.
  3. Press 'Menu' to switch the service mode pages.
  4. Press 'Up' | 'Dn' button to scroll through the various Menu Options.
  5. Press 'Right' | 'Left' button to change the Menu Settings.
  6. Press "Wide" to save to new settings into memory and to "EXIT".
TV | AV | S-VIDEO WHITE BALANCE, BRIGHTNESS, CONTRAST ADJUSTMENT

WHITE BALANCE ADJUSTMENT
  1. Press [9 > 9 > 1] by the remote to enter the Internal Service Menu.
  2. Press "Menu" to switch to the 'PW328' Scaler Menu Page.
  3. Press 'Up' | 'Dn' button to scroll to page 2-3 options.
  4. Press 'Left' | 'Right' to adjust the offset Red, Offset Blue, Gain Red, Gain Blue menu settings.
  5. Press "Wide" to save the new settings and to 'EXIT". 
Do not adjust other settings in page 3-2.
  1. Repeat the above mentioned step 1 to 2.
  2. Press 'Up' | 'Dn' to scroll to 'PW328 FE VDC Menu Page 2-1 options.
  3. Press 'Right' | 'Left' button to adjust the brightness setting.
  4. Press 'Up' | 'Dn' to scroll to TV / AV / S parameter = AV 1 setting and press 'Right Button' to run the setting.  This procedure will copy the settings of AV 1 to AV 2 & TV.
ATSC DTV WHITE BALANCE | BRIGHTNESS | CONTRAST ADJUSTMENT
  1. Repeat the above mentions steps 1&2.
  2. Press Up | Dn to scroll to 'PW328 Scaler Menu page 2-3 options.
  3. Press Right | Left to adjust the offset Red, offsets Blue, gain Red, gain Blue Menu settings.
  4. Press 'Wide' to save the settings and to 'EXIT'.
YCbCr & YpbPr of component 1,2  WHITE BALANCE | BRIGHTNESS | CONTRAST ADJUSTMENT.

Getting COMPONENT-1, connect to 1080i signal.  (The settings could not be saved if signals input from COMPONENT-2 or connect to other sources such as 720P, 480P, 480i ..etc)
  1. Repeat the above mentioned steps 1&2.
  2. Press Up | Dn to scroll to 'PE328 FE ADC' page 2-3 options.
  3. Press Right | Left to adjust the Offset Red, and Offset Blue settings.
  4. Press Right | Left to adjust Offset Green setting.
  5. Press Right | Left to adjust Gain Green setting.
  6. Press Up | Dn to scroll to 480i | 480P | 720P parameter = 1080i setting and press 'Right button' to run the setting.  This will copy the setting of 1080i to 480i | 480P | 720P.
  7. Press Up | Dn  to scroll to HD2 parameter = HD 1 and press 'Right' button to run the setting.  This will copy the setting of HD-1 to HD-2
  8. Press 'Wide" to save and 'EXIT'.


WHITE BALANCE ADJUSTMENT OF PC INPUT
  1. Connecting to VGA timing mode.
  2. under Service Mode, Press Up | Dn to scroll to 'PE328 FE ADC' page 2-2 options.
  3. Press Right | Left button to adjust the Offset Red, Offset Green and Off Blue settings.
  4. Press Right | Left to adjust the Gain Red and Gain Blue settings.
  5. Press 'Wide' to save and EXIT.
Posted By: FRANK at 05:45
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