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

RCA - ITC 222 SERVICE MODE AND ADJUSTMENTS

RCA - ITC 222 SERVICE MODE AND ADJUSTMENTS

RCA R52WH74
MOST OF THE ALIGNMENTS FOR THIS CHASSIS ARE SOFTWARE DRIVEN.  
ENTERING INTO SERVICE MODE

  1. Press and Release the 'Power" button to turn the instrument "OFF".
  2. Wait 10 seconds before trying to enter the Field Service Mode.
  3. Press and Hold the "Volume Dn" & "Channel Dn" buttons for at least 8 seconds.  
  4. The TV will switch ON, and come up with the Field Service Main Menu on the screen.
The display will look like:
---------------------------------------------------------------------------------------------------------------
Soft-Ver                                ITC222_V100-0                                                000046:37
DVD Soft-Ver.                     3.12
Config.                                  W -- V -- P              Serial-No                       AMN456789

QUIT
TUBE
CHASSIS SETUP
GEOMETRY
VIDEO
EVENT HISTORY
SOUND
MISCELLANEOUS
CONVERGENCE
DVD

UP                                                            DOWN                                              <  >  SELECT
----------------------------------------------------------------------------------------------------------------------

The 'Channel Up & Channel Dn' buttons on the front panel are used to naavigate up and down in the menu.
The 'Volume Up & Volume Dn' buttons on the front panel are used to select a menu item, or decrease or increase a value in the selection list.

Before the Field Service Mode is excited; check store (or) all changes to alignments will be lost.

  • The remote control also can be used to navigate the Field Service Mode.  
  • Clear Button:  When this button is pressed the Field Service Mode disappears and the every-day TV functions are available.  
  • Menu Button:  To re-enter the Field Service Mode, make a 'Long Press' on the Menu button.  
  • Up Button:  This button is used to navigate 'Up' in the menu.
  • Dn Button:  This button is used to navigate 'Dn' in the menu
  • <:  This button is used to select a menu item, to decrease a value or to select the previous value in a selection list.
  • >:  This button is used to select a menu item, to increase a value or select the next value in a selection list.
MAIN MENU
  • Soft-ver => Displays the current software version.
  • Run time Counter => Displays the total run time in hours and minutes.
  • DVD-Soft-Ver;  => For DVD models only, displays the current software version.
  • Config:  Displays the configuration code of the instrument.  Each character represents a particular hardware feature on option.
  • Serial-No:  Displays the serial number of the instrument.
Common features found in the sub menus:
  • Return:  The sub-menu is closed and the main Field Service Mode menu is appeared on the screen.
  • Defaults:  The default values for the current menu are copied from ROM to RAM.
NB:  If default is checked, a complete realignment of that particular menu is required. 
  • Store:  All current values from a menu group are stored into memory.
  • Restore:  The last stored settings of the menu displayed are copied from NVM to RAM.
TUBE TYPE MENU
  1. Select the correct tube type from the pulled down list on the right hand side of the menu. (this will activate new tube types values along with default video and geometry parameters).
  2. Check Store to save new parameters in memory.
Posted By: FRANK at 02:35
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