MEMORY INITIALIZATION
WARNING
- This should be done in extreme cases because, some I2C data will be reset as well.
- Before beginning write down the I2C data values for Horizontal Centering for Progressive and HD models [H-Pos] and Sub Bright [Sub Brt] data values. These data values will be changed during this process.
Memory INITIALIZATION should be done for the following symptoms.
SUB BRIGHT UNCORRECTED:
If the SUB BRIGHT is not corrected after Memory Initialization,
the picture will appear darker than before.
HORIZONTAL
CENTERING H-POSITION CHANGED:
If H-POSI data values
are not correct, a shadow or slight fold over may appear on the right hand side
of the screen. When the Digital Convergence Grid is turned on, the fold over
will be seen on the right side.
DO
NOT attempt
to correct via convergence adjustments.
Re-enter the correct data values for the adjustment H POSI (in progressive and
in HD models).
INSTRUCTIONS TO ACCESS THE SERVICE MENU, AND VIEW THE I2C DATA VALUES.
- The Set should be OFF.
- Press and hold the INPUT button on the front panel, continue to hold this button Down.
- Then press the POWER button. The Service Menu (I2C) will appear on the screen.
- To scroll through the Menu use the Up and Down Cursor Keys and/or the Menu button.
- To go through Service Menu by category, press the Menu button on Front Panel. Remember, this will not cycle through each page, but each category.
- To Adjust Data Values, use the Cursor Left and Right Keys.
- To Exit Menu, press Input button on Front Panel.
To
access the Sub
Brightness adjustment,
enter the Service Menu and the first menu selection is [SUB BRT], hi-light [SUB BRT] and then press the
Right cursor key. The screen will go dark and SUB BRT and the Data Value will appear. Write down the
data Value. (Example
average data value is 3F).
To
access the Horizontal
Position adjustment
for Progressive, enter the Service
Menu and go to Page 2, the first menu selection on Page 2 is [H-POSI], write down the
data Value. Example
average data value is 3F).
To access the Horizontal Position
adjustment
for HD, input an HD signal and
enter the Service Menu and go to Page 2, the first
menu selection on Page 2 is [H-POSI], write down the data Value. (Example
averagedata value is 43).
There
are two ways to perform MEMORY INITIALIZATION. One Mechanically and one via the
Service Menu. Both will perform the same function.
MEMORY INITIALIZATION VIA SERVICE MENU.
- The Set should be OFF.
- Press and hold the INPUT button on the front panel, continue to hold this button Down.
- Then press the POWER button. The Service Menu (I2C) will appear on the screen.
- Scroll to the bottom using the Cursor Down button and highlight MEM INIT. WARNING: Be sure to write down the SUB BRIT, H POSI (in progressive and in HD modes) data values before performing the next step.
- To activate Memory Initialization use the Cursor Right Key.
- Re-Enter the Data Values for H POSI (in progressive and for HD modes).
- To Exit Menu, press Input button on Front Panel.
Another
Reset selection is FACTORY
RESET.
This will reset the Television to the Factory original settings. This DOES NOT reset I2C data values.
WARNING:
DEFLECTION RESET [Def
Reset], WILL
reset
the H
POSI (progressive
and HD modes) I2C data values. Be
sure to write these values down before attempting to perform a Deflection Reset.
MEMORY INITIALIZATION PERFORMED MECHANICALLY
Be sure to write down
the SUB
BRIGHT and HD POSI (in
progressive and in HD modes) I2C
data values before performing this
procedure.
All customers' Auto
Programming and Set-Ups are returned to Factory Settings. SUB BRIGHT, H POSI (in progressive and
in HD modes) I2C data values will NOT BE CORRECT after Memory
Initialization. Write down the values before Initializing.
- Disconnect Power to Television.
- Remove the Back Cover.
- Remove the two screws holding the Main chassis to the Cabinet if necessary.
- Disconnect wiring harness clips to free up the chassis if necessary.
- Reconnect Power to the Television and turn the set ON.
- Locate PP1 and add a jumper between pins 1 and 2 of the PP1 connector as shown below.
- Hold jumper in place for 5 seconds. (A beep will NOT be heard).
- Remove the jumper.
Confirm EEPROM reset,
Input source is now set to Air and not to Cable 1 or 2. No Child Lock, and only
channels 2 through 13 are in memory.
Reassemble Chassis and
reinstall PTV back. Set is now ready to operate.
Re-enter the correct
values recorded before performing this procedure for SUB BRIGHT, H POSI in progressive and HD
modes.
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