Monday, December 10, 2012

HITACHI - 42PD8500TA_SERVICE MODE_ ADJUSTMENTS_RECOVER FUNCTIONS




HOW TO GET TO ADJUSTMENT MODE
  • Using the front control buttons with the set turned off (standby) can activate it.
  • Press the SUB-POWER button, INPUT SELECT button and button at the same time, and hold for more than 5 seconds.
  • The set turns on in adjustment mode with OSD.
CHANGING DATA AND SELECTING ADJUSTMENT CODE
  1. When the set is in adjustment mode, the cursor Left / Right; Up / Dn and OK buttons of the remote control or front panel may be used as the adjustment keys.
  2. Up / Dn buttons are used for selecting adjustment code.
  3. Left / Rightbuttons are used for changing data values.
  4. OK button is used for confirming the data.
  5. After finishing the necessary adjustment press MENU button. Adjustment mode is released and the set returns to normal condition
MEMORY INITIALIZE OPERATION
NOTE: The execution of this function returns the adjustment codes to the preset values, therefore, adjustment data will be lost.
Procedure
  • Enter Adjustment Mode.
  • Select MEMORY INIT adjustment code (No.658) and change the data value from 0 to 1.
  •  Activate MEMORY INIT by pressing OK button for more than 3 seconds.
  •  Select No.525 and change data value from 1 to 0.
  • Check that the receiving channel goes to P1. Unit is set to preset value.
HOW TO RECOVER REMOTE AND FRONT KEY FUNCTION
  • If remote and front key cannot operate after miss set special function by front keys, these functions can recover by below method.
  • Press the SUB-POWER button, INPUT SELECT button and button at the same time, and hold for more than 5 seconds.  The set turns on the service menu mode.
  • Select No.535 and data set from [0] to [1].
Or
  • Press the SUB-POWER button and button at the same time, and hold for more than 5 seconds.
HOW TO GET TO BURN-IN MODE

This mode displays the test patterns of some single color raster in turn. These signals are from built-in generator of PDP panel. So it can be presumed that maybe the panel has some trouble when the screen of Burn-in mode is abnormal.
Using the front control buttons with the set turned off (standby) can activate this mode.

Press the SUB-POWER button, INPUT SELECT button and VOLUME DOWN button at the same time, and hold for more than 5 seconds.  The set turns on with single color raster and the OSD of [BURN IN: ON].

To escape from this mode, press the SUB-POWER button, INPUT SELECT button and button at the same time, and hold for more than 5 seconds. Burn-in mode will be released.