Tuesday, February 26, 2013

SHARP 28JF74H - SERVICE MODE - ADJUSTMENTS



TO ENTER SERVICE MODE
  1. Connect a test pattern to the antenna termianal.
  2. Tune the receiver to this signal.
  3. Turn the recevier off using the main switch.
  4. Press 'Volume Dn' and 'Channel Up' buttons on the front of the receiver simultaneously.
  5. Keeping these buttons pressed, turn the mains on.
  6. When the set starts up, it will be in service mode.
  • Use channel up and down buttons to move between the options.
  • Use the volume up and down buttons to change the data.
  • Use standby button on the remote control to store the adjusted data into memory.
  • Turn the receiver off, to exit service mode.
When in service mode, the display will be
=====================================
               SERVICE SOFTWARE
Sw on: XXXX  Sw off:  XXXX  Hours On: XXXX
=====================================
The figures displayed in the XXXX locations are hexadecimal representations of the number of times that particular function has been executed.  For example, the hexadecimal number displayed after SW ON was 0E4A, this would correspond to the receiver being turned on 3658 times.

Note:  The receiver should be set to full mode before carrying out any geometry adjustments.  This can be achieved by pressing the 'wide screen' mode button on the remote control until 'Full Mode' appears on the OSD.  This can only be done out of service mode.
Just in the case the TV set requires a full geometry adjustment, proceed first with the Vertical, and after that adjust the horizontal parameters.