Tuesday, March 19, 2013

SANYO PLC XW20 - PLC SW20 - SERVICE MODE - SERVICE ADJUSTMENTS - FLICKER REDUCTION & ELECTRICAL ADJUSTMENTS




TO ENTER SERVICE MODE  [Click on image to Enlarge]

  • To enter service mode press the "MENU" and "IMAGE" buttons on the projector simultaneously and hold for 2 seconds. As shown in a figure, a service mode display appears on a screen.
Adjustment
Adjust service data using the following control buttons.
  • "POINT UP"   à   An item number increases.
  • "POINT DOWN"  à  An item number decreases.
  • "POINT RIGHT"  à   An adjustment value increases.  "VOLUME+"
  • "POINT LEFT"  à  An adjustment value decreases.  "VOLUME - "
To exit service mode
  • Press the "POWER on/off" button only once on the projector or remote control unit to quit the service mode.
LOCATION OF TEST POINT AND VR
SERVICE MODE ADJUSTMENT MENU
ELECTRICAL ADJUSTMENTS
Fan driving voltage adjustment
Equipment Digital voltmeter.
Test point TP66A
  • Enter the Service mode.
  • Set the item no. to [50] by pressing the Point up or down button.  Set the data value to [1] by pressing the Volume + or -button.
  • Set the item no. to [67]. Set the data value to [1].
  • Adjust the voltages of TP66A to 8.4 ± 0.1 V-DC by the VR5601.
  • Set the item no. to [50]. Set the data value to [0].
  • Set the item no. to [67]. Set the data value to [1].
NRS adjustments
Equipment Oscilloscope
Test Point TP-NRS1
  • Input mode Computer
  • Input Signal 16 step gray scale signal
  • Enter the Service mode.
  • Adjust values of below items by the Volume + or - buttons.
Signal center DC adjustments
Equipment Digital voltmeter.
  • Input mode Computer
  • Input Signal 16 step gray scale signal
  • Enter the Service mode.
  • Adjust each values of below test point to be minimum amplitude by the Volume + or - buttons.