Dpms - Hitachi 36SDX88B Service Manual

2.10.8 DPMS
Preparation for adjustment
(1) Set AC to 120*2V, 60Hz.
Adjustment procedure Notes
(2) Receive Cross-Hatch (I) Check picture, then check that the
signal of VGA3 on group 1 color of LED is green.
at PC mode.
(3) Remove Horizontal Sync. (2) Check that the high voltage of
deflection shuts down.
Heater voltage should be 6.3V+O.2V,
then the color of LED is orange.
(4) Remove Vertical Sync. (3) Check that high voltage of deflection
shuts down.
Check that heater voltage becomes
OV, then the color of LED becomes
orange.
(5) Remove Horizontal and
Vertical Sync.
(4) Check if High voltage of deflection
shuts down.
Check that heater voltage becomes
OV, then the color of LED becomes
orange.
(6) Re-input Horizontal or (5) Check that the set turns on after
Vertical sync in (3), (4), (5). re-input of Horizontal or Vertical
synchronous signal.
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