Philips EBJ1.0U Service Manual page 136

EN 136 8.
8.4.5 GDE SAM
Specifications:
• Set display mode in service mode.
• Service blanking.
• Set geometry.
• Preset picture.
• Set white tone.
• Convergence disable for setting geometry.
The GDE SAM mode (GDE = Generic Display Engine), allows
the Service Technician to set Geometry and White Tone (Grey
Scale). This mode is controlled by the GDE microprocessor
located on the ACS module. These settings are stored in an
EEPROM, also located on the ACS module.
Adjustments for the 1080i should be done with an HD 1080i
signal applied to the set.
The Service Blanking selection (SERV BLANK) will blank the
bottom half of the picture. This selection is useful when
adjusting the Yokes to level the picture.
The Clamp Pulse should be set to Normal for an NTSC signal.
It should be set to HDTV for an HD signal.
The Convergence Processor selection will enable or disable
Convergence drive. Convergence should be disabled when
performing Cantering or Geometry alignments.
EBJ1.0U Alignments