Philips PTV910 Service Manual page 29

- Line 14: "HUE"
Value indicates level at entry CSM.
- Line 15: "COLOR"
Value indicates level at entry CSM.
- Line 16: "BRIGHTNESS"
Value indicates level at entry CSM.
- Line 17: "CONTRAST"
Value indicates level at entry CSM.
- Line 18: "SPEAKERS"
Indicates is the Speakers are On or Off.
Convergence Procedures
The set should be warmed up for at least 20 minutes prior to making any Geometry or Convergence
adjustments.
A signal must be applied to the set while performing Convergence or Geometry alignments. This is
necessary to provide the correct horizontal and vertical sync to the Convergence panel. Failure to do so
will result in an out of convergence picture when signal is applied to the set.
The Serviced Technician should sit at least 5 to 10 feet from the front of the screen while doing
Convergence. Ensure that you are eye level with the area of the screen you are adjusting.
When performing Digital Convergence, the adjustments are interactive. A change in one quadrant will
affect adjacent areas of the screen. Several passes through the Convergence sequence may be
necessary. When doing Convergence, it is advised to follow the sequence pattern when going from on
adjustment location to another. Pressing the Right Cursor key will sequence the Icon through a preloaded
sequence.
When the Convergence error is small, a touch up Convergence will be all that is necessary. Do not adjust
Green Geometry while in this mode. A compete in-depth Convergence is required when the Small Signal
Module (SSM) or the Convergence Memory IC, has been replaced. If the SSB (Small Signal Board) or
the Large Signal Board (LSB) has been replaced, a complete in-depth Geometry should be completed
before Convergence is adjusted. The Geometry alignment should not be necessary if the SSB or LSB
have not been changed.
Screen Templates
When performing a complete in-depth Convergence alignment, a Screen Template is necessary to obtain
the correct Geometry. The correct Templates are listed below:
43 INCH ST4168
50 INCH ST4169
55 INCH ST4170
60 INCH ST4171
64 INCH ST4172
7615 Adjustments page 15