Philips 55PP9401 Service Manual page 49

Cutoff (Screens) Adjustment
Adjustment Preparation
1. The preheat run should be completed.
2. Ensure that the Screen Color Temperature setting is in the Cool Mode.
3. Ambient (room) light should be minimal.
Adjustment Procedure
1. Enter the I 2 C Adjustment Mode. (With power off, press the SOURCE button on the front
panel, then press the POWER ON button, then release. The Service Menu will be displayed.)
2. Set R DRV (Cool) to midrange (data value 3F).
3. Set G DRV (Cool) to midrange (data value 3F).
4. Set R, G, and B Cutoff (Cool) data values each to 80.
5. Adjust the Screen VRs on the Focus Pack fully counterclockwise.
Focus Pack Diagram
6. Choose Service (item 1) of I 2 C Adjustment Mode. Press Cursor Right and the vertical will
collapse.
7. Adjust any Screen VR gradually until that particular color is barely visible.
8. Repeat for the other two colors.
9. Exit Service Mode by pressing Cursor Left on the remote control transmitter.
10. Exit the Service Menu by pressing the Menu key on the remote control transmitter.
7618 Service Adjustments page 18