Service manual

PIP AFC adjustment
Set the pattern generator (e.g., PM5418) to a color bar video signal and connect the RF
output to aerial input. Set amplitude to at least 1mV.
1. Connect a multimeter to the AFC output on pin 15 of IC 7914 (TDA9801).
2. Use potentiometer R3944 to adjust the AFC output to 2V6.
Software Alignments and Settings
General
With the software alignments of the Service Alignment Mode, the Geometry, White tone
and Tuner (IF) can be aligned. Put the set in the SAM mode (see chapter 5). The SAM
menu will now appear on the screen. Menu navigation is done with the 'CURSOR UP,
DOWN, LEFT or RIGHT” keys of the RC transmitter.
Geometry
Introduction
The geometry alignment menu contains several items to align the set, in order to obtain
correct picture geometry.
For all geometry alignments, use an external pattern generator with a geometry pattern
(e.g., crosshatch).
See figure below for the correct alignments.