Philips FM242, Руководство по обслуживанию

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Alignments EN 67 FM242 AA 8.
8. Alignments
Index of this chapter:
1.
General Alignment Conditions
2. Hardware Alignments
3. Software Alignments and Settings
Note: The Service Default Mode (SDM) and Service Alignment
Mode (SAM) are described in chapter “Service Modes”.
Menu navigation is done with the 'CURSOR UP, DOWN, LEFT
or RIGHT' keys of the remote control transmitter.
8.1 General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•
Mains voltage and frequency: 220 V
AC
/ 50 Hz unless
otherwise stated.
• Connect the set to the Mains via an isolation transformer.
• Allow the set to warm up for approximately 20 minutes.
• Measure the voltages and waveforms in relation to chassis
ground (with the exception of the voltages on the primary
side of the power supply). Never use the cooling fins/plates
as ground.
• Test probe: Ri > 10 M
Ω
, Ci < 2.5 pF.
• Use an isolated trimmer/screwdriver to perform the
alignments.
Use a VGA-generator or a Personal Computer (contact your
National Service Organisation for the necessary test pattern
files) as test pattern generator and connect it to the VGA1 input
of the FM242 plasma monitor. When you use a PC, start
Microsoft PowerPoint (or Paintbrush), and load the mentioned
file. Then display the picture as full screen.
8.2 Hardware Alignments
There no alignments needed, except in care the pdp has been
exchanged or the pdp-supply has been exchanged.
In that case the both must be matched.
Figure 8-1 Supply Alignment