Philips S37SD-YD02 Service Manual page 63

8.5 Alignments 42" SD v4
1. Get Pattern to be Full White (jumper CN2012 on Logic Brd)
2. Check the waveform using an Oscilloscope.
• Triggering through V_TOGG of LOGIC Board.
• Connect the OUT 240 Test Point at the centre of
Y_buffer to other channel, and then check the first aid-
reset waveform from the last sustain of 1TV-Field.
Figure 8-29 Potmeter locations
Figure 8-30 Wave form adjustment (Y-Main board)
Alignments
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SDI PDP
• Check the waveform as before by adjusting Horizontal
Division.
Check the Reset waveform when the V_TOGG Level
is changed.
• Adjust the flat time of the rising ramp to 60µs with
VR5001.
• Adjust the flat time of the falling ramp to 80µs with
VR5003.
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8. EN 63
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