Philips S37SD-YD02 Service Manual page 64

EN 64 8.
8.6 Alignments 42" HD 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.
• Check the waveform as before by adjusting Horizontal
Division.
Check the Reset waveform when the V_TOGG Level
is changed.
• Set the 15V by adjusting VR5002.
• Set the 100V and 50us by adjusting VR5001
Figure 8-31 1st subfield from the last sustain within 1 frame
Figure 8-32 Rising ramp of aid-reset
Figure 8-33 Falling ramp of aid-reset
SDI PDP Alignments
F_14991_023.eps
F_14991_024.eps
030805
F_14991_025.eps
030805
030805
VR5001 Adjustment : Risi
VR5002 Adjustment : Falling ramp(Yfr)
LJ92 - 01200A
Figure 8-34 Potmeter locations
1 2 3
Figure 8-35 DIP switch mode: Internal
1 2 3
Figure 8-36 DIP switch mode: External
ng ramp(Yrr)
F_14991_026.eps
160206
4
4