18
2. Color Wheel Delay Alignment
Equipment:
Battery Biased Silicon PIN Detector
Oscilloscope
Probe
Procedure:
1. Probe impedance matches 50 ohm
2. Open Factory OSD, and select color wheel delay item
3. Leave the image pure red (DMD red curtain)
4. Put the detector on the screen that red image was projected.
5. Watch the oscilloscope and notice the square waveform
6. Use the
and
key to increment or decrement the color wheel delay value
7. No matter the waveform is square or not, let the waveform was lagged first
8. Then increment or decrement the value to let the waveform to be square
9. Do not adjust too much, let the signal get ahead, if it happens, go back to step 7
and do it again.
10. Change the input to pure blue and repeat the above procedures again.
3. PC Color Alignment Procedure
Equipment:
Pattern generator
Procedure:
1. Connect power, D-sub, into projector.
2. Change pattern generator to pattern 43 5-DISC.
3. Light on projector90
4. Enter factory mode.
5. Choose ADC Brightness item to Press.
6. Choose ADC Contrast item to Press.
7. Change pattern generator to pattern 32 gray bar.
8. See if any gray level was abnormal, if the abnormality happened, went back to
step 4 and then redid it again.
9. Quit factory mode, after above adjustments finished.
Lag
Exact
Ahead
Содержание RD-JT51
Страница 13: ...13 2 JT50 52 ...
Страница 14: ...14 7 Packaging Description 1 JT51 ...
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Страница 16: ...16 8 Appearance Description ...
Страница 53: ...ëí 5 PFC BOARD 6 DC DC BOARD ...
Страница 54: ...ëì JT50 52 1 Final Assembly Trouble Shooting Guide ...
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Страница 56: ...ëê 2 Engine Assembly Trouble Shooting Guide ...
Страница 58: ...ëè 4 Power Supply Trouble Shooting Guide PFC BOARD DX850 DC DC BOARD ...
Страница 59: ...5ç 5 DMD Block Trouble Shooting Guide ...
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Страница 74: ...éì Step 7 Download finished Step 8 Turn off the power switch ...
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