Service setups
DHD410S Service Manual
18
020-001481-01 Rev. 1 (10-2018)
6. Project the 256 Gray test pattern.
7. To ensure normal and sufficient color levels, set up the color index value by pressing the
Left
or
Right
button.
I/O port function test
Always perform the I/O port function test after repairing the main board, the light engine, or
upgrading the scalar firmware. If the performance is not normal, replace the main board or I/O
on page 77, and
Replacing the laser driver board
).
Running a HDMI port performance test
To verify the HDMI port functionality, conduct a performance test on the HDMI port.
To perform the HDMI port performance test, complete the following steps.
1. Connect the projector and DVD player using a 4K HDMI cable.
2. Switch the signal source to
HDMI
.
The image of DVD player is projected.
ID
Part name
Description
1
Test equipment
DVD player with HDMI output set to 16:9
2
Test signal
720p, 1080p, 4K
3
Inspection item
HDMI port performance test
4
Inspection distance
1.8 to 2.2 m
5
Criteria
No abnormal color performance, line distortion, or noise exist on the screen
Summary of Contents for DHD410S
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