I/O Port Function Test; Running A Hdmi Port Performance Test - Christie DHD410S Service Manual

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
board (see
Replacing the main board
).

Running a HDMI port performance test

To verify the HDMI port functionality, conduct a performance test on the HDMI port.
ID Part name
1 Test equipment
2 Test signal
3 Inspection item
4 Inspection distance
5 Criteria
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.
DHD410S Service Manual
020-001481-01 Rev. 1 (10-2018)
on page 77, and
Description
DVD player with HDMI output set to 16:9
720p, 1080p, 4K
HDMI port performance test
1.8 to 2.2 m
No abnormal color performance, line distortion, or noise exist on the screen
Replacing the laser driver board
Service setups
on page 82
18