Instructions
Installation And Commissioning#
This screen has a higher transmittance than the previous DXQ-608 mono screen. The exposure time needs to be reduced when printing. The parameters we have tested are 2s Exposure Time and 25s Bottom Exposure Time.
PJ 608-X04#
Download FPGA File For V2 V3 boardBefore using this screen, please update the corresponding firmware according to the motherboard model.
Print the FPGA firmware(.CBD file).
If your current firmware is not version 4.4, this requires updating the update file in the firmware package.
Mars 2 and Mars 2 Pro is the V2 board.

V2 board Firmware information displayed on the touchscreen after update.

Cearlity LD-002H is V3 board.

Ensure your Voxelab Proxima has a V3 motherboard before buying a screen, as it no longer uses V3 motherboards.
V3 board Firmware information displayed on the touchscreen after update.

PJ 608-X03#
Download Firmware For Photon Mono/ Mono SE1. Before you install the screen, you need to remove the protective film on the front and back of the screen.

2. Please ensure that the wiring to the motherboard is not loose.

For Mono SE you need this screen to work with the original adaptor.

Troubleshooting#
Blank Exposure#
When the screen is subjected to an exposure test, the entire screen appears blank. Possible causes of general exposure anomalies are cabling, firmware, motherboard, and the screen itself.

1. Cable
Check that the wires are correct and secure. Check the connector to the motherboard for foreign objects. The problem was solved after the individual user reinserted the plug.
When replacing a screen, ensure that the environment in which it is being replaced is tidy and that it is handled with care. Avoid resin or other foreign objects entering the screen connector and damage to the screen due to improper handling.
2. Firmware
If the printer is using a ChiTu board, you can check if the motherboard firmware matches the screen. If you are using a PJ 6.08 mono screen, the resolution displayed on the printer information screen should be 1620x2560/F9.18 or 1620x2560/F11.18.
V2 board is 1620x2560/F9.18.

V3 board is 1620x2560/F11.18.

3. Motherboard
If the printer is using a ChiTu board, you can check that LED D2 on the motherboard lights up properly. If D2 does not light up, it is the motherboard's problem.

The LED D2 is usually near the LCD connector.
If behind ruling out the above three points, the screen is still blank when exposed. Then the odds are that the screen is the problem.
Stripes And Flickering#
If streaks and flickering appear after the screen is installed, this is due to damaged screen components.

Overexposure Issue#
Some printers have problems with excessive light intensity from the light source. In addition, the light transmission of the Mono screen is higher than that of the original RGB screen. This leads to excess curing on the bottom layer after using the upgrade kit.

You can reduce the light intensity when printing by using CHITUBOX to reduce the PWM duty cycle.
To set the PWM of the printer on CHITUBOX after the upgrade, follow these instructions:
1. Download the Machine parameters-PWM.gcode > Print this file to enable the PWM function
2. Download the .cfg file of the upgrade kit.
3. Open CHITUBOX > Click Settings > Add new printer > Select Default > Import Profile > Select the printer's .cfg file > Open
4. Advanced > Reduces the PWM duty cycle to below 100%
5. You need to save the file in .ctb format. After replacing the motherboard, the printer only supports slice files in .ctb format.

The light intensity during printing is reduced by the above operation. Although the change may not be visible to the naked eye, it does decrease. The graph below shows the light intensity measured with the UV meter at PWM duty cycles of 100, 80, and 60.

The above method is only applicable to ChiTu Board.