Gather the needed materials for [AS-PR0118] touchscreen assembly:
Be sure that you are properly grounded before starting this assembly.
Carefully insert the [EL-MS0496] 5" Graphical LCD Touchscreen, 800x480, SPI, FT810, HY5-LCD-HD into the [PP-GP0385] LCD center. Be careful that the ribbon cable is inserted on the side with the gap in the LCD center.
The LCD touch screen should be a little tight but do not force it in to the lcd center.
Using the 4X [HD-BT0234] 316 Stainless Steel, Button Head - M3 x 0.5mm Thread, 10mm Long fasteners to mount the [PC-BD0117] Color_LCD_ Board CLCD2 Rev B to the [PP-IS0086] touchscreen back with inserts. The screws should be sticking out past the bottom of the LCD back.
Note that the top of the LCD board should line up with the top of the LCD back. This will ensure that the LCD ribbon cable properly lines up with the LCD board connector.
Carefully place the LCD stack with the ground foam against the fasteners that are sticking out from the bottom of the LCD back.
Using a fingernail, slide the gray tabs out from the connector so that the connector is now in a open state.
Slide the ribbon cable into the connector so that brass connections on the connector are fully concealed beneath the connector.
Push down on both gray tabs so that the connector is now in the closed state and the ribbon is fully secured.
When finished, slide the LCD assembly into the ESD bag that the touch screen originally was received in.
Plug the rainbow ribbon cable into the back of the LCD board into the bottom connection.
As you are turning on the device, hold your finger to the LCD display inorder to test the screen calibration. You should see it go gray for a second before going to the default screen with a message saying that it was unable to read a USB.
Make sure that the sound is functioning correctly by navigating to Menu -> About Printer. A short chime should play at this point indicating that the sound is working correctly.