Brother P-touch PT-2730 Service Manual page 50

(2) Set the main PCB ASSY to the PCB holder, and secure it with the two screws.
(3) Set the PCB holder to the upper cover, and secure it with the two screws.
NOTE: When assembling the PCB holder, be careful to handle the LCDM flat cable.
NOTE: When wiring, pass the lead wires through the guide as shown the below figure.
PCB holder
LCD module
ASSY leads
Guide groove
LCD module ASSY leads
Figure 3.1-34 Installing the Main PCB ASSY and the PCB Holder
Screw
Screw
Screws
Upper cover
III - 30
Main PCB ASSY
LCDM flat cable