TH-K2AT/K2E/K2ET

DISASSEMBLY FOR REPAIR

Special care and attention required for assembly

1. Gluing to the key top (MIC element section)

You must also glue on the speaker storage area and heap the glue up until wealthy glued on the speaker storage area and the key top for waterproofing the MIC element side of the key top. (Fig. 1)

Heap the glue up until wealthy glued on the speaker storage area and the key top (MIC element section).

(2)By pressing the LCD hardware fixture from the component side of the TX-RX PCB, you must bent all 4 tabs of the LCD hardware fixture being visible from the foil side until the bases of each tabs are folded at least 45 degrees (Fig. 3). If the bending angle of the tabs of the LCD hardware fixture is less than 45 degrees, a display error may occur.

Min 45 degrees

Bending position

NG

 

NG

Fig. 1

2.Bending the LCD hardware fixture (J21-8456-03) tabs

(1)Insert the tabs of the LCD hardware fixture into four holes in the LCD installing position of the TX-RX PCB (TX-RX unit A/3). (Fig. 2)

Fig. 2

Fig. 3

3. PTT PCB (TX-RX unit C/3) installation procedure

Installing the PTT PCB on the TX-RX PCB and chassis are as follows:

(1)Insert the PTT PCB connector (CN7) into the TX-RX PCB connector (CN6) lightly.

(2)Push three parts of the PTT PCB to contact tightly with the chassis. There may be a small gap between the connectors. (Fig. 4)

Note: A double-side adhesive tape (J99-0376-04) is used behind the PTT switch. When reassembling the PTT PCB to the chassis, press the PTT PCB (under the PTT switch) so that the tape hold the PCB and chassis securely.

 

PTT PCB (C/3)

 

Chassis

CN6

 

 

OK

 

A bit

 

 

clearance

 

PTT switch

CN7

 

 

 

Push three parts of the PTT PCB

 

to contact tightly with the chassis.

 

PTT PCB (C/3)

 

Chassis

CN6

NG

 

 

No

 

 

 

 

clearance

 

PTT switch

CN7

 

 

Fig. 4

(3)Tighten one screw in the PTT PCB.

4