Kenwood TH-K2AT Service Manual page 4

TH-K2AT/K2E/K2ET
Special care and attention required for assembly
1. Gluing to the key top (M IC element section)
You must also glue on the speaker storage area and heap
the glue up until w ealthy glued on the speaker storage area
and the key top for w aterproofing the M IC element side of
the key top. (Fig. 1)
Heap the glue up until w ealthy glued on the speaker
storage area and the key top (M IC element section).
2. Bending the LCD hardware fixture (J21-8456-03) tabs
(1)Insert the tabs of the LCD hardw are fixture into four holes
in the LCD installing position of the TX-RX PCB (TX-RX unit
A/3). (Fig. 2)
4
DISASSEM BLY FOR REPAIR
Fig. 1
Fig. 2
(2)By pressing the LCD hardw are fixture from the component
side of the TX-RX PCB, you must bent all 4 tabs of the LCD
hardw are 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 hardw are fixture
is less than 45 degrees, a display error may occur.
Bending position
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 follow s:
(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 w ith the
chassis. There may be a small gap betw een the connectors.
(Fig. 4)
Note: A double-side adhesive tape (J99-0376-04) is used
behind the PTT sw itch. When reassembling the PTT
PCB to the chassis, press the PTT PCB (under the PTT
sw itch) so that the tape hold the PCB and chassis
securely.
PTT PCB (C/3)
Chassis
OK
PTT sw itch
Push three parts of the PTT PCB
to contact tightly w ith the chassis.
PTT PCB (C/3)
Chassis
NG
PTT sw itch
Fig. 4
(3)Tighten one screw in the PTT PCB.
M in 45
degrees
NG
NG
CN6
A bit
clearance
CN7
CN6
No
clearance
CN7