Kenwood 144MHz FM TRANSCEIVER K2E - Manual (Page 2)

TH-K2AT/K2E/K2ET
2
DISASSEMBLY FOR REPAIR
How to remove the case assembly from the
chassis
1. Remove two screws ( z ) holding the chassis.
2. Pull out two knobs ( x ) and remove two round nuts ( c ).
3. Pull out the SP and MIC parts of the cap from jacks ( v ).
4. Turn the unit over with the bottom of the chassis facing
upwards, and remove the chassis ( n ) from the case
assembly ( b ).
5. Remove the speaker lead ( m ) from the connector (CN2) of
the TX-RX PC board (TX-RX unit A/3).
How to remove the PC board
■ Numeric key PC board (TX-RX unit B/3)
1. Remove three screws ( , ) on the numeric key PC board.
2. Lift the numeric key PC board and remove it from the
connector (CN9) of the TX-RX PC board ( . ).
■ PTT PC board (TX-RX unit C/3)
3. Remove one screw on the PTT PC board ( / ).
4. Pull the PTT PC board to the left and remove it from the
connector (CN6) of the TX-RX PC board (TX-RX unit A/3)
(
Ω ).
■ TX-RX PC board (TX-RX unit A/3)
5. Remove the SP/MIC jack cover ( ≈ ).
6. Remove two screws ( ç ) holding the shield
cover (antenna terminal section).
7. Remove two screws ( √ ) holding the shield
cover (final amplifier section).
8. Remove eight screws ( ∫ ) on the TX-RX PC
board.
9. Absorb solder from the antenna terminal ( ~ )
with a solder absorber.
Note: Do not melt the shadow plate ( µ ) when
moving the tip of the solder absorber close
to the antenna terminal.
10. Remove the TX-RX PC board from the chassis, then remove
the encoder volume FPC ( ≤ ) from the flat cable connector
of the TX-RX PC board.
CN2
CN9
CN6
x
x
c
c
v
m
b
,
,
.
ç
√
µ ∫
∫
∫
∫ ∫
Ω
/
∫
≈
~
≤
n
z
TX-RX unit (B/3)
TX-RX unit (C/3)
TX-RX unit (A/3)