Disassembly For Repair; Precautions For Disassembly; Removing The Mechanical Stopper; Removing The Tx-Rx Unit From The Chassis - Kenwood NX-320 Series Service Manual

NX-320

1. Precautions for Disassembly

■ Removing the selector knob and volume knob
1. Using a thin tool, insert it in the hole on the selector knob
side and push the knob spring. q
Note: When you push the knob spring, take care not to
damage the resin of the knob.
2. Lift and remove the selector knob w while pushing the
knob spring.
3. Repeat steps 1 and 2 for the volume knob, to remove the
volume knob e.
Note:
Perform the following procedures when installing the selec-
tor knob and volume knob.
1) Match the direction for the hole of the knob and the knob
spring.
2) Push the knob onto the knob spring until a click sounds.
■ Removing the selector knob spring and volume
knob spring
1. Lightly grasp the left and right sides of the selector knob
spring, then shift the knob spring to the left and right,
little by little, as shown in the fi gure. q
Note: Do not grasp the knob spring tightly.
2. Remove the selector knob spring w.
Note: Do not bring your fi ngers into contact with the fl at
spring of the knob spring as much as possible.
3. Repeat steps 1 and 2 for the volume knob spring, to re-
move the volume knob spring e.
Knob spring
Encoder
Note:
Perform the following procedures when installing the selec-
tor knob spring and volume knob spring.
1) Match the direction for the knob spring and the encoder.
2) Insert the encoder onto the knob spring until a click
sounds.
8

DISASSEMBLY FOR REPAIR

■ Removing the mechanical stopper (without LCD
models only)
1. Pick up and lift the tab of a mechanical stopper using a
pair of tweezers. q
Note: Take care not to damage the packing.
2. Remove the mechanical stopper w.

■ Removing the TX-RX unit from the chassis

1. Remove the fl at cable from the connector (CN2). q
2. Remove the Speaker lead wire from the connector (CN4).
w
3. Remove the PTT FPC from the connector (CN3). e
4. Remove the VOL/SEL FPC from the connector (CN1). r
Flat cable
5. Remove the packing t from the SP/MIC jack.
6. Remove the 14 screws y.
7. Anchor the screw hole of the TX-RX unit using the tip of a
pair of tweezers as shown in the fi gure. Then lift the TX-
RX unit to remove it from the chassis. u
PTT FPC
CN4
CN3
CN1
CN2
TX-RX unit