Kenwood TK-5220 K Service Manual page 8

TK-5220
3. Precautions for Reassembly
■ Mounting the chassis onto the case
1. Place the key top on the chassis. Then, fi t the chassis
tightly into the groove of the key top q.
Note:
Confi rm that the entire groove of the key top fi ts to the
chassis tightly.
2. Mount the chassis onto the case w.
Note:
After mounting the chassis onto the case, if the 18-key
part on the key top or the Auxiliary (Orange) key part of
the VOL/CH packing gets stuck inside the case as shown
in the fi gure, return it to the normal position using a soft
tipped item (e.g., fi nger) e.
Prying it with a pointed metal tool such as forceps, may
damage the key top or packing.
■ Removing the lithium cell (W09-0971-05)
Insert a non-conductive screwdriver to groove of one
side of the socket (CN401) and pry the lithium cell up
from the socket.
8
DISASSEMBLY FOR REPAIR
18-key part
Auxiliary
(Orange) key
■ Installing the lithium cell (W09-0971-05)
Insert a lithium cell into one side of the socket (CN401).
Push the lithium cell to insert the lithium cell into the
socket.
■ Affi xing the keyboard ASSY (S79-0472-05)
Affi x the keyboard ASSY to the Control unit as shown in
the fi gure.
After affixing the keyboard ASSY to the Control unit,
confi rm that the three positioning holes of the keyboard
ASSY and the Control unit are not misaligned.
Note:
If the holder (Option board) is removed from the Control
unit, it becomes easy to confirm the three positioning
holes.
Positioning holes
■ Inserting the Volume and Channel switch into
the chassis
Insert the volume and channel switch into the chassis
with the VOL/CH FPC formed as shown in the fi gure.
Volume
Channel switch
Keyboard
ASSY
Control unit
VOL/CH FPC