2
KX-TG4222CB/KX-TG313CSK/KX-TGA421CB/KX-TGA421CN
WARNING
Thi
s
s
ervice inform
a
tion i
s
de
s
igned for experienced rep
a
ir technici
a
n
s
only
a
nd i
s
not de
s
igned for u
s
e
b
y the gener
a
l
pu
b
lic. It doe
s
not cont
a
in w
a
rning
s
or c
a
ution
s
to
a
dvi
s
e non-technic
a
l individu
a
l
s
of potenti
a
l d
a
nger
s
in
a
ttempting
to
s
ervice
a
product. Product
s
powered
b
y electricity
s
hould
b
e
s
erviced or rep
a
ired only
b
y experienced profe
ss
ion
a
l
technici
a
n
s
. Any
a
ttempt to
s
ervice or rep
a
ir the product or product
s
de
a
lt with in thi
s
s
ervice inform
a
tion
b
y
a
nyone
el
s
e could re
s
ult in
s
eriou
s
injury or de
a
th.
IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by
in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that
these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT INFORMATION ABOUT LEAD FREE, (PbF), SOLDERING
If lead free solder was used in the manufacture of this product, the printed circuit boards will be marked PbF.
Standard leaded, (Pb), solder can be used as usual on boards without the PbF mark.
When this mark does appear, please read and follow the special instructions described in this manual on the
use of PbF and how it might be permissible to use Pb solder during service and repair work.
L
When you note the serial number, write down all 11 digits. The serial number may be found on the bottom of the unit.
L
The illustrations in this Service Manual may vary slightly from the actual product.
