JRC JMA-1030 Series - 9.4 Replacement of Major Parts

Chap
124
ter 9 MAI
N
9.4
R
The syste
m
Use of par
t
N
TENANC
E
R
EPLA
m
includes p
t
s over their
E
AND CHE
CEME
N
arts that ne
e
service life
Direct exp
o
effects on
t
for mainte
n
power swi
t
When con
d
unplug the
to the equi
Some equi
power swi
t
unpluggin
g
failure, or
a
Make sure
Failure to
c
When repl
a
the equip
m
circuit.
Failure to
c
Make sure
magnetron
Failure to
c
a strong m
Since it wil
main pow
e
Failure to
c
CK
N
T OF
e
d periodic
r
can cause
a
o
sure to el
e
t
he human
n
ance or in
s
t
ch to “OF
F
d
ucting ma
i
power co
n
pment is c
o
pment co
m
t
ch is turne
g
the powe
r
a
ccidents.
to shut off
c
omply ma
y
a
cing mag
n
m
ent stand
f
c
omply ma
y
to take off
.
c
omply ma
y
agnet.
l be high v
o
e
r is shut o
f
c
omply ma
y
MAJ
O
r
eplacemen
a
system fai
e
ctromagn
e
body. Whe
s
pection p
u
F
” or “STB
Y
i
ntenance
w
n
nector J1
o
o
mpletely
c
m
ponents c
a
d off, and
c
r
connecto
r
the main p
y
result in
e
n
etrons, m
a
f
or more th
y
result in
e
your watc
h
y
result in
d
o
ltage tem
p
f
f.
y
result in
e
O
R PA
R
t. The parts
lure.
e
tic waves
a
n it is nec
e
u
rposes, m
Y
.”
w
ork, make
o
f the displ
c
ut off.
a
n carry el
e
c
onducting
r
may resul
ower befor
e
lectrocuti
o
a
ke sure to
s
an 5 minut
e
e
lectrocuti
o
h
when you
r
d
amage to
t
p
orarily re
m
e
lectrocuti
o
R
TS
should be
r
a
t close ra
n
e
ssary to g
e
ake sure t
o
sure to tu
r
ay unit so
t
e
ctrical cur
r
maintena
n
t in electro
e replacin
g
o
n or equip
m
s
hut off th
e
e
s to disch
o
n.
r
hand mu
s
t
he watch
s
m
ains in th
e
o
n.
r
eplaced as
n
ge will ha
v
e
t close to
t
o
turn the i
n
r
n off the p
o
t
hat the po
w
r
ent even a
n
ce work wi
cution, eq
u
g
parts.
m
ent failur
e
e
main po
w
arge the hi
g
s
t get close
s
ince the m
a
e
circuit ev
e
scheduled.
v
e adverse
t
he antenn
a
n
dicator
o
wer and
w
er supply
fter the
thout
u
ipment
e
.
w
er and let
g
h-voltage
to the
a
gnetron i
s
e
n after th
e
a
s
e