Daewoo KOG-37150S Service Manual page 20

D oes the fan m oto r w ork w hen yo u shut
the doo r and turn the tim e r?
Y E S
D oes the ove n lam p light?
D oes the turntab le turn?
Y E S
If m icrow a ve do not o scillate,
check co ntinuity of filam e nt
of m agnetron .
P oor continu ity
C heck th e iso lation of
N O G ood
filam en t w in ding o f high
voltage transform e r.
G ood
N O
N orm al
read ing should
be appro x. 0Ω
N O
C ontin uity
C heck continu ity fila m en t
tap (3.3V ) of h ig h voltage.
C heck th e diode for
continu ity in the reverse and
no rm al dire ction s.
M e ter w ith 6V o r hig her
voltage batteries should
be used to check the norm a l
directio n resistan ce of
the diode .
TROUBLE SHOOTING GUIDE
N O C ontinuity
C ontin uity
C ontin uity in
the reverse
directio n.
C ontin uity


R epla ce or repa ir oven la m p,
turntable m otor.
R epla ce hig h
voltage
transform er.
R epla ce hig h
voltage diode.
R epla ce
m a gnetron.
R epla ce hig h
voltage
transform er.
R epla ce
m a gnetron.