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19
8 Inspection method of components on control board
RL
Relay
Inspection method
Qualifi ed Defective
Connect TP[G]-[RL1],
and check if the power
c o n s u m p t i o n i s t h e
rated cooking power.
and check if the power
c o n s u m p t i o n i s t h e
rated cooking power.
Yes
No
Unplug the power and
check if the resistance
between TP [A1] and
[RL5] is
check if the resistance
between TP [A1] and
[RL5] is
∞ Ω?
N o t e 1 : D i s c o n n e c t
t h e c o n n e c t o r C N 3
before measuring the
resistance.
Note 2: Connect one
end of TP [A1] to the
positive terminal.
t h e c o n n e c t o r C N 3
before measuring the
resistance.
Note 2: Connect one
end of TP [A1] to the
positive terminal.
Yes
No
LED5
LED
Detection
method
Qualifi ed Defective
If LED5 lights up
when it is short-
circuited between
TP [G] and [L5]?
when it is short-
circuited between
TP [G] and [L5]?
Yes
No
X1
Crystal
Detection
method
Qualifi ed Defective
Output 8 MHZ
between TP
[G] and [X1]?
between TP
[G] and [X1]?
Yes
No
LED4
LED
Detection
method
Qualifi ed
Defective
If LED4 lights
up when it is
short-circuited
b e t w e e n T P
[G] and [L4]?
up when it is
short-circuited
b e t w e e n T P
[G] and [L4]?
Yes
No
SW2
Tact switch
Detection
method
Qualifi ed
Defective
H o l d d o w n
S W 2 a n d
m e a s u r e i f
the resistance
between TP
[VD] and [S2]
is 0
S W 2 a n d
m e a s u r e i f
the resistance
between TP
[VD] and [S2]
is 0
Ω?
Yes
No
LED3
LED
Detection
method
Qualifi ed Defective
If LED3 lights
up when it is
short-circuited
b e t w e e n T P
[G] and [L3]?
up when it is
short-circuited
b e t w e e n T P
[G] and [L3]?
Yes
No
SW4
Tact switch
Detection
method
Qualifi ed Defective
H o l d d o w n
S W 4 a n d
m e a s u r e i f
the resistance
b e t w e e n T P
[VD] and [S4]
is 0
S W 4 a n d
m e a s u r e i f
the resistance
b e t w e e n T P
[VD] and [S4]
is 0
Ω?
Yes
No
SW1
Tact switch
Detection
method
Qualifi ed Defective
H o l d d o w n
S W 1 a n d
m e a s u r e i f
the resistance
b e t w e e n T P
[VD] and [S1]
is 0
S W 1 a n d
m e a s u r e i f
the resistance
b e t w e e n T P
[VD] and [S1]
is 0
Ω?
Yes
No
SW3
Tact switch
Detection
method
Qualifi ed Defective
H o l d d o w n
S W 3 a n d
m e a s u r e i f
the resistance
b e t w e e n T P
[VD] and [S3]
is 0
S W 3 a n d
m e a s u r e i f
the resistance
b e t w e e n T P
[VD] and [S3]
is 0
Ω?
Yes
No
LED1
LED
Detection
method
Qualifi ed Defective
If LED1 lights
up when it is
short-circuited
between TP [G]
and [L1]?
up when it is
short-circuited
between TP [G]
and [L1]?
Yes
No
LED2
LED
Detection
method
Qualifi ed Defective
If LED2 lights
up when it is
short-circuited
between TP [G]
and [L2]?
up when it is
short-circuited
between TP [G]
and [L2]?
Yes
No
SW5
Tact switch
Detection method Qualifi ed Defective
H o l d d o w n S W 5
and measure if the
resistance between
TP [VD] and [S5] is
0
and measure if the
resistance between
TP [VD] and [S5] is
0
Ω?
Yes
No
SW6
Tact switch
Detection method
Qualifi ed
Defective
H o l d d o w n S W 6
and measure if the
resistance between
TP [VD] and [S6] is
0
and measure if the
resistance between
TP [VD] and [S6] is
0
Ω?
Yes
No
IP3830_SR-DF101_Eng_19_121224.in章节1:19 章节1:19
2012-12-24 17:19:43
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