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4. Troubleshooting
4-1 Failure Display Codes
* Explain of primary parts of Main PCB
IC03
(7805)
IC02
(7812)
CN10
ZNR1
(Varistor)
CN03
CN03
CN01
CN01
CN02
CN02
CN04,CN05
CN04,CN05
CN07
CN07
( Main PCB )
( Main PCB )
CN08, CN09
CN08, CN09
Explatin of the function of primary parts .
CN01
This is connector which is connected with Door plunger switch and Door lock switch .
(COM-NO)
CN02
This is connector which is connected with oven sensor .
CN03
This is to stop operating self-cleaning and steam mode if hot indicator lamp on cooktop is
lighted with being supplied with AC120V(L1, N) .
CN04,CN05 This connector is to get all operating of relay on sub PCB to be connected .
CN07
This is consisted of 15 pin and take a role of getting a cable on keypad to connect with touch
PCB .
CN08,CN09
This is to supply power with primary on Low voltage transformer, and AC120V with main PCB
through harness .
It won’t be problem even though CN08 and CN09 has been changed when you insert housing.
CN10
This is connector which take a role of supplying secondary voltage of Low voltage transformer
with main PCB .
ZNR1
This is the element to protect main PCB, getting varistor to work if over voltage is supplied with
varistor .
IC02
This is to supply DC12V with main PCB by voltage regulator .
IC03
This is to supply DC5V with main PCB by voltage regulator .