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Daewoo KOR-630A0A Service Manual
Also see for KOG-867T: Operating instructionsService manual
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Contents
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PRINTED CIRCUIT BOARD3. W hen there is no microwave oscillation1) W hen touching START pad, oven lam p does not turn on.Fan m otor do not rotate, but cook indicator in display com es on. Cause : RELAY 2 does not operate. refer to Circuit Diagram ( Point 3)- Check m ethod2) W hen touching START pad, oven lam p turns on.Fan m otor and turntable rotate and cook indicator in display com es on. Cause : RELAY 1 does not operate. refer to Circuit Diagram ( Point 2 )- Check m ethod4. W hen the door is opened during operation, the count down timer does not stop.refer to Circuit Diagram ( Point 1 )- Check m ethod5. W hen the digital clock does not operate properly.refer to Circuit Diagram ( Point 5 )If clock does not keep exact tim e, you m ust check resistor R15,16, zener diodeZD1.POINTSTATE A BRE LA Y 2 O N - 5V DC G N DRELA Y 2 O F F G N D - 12V DCP OINTSTATE A BR E LA Y 1 O N -5VD C G N DRELA Y 1 O FF G ND -12VD CPO INTSTATE A B1) D O O R O P E N O P EN -5V D C2) D O O R C LO S E D C LO SE G N DCHECK N O METHOD REM EDY1 C heck the stage(O N ,O FF ) of the secondary interlock sw itch by resistancem easurem ent.R e p la ce se co n d ary in terlo ck sw itch .POINT WAVE FORMA T: 16.7 m s(60H z) |
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