microwave oven model kor 131g kor-131h kor-130asvc.daewoo.com.mx/bbs/manual/kor-131g-h.pdf ·...
TRANSCRIPT
S
S/M No. : R131GH0A01
ervice Manual
Model : KOR-131G
Microwave Oven
Mar. 2000
KOR-131HKOR-130A
2
TABLE OF CONTENTS
SAFETY AND PRECAUTIONS ................................................................................................. 3FOR SAFE OPERATION............................................................................................................................... 3
FOR SAFE SERVICE PROCEDURES .......................................................................................................... 3
SPECIFICATIONS....................................................................................................................... 4EXTERNAL VIEW ...................................................................................................................... 5
OUTER DIMENSION .................................................................................................................................... 5
FEATURE DIAGRAM ................................................................................................................................... 6
CONTROL PANEL ........................................................................................................................................ 7
INSTALLATION.......................................................................................................................... 10OPERATIONS AND FUNCTIONS............................................................................................ 11DISASSEMBLY AND ASSEMBLY ........................................................................................... 12INTERLOCK MECHANISM AND ADJUSTMENT ............................................................... 19TROUBLE SHOOTING GUIDE ................................................................................................ 20MEASUREMENT AND TEST.................................................................................................... 24
MEASUREMENT OF THE MICROWAVE POWER OUTPUT.................................................................. 24
MICROWAVE RADIATION TEST .............................................................................................................. 25
COMPONENT TEST PROCEDURE............................................................................................................. 26
WIRING DIAGRAM.................................................................................................................... 27PRINTED CIRCUIT BOARD..................................................................................................... 28
CIRCUIT CHECK PROCEDURE.................................................................................................................. 28
P.C.B. CIRCUIT DIAGRAM ......................................................................................................................... 31
P.C.B. LOCATION NO .................................................................................................................................. 32
EXPLODED VIEW AND PARTS LIST .................................................................................... 33DOOR ASSEMBLY ....................................................................................................................................... 33
CONTROL PANEL ASSEMBLY .................................................................................................................. 33
TOTAL ASSEMBLY...................................................................................................................................... 33
(a) Do not operate or allow the oven to be operated with the door open. (b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave
source, and make repairs as necessary: (1) Interlock operation, (2) Proper door closing, (3) Seal and sealing surfaces (arcing, wear, and other damage), (4) Damage to or loosening of hinges and latches, (5) Evidence of dropping or abuse.
(c) Before turning on power to the microwave oven for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections.
(d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner.
(e) A microwave leakage check to verify compliance with the Federal performance standard should be performed on each oven prior to release to the owner.
PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVE ENERGY
!"#$%"&&"' ()" #" *%+*#,"-%.#"./0*# "#0*%#$%--& )%
"
1
2
3,
4
5
#
,
" "###%/-##""-%.#%#$*--& )%'#$#$%""."-% #
" "###%/-##"*%.6)%#$*--& )%0 #&!"0$6%.%#$**%.6)%/ 0&
1 ,
2 ,
, ,
,
7 ,
3 ,
).$
!"
*-%))#" *.%*089%)##")$ (%'#$"0# "#)%
!
"
#$ !%
&''( %x)x!)**&+x+%x+%,(
&''( )x !x)**&!+-x-+.x%+,(
'++%/0&+!123(
--*,+--345+
#
+ 6+#7+
' , ,
/
-
/ #
!
#, ' ,
,
!
*
:".;131(<
"#$%$&'();0
"%'*(+;) ,,
,$&-./0;0 =
.&-/--1;0
-2$;0
$%%;0
.&-$32-%&;0
-4$2;0
$32-%&;0
"&/0$,"#$2;0 , ,
*-/1;0
&-'5*$(2;0
&(2&5'$$)+/--1;0
:".;131$<
"#$%$&'();0
"%'*(+;) ,,
,$&-./0;0 =
-2$;0
$%%;0
.&-$32-%&;0
-4$2;0
$32-%&;0
"&/0$,"#$2;0 , ,
*-/1;0
&-'5*$(2;0
&(2&5'$$)+/--1;0
"#$%$&'();0
"%'*(+;) ,,
,$&-./0;0 =
.&-/--1;0
-2$;0
$%%;0
.&-$32-%&;0
-4$2;0
$32-%&;0
"&/0$,"#$2;0 , ,
*-/1;0
&-'5*$(2;0
&(2&5'$$)+/--1;0
&$()+63*(&*-/(&"-,
# ,
$(7$%'(/$8$0",)(,)%")$
,,,
4(+32-#2()"-(,)%$&%
- #6, ,
4(+32-#0$(&",9(''*"(,/$%(,)4(&$2&('%
: , ,
-4$2%.''*+
)
# = 7 12,12<6,><$?
- <@
1;
2&7 7
37 A
1# 7
2#7 3;
3#
:(#",$&0$-7$,(3&$2.,'(/1",93-2(,+)(#(9$%./0(%;
,
," "# *#&&,
1)
2 , #
3)
4#
# #,*#.#
5% ,8%%-
>#
B# A<
@#
C'*#"-D)&%. ,
# 7 ,*#"-D)&%.
,
1<*#.# ,
#
<(&&(9$-.&'.&/0(2&
# -"'%.# ,
""
(.&"-,%&-8$-8%$27$)40$,&2-.8*$%0--&",9
0 , ;, ;=
$,
!
1
20
3
1)
; 7
#
,,
2'
3< ,
'
,
4'2<
E ,
5 ,
,
>
!"##$!%"&$'(")%*+)%!*%#*",#-$"!)"" $+#-)%(+-#)"#
%#!#-)%+ $+#.)+,+*%#)"&%#-" $+#-%-% ")#)+$ +)!/+&!"0$)+$!%",
"1 "!#-("*+%! +)!++!0"$$"*!2+#!0"(.+-#)"#.+ +)"."'
-2$#-7$/(8",$&
1.
2-
-2$#-7$)--2(%%$#8*+
1.
2.
3.
-2$#-7$)--2'(2&%
1.
2.
3.
4.
5.
>.
B.
!" # "$! %& '
#" ($)*$#+, -
#" ($)*$#+,./-
( $!0
$ .0 $ ,#
" . $ ,.
( $!0
. $, "
, #
$., 1
4 Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need thelatest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
$&0-)&-2$)./$&0$9('8$&4$$,&0$)--2%$(*(,)&0$-7$,32-,&%.23(/$
1#FG
& ,
#
2#F8G
& ,
#
#"##!" $#%&#
!
"!
# $
%
!"
!#"
$
%&
'
( '))
(' !#"
(' $ !"
4 Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need thelatest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
-2$#-7$0"907-*&(9$/('(/"&-2
1.
$6
2.$6
3.
"907-*&(9$/"2/."&4"2",9
-2$#-7$#(9,$&2-,
1.
2.
3.
'#"!#"!!#"(
#!"%!#")#!"
* $#%&##!#
-2$#-7$4",)9.")$(%%$#8*+
1.
2
3-
4.
5.
>.
-2$#-7$&2(,%3-2#$2
1. $6
2.$6
3.
#
,
1-
' , ,
' , #
"
2*
' ,,
" #
"
3
&
/
#
!##+"##*#!#(
$#%&#)+##
-**-4",9&0$'2-/$).2$8$*-4&-/0$/1"3&0$-7$,"%)$3$/&"7$-2,-&
1)
28
3
4' , ,
)#
=! >"A
CHECK RESULT CAUSE REMEDY
Fuse blows.Continuity
No Continuity
Continuity
0 infiniteΩ or
Approx. 150~310(normal)
ReplaceNOTE 1
ReplaceNOTE 1
Replace
Replace
Check continuity ofprimary winding of low
voltage transformer
Malfunctionof interlock
monitorswitch
Defective lowvoltage
transformer
Check continuity ofinterlock monitor switchwith door closed
Replace fuse
Check continuity of primaryinterlock switch contactwith door partially openuntil interlock monitor switchcontact close
Shorted contactsof primaryinterlock switch.
Fuse againblows
Disconnect one side of thelead wire connected formhigh voltage transformerto the high voltage capacitorand operate the unit
Normal Defective highvoltage capacitor
Defective highvoltage transformer
Replace
CONDITION
%#$) +)!+%,'./!&)% "*"'!#")#!)')%*+$$"&)$)
%,*%+#!!.*#-+#'"##)'"0)%)(#+$!+#' "*"'/0"%,)% +)!$!)'/$"*
=! > , ,
CONDITION CHECK RESULT CAUSE REMEDY
Outlet has proper voltageFuse does not
blow.
Check continuity of magnetron
NoContinuity
Defectivemagnetron
Replace
Display do notshown countdown
NoContinuity
Normal Defective touchcontrol circuit
Open powersupply cord
Malfunction ofsecondary
interlock switch
ReplaceCheck continuity ofpower supply cord
Replace
Replace
$$)%!!*)%!(&!)/ $+'+))%!+()(. $+!0)"3#)$",%+#!(#''4&!)(#)5
CONDITION CHECK RESULT CAUSE REMEDY
Turn table motor, and
oven lamp donot turn on
NoContinuity
Check continuity ofprimary interlock switch
Check continuity ofsecondary interlock switch
Check D.C. voltagebeing supplied toRELAY (RY2) coil
Malfunctionof primary
interlock switch
Malfunctionof secondary
interlock switch
Defectivetouch control
circuit
Faultycontacts of
RELAY(RY2) or open
relay coil
Adjust orReplace
Adjust orReplace
Replace
Replace
NoContinuity
0 V
Approx15 VDC
! >
CONDITION CHECK RESULT
Continuity
Continuity inbackwarddirection
0 Ω or
NoContinuity
NoContinuity
0 V
Approx15 VDC
CAUSE
Defectivehigh voltagetransformer
Defectivehigh voltage
rectifier
Defectivemagnetron
Defectivemagnetron
Defectivehigh voltagetransformer
Defectivehigh voltagetransformer
Defectivetouch control
circuit
Faultycontacts of
RELAY(RY1) or open
relay coil
REMEDY
Replace
Replace
Replace
Replace
Replace
Replace
Replace
Replace
No microwaveoscillation
Check continuity of highvoltage rectifier in
forward and backwarddirection with DC
megger
Check continuity of highvoltage capacitor
terminals with wiresremoved
Connect megger leads tomagnetron terminal and
magnetron body
Check resistance ofprimary and secondary
coil of high voltagetransformer
Check continuity ofmagnetron with wires
removed
Check continuity offilament terminal of high
voltage transformer
Check D.C. voltagebeing supplied toRELAY (RY1) coil
Continuity
=! >#
1,
1*
2-
3
4HA<I
2
3"
4
5* 723
>
B"
@
C
1<
11" ) .%&!2
,
CONDITION CHECK RESULT CAUSE REMEDY
Display does not show
programming at all, even if keyboard is
touched.
Normal Replacecontrol box
sub-assembly
Replace themembranekeyborad
Malfunctionof touch
control circuitof control boxsub-assembly
Abnormal
Check each pad forcontinuity of the
membrane keyboard for the following keyboard check
procedure
Malfunction ofthe membrane
keyboard
0"0"$$"*#-)% +)&$+!) !$!)'+/"#)%)"&/$!%"")#--&'0")%((/+#,6/"+'7!.0+$2
&. $+!%,0")%"#)#&)6"0+%*2%+#!!/)*#)%((/+#,6/"+'+#'+!!(/$6
/ 7
!
1/
7 1<<<J5
2# 7 3
7 1C<
3# #
1<J2K)5<J3>K
, ,
4/
5$ 7
.
$
# ;
>#
7
5:
B# -
A
#
#8.*-%))#" *'J1<<L
$(&",9&"#$3-2'-4$2-.&'.&;
+23-
(+1-
x
,%# ,
-*!" "./ *0**' 1
2##-3
!
1-/ %*/,
><<,
1<<K)212K
2-2B5J15 2<J5K)
>@JCK ><<
7C535
3-
4)
5/ / %
*/ ,245</$?
1/ 7
&
4'D
2' ,52 $
-, ,, ,7
3/ ; 1 D
,
4' ,
2 ,
8+,!&)"%,)%("*+$+,+-/0"+#'+0) +"0+'4&!)(#)
9$*+6!!)+)(+!&#-"0+#&#,#"*#0$')"+!!&!+0)60"" +)#- !"##$0"(("*+#-6
:"#") $+6"&%+#'!#)"+#6!&! )'("*++'+)"#0$'&#$!!)%!+0'#!)6$$!,#"*#
;+!%"&$'/)+,##"))" $+)%6!#')$#*)%)%!"&"0("*+#-6
<$"*$6+ "+%)%&#)&#')!)&#)$)%+'"()+'!+#+ +/$("*+$+,+-0"()%&#)
&#')%)!)
$
"907-*&(9$&2(,%3-2#$2
1.
2 A
* 711< J1<L
7<
- 71
"907-*&(9$/('(/"&-2
1) "$/
2 , 1</
3
4 1</
5.
"907-*&(9$)"-)$
1
2' .
/ >6,C6
; ,
M
(9,$&2-,
,H// -"N)
# ,
1
2 <1
3
.%$
,
,
.
29
MP1
MP2
PRINTED CIRCUIT BOARD
Measure Point
-47-*&(9$&2(,%3-2#$2/0$/1
# -)8
/ AA12<6D=A><$?
-*&(9$/0$/1
;:
;)
45672658 9 " 9 "
!7 !7
!" #$ %"&%#
!*** 7"!
!
:+;-
!
:+#;-
&"'(%"$ )*"+%& %"&", %"&%#
# "!7<7 =6579*! 9 "
# "!7<7 =65!*"** 9 "
!" #$
!"#$%& &' !()$&*+,"#$%&
<0$,&0$2$"%,-#"/2-4(7$-%/"**(&"-,
1' ,
,
)A) - 3
;)
2' ,
)A) - 2
;)
<0$,&0$)--2"%-'$,$)).2",9-'$2(&"-,6&0$/-.,&)-4,&"#$2)-$%,-&%&-'
) - 1
;)
5'
) - 5
7 , .15,1>,? O1
$
'" -
7"! ."
." 7"!
$
'" -
7"! ."
." 7"!
$
'" -
-" 7"!
-"!9$" !9$ ."
!" #
&"! %"&",
$ )*"+%&
:+;-
!
" "# #
" "# #
" ! !!
$ %% %&'#& !!$ %!!$
# %% %'! !! %!!
%% % ()" %
%% % (#)" %#
%% % %%*+ %%%*+
$ $( #(# ! !
! )$, $!,
& )" - %,
$''!' )" - %, !
'' )" - %!,
$ )" - %,
# & )" - %,
$ )" - % ,
# )!" - %! ,
* # #
.& '#& $
! .
" %
" ,, )( * $ $ *
" , )( * $ $ *
$ !!!*! **+
# !( !
" * *%
" , !!
+
& ' ! +!
! # )" - %,
)"!( - %!,
4 Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need thelatest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
.
.
=>
?? :<88@8:<8? 28:?? 8
:<88@8:<?? 28:8? 8
?? :<8A@9;?8? 2 28:?? 8
:<8A@9;??? 2 28:8? 8
:<8A@9;?9? 2 28:8? 8
?8 :<8?B?:8?? ?A 8
?9 :<8A??;8?? 8;;C8? :
?: :<8A888<?? 28:8? 8
:<8A888A?? D 28:8? 8
?; @899;?8988 9;C89 8
?< @899;?8988 9;C89 8
?A @889;?8?88 8;C8? 8
?@ :<88: < :8A;?;?89?2 8
?B ;;8:E??89 AA 8
?E @899;?8988 9;C89 8
8? @898;?:?88 A<89<9? 8
88 :<8BA?<B?? AA 8
89 @898;?:?88 9;C:? 9
8: :EA:B999?? 89?:?28<82?: 8
8; :<89<9???? 8
8< :<88B??8?? 9? 8
8A :<8B??99?? 998BDFG 8
8@ :<8A??:B?? 9 <B 8
8B @9@98??B88 :;B 8
8E :<8:??:9?? ?A 8
9? :<8B:?99?? 98???EB&H8B@ 8
98 :<8B;??;?? 282:89H8B@ 8
99 :<8B88A@8? 2 E<?28: 8
9: :<8A??:@?? :;B ;
9; :<8?:8:;?? ?@ 8
9< @889;?8?88 8;8? <
9A :<898??E?? 28:? 9
9@ @9@9;??B88 :;B 8
9B :<8<9?9B?? C 2898? 8
9E :<89@8@;?? 28:8? 8
:? ;;8<8@:<9 2<::2 H8B@9?? 9
:8 ;;8<AAA?? 2<:92I28A22A9 8
4 Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need thelatest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
=>
:9 ;;8<AAE8? 2<:82I28A22A8 8
:: :<8:@?8:?? 8
:; :<8:B8;:?? 8
:< :<8:A?8<?? 89<9<9<<8B@ 8
:A @898;??A88 9 ;A 8
:@ :EAAB9?9?? 89?928A2898@ 8
:B :<8BE?<:?? J@< JA<H8B@ 8
:E :<8:??:;?? 8
;? @9@9;??B88 :;B 9
;8 :<88;?A9?? 8
;9 :<8@;??A9? 8
;: ;;8::A?9? 28??> :
;; :<89<8E:?? <88:A:<: 8
;< ;;8::<8? 28F G 8
4 Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need thelatest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)